/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
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x;};}})();YAHOO.util.Region=function(C,D,A,B){this.top=C;this.y=C;this[1]=C;this.right=D;this.bottom=A;this.left=B;this.x=B;this[0]=B;this.width=this.right-this.left;this.height=this.bottom-this.top;};YAHOO.util.Region.prototype.contains=function(A){return(A.left>=this.left&&A.right<=this.right&&A.top>=this.top&&A.bottom<=this.bottom);};YAHOO.util.Region.prototype.getArea=function(){return((this.bottom-this.top)*(this.right-this.left));};YAHOO.util.Region.prototype.intersect=function(E){var C=Math.max(this.top,E.top),D=Math.min(this.right,E.right),A=Math.min(this.bottom,E.bottom),B=Math.max(this.left,E.left);if(A>=C&&D>=B){return new YAHOO.util.Region(C,D,A,B);
}else{return null;}};YAHOO.util.Region.prototype.union=function(E){var C=Math.min(this.top,E.top),D=Math.max(this.right,E.right),A=Math.max(this.bottom,E.bottom),B=Math.min(this.left,E.left);return new YAHOO.util.Region(C,D,A,B);};YAHOO.util.Region.prototype.toString=function(){return("Region {"+"top: "+this.top+", right: "+this.right+", bottom: "+this.bottom+", left: "+this.left+", height: "+this.height+", width: "+this.width+"}");};YAHOO.util.Region.getRegion=function(D){var F=YAHOO.util.Dom.getXY(D),C=F[1],E=F[0]+D.offsetWidth,A=F[1]+D.offsetHeight,B=F[0];return new YAHOO.util.Region(C,E,A,B);};YAHOO.util.Point=function(A,B){if(YAHOO.lang.isArray(A)){B=A[1];A=A[0];}YAHOO.util.Point.superclass.constructor.call(this,B,A,B,A);};YAHOO.extend(YAHOO.util.Point,YAHOO.util.Region);(function(){var B=YAHOO.util,A="clientTop",F="clientLeft",J="parentNode",K="right",W="hasLayout",I="px",U="opacity",L="auto",D="borderLeftWidth",G="borderTopWidth",P="borderRightWidth",V="borderBottomWidth",S="visible",Q="transparent",N="height",E="width",H="style",T="currentStyle",R=/^width|height$/,O=/^(\d[.\d]*)+(em|ex|px|gd|rem|vw|vh|vm|ch|mm|cm|in|pt|pc|deg|rad|ms|s|hz|khz|%){1}?/i,M={get:function(X,Z){var Y="",a=X[T][Z];if(Z===U){Y=B.Dom.getStyle(X,U);}else{if(!a||(a.indexOf&&a.indexOf(I)>-1)){Y=a;}else{if(B.Dom.IE_COMPUTED[Z]){Y=B.Dom.IE_COMPUTED[Z](X,Z);}else{if(O.test(a)){Y=B.Dom.IE.ComputedStyle.getPixel(X,Z);}else{Y=a;}}}}return Y;},getOffset:function(Z,e){var b=Z[T][e],X=e.charAt(0).toUpperCase()+e.substr(1),c="offset"+X,Y="pixel"+X,a="",d;if(b==L){d=Z[c];if(d===undefined){a=0;}a=d;if(R.test(e)){Z[H][e]=d;if(Z[c]>d){a=d-(Z[c]-d);}Z[H][e]=L;}}else{if(!Z[H][Y]&&!Z[H][e]){Z[H][e]=b;}a=Z[H][Y];}return a+I;},getBorderWidth:function(X,Z){var Y=null;if(!X[T][W]){X[H].zoom=1;}switch(Z){case G:Y=X[A];break;case V:Y=X.offsetHeight-X.clientHeight-X[A];break;case D:Y=X[F];break;case P:Y=X.offsetWidth-X.clientWidth-X[F];break;}return Y+I;},getPixel:function(Y,X){var a=null,b=Y[T][K],Z=Y[T][X];Y[H][K]=Z;a=Y[H].pixelRight;Y[H][K]=b;return a+I;},getMargin:function(Y,X){var Z;if(Y[T][X]==L){Z=0+I;}else{Z=B.Dom.IE.ComputedStyle.getPixel(Y,X);}return Z;},getVisibility:function(Y,X){var Z;while((Z=Y[T])&&Z[X]=="inherit"){Y=Y[J];}return(Z)?Z[X]:S;},getColor:function(Y,X){return B.Dom.Color.toRGB(Y[T][X])||Q;},getBorderColor:function(Y,X){var Z=Y[T],a=Z[X]||Z.color;return B.Dom.Color.toRGB(B.Dom.Color.toHex(a));}},C={};C.top=C.right=C.bottom=C.left=C[E]=C[N]=M.getOffset;C.color=M.getColor;C[G]=C[P]=C[V]=C[D]=M.getBorderWidth;C.marginTop=C.marginRight=C.marginBottom=C.marginLeft=M.getMargin;C.visibility=M.getVisibility;C.borderColor=C.borderTopColor=C.borderRightColor=C.borderBottomColor=C.borderLeftColor=M.getBorderColor;B.Dom.IE_COMPUTED=C;B.Dom.IE_ComputedStyle=M;})();(function(){var C="toString",A=parseInt,B=RegExp,D=YAHOO.util;D.Dom.Color={KEYWORDS:{black:"000",silver:"c0c0c0",gray:"808080",white:"fff",maroon:"800000",red:"f00",purple:"800080",fuchsia:"f0f",green:"008000",lime:"0f0",olive:"808000",yellow:"ff0",navy:"000080",blue:"00f",teal:"008080",aqua:"0ff"},re_RGB:/^rgb\(([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\)$/i,re_hex:/^#?([0-9A-F]{2})([0-9A-F]{2})([0-9A-F]{2})$/i,re_hex3:/([0-9A-F])/gi,toRGB:function(E){if(!D.Dom.Color.re_RGB.test(E)){E=D.Dom.Color.toHex(E);}if(D.Dom.Color.re_hex.exec(E)){E="rgb("+[A(B.$1,16),A(B.$2,16),A(B.$3,16)].join(", ")+")";}return E;},toHex:function(H){H=D.Dom.Color.KEYWORDS[H]||H;if(D.Dom.Color.re_RGB.exec(H)){var G=(B.$1.length===1)?"0"+B.$1:Number(B.$1),F=(B.$2.length===1)?"0"+B.$2:Number(B.$2),E=(B.$3.length===1)?"0"+B.$3:Number(B.$3);H=[G[C](16),F[C](16),E[C](16)].join("");}if(H.length<6){H=H.replace(D.Dom.Color.re_hex3,"$1$1");}if(H!=="transparent"&&H.indexOf("#")<0){H="#"+H;}return H.toLowerCase();}};}());YAHOO.register("dom",YAHOO.util.Dom,{version:"2.7.0",build:"1796"});YAHOO.util.CustomEvent=function(D,C,B,A){this.type=D;this.scope=C||window;this.silent=B;this.signature=A||YAHOO.util.CustomEvent.LIST;this.subscribers=[];if(!this.silent){}var E="_YUICEOnSubscribe";if(D!==E){this.subscribeEvent=new YAHOO.util.CustomEvent(E,this,true);}this.lastError=null;};YAHOO.util.CustomEvent.LIST=0;YAHOO.util.CustomEvent.FLAT=1;YAHOO.util.CustomEvent.prototype={subscribe:function(A,B,C){if(!A){throw new Error("Invalid callback for subscriber to '"+this.type+"'");}if(this.subscribeEvent){this.subscribeEvent.fire(A,B,C);}this.subscribers.push(new YAHOO.util.Subscriber(A,B,C));},unsubscribe:function(D,F){if(!D){return this.unsubscribeAll();}var E=false;for(var B=0,A=this.subscribers.length;B<A;++B){var C=this.subscribers[B];if(C&&C.contains(D,F)){this._delete(B);E=true;}}return E;},fire:function(){this.lastError=null;var K=[],E=this.subscribers.length;if(!E&&this.silent){return true;}var I=[].slice.call(arguments,0),G=true,D,J=false;if(!this.silent){}var C=this.subscribers.slice(),A=YAHOO.util.Event.throwErrors;for(D=0;D<E;++D){var M=C[D];if(!M){J=true;}else{if(!this.silent){}var L=M.getScope(this.scope);if(this.signature==YAHOO.util.CustomEvent.FLAT){var B=null;if(I.length>0){B=I[0];}try{G=M.fn.call(L,B,M.obj);}catch(F){this.lastError=F;if(A){throw F;}}}else{try{G=M.fn.call(L,this.type,I,M.obj);}catch(H){this.lastError=H;if(A){throw H;}}}if(false===G){if(!this.silent){}break;}}}return(G!==false);},unsubscribeAll:function(){var A=this.subscribers.length,B;for(B=A-1;B>-1;B--){this._delete(B);}this.subscribers=[];return A;},_delete:function(A){var B=this.subscribers[A];if(B){delete B.fn;delete B.obj;}this.subscribers.splice(A,1);},toString:function(){return"CustomEvent: "+"'"+this.type+"', "+"context: "+this.scope;}};YAHOO.util.Subscriber=function(A,B,C){this.fn=A;this.obj=YAHOO.lang.isUndefined(B)?null:B;this.overrideContext=C;};YAHOO.util.Subscriber.prototype.getScope=function(A){if(this.overrideContext){if(this.overrideContext===true){return this.obj;}else{return this.overrideContext;}}return A;};YAHOO.util.Subscriber.prototype.contains=function(A,B){if(B){return(this.fn==A&&this.obj==B);}else{return(this.fn==A);}};YAHOO.util.Subscriber.prototype.toString=function(){return"Subscriber { obj: "+this.obj+", overrideContext: "+(this.overrideContext||"no")+" }";};if(!YAHOO.util.Event){YAHOO.util.Event=function(){var H=false;var I=[];var J=[];var G=[];var E=[];var C=0;var F=[];var B=[];var A=0;var D={63232:38,63233:40,63234:37,63235:39,63276:33,63277:34,25:9};var K=YAHOO.env.ua.ie?"focusin":"focus";var L=YAHOO.env.ua.ie?"focusout":"blur";return{POLL_RETRYS:2000,POLL_INTERVAL:20,EL:0,TYPE:1,FN:2,WFN:3,UNLOAD_OBJ:3,ADJ_SCOPE:4,OBJ:5,OVERRIDE:6,lastError:null,isSafari:YAHOO.env.ua.webkit,webkit:YAHOO.env.ua.webkit,isIE:YAHOO.env.ua.ie,_interval:null,_dri:null,DOMReady:false,throwErrors:false,startInterval:function(){if(!this._interval){var M=this;var N=function(){M._tryPreloadAttach();};this._interval=setInterval(N,this.POLL_INTERVAL);}},onAvailable:function(S,O,Q,R,P){var M=(YAHOO.lang.isString(S))?[S]:S;for(var N=0;N<M.length;N=N+1){F.push({id:M[N],fn:O,obj:Q,overrideContext:R,checkReady:P});}C=this.POLL_RETRYS;this.startInterval();},onContentReady:function(P,M,N,O){this.onAvailable(P,M,N,O,true);},onDOMReady:function(M,N,O){if(this.DOMReady){setTimeout(function(){var P=window;if(O){if(O===true){P=N;}else{P=O;}}M.call(P,"DOMReady",[],N);},0);}else{this.DOMReadyEvent.subscribe(M,N,O);}},_addListener:function(O,M,Y,S,W,b){if(!Y||!Y.call){return false;}if(this._isValidCollection(O)){var Z=true;for(var T=0,V=O.length;T<V;++T){Z=this.on(O[T],M,Y,S,W)&&Z;}return Z;}else{if(YAHOO.lang.isString(O)){var R=this.getEl(O);if(R){O=R;}else{this.onAvailable(O,function(){YAHOO.util.Event.on(O,M,Y,S,W);});return true;}}}if(!O){return false;}if("unload"==M&&S!==this){J[J.length]=[O,M,Y,S,W];return true;}var N=O;if(W){if(W===true){N=S;}else{N=W;}}var P=function(c){return Y.call(N,YAHOO.util.Event.getEvent(c,O),S);};var a=[O,M,Y,P,N,S,W];var U=I.length;I[U]=a;if(this.useLegacyEvent(O,M)){var Q=this.getLegacyIndex(O,M);if(Q==-1||O!=G[Q][0]){Q=G.length;B[O.id+M]=Q;G[Q]=[O,M,O["on"+M]];E[Q]=[];O["on"+M]=function(c){YAHOO.util.Event.fireLegacyEvent(YAHOO.util.Event.getEvent(c),Q);};}E[Q].push(a);}else{try{this._simpleAdd(O,M,P,b);}catch(X){this.lastError=X;this.removeListener(O,M,Y);return false;}}return true;},addListener:function(N,Q,M,O,P){return this._addListener(N,Q,M,O,P,false);},addFocusListener:function(N,M,O,P){return this._addListener(N,K,M,O,P,true);},removeFocusListener:function(N,M){return this.removeListener(N,K,M);},addBlurListener:function(N,M,O,P){return this._addListener(N,L,M,O,P,true);},removeBlurListener:function(N,M){return this.removeListener(N,L,M);},fireLegacyEvent:function(R,P){var T=true,M,V,U,N,S;V=E[P].slice();for(var O=0,Q=V.length;O<Q;++O){U=V[O];if(U&&U[this.WFN]){N=U[this.ADJ_SCOPE];S=U[this.WFN].call(N,R);T=(T&&S);}}M=G[P];if(M&&M[2]){M[2](R);}return T;},getLegacyIndex:function(N,O){var M=this.generateId(N)+O;if(typeof B[M]=="undefined"){return -1;}else{return B[M];}},useLegacyEvent:function(M,N){return(this.webkit&&this.webkit<419&&("click"==N||"dblclick"==N));},removeListener:function(N,M,V){var Q,T,X;if(typeof N=="string"){N=this.getEl(N);}else{if(this._isValidCollection(N)){var W=true;for(Q=N.length-1;Q>-1;Q--){W=(this.removeListener(N[Q],M,V)&&W);}return W;}}if(!V||!V.call){return this.purgeElement(N,false,M);}if("unload"==M){for(Q=J.length-1;Q>-1;Q--){X=J[Q];if(X&&X[0]==N&&X[1]==M&&X[2]==V){J.splice(Q,1);return true;}}return false;}var R=null;var S=arguments[3];if("undefined"===typeof S){S=this._getCacheIndex(N,M,V);}if(S>=0){R=I[S];}if(!N||!R){return false;}if(this.useLegacyEvent(N,M)){var P=this.getLegacyIndex(N,M);var O=E[P];if(O){for(Q=0,T=O.length;Q<T;++Q){X=O[Q];if(X&&X[this.EL]==N&&X[this.TYPE]==M&&X[this.FN]==V){O.splice(Q,1);break;}}}}else{try{this._simpleRemove(N,M,R[this.WFN],false);}catch(U){this.lastError=U;return false;}}delete I[S][this.WFN];delete I[S][this.FN];
I.splice(S,1);return true;},getTarget:function(O,N){var M=O.target||O.srcElement;return this.resolveTextNode(M);},resolveTextNode:function(N){try{if(N&&3==N.nodeType){return N.parentNode;}}catch(M){}return N;},getPageX:function(N){var M=N.pageX;if(!M&&0!==M){M=N.clientX||0;if(this.isIE){M+=this._getScrollLeft();}}return M;},getPageY:function(M){var N=M.pageY;if(!N&&0!==N){N=M.clientY||0;if(this.isIE){N+=this._getScrollTop();}}return N;},getXY:function(M){return[this.getPageX(M),this.getPageY(M)];},getRelatedTarget:function(N){var M=N.relatedTarget;if(!M){if(N.type=="mouseout"){M=N.toElement;}else{if(N.type=="mouseover"){M=N.fromElement;}}}return this.resolveTextNode(M);},getTime:function(O){if(!O.time){var N=new Date().getTime();try{O.time=N;}catch(M){this.lastError=M;return N;}}return O.time;},stopEvent:function(M){this.stopPropagation(M);this.preventDefault(M);},stopPropagation:function(M){if(M.stopPropagation){M.stopPropagation();}else{M.cancelBubble=true;}},preventDefault:function(M){if(M.preventDefault){M.preventDefault();}else{M.returnValue=false;}},getEvent:function(O,M){var N=O||window.event;if(!N){var P=this.getEvent.caller;while(P){N=P.arguments[0];if(N&&Event==N.constructor){break;}P=P.caller;}}return N;},getCharCode:function(N){var M=N.keyCode||N.charCode||0;if(YAHOO.env.ua.webkit&&(M in D)){M=D[M];}return M;},_getCacheIndex:function(Q,R,P){for(var O=0,N=I.length;O<N;O=O+1){var M=I[O];if(M&&M[this.FN]==P&&M[this.EL]==Q&&M[this.TYPE]==R){return O;}}return -1;},generateId:function(M){var N=M.id;if(!N){N="yuievtautoid-"+A;++A;M.id=N;}return N;},_isValidCollection:function(N){try{return(N&&typeof N!=="string"&&N.length&&!N.tagName&&!N.alert&&typeof N[0]!=="undefined");}catch(M){return false;}},elCache:{},getEl:function(M){return(typeof M==="string")?document.getElementById(M):M;},clearCache:function(){},DOMReadyEvent:new YAHOO.util.CustomEvent("DOMReady",this),_load:function(N){if(!H){H=true;var M=YAHOO.util.Event;M._ready();M._tryPreloadAttach();}},_ready:function(N){var M=YAHOO.util.Event;if(!M.DOMReady){M.DOMReady=true;M.DOMReadyEvent.fire();M._simpleRemove(document,"DOMContentLoaded",M._ready);}},_tryPreloadAttach:function(){if(F.length===0){C=0;if(this._interval){clearInterval(this._interval);this._interval=null;}return;}if(this.locked){return;}if(this.isIE){if(!this.DOMReady){this.startInterval();return;}}this.locked=true;var S=!H;if(!S){S=(C>0&&F.length>0);}var R=[];var T=function(V,W){var U=V;if(W.overrideContext){if(W.overrideContext===true){U=W.obj;}else{U=W.overrideContext;}}W.fn.call(U,W.obj);};var N,M,Q,P,O=[];for(N=0,M=F.length;N<M;N=N+1){Q=F[N];if(Q){P=this.getEl(Q.id);if(P){if(Q.checkReady){if(H||P.nextSibling||!S){O.push(Q);F[N]=null;}}else{T(P,Q);F[N]=null;}}else{R.push(Q);}}}for(N=0,M=O.length;N<M;N=N+1){Q=O[N];T(this.getEl(Q.id),Q);}C--;if(S){for(N=F.length-1;N>-1;N--){Q=F[N];if(!Q||!Q.id){F.splice(N,1);}}this.startInterval();}else{if(this._interval){clearInterval(this._interval);this._interval=null;}}this.locked=false;},purgeElement:function(Q,R,T){var O=(YAHOO.lang.isString(Q))?this.getEl(Q):Q;var S=this.getListeners(O,T),P,M;if(S){for(P=S.length-1;P>-1;P--){var N=S[P];this.removeListener(O,N.type,N.fn);}}if(R&&O&&O.childNodes){for(P=0,M=O.childNodes.length;P<M;++P){this.purgeElement(O.childNodes[P],R,T);}}},getListeners:function(O,M){var R=[],N;if(!M){N=[I,J];}else{if(M==="unload"){N=[J];}else{N=[I];}}var T=(YAHOO.lang.isString(O))?this.getEl(O):O;for(var Q=0;Q<N.length;Q=Q+1){var V=N[Q];if(V){for(var S=0,U=V.length;S<U;++S){var P=V[S];if(P&&P[this.EL]===T&&(!M||M===P[this.TYPE])){R.push({type:P[this.TYPE],fn:P[this.FN],obj:P[this.OBJ],adjust:P[this.OVERRIDE],scope:P[this.ADJ_SCOPE],index:S});}}}}return(R.length)?R:null;},_unload:function(T){var N=YAHOO.util.Event,Q,P,O,S,R,U=J.slice(),M;for(Q=0,S=J.length;Q<S;++Q){O=U[Q];if(O){M=window;if(O[N.ADJ_SCOPE]){if(O[N.ADJ_SCOPE]===true){M=O[N.UNLOAD_OBJ];}else{M=O[N.ADJ_SCOPE];}}O[N.FN].call(M,N.getEvent(T,O[N.EL]),O[N.UNLOAD_OBJ]);U[Q]=null;}}O=null;M=null;J=null;if(I){for(P=I.length-1;P>-1;P--){O=I[P];if(O){N.removeListener(O[N.EL],O[N.TYPE],O[N.FN],P);}}O=null;}G=null;N._simpleRemove(window,"unload",N._unload);},_getScrollLeft:function(){return this._getScroll()[1];},_getScrollTop:function(){return this._getScroll()[0];},_getScroll:function(){var M=document.documentElement,N=document.body;if(M&&(M.scrollTop||M.scrollLeft)){return[M.scrollTop,M.scrollLeft];}else{if(N){return[N.scrollTop,N.scrollLeft];}else{return[0,0];}}},regCE:function(){},_simpleAdd:function(){if(window.addEventListener){return function(O,P,N,M){O.addEventListener(P,N,(M));};}else{if(window.attachEvent){return function(O,P,N,M){O.attachEvent("on"+P,N);};}else{return function(){};}}}(),_simpleRemove:function(){if(window.removeEventListener){return function(O,P,N,M){O.removeEventListener(P,N,(M));};}else{if(window.detachEvent){return function(N,O,M){N.detachEvent("on"+O,M);};}else{return function(){};}}}()};}();(function(){var EU=YAHOO.util.Event;EU.on=EU.addListener;EU.onFocus=EU.addFocusListener;EU.onBlur=EU.addBlurListener;
/* DOMReady: based on work by: Dean Edwards/John Resig/Matthias Miller */
if(EU.isIE){YAHOO.util.Event.onDOMReady(YAHOO.util.Event._tryPreloadAttach,YAHOO.util.Event,true);var n=document.createElement("p");EU._dri=setInterval(function(){try{n.doScroll("left");clearInterval(EU._dri);EU._dri=null;EU._ready();n=null;}catch(ex){}},EU.POLL_INTERVAL);}else{if(EU.webkit&&EU.webkit<525){EU._dri=setInterval(function(){var rs=document.readyState;if("loaded"==rs||"complete"==rs){clearInterval(EU._dri);EU._dri=null;EU._ready();}},EU.POLL_INTERVAL);}else{EU._simpleAdd(document,"DOMContentLoaded",EU._ready);}}EU._simpleAdd(window,"load",EU._load);EU._simpleAdd(window,"unload",EU._unload);EU._tryPreloadAttach();})();}YAHOO.util.EventProvider=function(){};YAHOO.util.EventProvider.prototype={__yui_events:null,__yui_subscribers:null,subscribe:function(A,C,F,E){this.__yui_events=this.__yui_events||{};var D=this.__yui_events[A];if(D){D.subscribe(C,F,E);
}else{this.__yui_subscribers=this.__yui_subscribers||{};var B=this.__yui_subscribers;if(!B[A]){B[A]=[];}B[A].push({fn:C,obj:F,overrideContext:E});}},unsubscribe:function(C,E,G){this.__yui_events=this.__yui_events||{};var A=this.__yui_events;if(C){var F=A[C];if(F){return F.unsubscribe(E,G);}}else{var B=true;for(var D in A){if(YAHOO.lang.hasOwnProperty(A,D)){B=B&&A[D].unsubscribe(E,G);}}return B;}return false;},unsubscribeAll:function(A){return this.unsubscribe(A);},createEvent:function(G,D){this.__yui_events=this.__yui_events||{};var A=D||{};var I=this.__yui_events;if(I[G]){}else{var H=A.scope||this;var E=(A.silent);var B=new YAHOO.util.CustomEvent(G,H,E,YAHOO.util.CustomEvent.FLAT);I[G]=B;if(A.onSubscribeCallback){B.subscribeEvent.subscribe(A.onSubscribeCallback);}this.__yui_subscribers=this.__yui_subscribers||{};var F=this.__yui_subscribers[G];if(F){for(var C=0;C<F.length;++C){B.subscribe(F[C].fn,F[C].obj,F[C].overrideContext);}}}return I[G];},fireEvent:function(E,D,A,C){this.__yui_events=this.__yui_events||{};var G=this.__yui_events[E];if(!G){return null;}var B=[];for(var F=1;F<arguments.length;++F){B.push(arguments[F]);}return G.fire.apply(G,B);},hasEvent:function(A){if(this.__yui_events){if(this.__yui_events[A]){return true;}}return false;}};(function(){var A=YAHOO.util.Event,C=YAHOO.lang;YAHOO.util.KeyListener=function(D,I,E,F){if(!D){}else{if(!I){}else{if(!E){}}}if(!F){F=YAHOO.util.KeyListener.KEYDOWN;}var G=new YAHOO.util.CustomEvent("keyPressed");this.enabledEvent=new YAHOO.util.CustomEvent("enabled");this.disabledEvent=new YAHOO.util.CustomEvent("disabled");if(C.isString(D)){D=document.getElementById(D);}if(C.isFunction(E)){G.subscribe(E);}else{G.subscribe(E.fn,E.scope,E.correctScope);}function H(O,N){if(!I.shift){I.shift=false;}if(!I.alt){I.alt=false;}if(!I.ctrl){I.ctrl=false;}if(O.shiftKey==I.shift&&O.altKey==I.alt&&O.ctrlKey==I.ctrl){var J,M=I.keys,L;if(YAHOO.lang.isArray(M)){for(var K=0;K<M.length;K++){J=M[K];L=A.getCharCode(O);if(J==L){G.fire(L,O);break;}}}else{L=A.getCharCode(O);if(M==L){G.fire(L,O);}}}}this.enable=function(){if(!this.enabled){A.on(D,F,H);this.enabledEvent.fire(I);}this.enabled=true;};this.disable=function(){if(this.enabled){A.removeListener(D,F,H);this.disabledEvent.fire(I);}this.enabled=false;};this.toString=function(){return"KeyListener ["+I.keys+"] "+D.tagName+(D.id?"["+D.id+"]":"");};};var B=YAHOO.util.KeyListener;B.KEYDOWN="keydown";B.KEYUP="keyup";B.KEY={ALT:18,BACK_SPACE:8,CAPS_LOCK:20,CONTROL:17,DELETE:46,DOWN:40,END:35,ENTER:13,ESCAPE:27,HOME:36,LEFT:37,META:224,NUM_LOCK:144,PAGE_DOWN:34,PAGE_UP:33,PAUSE:19,PRINTSCREEN:44,RIGHT:39,SCROLL_LOCK:145,SHIFT:16,SPACE:32,TAB:9,UP:38};})();YAHOO.register("event",YAHOO.util.Event,{version:"2.7.0",build:"1796"});YAHOO.register("yahoo-dom-event", YAHOO, {version: "2.7.0", build: "1796"});
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
/**
 * Provides methods to parse JSON strings and convert objects to JSON strings.
 * @module json
 * @class JSON
 * @static
 */
YAHOO.lang.JSON = (function () {

var l = YAHOO.lang,

    /**
     * Replace certain Unicode characters that JavaScript may handle incorrectly
     * during eval--either by deleting them or treating them as line
     * endings--with escape sequences.
     * IMPORTANT NOTE: This regex will be used to modify the input if a match is
     * found.
     * @property _UNICODE_EXCEPTIONS
     * @type {RegExp}
     * @private
     */
    _UNICODE_EXCEPTIONS = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,

    /**
     * First step in the validation.  Regex used to replace all escape
     * sequences (i.e. "\\", etc) with '@' characters (a non-JSON character).
     * @property _ESCAPES
     * @type {RegExp}
     * @static
     * @private
     */
    _ESCAPES = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,

    /**
     * Second step in the validation.  Regex used to replace all simple
     * values with ']' characters.
     * @property _VALUES
     * @type {RegExp}
     * @static
     * @private
     */
    _VALUES  = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,

    /**
     * Third step in the validation.  Regex used to remove all open square
     * brackets following a colon, comma, or at the beginning of the string.
     * @property _BRACKETS
     * @type {RegExp}
     * @static
     * @private
     */
    _BRACKETS = /(?:^|:|,)(?:\s*\[)+/g,

    /**
     * Final step in the validation.  Regex used to test the string left after
     * all previous replacements for invalid characters.
     * @property _INVALID
     * @type {RegExp}
     * @static
     * @private
     */
    _INVALID  = /^[\],:{}\s]*$/,

    /**
     * Regex used to replace special characters in strings for JSON
     * stringification.
     * @property _SPECIAL_CHARS
     * @type {RegExp}
     * @static
     * @private
     */
    _SPECIAL_CHARS = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,

    /**
     * Character substitution map for common escapes and special characters.
     * @property _CHARS
     * @type {Object}
     * @static
     * @private
     */
    _CHARS = {
        '\b': '\\b',
        '\t': '\\t',
        '\n': '\\n',
        '\f': '\\f',
        '\r': '\\r',
        '"' : '\\"',
        '\\': '\\\\'
    };

/**
 * Traverses nested objects, applying a filter or reviver function to
 * each value.  The value returned from the function will replace the
 * original value in the key:value pair.  If the value returned is
 * undefined, the key will be omitted from the returned object.
 * @method _revive
 * @param data {MIXED} Any JavaScript data
 * @param reviver {Function} filter or mutation function
 * @return {MIXED} The results of the filtered/mutated data structure
 * @private
 */
function _revive(data, reviver) {
    var walk = function (o,key) {
        var k,v,value = o[key];
        if (value && typeof value === 'object') {
            for (k in value) {
                if (l.hasOwnProperty(value,k)) {
                    v = walk(value, k);
                    if (v === undefined) {
                        delete value[k];
                    } else {
                        value[k] = v;
                    }
                }
            }
        }
        return reviver.call(o,key,value);
    };

    return typeof reviver === 'function' ? walk({'':data},'') : data;
}

/**
 * Escapes a special character to a safe Unicode representation
 * @method _char
 * @param c {String} single character to escape
 * @return {String} safe Unicode escape
 */
function _char(c) {
    if (!_CHARS[c]) {
        _CHARS[c] =  '\\u'+('0000'+(+(c.charCodeAt(0))).toString(16)).slice(-4);
    }
    return _CHARS[c];
}

/**
 * Replace certain Unicode characters that may be handled incorrectly by
 * some browser implementations.
 * @method _prepare
 * @param s {String} parse input
 * @return {String} sanitized JSON string ready to be validated/parsed
 * @private
 */
function _prepare(s) {
    return s.replace(_UNICODE_EXCEPTIONS, _char);
}

/**
 * Four step determination whether a string is valid JSON.  In three steps,
 * escape sequences, safe values, and properly placed open square brackets
 * are replaced with placeholders or removed.  Then in the final step, the
 * result of all these replacements is checked for invalid characters.
 * @method _isValid
 * @param str {String} JSON string to be tested
 * @return {boolean} is the string safe for eval?
 * @static
 */
function _isValid(str) {
    return l.isString(str) &&
            _INVALID.test(str.
            replace(_ESCAPES,'@').
            replace(_VALUES,']').
            replace(_BRACKETS,''));
}

/**
 * Enclose escaped strings in quotes
 * @method _string
 * @param s {String} string to wrap
 * @return {String} '"'+s+'"' after s has had special characters escaped
 * @private
 */
function _string(s) {
    return '"' + s.replace(_SPECIAL_CHARS, _char) + '"';
}

/**
 * Worker function used by public stringify.
 * @method _stringify
 * @param h {Object} object holding the key
 * @param key {String} String key in object h to serialize
 * @param depth {Number} depth to serialize
 * @param w {Array|Function} array of whitelisted keys OR replacer function
 * @param pstack {Array} used to protect against recursion
 * @return {String} serialized version of o
 */
function _stringify(h,key,d,w,pstack) {
    var o = typeof w === 'function' ? w.call(h,key,h[key]) : h[key],
        i,len,j, // array iteration
        k,v,     // object iteration
        isArray, // forking in typeof 'object'
        a;       // composition array for performance over string concat

    if (o instanceof Date) {
        o = l.JSON.dateToString(o);
    } else if (o instanceof String || o instanceof Boolean || o instanceof Number) {
        o = o.valueOf();
    }

    switch (typeof o) {
        case 'string' : return _string(o);
        case 'number' : return isFinite(o) ? String(o) : 'null';
        case 'boolean': return String(o);
        case 'object' :
            // null
            if (o === null) {
                return 'null';
            }

            // Check for cyclical references
            for (i = pstack.length - 1; i >= 0; --i) {
                if (pstack[i] === o) {
                    return 'null';
                }
            }

            // Add the object to the processing stack
            pstack[pstack.length] = o;

            a = [];
            isArray = l.isArray(o);

            // Only recurse if we're above depth config
            if (d > 0) {
                // Array
                if (isArray) {
                    for (i = o.length - 1; i >= 0; --i) {
                        a[i] = _stringify(o,i,d-1,w,pstack) || 'null';
                    }

                // Object
                } else {
                    j = 0;
                    // Use whitelist keys if provided as an array
                    if (l.isArray(w)) {
                        for (i = 0, len = w.length; i < len; ++i) {
                            k = w[i];
                            v = _stringify(o,k,d-1,w,pstack);
                            if (v) {
                                a[j++] = _string(k) + ':' + v;
                            }
                        }
                    } else {
                        for (k in o) {
                            if (typeof k === 'string' && l.hasOwnProperty(o,k)) {
                                v = _stringify(o,k,d-1,w,pstack);
                                if (v) {
                                    a[j++] = _string(k) + ':' + v;
                                }
                            }
                        }
                    }

                    // sort object keys for easier readability
                    a.sort();
                }
            }

            // remove the object from the stack
            pstack.pop();

            return isArray ? '['+a.join(',')+']' : '{'+a.join(',')+'}';
    }

    return undefined; // invalid input
}

// Return the public API
return {
    /**
     * Four step determination whether a string is valid JSON.  In three steps,
     * escape sequences, safe values, and properly placed open square brackets
     * are replaced with placeholders or removed.  Then in the final step, the
     * result of all these replacements is checked for invalid characters.
     * @method isValid
     * @param str {String} JSON string to be tested
     * @return {boolean} is the string safe for eval?
     * @static
     */
    isValid : function (s) {
        return _isValid(_prepare(s));
    },

    /**
     * Parse a JSON string, returning the native JavaScript representation.
     * Only minor modifications from http://www.json.org/json2.js.
     * @param s {string} JSON string data
     * @param reviver {function} (optional) function(k,v) passed each key:value
     *          pair of object literals, allowing pruning or altering values
     * @return {MIXED} the native JavaScript representation of the JSON string
     * @throws SyntaxError
     * @method parse
     * @static
     */
    parse : function (s,reviver) {
        // sanitize
        s = _prepare(s);

        // Ensure valid JSON
        if (_isValid(s)) {
            // Eval the text into a JavaScript data structure, apply the
            // reviver function if provided, and return
            return _revive( eval('(' + s + ')'), reviver );
        }

        // The text is not valid JSON
        throw new SyntaxError('parseJSON');
    },

    /**
     * Converts an arbitrary value to a JSON string representation.
     * Cyclical object or array references are replaced with null.
     * If a whitelist is provided, only matching object keys will be included.
     * If a depth limit is provided, objects and arrays at that depth will
     * be stringified as empty.
     * @method stringify
     * @param o {MIXED} any arbitrary object to convert to JSON string
     * @param w {Array|Function} (optional) whitelist of acceptable object keys to include OR a function(value,key) to alter values before serialization
     * @param d {number} (optional) depth limit to recurse objects/arrays (practical minimum 1)
     * @return {string} JSON string representation of the input
     * @static
     */
    stringify : function (o,w,d) {
        if (o !== undefined) {
            // Ensure whitelist keys are unique (bug 2110391)
            if (l.isArray(w)) {
                w = (function (a) {
                    var uniq=[],map={},v,i,j,len;
                    for (i=0,j=0,len=a.length; i<len; ++i) {
                        v = a[i];
                        if (typeof v === 'string' && map[v] === undefined) {
                            uniq[(map[v] = j++)] = v;
                        }
                    }
                    return uniq;
                })(w);
            }

            // Default depth to POSITIVE_INFINITY
            d = d >= 0 ? d : 1/0;

            // process the input
            return _stringify({'':o},'',d,w,[]);
        }

        return undefined;
    },

    /**
     * Serializes a Date instance as a UTC date string.  Used internally by
     * stringify.  Override this method if you need Dates serialized in a
     * different format.
     * @method dateToString
     * @param d {Date} The Date to serialize
     * @return {String} stringified Date in UTC format YYYY-MM-DDTHH:mm:SSZ
     * @static
     */
    dateToString : function (d) {
        function _zeroPad(v) {
            return v < 10 ? '0' + v : v;
        }

        return d.getUTCFullYear()         + '-' +
            _zeroPad(d.getUTCMonth() + 1) + '-' +
            _zeroPad(d.getUTCDate())      + 'T' +
            _zeroPad(d.getUTCHours())     + ':' +
            _zeroPad(d.getUTCMinutes())   + ':' +
            _zeroPad(d.getUTCSeconds())   + 'Z';
    },

    /**
     * Reconstitute Date instances from the default JSON UTC serialization.
     * Reference this from a reviver function to rebuild Dates during the
     * parse operation.
     * @method stringToDate
     * @param str {String} String serialization of a Date
     * @return {Date}
     */
    stringToDate : function (str) {
        if (/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})Z$/.test(str)) {
            var d = new Date();
            d.setUTCFullYear(RegExp.$1, (RegExp.$2|0)-1, RegExp.$3);
            d.setUTCHours(RegExp.$4, RegExp.$5, RegExp.$6);
            return d;
        }
        return str;
    }
};

})();
YAHOO.register("json", YAHOO.lang.JSON, {version: "2.7.0", build: "1796"});
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
/**
 * Provides Attribute configurations.
 * @namespace YAHOO.util
 * @class Attribute
 * @constructor
 * @param hash {Object} The intial Attribute.
 * @param {YAHOO.util.AttributeProvider} The owner of the Attribute instance.
 */

YAHOO.util.Attribute = function(hash, owner) {
    if (owner) { 
        this.owner = owner;
        this.configure(hash, true);
    }
};

YAHOO.util.Attribute.prototype = {
    /**
     * The name of the attribute.
     * @property name
     * @type String
     */
    name: undefined,
    
    /**
     * The value of the attribute.
     * @property value
     * @type String
     */
    value: null,
    
    /**
     * The owner of the attribute.
     * @property owner
     * @type YAHOO.util.AttributeProvider
     */
    owner: null,
    
    /**
     * Whether or not the attribute is read only.
     * @property readOnly
     * @type Boolean
     */
    readOnly: false,
    
    /**
     * Whether or not the attribute can only be written once.
     * @property writeOnce
     * @type Boolean
     */
    writeOnce: false,

    /**
     * The attribute's initial configuration.
     * @private
     * @property _initialConfig
     * @type Object
     */
    _initialConfig: null,
    
    /**
     * Whether or not the attribute's value has been set.
     * @private
     * @property _written
     * @type Boolean
     */
    _written: false,
    
    /**
     * A function to call when setting the attribute's value.
     * The method receives the new value as the first arg and the attribute name as the 2nd
     * @property method
     * @type Function
     */
    method: null,
    
    /**
     * The function to use when setting the attribute's value.
     * The setter receives the new value as the first arg and the attribute name as the 2nd
     * The return value of the setter replaces the value passed to set(). 
     * @property setter
     * @type Function
     */
    setter: null,
    
    /**
     * The function to use when getting the attribute's value.
     * The getter receives the new value as the first arg and the attribute name as the 2nd
     * The return value of the getter will be used as the return from get().
     * @property getter
     * @type Function
     */
    getter: null,

    /**
     * The validator to use when setting the attribute's value.
     * @property validator
     * @type Function
     * @return Boolean
     */
    validator: null,
    
    /**
     * Retrieves the current value of the attribute.
     * @method getValue
     * @return {any} The current value of the attribute.
     */
    getValue: function() {
        var val = this.value;

        if (this.getter) {
            val = this.getter.call(this.owner, this.name);
        }

        return val;
    },
    
    /**
     * Sets the value of the attribute and fires beforeChange and change events.
     * @method setValue
     * @param {Any} value The value to apply to the attribute.
     * @param {Boolean} silent If true the change events will not be fired.
     * @return {Boolean} Whether or not the value was set.
     */
    setValue: function(value, silent) {
        var beforeRetVal,
            owner = this.owner,
            name = this.name;
        
        var event = {
            type: name, 
            prevValue: this.getValue(),
            newValue: value
        };
        
        if (this.readOnly || ( this.writeOnce && this._written) ) {
            return false; // write not allowed
        }
        
        if (this.validator && !this.validator.call(owner, value) ) {
            return false; // invalid value
        }

        if (!silent) {
            beforeRetVal = owner.fireBeforeChangeEvent(event);
            if (beforeRetVal === false) {
                return false;
            }
        }

        if (this.setter) {
            value = this.setter.call(owner, value, this.name);
            if (value === undefined) {
            }
        }
        
        if (this.method) {
            this.method.call(owner, value, this.name);
        }
        
        this.value = value; // TODO: set before calling setter/method?
        this._written = true;
        
        event.type = name;
        
        if (!silent) {
            this.owner.fireChangeEvent(event);
        }
        
        return true;
    },
    
    /**
     * Allows for configuring the Attribute's properties.
     * @method configure
     * @param {Object} map A key-value map of Attribute properties.
     * @param {Boolean} init Whether or not this should become the initial config.
     */
    configure: function(map, init) {
        map = map || {};

        if (init) {
            this._written = false; // reset writeOnce
        }

        this._initialConfig = this._initialConfig || {};
        
        for (var key in map) {
            if ( map.hasOwnProperty(key) ) {
                this[key] = map[key];
                if (init) {
                    this._initialConfig[key] = map[key];
                }
            }
        }
    },
    
    /**
     * Resets the value to the initial config value.
     * @method resetValue
     * @return {Boolean} Whether or not the value was set.
     */
    resetValue: function() {
        return this.setValue(this._initialConfig.value);
    },
    
    /**
     * Resets the attribute config to the initial config state.
     * @method resetConfig
     */
    resetConfig: function() {
        this.configure(this._initialConfig, true);
    },
    
    /**
     * Resets the value to the current value.
     * Useful when values may have gotten out of sync with actual properties.
     * @method refresh
     * @return {Boolean} Whether or not the value was set.
     */
    refresh: function(silent) {
        this.setValue(this.value, silent);
    }
};

(function() {
    var Lang = YAHOO.util.Lang;

    /*
    Copyright (c) 2006, Yahoo! Inc. All rights reserved.
    Code licensed under the BSD License:
    http://developer.yahoo.net/yui/license.txt
    */
    
    /**
     * Provides and manages YAHOO.util.Attribute instances
     * @namespace YAHOO.util
     * @class AttributeProvider
     * @uses YAHOO.util.EventProvider
     */
    YAHOO.util.AttributeProvider = function() {};

    YAHOO.util.AttributeProvider.prototype = {
        
        /**
         * A key-value map of Attribute configurations
         * @property _configs
         * @protected (may be used by subclasses and augmentors)
         * @private
         * @type {Object}
         */
        _configs: null,
        /**
         * Returns the current value of the attribute.
         * @method get
         * @param {String} key The attribute whose value will be returned.
         * @return {Any} The current value of the attribute.
         */
        get: function(key){
            this._configs = this._configs || {};
            var config = this._configs[key];
            
            if (!config || !this._configs.hasOwnProperty(key)) {
                return null;
            }
            
            return config.getValue();
        },
        
        /**
         * Sets the value of a config.
         * @method set
         * @param {String} key The name of the attribute
         * @param {Any} value The value to apply to the attribute
         * @param {Boolean} silent Whether or not to suppress change events
         * @return {Boolean} Whether or not the value was set.
         */
        set: function(key, value, silent){
            this._configs = this._configs || {};
            var config = this._configs[key];
            
            if (!config) {
                return false;
            }
            
            return config.setValue(value, silent);
        },
    
        /**
         * Returns an array of attribute names.
         * @method getAttributeKeys
         * @return {Array} An array of attribute names.
         */
        getAttributeKeys: function(){
            this._configs = this._configs;
            var keys = [], key;

            for (key in this._configs) {
                if ( Lang.hasOwnProperty(this._configs, key) && 
                        !Lang.isUndefined(this._configs[key]) ) {
                    keys[keys.length] = key;
                }
            }
            
            return keys;
        },
        
        /**
         * Sets multiple attribute values.
         * @method setAttributes
         * @param {Object} map  A key-value map of attributes
         * @param {Boolean} silent Whether or not to suppress change events
         */
        setAttributes: function(map, silent){
            for (var key in map) {
                if ( Lang.hasOwnProperty(map, key) ) {
                    this.set(key, map[key], silent);
                }
            }
        },
    
        /**
         * Resets the specified attribute's value to its initial value.
         * @method resetValue
         * @param {String} key The name of the attribute
         * @param {Boolean} silent Whether or not to suppress change events
         * @return {Boolean} Whether or not the value was set
         */
        resetValue: function(key, silent){
            this._configs = this._configs || {};
            if (this._configs[key]) {
                this.set(key, this._configs[key]._initialConfig.value, silent);
                return true;
            }
            return false;
        },
    
        /**
         * Sets the attribute's value to its current value.
         * @method refresh
         * @param {String | Array} key The attribute(s) to refresh
         * @param {Boolean} silent Whether or not to suppress change events
         */
        refresh: function(key, silent) {
            this._configs = this._configs || {};
            var configs = this._configs;
            
            key = ( ( Lang.isString(key) ) ? [key] : key ) || 
                    this.getAttributeKeys();
            
            for (var i = 0, len = key.length; i < len; ++i) { 
                if (configs.hasOwnProperty(key[i])) {
                    this._configs[key[i]].refresh(silent);
                }
            }
        },
    
        /**
         * Adds an Attribute to the AttributeProvider instance. 
         * @method register
         * @param {String} key The attribute's name
         * @param {Object} map A key-value map containing the
         * attribute's properties.
         * @deprecated Use setAttributeConfig
         */
        register: function(key, map) {
            this.setAttributeConfig(key, map);
        },
        
        
        /**
         * Returns the attribute's properties.
         * @method getAttributeConfig
         * @param {String} key The attribute's name
         * @private
         * @return {object} A key-value map containing all of the
         * attribute's properties.
         */
        getAttributeConfig: function(key) {
            this._configs = this._configs || {};
            var config = this._configs[key] || {};
            var map = {}; // returning a copy to prevent overrides
            
            for (key in config) {
                if ( Lang.hasOwnProperty(config, key) ) {
                    map[key] = config[key];
                }
            }
    
            return map;
        },
        
        /**
         * Sets or updates an Attribute instance's properties. 
         * @method setAttributeConfig
         * @param {String} key The attribute's name.
         * @param {Object} map A key-value map of attribute properties
         * @param {Boolean} init Whether or not this should become the intial config.
         */
        setAttributeConfig: function(key, map, init) {
            this._configs = this._configs || {};
            map = map || {};
            if (!this._configs[key]) {
                map.name = key;
                this._configs[key] = this.createAttribute(map);
            } else {
                this._configs[key].configure(map, init);
            }
        },
        
        /**
         * Sets or updates an Attribute instance's properties. 
         * @method configureAttribute
         * @param {String} key The attribute's name.
         * @param {Object} map A key-value map of attribute properties
         * @param {Boolean} init Whether or not this should become the intial config.
         * @deprecated Use setAttributeConfig
         */
        configureAttribute: function(key, map, init) {
            this.setAttributeConfig(key, map, init);
        },
        
        /**
         * Resets an attribute to its intial configuration. 
         * @method resetAttributeConfig
         * @param {String} key The attribute's name.
         * @private
         */
        resetAttributeConfig: function(key){
            this._configs = this._configs || {};
            this._configs[key].resetConfig();
        },
        
        // wrapper for EventProvider.subscribe
        // to create events on the fly
        subscribe: function(type, callback) {
            this._events = this._events || {};

            if ( !(type in this._events) ) {
                this._events[type] = this.createEvent(type);
            }

            YAHOO.util.EventProvider.prototype.subscribe.apply(this, arguments);
        },

        on: function() {
            this.subscribe.apply(this, arguments);
        },

        addListener: function() {
            this.subscribe.apply(this, arguments);
        },

        /**
         * Fires the attribute's beforeChange event. 
         * @method fireBeforeChangeEvent
         * @param {String} key The attribute's name.
         * @param {Obj} e The event object to pass to handlers.
         */
        fireBeforeChangeEvent: function(e) {
            var type = 'before';
            type += e.type.charAt(0).toUpperCase() + e.type.substr(1) + 'Change';
            e.type = type;
            return this.fireEvent(e.type, e);
        },
        
        /**
         * Fires the attribute's change event. 
         * @method fireChangeEvent
         * @param {String} key The attribute's name.
         * @param {Obj} e The event object to pass to the handlers.
         */
        fireChangeEvent: function(e) {
            e.type += 'Change';
            return this.fireEvent(e.type, e);
        },

        createAttribute: function(map) {
            return new YAHOO.util.Attribute(map, this);
        }
    };
    
    YAHOO.augment(YAHOO.util.AttributeProvider, YAHOO.util.EventProvider);
})();

(function() {
// internal shorthand
var Dom = YAHOO.util.Dom,
    AttributeProvider = YAHOO.util.AttributeProvider;

/**
 * Element provides an wrapper object to simplify adding
 * event listeners, using dom methods, and managing attributes. 
 * @module element
 * @namespace YAHOO.util
 * @requires yahoo, dom, event
 */

/**
 * Element provides an wrapper object to simplify adding
 * event listeners, using dom methods, and managing attributes. 
 * @class Element
 * @uses YAHOO.util.AttributeProvider
 * @constructor
 * @param el {HTMLElement | String} The html element that 
 * represents the Element.
 * @param {Object} map A key-value map of initial config names and values
 */
var Element = function(el, map) {
    this.init.apply(this, arguments);
};

Element.DOM_EVENTS = {
    'click': true,
    'dblclick': true,
    'keydown': true,
    'keypress': true,
    'keyup': true,
    'mousedown': true,
    'mousemove': true,
    'mouseout': true, 
    'mouseover': true, 
    'mouseup': true,
    'focus': true,
    'blur': true,
    'submit': true,
    'change': true
};

Element.prototype = {
    /**
     * Dom events supported by the Element instance.
     * @property DOM_EVENTS
     * @type Object
     */
    DOM_EVENTS: null,

    DEFAULT_HTML_SETTER: function(value, key) {
        var el = this.get('element');
        
        if (el) {
            el[key] = value;
        }
    },

    DEFAULT_HTML_GETTER: function(key) {
        var el = this.get('element'),
            val;

        if (el) {
            val = el[key];
        }

        return val;
    },

    /**
     * Wrapper for HTMLElement method.
     * @method appendChild
     * @param {YAHOO.util.Element || HTMLElement} child The element to append. 
     * @return {HTMLElement} The appended DOM element. 
     */
    appendChild: function(child) {
        child = child.get ? child.get('element') : child;
        return this.get('element').appendChild(child);
    },
    
    /**
     * Wrapper for HTMLElement method.
     * @method getElementsByTagName
     * @param {String} tag The tagName to collect
     * @return {HTMLCollection} A collection of DOM elements. 
     */
    getElementsByTagName: function(tag) {
        return this.get('element').getElementsByTagName(tag);
    },
    
    /**
     * Wrapper for HTMLElement method.
     * @method hasChildNodes
     * @return {Boolean} Whether or not the element has childNodes
     */
    hasChildNodes: function() {
        return this.get('element').hasChildNodes();
    },
    
    /**
     * Wrapper for HTMLElement method.
     * @method insertBefore
     * @param {HTMLElement} element The HTMLElement to insert
     * @param {HTMLElement} before The HTMLElement to insert
     * the element before.
     * @return {HTMLElement} The inserted DOM element. 
     */
    insertBefore: function(element, before) {
        element = element.get ? element.get('element') : element;
        before = (before && before.get) ? before.get('element') : before;
        
        return this.get('element').insertBefore(element, before);
    },
    
    /**
     * Wrapper for HTMLElement method.
     * @method removeChild
     * @param {HTMLElement} child The HTMLElement to remove
     * @return {HTMLElement} The removed DOM element. 
     */
    removeChild: function(child) {
        child = child.get ? child.get('element') : child;
        return this.get('element').removeChild(child);
    },
    
    /**
     * Wrapper for HTMLElement method.
     * @method replaceChild
     * @param {HTMLElement} newNode The HTMLElement to insert
     * @param {HTMLElement} oldNode The HTMLElement to replace
     * @return {HTMLElement} The replaced DOM element. 
     */
    replaceChild: function(newNode, oldNode) {
        newNode = newNode.get ? newNode.get('element') : newNode;
        oldNode = oldNode.get ? oldNode.get('element') : oldNode;
        return this.get('element').replaceChild(newNode, oldNode);
    },

    
    /**
     * Registers Element specific attributes.
     * @method initAttributes
     * @param {Object} map A key-value map of initial attribute configs
     */
    initAttributes: function(map) {
    },

    /**
     * Adds a listener for the given event.  These may be DOM or 
     * customEvent listeners.  Any event that is fired via fireEvent
     * can be listened for.  All handlers receive an event object. 
     * @method addListener
     * @param {String} type The name of the event to listen for
     * @param {Function} fn The handler to call when the event fires
     * @param {Any} obj A variable to pass to the handler
     * @param {Object} scope The object to use for the scope of the handler 
     */
    addListener: function(type, fn, obj, scope) {
        var el = this.get('element') || this.get('id');
        scope = scope || this;
        
        var self = this; 
        if (!this._events[type]) { // create on the fly
            if (el && this.DOM_EVENTS[type]) {
                YAHOO.util.Event.addListener(el, type, function(e) {
                    if (e.srcElement && !e.target) { // supplement IE with target
                        e.target = e.srcElement;
                    }
                    self.fireEvent(type, e);
                }, obj, scope);
            }
            this.createEvent(type, this);
        }
        
        return YAHOO.util.EventProvider.prototype.subscribe.apply(this, arguments); // notify via customEvent
    },
    
    
    /**
     * Alias for addListener
     * @method on
     * @param {String} type The name of the event to listen for
     * @param {Function} fn The function call when the event fires
     * @param {Any} obj A variable to pass to the handler
     * @param {Object} scope The object to use for the scope of the handler 
     */
    on: function() {
        return this.addListener.apply(this, arguments);
    },
    
    /**
     * Alias for addListener
     * @method subscribe
     * @param {String} type The name of the event to listen for
     * @param {Function} fn The function call when the event fires
     * @param {Any} obj A variable to pass to the handler
     * @param {Object} scope The object to use for the scope of the handler 
     */
    subscribe: function() {
        return this.addListener.apply(this, arguments);
    },
    
    /**
     * Remove an event listener
     * @method removeListener
     * @param {String} type The name of the event to listen for
     * @param {Function} fn The function call when the event fires
     */
    removeListener: function(type, fn) {
        return this.unsubscribe.apply(this, arguments);
    },
    
    /**
     * Wrapper for Dom method.
     * @method addClass
     * @param {String} className The className to add
     */
    addClass: function(className) {
        Dom.addClass(this.get('element'), className);
    },
    
    /**
     * Wrapper for Dom method.
     * @method getElementsByClassName
     * @param {String} className The className to collect
     * @param {String} tag (optional) The tag to use in
     * conjunction with class name
     * @return {Array} Array of HTMLElements
     */
    getElementsByClassName: function(className, tag) {
        return Dom.getElementsByClassName(className, tag,
                this.get('element') );
    },
    
    /**
     * Wrapper for Dom method.
     * @method hasClass
     * @param {String} className The className to add
     * @return {Boolean} Whether or not the element has the class name
     */
    hasClass: function(className) {
        return Dom.hasClass(this.get('element'), className); 
    },
    
    /**
     * Wrapper for Dom method.
     * @method removeClass
     * @param {String} className The className to remove
     */
    removeClass: function(className) {
        return Dom.removeClass(this.get('element'), className);
    },
    
    /**
     * Wrapper for Dom method.
     * @method replaceClass
     * @param {String} oldClassName The className to replace
     * @param {String} newClassName The className to add
     */
    replaceClass: function(oldClassName, newClassName) {
        return Dom.replaceClass(this.get('element'), 
                oldClassName, newClassName);
    },
    
    /**
     * Wrapper for Dom method.
     * @method setStyle
     * @param {String} property The style property to set
     * @param {String} value The value to apply to the style property
     */
    setStyle: function(property, value) {
        return Dom.setStyle(this.get('element'),  property, value); // TODO: always queuing?
    },
    
    /**
     * Wrapper for Dom method.
     * @method getStyle
     * @param {String} property The style property to retrieve
     * @return {String} The current value of the property
     */
    getStyle: function(property) {
        return Dom.getStyle(this.get('element'),  property);
    },
    
    /**
     * Apply any queued set calls.
     * @method fireQueue
     */
    fireQueue: function() {
        var queue = this._queue;
        for (var i = 0, len = queue.length; i < len; ++i) {
            this[queue[i][0]].apply(this, queue[i][1]);
        }
    },
    
    /**
     * Appends the HTMLElement into either the supplied parentNode.
     * @method appendTo
     * @param {HTMLElement | Element} parentNode The node to append to
     * @param {HTMLElement | Element} before An optional node to insert before
     * @return {HTMLElement} The appended DOM element. 
     */
    appendTo: function(parent, before) {
        parent = (parent.get) ?  parent.get('element') : Dom.get(parent);
        
        this.fireEvent('beforeAppendTo', {
            type: 'beforeAppendTo',
            target: parent
        });
        
        
        before = (before && before.get) ? 
                before.get('element') : Dom.get(before);
        var element = this.get('element');
        
        if (!element) {
            return false;
        }
        
        if (!parent) {
            return false;
        }
        
        if (element.parent != parent) {
            if (before) {
                parent.insertBefore(element, before);
            } else {
                parent.appendChild(element);
            }
        }
        
        
        this.fireEvent('appendTo', {
            type: 'appendTo',
            target: parent
        });

        return element;
    },
    
    get: function(key) {
        var configs = this._configs || {},
            el = configs.element; // avoid loop due to 'element'

        if (el && !configs[key] && !YAHOO.lang.isUndefined(el.value[key]) ) {
            this._setHTMLAttrConfig(key);
        }

        return AttributeProvider.prototype.get.call(this, key);
    },

    setAttributes: function(map, silent) {
        // set based on configOrder
        var done = {},
            configOrder = this._configOrder;

        // set based on configOrder
        for (var i = 0, len = configOrder.length; i < len; ++i) {
            if (map[configOrder[i]] !== undefined) {
                done[configOrder[i]] = true;
                this.set(configOrder[i], map[configOrder[i]], silent);
            }
        }

        // unconfigured (e.g. Dom attributes)
        for (var att in map) {
            if (map.hasOwnProperty(att) && !done[att]) {
                this.set(att, map[att], silent);
            }
        }
    },

    set: function(key, value, silent) {
        var el = this.get('element');
        if (!el) {
            this._queue[this._queue.length] = ['set', arguments];
            if (this._configs[key]) {
                this._configs[key].value = value; // so "get" works while queueing
            
            }
            return;
        }
        
        // set it on the element if not configured and is an HTML attribute
        if ( !this._configs[key] && !YAHOO.lang.isUndefined(el[key]) ) {
            this._setHTMLAttrConfig(key);
        }

        return AttributeProvider.prototype.set.apply(this, arguments);
    },
    
    setAttributeConfig: function(key, map, init) {
        this._configOrder.push(key);
        AttributeProvider.prototype.setAttributeConfig.apply(this, arguments);
    },

    createEvent: function(type, scope) {
        this._events[type] = true;
        return AttributeProvider.prototype.createEvent.apply(this, arguments);
    },
    
    init: function(el, attr) {
        this._initElement(el, attr); 
    },

    destroy: function() {
        var el = this.get('element');
        YAHOO.util.Event.purgeElement(el, true); // purge DOM listeners recursively
        this.unsubscribeAll(); // unsubscribe all custom events

        if (el && el.parentNode) {
            el.parentNode.removeChild(el); // pull from the DOM
        }

        // revert initial configs
        this._queue = [];
        this._events = {};
        this._configs = {};
        this._configOrder = []; 
    },

    _initElement: function(el, attr) {
        this._queue = this._queue || [];
        this._events = this._events || {};
        this._configs = this._configs || {};
        this._configOrder = []; 
        attr = attr || {};
        attr.element = attr.element || el || null;

        var isReady = false;  // to determine when to init HTMLElement and content

        var DOM_EVENTS = Element.DOM_EVENTS;
        this.DOM_EVENTS = this.DOM_EVENTS || {};

        for (var event in DOM_EVENTS) {
            if (DOM_EVENTS.hasOwnProperty(event)) {
                this.DOM_EVENTS[event] = DOM_EVENTS[event];
            }
        }

        if (typeof attr.element === 'string') { // register ID for get() access
            this._setHTMLAttrConfig('id', { value: attr.element });
        }

        if (Dom.get(attr.element)) {
            isReady = true;
            this._initHTMLElement(attr);
            this._initContent(attr);
        }

        YAHOO.util.Event.onAvailable(attr.element, function() {
            if (!isReady) { // otherwise already done
                this._initHTMLElement(attr);
            }

            this.fireEvent('available', { type: 'available', target: Dom.get(attr.element) });  
        }, this, true);
        
        YAHOO.util.Event.onContentReady(attr.element, function() {
            if (!isReady) { // otherwise already done
                this._initContent(attr);
            }
            this.fireEvent('contentReady', { type: 'contentReady', target: Dom.get(attr.element) });  
        }, this, true);
    },

    _initHTMLElement: function(attr) {
        /**
         * The HTMLElement the Element instance refers to.
         * @attribute element
         * @type HTMLElement
         */
        this.setAttributeConfig('element', {
            value: Dom.get(attr.element),
            readOnly: true
         });
    },

    _initContent: function(attr) {
        this.initAttributes(attr);
        this.setAttributes(attr, true);
        this.fireQueue();

    },

    /**
     * Sets the value of the property and fires beforeChange and change events.
     * @private
     * @method _setHTMLAttrConfig
     * @param {YAHOO.util.Element} element The Element instance to
     * register the config to.
     * @param {String} key The name of the config to register
     * @param {Object} map A key-value map of the config's params
     */
    _setHTMLAttrConfig: function(key, map) {
        var el = this.get('element');
        map = map || {};
        map.name = key;

        map.setter = map.setter || this.DEFAULT_HTML_SETTER;
        map.getter = map.getter || this.DEFAULT_HTML_GETTER;

        map.value = map.value || el[key];
        this._configs[key] = new YAHOO.util.Attribute(map, this);
    }
};

/**
 * Fires when the Element's HTMLElement can be retrieved by Id.
 * <p>See: <a href="#addListener">Element.addListener</a></p>
 * <p><strong>Event fields:</strong><br>
 * <code>&lt;String&gt; type</code> available<br>
 * <code>&lt;HTMLElement&gt;
 * target</code> the HTMLElement bound to this Element instance<br>
 * <p><strong>Usage:</strong><br>
 * <code>var handler = function(e) {var target = e.target};<br>
 * myTabs.addListener('available', handler);</code></p>
 * @event available
 */
 
/**
 * Fires when the Element's HTMLElement subtree is rendered.
 * <p>See: <a href="#addListener">Element.addListener</a></p>
 * <p><strong>Event fields:</strong><br>
 * <code>&lt;String&gt; type</code> contentReady<br>
 * <code>&lt;HTMLElement&gt;
 * target</code> the HTMLElement bound to this Element instance<br>
 * <p><strong>Usage:</strong><br>
 * <code>var handler = function(e) {var target = e.target};<br>
 * myTabs.addListener('contentReady', handler);</code></p>
 * @event contentReady
 */

/**
 * Fires before the Element is appended to another Element.
 * <p>See: <a href="#addListener">Element.addListener</a></p>
 * <p><strong>Event fields:</strong><br>
 * <code>&lt;String&gt; type</code> beforeAppendTo<br>
 * <code>&lt;HTMLElement/Element&gt;
 * target</code> the HTMLElement/Element being appended to 
 * <p><strong>Usage:</strong><br>
 * <code>var handler = function(e) {var target = e.target};<br>
 * myTabs.addListener('beforeAppendTo', handler);</code></p>
 * @event beforeAppendTo
 */

/**
 * Fires after the Element is appended to another Element.
 * <p>See: <a href="#addListener">Element.addListener</a></p>
 * <p><strong>Event fields:</strong><br>
 * <code>&lt;String&gt; type</code> appendTo<br>
 * <code>&lt;HTMLElement/Element&gt;
 * target</code> the HTMLElement/Element being appended to 
 * <p><strong>Usage:</strong><br>
 * <code>var handler = function(e) {var target = e.target};<br>
 * myTabs.addListener('appendTo', handler);</code></p>
 * @event appendTo
 */

YAHOO.augment(Element, AttributeProvider);
YAHOO.util.Element = Element;
})();

YAHOO.register("element", YAHOO.util.Element, {version: "2.7.0", build: "1796"});
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
/**
* @module button
* @description <p>The Button Control enables the creation of rich, graphical 
* buttons that function like traditional HTML form buttons.  <em>Unlike</em> 
* traditional HTML form buttons, buttons created with the Button Control can have 
* a label that is different from its value.  With the inclusion of the optional 
* <a href="module_menu.html">Menu Control</a>, the Button Control can also be
* used to create menu buttons and split buttons, controls that are not 
* available natively in HTML.  The Button Control can also be thought of as a 
* way to create more visually engaging implementations of the browser's 
* default radio-button and check-box controls.</p>
* <p>The Button Control supports the following types:</p>
* <dl>
* <dt>push</dt>
* <dd>Basic push button that can execute a user-specified command when 
* pressed.</dd>
* <dt>link</dt>
* <dd>Navigates to a specified url when pressed.</dd>
* <dt>submit</dt>
* <dd>Submits the parent form when pressed.</dd>
* <dt>reset</dt>
* <dd>Resets the parent form when pressed.</dd>
* <dt>checkbox</dt>
* <dd>Maintains a "checked" state that can be toggled on and off.</dd>
* <dt>radio</dt>
* <dd>Maintains a "checked" state that can be toggled on and off.  Use with 
* the ButtonGroup class to create a set of controls that are mutually 
* exclusive; checking one button in the set will uncheck all others in 
* the group.</dd>
* <dt>menu</dt>
* <dd>When pressed will show/hide a menu.</dd>
* <dt>split</dt>
* <dd>Can execute a user-specified command or display a menu when pressed.</dd>
* </dl>
* @title Button
* @namespace YAHOO.widget
* @requires yahoo, dom, element, event
* @optional container, menu
*/


(function () {


    /**
    * The Button class creates a rich, graphical button.
    * @param {String} p_oElement String specifying the id attribute of the 
    * <code>&#60;input&#62;</code>, <code>&#60;button&#62;</code>,
    * <code>&#60;a&#62;</code>, or <code>&#60;span&#62;</code> element to 
    * be used to create the button.
    * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-6043025">HTMLInputElement</a>|<a href="http://www.w3.org
    * /TR/2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-34812697">
    * HTMLButtonElement</a>|<a href="
    * http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.html#
    * ID-33759296">HTMLElement</a>} p_oElement Object reference for the 
    * <code>&#60;input&#62;</code>, <code>&#60;button&#62;</code>, 
    * <code>&#60;a&#62;</code>, or <code>&#60;span&#62;</code> element to be 
    * used to create the button.
    * @param {Object} p_oElement Object literal specifying a set of   
    * configuration attributes used to create the button.
    * @param {Object} p_oAttributes Optional. Object literal specifying a set  
    * of configuration attributes used to create the button.
    * @namespace YAHOO.widget
    * @class Button
    * @constructor
    * @extends YAHOO.util.Element
    */



    // Shorthard for utilities

    var Dom = YAHOO.util.Dom,
        Event = YAHOO.util.Event,
        Lang = YAHOO.lang,
        UA = YAHOO.env.ua,
        Overlay = YAHOO.widget.Overlay,
        Menu = YAHOO.widget.Menu,
    
    
        // Private member variables
    
        m_oButtons = {},    // Collection of all Button instances
        m_oOverlayManager = null,   // YAHOO.widget.OverlayManager instance
        m_oSubmitTrigger = null,    // The button that submitted the form 
        m_oFocusedButton = null;    // The button that has focus



    // Private methods

    
    
    /**
    * @method createInputElement
    * @description Creates an <code>&#60;input&#62;</code> element of the 
    * specified type.
    * @private
    * @param {String} p_sType String specifying the type of 
    * <code>&#60;input&#62;</code> element to create.
    * @param {String} p_sName String specifying the name of 
    * <code>&#60;input&#62;</code> element to create.
    * @param {String} p_sValue String specifying the value of 
    * <code>&#60;input&#62;</code> element to create.
    * @param {String} p_bChecked Boolean specifying if the  
    * <code>&#60;input&#62;</code> element is to be checked.
    * @return {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-6043025">HTMLInputElement</a>}
    */
    function createInputElement(p_sType, p_sName, p_sValue, p_bChecked) {
    
        var oInput,
            sInput;
    
        if (Lang.isString(p_sType) && Lang.isString(p_sName)) {
        
            if (UA.ie) {
        
                /*
                    For IE it is necessary to create the element with the 
                    "type," "name," "value," and "checked" properties set all 
                    at once.
                */
            
                sInput = "<input type=\"" + p_sType + "\" name=\"" + 
                    p_sName + "\"";
        
                if (p_bChecked) {
        
                    sInput += " checked";
                
                }
                
                sInput += ">";
        
                oInput = document.createElement(sInput);
        
            }
            else {
            
                oInput = document.createElement("input");
                oInput.name = p_sName;
                oInput.type = p_sType;
        
                if (p_bChecked) {
        
                    oInput.checked = true;
                
                }
        
            }
        
            oInput.value = p_sValue;
        
        }

		return oInput;
    
    }
    
    
    /**
    * @method setAttributesFromSrcElement
    * @description Gets the values for all the attributes of the source element 
    * (either <code>&#60;input&#62;</code> or <code>&#60;a&#62;</code>) that 
    * map to Button configuration attributes and sets them into a collection 
    * that is passed to the Button constructor.
    * @private
    * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-6043025">HTMLInputElement</a>|<a href="http://www.w3.org/
    * TR/2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-
    * 48250443">HTMLAnchorElement</a>} p_oElement Object reference to the HTML 
    * element (either <code>&#60;input&#62;</code> or <code>&#60;span&#62;
    * </code>) used to create the button.
    * @param {Object} p_oAttributes Object reference for the collection of 
    * configuration attributes used to create the button.
    */
    function setAttributesFromSrcElement(p_oElement, p_oAttributes) {
    
        var sSrcElementNodeName = p_oElement.nodeName.toUpperCase(),
            me = this,
            oAttribute,
            oRootNode,
            sText;
            
    
        /**
        * @method setAttributeFromDOMAttribute
        * @description Gets the value of the specified DOM attribute and sets it 
        * into the collection of configuration attributes used to configure 
        * the button.
        * @private
        * @param {String} p_sAttribute String representing the name of the 
        * attribute to retrieve from the DOM element.
        */
        function setAttributeFromDOMAttribute(p_sAttribute) {
    
            if (!(p_sAttribute in p_oAttributes)) {
    
                /*
                    Need to use "getAttributeNode" instead of "getAttribute" 
                    because using "getAttribute," IE will return the innerText 
                    of a <code>&#60;button&#62;</code> for the value attribute  
                    rather than the value of the "value" attribute.
                */
        
                oAttribute = p_oElement.getAttributeNode(p_sAttribute);
        
    
                if (oAttribute && ("value" in oAttribute)) {
    
    
                    p_oAttributes[p_sAttribute] = oAttribute.value;
    
                }
    
            }
        
        }
    
    
        /**
        * @method setFormElementProperties
        * @description Gets the value of the attributes from the form element  
        * and sets them into the collection of configuration attributes used to 
        * configure the button.
        * @private
        */
        function setFormElementProperties() {
    
            setAttributeFromDOMAttribute("type");
    
            if (p_oAttributes.type == "button") {
            
                p_oAttributes.type = "push";
            
            }
    
            if (!("disabled" in p_oAttributes)) {
    
                p_oAttributes.disabled = p_oElement.disabled;
    
            }
    
            setAttributeFromDOMAttribute("name");
            setAttributeFromDOMAttribute("value");
            setAttributeFromDOMAttribute("title");
    
        }

    
        switch (sSrcElementNodeName) {
        
        case "A":
            
            p_oAttributes.type = "link";
            
            setAttributeFromDOMAttribute("href");
            setAttributeFromDOMAttribute("target");
        
            break;
    
        case "INPUT":

            setFormElementProperties();

            if (!("checked" in p_oAttributes)) {
    
                p_oAttributes.checked = p_oElement.checked;
    
            }

            break;

        case "BUTTON":

            setFormElementProperties();

            oRootNode = p_oElement.parentNode.parentNode;

            if (Dom.hasClass(oRootNode, this.CSS_CLASS_NAME + "-checked")) {
            
                p_oAttributes.checked = true;
            
            }

            if (Dom.hasClass(oRootNode, this.CSS_CLASS_NAME + "-disabled")) {

                p_oAttributes.disabled = true;
            
            }

            p_oElement.removeAttribute("value");

            p_oElement.setAttribute("type", "button");

            break;
        
        }

        p_oElement.removeAttribute("id");
        p_oElement.removeAttribute("name");
        
        if (!("tabindex" in p_oAttributes)) {

            p_oAttributes.tabindex = p_oElement.tabIndex;

        }
    
        if (!("label" in p_oAttributes)) {
    
            // Set the "label" property
        
            sText = sSrcElementNodeName == "INPUT" ? 
                            p_oElement.value : p_oElement.innerHTML;
        
    
            if (sText && sText.length > 0) {
                
                p_oAttributes.label = sText;
                
            } 
    
        }
    
    }
    
    
    /**
    * @method initConfig
    * @description Initializes the set of configuration attributes that are 
    * used to instantiate the button.
    * @private
    * @param {Object} Object representing the button's set of 
    * configuration attributes.
    */
    function initConfig(p_oConfig) {
    
        var oAttributes = p_oConfig.attributes,
            oSrcElement = oAttributes.srcelement,
            sSrcElementNodeName = oSrcElement.nodeName.toUpperCase(),
            me = this;
    
    
        if (sSrcElementNodeName == this.NODE_NAME) {
    
            p_oConfig.element = oSrcElement;
            p_oConfig.id = oSrcElement.id;

            Dom.getElementsBy(function (p_oElement) {
            
                switch (p_oElement.nodeName.toUpperCase()) {
                
                case "BUTTON":
                case "A":
                case "INPUT":

                    setAttributesFromSrcElement.call(me, p_oElement, 
                        oAttributes);

                    break;                        
                
                }
            
            }, "*", oSrcElement);
        
        }
        else {
    
            switch (sSrcElementNodeName) {

            case "BUTTON":
            case "A":
            case "INPUT":

                setAttributesFromSrcElement.call(this, oSrcElement, 
                    oAttributes);

                break;

            }
        
        }
    
    }



    //  Constructor

    YAHOO.widget.Button = function (p_oElement, p_oAttributes) {
    
		if (!Overlay && YAHOO.widget.Overlay) {
		
			Overlay = YAHOO.widget.Overlay;
		
		}


		if (!Menu && YAHOO.widget.Menu) {
		
			Menu = YAHOO.widget.Menu;
		
		}


        var fnSuperClass = YAHOO.widget.Button.superclass.constructor,
            oConfig,
            oElement;
    

        if (arguments.length == 1 && !Lang.isString(p_oElement) && !p_oElement.nodeName) {
    
            if (!p_oElement.id) {
    
                p_oElement.id = Dom.generateId();
    
    
            }
    
    
            fnSuperClass.call(this, (this.createButtonElement(p_oElement.type)), p_oElement);
    
        }
        else {
    
            oConfig = { element: null, attributes: (p_oAttributes || {}) };
    
    
            if (Lang.isString(p_oElement)) {
    
                oElement = Dom.get(p_oElement);
    
                if (oElement) {

                    if (!oConfig.attributes.id) {
                    
                        oConfig.attributes.id = p_oElement;
                    
                    }
    
                
                
                    oConfig.attributes.srcelement = oElement;
                
                    initConfig.call(this, oConfig);
                
                
                    if (!oConfig.element) {
                
                
                        oConfig.element = this.createButtonElement(oConfig.attributes.type);
                
                    }
                
                    fnSuperClass.call(this, oConfig.element, oConfig.attributes);
    
                }
    
            }
            else if (p_oElement.nodeName) {
    
                if (!oConfig.attributes.id) {
    
                    if (p_oElement.id) {
        
                        oConfig.attributes.id = p_oElement.id;
                    
                    }
                    else {
        
                        oConfig.attributes.id = Dom.generateId();
        
        
                    }
    
                }
    
    
    
                oConfig.attributes.srcelement = p_oElement;
        
                initConfig.call(this, oConfig);
        
        
                if (!oConfig.element) {
    
            
                    oConfig.element = this.createButtonElement(oConfig.attributes.type);
            
                }
            
                fnSuperClass.call(this, oConfig.element, oConfig.attributes);
            
            }
    
        }
    
    };



    YAHOO.extend(YAHOO.widget.Button, YAHOO.util.Element, {
    
    
        // Protected properties
        
        
        /** 
        * @property _button
        * @description Object reference to the button's internal 
        * <code>&#60;a&#62;</code> or <code>&#60;button&#62;</code> element.
        * @default null
        * @protected
        * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-48250443">HTMLAnchorElement</a>|<a href="
        * http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.html
        * #ID-34812697">HTMLButtonElement</a>
        */
        _button: null,
        
        
        /** 
        * @property _menu
        * @description Object reference to the button's menu.
        * @default null
        * @protected
        * @type {<a href="YAHOO.widget.Overlay.html">YAHOO.widget.Overlay</a>|
        * <a href="YAHOO.widget.Menu.html">YAHOO.widget.Menu</a>}
        */
        _menu: null,
        
        
        /** 
        * @property _hiddenFields
        * @description Object reference to the <code>&#60;input&#62;</code>  
        * element, or array of HTML form elements used to represent the button
        *  when its parent form is submitted.
        * @default null
        * @protected
        * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-6043025">HTMLInputElement</a>|Array
        */
        _hiddenFields: null,
        
        
        /** 
        * @property _onclickAttributeValue
        * @description Object reference to the button's current value for the 
        * "onclick" configuration attribute.
        * @default null
        * @protected
        * @type Object
        */
        _onclickAttributeValue: null,
        
        
        /** 
        * @property _activationKeyPressed
        * @description Boolean indicating if the key(s) that toggle the button's 
        * "active" state have been pressed.
        * @default false
        * @protected
        * @type Boolean
        */
        _activationKeyPressed: false,
        
        
        /** 
        * @property _activationButtonPressed
        * @description Boolean indicating if the mouse button that toggles 
        * the button's "active" state has been pressed.
        * @default false
        * @protected
        * @type Boolean
        */
        _activationButtonPressed: false,
        
        
        /** 
        * @property _hasKeyEventHandlers
        * @description Boolean indicating if the button's "blur", "keydown" and 
        * "keyup" event handlers are assigned
        * @default false
        * @protected
        * @type Boolean
        */
        _hasKeyEventHandlers: false,
        
        
        /** 
        * @property _hasMouseEventHandlers
        * @description Boolean indicating if the button's "mouseout," 
        * "mousedown," and "mouseup" event handlers are assigned
        * @default false
        * @protected
        * @type Boolean
        */
        _hasMouseEventHandlers: false,


        /** 
        * @property _nOptionRegionX
        * @description Number representing the X coordinate of the leftmost edge of the Button's 
        * option region.  Applies only to Buttons of type "split".
        * @default 0
        * @protected
        * @type Number
        */        
        _nOptionRegionX: 0,
        


        // Constants
        
        
        /**
        * @property NODE_NAME
        * @description The name of the node to be used for the button's 
        * root element.
        * @default "SPAN"
        * @final
        * @type String
        */
        NODE_NAME: "SPAN",
        
        
        /**
        * @property CHECK_ACTIVATION_KEYS
        * @description Array of numbers representing keys that (when pressed) 
        * toggle the button's "checked" attribute.
        * @default [32]
        * @final
        * @type Array
        */
        CHECK_ACTIVATION_KEYS: [32],
        
        
        /**
        * @property ACTIVATION_KEYS
        * @description Array of numbers representing keys that (when presed) 
        * toggle the button's "active" state.
        * @default [13, 32]
        * @final
        * @type Array
        */
        ACTIVATION_KEYS: [13, 32],
        
        
        /**
        * @property OPTION_AREA_WIDTH
        * @description Width (in pixels) of the area of a split button that  
        * when pressed will display a menu.
        * @default 20
        * @final
        * @type Number
        */
        OPTION_AREA_WIDTH: 20,
        
        
        /**
        * @property CSS_CLASS_NAME
        * @description String representing the CSS class(es) to be applied to  
        * the button's root element.
        * @default "yui-button"
        * @final
        * @type String
        */
        CSS_CLASS_NAME: "yui-button",
        
        
        /**
        * @property RADIO_DEFAULT_TITLE
        * @description String representing the default title applied to buttons 
        * of type "radio." 
        * @default "Unchecked.  Click to check."
        * @final
        * @type String
        */
        RADIO_DEFAULT_TITLE: "Unchecked.  Click to check.",
        
        
        /**
        * @property RADIO_CHECKED_TITLE
        * @description String representing the title applied to buttons of 
        * type "radio" when checked.
        * @default "Checked.  Click another button to uncheck"
        * @final
        * @type String
        */
        RADIO_CHECKED_TITLE: "Checked.  Click another button to uncheck",
        
        
        /**
        * @property CHECKBOX_DEFAULT_TITLE
        * @description String representing the default title applied to 
        * buttons of type "checkbox." 
        * @default "Unchecked.  Click to check."
        * @final
        * @type String
        */
        CHECKBOX_DEFAULT_TITLE: "Unchecked.  Click to check.",
        
        
        /**
        * @property CHECKBOX_CHECKED_TITLE
        * @description String representing the title applied to buttons of type 
        * "checkbox" when checked.
        * @default "Checked.  Click to uncheck."
        * @final
        * @type String
        */
        CHECKBOX_CHECKED_TITLE: "Checked.  Click to uncheck.",
        
        
        /**
        * @property MENUBUTTON_DEFAULT_TITLE
        * @description String representing the default title applied to 
        * buttons of type "menu." 
        * @default "Menu collapsed.  Click to expand."
        * @final
        * @type String
        */
        MENUBUTTON_DEFAULT_TITLE: "Menu collapsed.  Click to expand.",
        
        
        /**
        * @property MENUBUTTON_MENU_VISIBLE_TITLE
        * @description String representing the title applied to buttons of type 
        * "menu" when the button's menu is visible. 
        * @default "Menu expanded.  Click or press Esc to collapse."
        * @final
        * @type String
        */
        MENUBUTTON_MENU_VISIBLE_TITLE: 
            "Menu expanded.  Click or press Esc to collapse.",
        
        
        /**
        * @property SPLITBUTTON_DEFAULT_TITLE
        * @description  String representing the default title applied to 
        * buttons of type "split." 
        * @default "Menu collapsed.  Click inside option region or press 
        * Ctrl + Shift + M to show the menu."
        * @final
        * @type String
        */
        SPLITBUTTON_DEFAULT_TITLE: ("Menu collapsed.  Click inside option " + 
            "region or press down arrow key to show the menu."),
        
        
        /**
        * @property SPLITBUTTON_OPTION_VISIBLE_TITLE
        * @description String representing the title applied to buttons of type 
        * "split" when the button's menu is visible. 
        * @default "Menu expanded.  Press Esc or Ctrl + Shift + M to hide 
        * the menu."
        * @final
        * @type String
        */
        SPLITBUTTON_OPTION_VISIBLE_TITLE: 
            "Menu expanded.  Press Esc to hide the menu.",
        
        
        /**
        * @property SUBMIT_TITLE
        * @description String representing the title applied to buttons of 
        * type "submit." 
        * @default "Click to submit form."
        * @final
        * @type String
        */
        SUBMIT_TITLE: "Click to submit form.",
        
        
        
        // Protected attribute setter methods
        
        
        /**
        * @method _setType
        * @description Sets the value of the button's "type" attribute.
        * @protected
        * @param {String} p_sType String indicating the value for the button's 
        * "type" attribute.
        */
        _setType: function (p_sType) {
        
            if (p_sType == "split") {
        
                this.on("option", this._onOption);
        
            }
        
        },
        
        
        /**
        * @method _setLabel
        * @description Sets the value of the button's "label" attribute.
        * @protected
        * @param {String} p_sLabel String indicating the value for the button's 
        * "label" attribute.
        */
        _setLabel: function (p_sLabel) {

            this._button.innerHTML = p_sLabel;

            
            /*
                Remove and add the default class name from the root element
                for Gecko to ensure that the button shrinkwraps to the label.
                Without this the button will not be rendered at the correct 
                width when the label changes.  The most likely cause for this 
                bug is button's use of the Gecko-specific CSS display type of 
                "-moz-inline-box" to simulate "inline-block" supported by IE, 
                Safari and Opera.
            */
            
            var sClass,
                nGeckoVersion = UA.gecko;
				
            
            if (nGeckoVersion && nGeckoVersion < 1.9 && Dom.inDocument(this.get("element"))) {
            
                sClass = this.CSS_CLASS_NAME;                

                this.removeClass(sClass);
                
                Lang.later(0, this, this.addClass, sClass);

            }
        
        },
        
        
        /**
        * @method _setTabIndex
        * @description Sets the value of the button's "tabindex" attribute.
        * @protected
        * @param {Number} p_nTabIndex Number indicating the value for the 
        * button's "tabindex" attribute.
        */
        _setTabIndex: function (p_nTabIndex) {
        
            this._button.tabIndex = p_nTabIndex;
        
        },
        
        
        /**
        * @method _setTitle
        * @description Sets the value of the button's "title" attribute.
        * @protected
        * @param {String} p_nTabIndex Number indicating the value for 
        * the button's "title" attribute.
        */
        _setTitle: function (p_sTitle) {
        
            var sTitle = p_sTitle;
        
            if (this.get("type") != "link") {
        
                if (!sTitle) {
        
                    switch (this.get("type")) {
        
                    case "radio":
    
                        sTitle = this.RADIO_DEFAULT_TITLE;
    
                        break;
    
                    case "checkbox":
    
                        sTitle = this.CHECKBOX_DEFAULT_TITLE;
    
                        break;
                    
                    case "menu":
    
                        sTitle = this.MENUBUTTON_DEFAULT_TITLE;
    
                        break;
    
                    case "split":
    
                        sTitle = this.SPLITBUTTON_DEFAULT_TITLE;
    
                        break;
    
                    case "submit":
    
                        sTitle = this.SUBMIT_TITLE;
    
                        break;
        
                    }
        
                }
        
                this._button.title = sTitle;
        
            }
        
        },
        
        
        /**
        * @method _setDisabled
        * @description Sets the value of the button's "disabled" attribute.
        * @protected
        * @param {Boolean} p_bDisabled Boolean indicating the value for 
        * the button's "disabled" attribute.
        */
        _setDisabled: function (p_bDisabled) {
        
            if (this.get("type") != "link") {
        
                if (p_bDisabled) {
        
                    if (this._menu) {
        
                        this._menu.hide();
        
                    }
        
                    if (this.hasFocus()) {
                    
                        this.blur();
                    
                    }
        
                    this._button.setAttribute("disabled", "disabled");
        
                    this.addStateCSSClasses("disabled");

                    this.removeStateCSSClasses("hover");
                    this.removeStateCSSClasses("active");
                    this.removeStateCSSClasses("focus");
        
                }
                else {
        
                    this._button.removeAttribute("disabled");
        
                    this.removeStateCSSClasses("disabled");
                
                }
        
            }
        
        },

        
        /**
        * @method _setHref
        * @description Sets the value of the button's "href" attribute.
        * @protected
        * @param {String} p_sHref String indicating the value for the button's 
        * "href" attribute.
        */
        _setHref: function (p_sHref) {
        
            if (this.get("type") == "link") {
        
                this._button.href = p_sHref;
            
            }
        
        },
        
        
        /**
        * @method _setTarget
        * @description Sets the value of the button's "target" attribute.
        * @protected
        * @param {String} p_sTarget String indicating the value for the button's 
        * "target" attribute.
        */
        _setTarget: function (p_sTarget) {
        
            if (this.get("type") == "link") {
        
                this._button.setAttribute("target", p_sTarget);
            
            }
        
        },
        
        
        /**
        * @method _setChecked
        * @description Sets the value of the button's "target" attribute.
        * @protected
        * @param {Boolean} p_bChecked Boolean indicating the value for  
        * the button's "checked" attribute.
        */
        _setChecked: function (p_bChecked) {
        
            var sType = this.get("type"),
                sTitle;
        
            if (sType == "checkbox" || sType == "radio") {
        
                if (p_bChecked) {
        
                    this.addStateCSSClasses("checked");
                    
                    sTitle = (sType == "radio") ? 
                                this.RADIO_CHECKED_TITLE : 
                                this.CHECKBOX_CHECKED_TITLE;
                
                }
                else {

                    this.removeStateCSSClasses("checked");
        
                    sTitle = (sType == "radio") ? 
                                this.RADIO_DEFAULT_TITLE : 
                                this.CHECKBOX_DEFAULT_TITLE;
                
                }


        		if (!this._hasDefaultTitle) {
        
                	this.set("title", sTitle);
                
                }
        
            }
        
        },

        
        /**
        * @method _setMenu
        * @description Sets the value of the button's "menu" attribute.
        * @protected
        * @param {Object} p_oMenu Object indicating the value for the button's 
        * "menu" attribute.
        */
        _setMenu: function (p_oMenu) {

            var bLazyLoad = this.get("lazyloadmenu"),
                oButtonElement = this.get("element"),
                sMenuCSSClassName,
        
                /*
                    Boolean indicating if the value of p_oMenu is an instance 
                    of YAHOO.widget.Menu or YAHOO.widget.Overlay.
                */
        
                bInstance = false,
                oMenu,
                oMenuElement,
                oSrcElement;
        

			function onAppendTo() {

				oMenu.render(oButtonElement.parentNode);
				
				this.removeListener("appendTo", onAppendTo);
			
			}
			
			
			function setMenuContainer() {

				oMenu.cfg.queueProperty("container", oButtonElement.parentNode);
				
				this.removeListener("appendTo", setMenuContainer);
			
			}


			function initMenu() {
		
				var oContainer;
		
				if (oMenu) {

					Dom.addClass(oMenu.element, this.get("menuclassname"));
					Dom.addClass(oMenu.element, "yui-" + this.get("type") + "-button-menu");

					oMenu.showEvent.subscribe(this._onMenuShow, null, this);
					oMenu.hideEvent.subscribe(this._onMenuHide, null, this);
					oMenu.renderEvent.subscribe(this._onMenuRender, null, this);


					if (Menu && oMenu instanceof Menu) {

						if (bLazyLoad) {

							oContainer = this.get("container");

							if (oContainer) {

								oMenu.cfg.queueProperty("container", oContainer);

							}
							else {

								this.on("appendTo", setMenuContainer);

							}

						}

						oMenu.cfg.queueProperty("clicktohide", false);

						oMenu.keyDownEvent.subscribe(this._onMenuKeyDown, this, true);
						oMenu.subscribe("click", this._onMenuClick, this, true);

						this.on("selectedMenuItemChange", this._onSelectedMenuItemChange);
		
						oSrcElement = oMenu.srcElement;
		
						if (oSrcElement && oSrcElement.nodeName.toUpperCase() == "SELECT") {

							oSrcElement.style.display = "none";
							oSrcElement.parentNode.removeChild(oSrcElement);
		
						}
		
					}
					else if (Overlay && oMenu instanceof Overlay) {
		
						if (!m_oOverlayManager) {
		
							m_oOverlayManager = new YAHOO.widget.OverlayManager();
						
						}
						
						m_oOverlayManager.register(oMenu);
						
					}
		
		
					this._menu = oMenu;

		
					if (!bInstance && !bLazyLoad) {
		
						if (Dom.inDocument(oButtonElement)) {
	
							oMenu.render(oButtonElement.parentNode);
						
						}
						else {
		
							this.on("appendTo", onAppendTo);
						
						}
					
					}
		
				}
		
			}

        
            if (Overlay) {
        
				if (Menu) {
				
					sMenuCSSClassName = Menu.prototype.CSS_CLASS_NAME;
				
				}
			
				if (p_oMenu && Menu && (p_oMenu instanceof Menu)) {
			
					oMenu = p_oMenu;
					bInstance = true;
			
					initMenu.call(this);
			
				}
				else if (Overlay && p_oMenu && (p_oMenu instanceof Overlay)) {
			
					oMenu = p_oMenu;
					bInstance = true;
			
					oMenu.cfg.queueProperty("visible", false);
			
					initMenu.call(this);
			
				}
				else if (Menu && Lang.isArray(p_oMenu)) {

					oMenu = new Menu(Dom.generateId(), { lazyload: bLazyLoad, itemdata: p_oMenu });
						
					this._menu = oMenu;
			
					this.on("appendTo", initMenu);
			
				}
				else if (Lang.isString(p_oMenu)) {
			
					oMenuElement = Dom.get(p_oMenu);
			
					if (oMenuElement) {
			
						if (Menu && Dom.hasClass(oMenuElement, sMenuCSSClassName) || 
							oMenuElement.nodeName.toUpperCase() == "SELECT") {
				
							oMenu = new Menu(p_oMenu, { lazyload: bLazyLoad });
				
							initMenu.call(this);
				
						}
						else if (Overlay) {
			
							oMenu = new Overlay(p_oMenu, { visible: false });
				
							initMenu.call(this);
				
						}
			
					}
			
				}
				else if (p_oMenu && p_oMenu.nodeName) {
			
					if (Menu && Dom.hasClass(p_oMenu, sMenuCSSClassName) || 
							p_oMenu.nodeName.toUpperCase() == "SELECT") {
			
						oMenu = new Menu(p_oMenu, { lazyload: bLazyLoad });
					
						initMenu.call(this);
			
					}
					else if (Overlay) {
			
						if (!p_oMenu.id) {
						
							Dom.generateId(p_oMenu);
						
						}
			
						oMenu = new Overlay(p_oMenu, { visible: false });
			
						initMenu.call(this);
					
					}
				
				}
            
            }
        
        },
        
        
        /**
        * @method _setOnClick
        * @description Sets the value of the button's "onclick" attribute.
        * @protected
        * @param {Object} p_oObject Object indicating the value for the button's 
        * "onclick" attribute.
        */
        _setOnClick: function (p_oObject) {
        
            /*
                Remove any existing listeners if a "click" event handler 
                has already been specified.
            */
        
            if (this._onclickAttributeValue && 
                (this._onclickAttributeValue != p_oObject)) {
        
                this.removeListener("click", this._onclickAttributeValue.fn);
        
                this._onclickAttributeValue = null;
        
            }
        
        
            if (!this._onclickAttributeValue && 
                Lang.isObject(p_oObject) && 
                Lang.isFunction(p_oObject.fn)) {
        
                this.on("click", p_oObject.fn, p_oObject.obj, p_oObject.scope);
        
                this._onclickAttributeValue = p_oObject;
        
            }
        
        },

        
        
        // Protected methods

        
        
        /**
        * @method _isActivationKey
        * @description Determines if the specified keycode is one that toggles  
        * the button's "active" state.
        * @protected
        * @param {Number} p_nKeyCode Number representing the keycode to 
        * be evaluated.
        * @return {Boolean}
        */
        _isActivationKey: function (p_nKeyCode) {
        
            var sType = this.get("type"),
                aKeyCodes = (sType == "checkbox" || sType == "radio") ? 
                    this.CHECK_ACTIVATION_KEYS : this.ACTIVATION_KEYS,
        
                nKeyCodes = aKeyCodes.length,
                bReturnVal = false,
                i;
        

            if (nKeyCodes > 0) {
        
                i = nKeyCodes - 1;
        
                do {
        
                    if (p_nKeyCode == aKeyCodes[i]) {
        
                        bReturnVal = true;
                        break;
        
                    }
        
                }
                while (i--);
            
            }
            
            return bReturnVal;
        
        },
        
        
        /**
        * @method _isSplitButtonOptionKey
        * @description Determines if the specified keycode is one that toggles  
        * the display of the split button's menu.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        * @return {Boolean}
        */
        _isSplitButtonOptionKey: function (p_oEvent) {

			var bShowMenu = (Event.getCharCode(p_oEvent) == 40);


			var onKeyPress = function (p_oEvent) {

				Event.preventDefault(p_oEvent);

				this.removeListener("keypress", onKeyPress);
			
			};


			// Prevent the browser from scrolling the window
			if (bShowMenu) {

				if (UA.opera) {
	
					this.on("keypress", onKeyPress);
	
				}

				Event.preventDefault(p_oEvent);
			}

            return bShowMenu;
        
        },
        
        
        /**
        * @method _addListenersToForm
        * @description Adds event handlers to the button's form.
        * @protected
        */
        _addListenersToForm: function () {
        
            var oForm = this.getForm(),
                onFormKeyPress = YAHOO.widget.Button.onFormKeyPress,
                bHasKeyPressListener,
                oSrcElement,
                aListeners,
                nListeners,
                i;
        
        
            if (oForm) {
        
                Event.on(oForm, "reset", this._onFormReset, null, this);
                Event.on(oForm, "submit", this._onFormSubmit, null, this);
        
                oSrcElement = this.get("srcelement");
        
        
                if (this.get("type") == "submit" || 
                    (oSrcElement && oSrcElement.type == "submit")) 
                {
                
                    aListeners = Event.getListeners(oForm, "keypress");
                    bHasKeyPressListener = false;
            
                    if (aListeners) {
            
                        nListeners = aListeners.length;
        
                        if (nListeners > 0) {
            
                            i = nListeners - 1;
                            
                            do {
               
                                if (aListeners[i].fn == onFormKeyPress) {
                
                                    bHasKeyPressListener = true;
                                    break;
                                
                                }
                
                            }
                            while (i--);
                        
                        }
                    
                    }
            
            
                    if (!bHasKeyPressListener) {
               
                        Event.on(oForm, "keypress", onFormKeyPress);
            
                    }
        
                }
            
            }
        
        },
        
        
        
        /**
        * @method _showMenu
        * @description Shows the button's menu.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object 
        * passed back by the event utility (YAHOO.util.Event) that triggered 
        * the display of the menu.
        */
        _showMenu: function (p_oEvent) {

            if (YAHOO.widget.MenuManager) {
                YAHOO.widget.MenuManager.hideVisible();
            }

        
            if (m_oOverlayManager) {
                m_oOverlayManager.hideAll();
            }


            var oMenu = this._menu,
            	aMenuAlignment = this.get("menualignment"),
            	bFocusMenu = this.get("focusmenu"),
				fnFocusMethod;


			if (this._renderedMenu) {

				oMenu.cfg.setProperty("context", 
								[this.get("element"), aMenuAlignment[0], aMenuAlignment[1]]);
	
				oMenu.cfg.setProperty("preventcontextoverlap", true);
				oMenu.cfg.setProperty("constraintoviewport", true);

			}
			else {

				oMenu.cfg.queueProperty("context", 
								[this.get("element"), aMenuAlignment[0], aMenuAlignment[1]]);
	
				oMenu.cfg.queueProperty("preventcontextoverlap", true);
				oMenu.cfg.queueProperty("constraintoviewport", true);
			
			}


			/*
				 Refocus the Button before showing its Menu in case the call to 
				 YAHOO.widget.MenuManager.hideVisible() resulted in another element in the 
				 DOM being focused after another Menu was hidden.
			*/
			
			this.focus();


            if (Menu && oMenu && (oMenu instanceof Menu)) {

				// Since Menus automatically focus themselves when made visible, temporarily 
				// replace the Menu focus method so that the value of the Button's "focusmenu"
				// attribute determines if the Menu should be focus when made visible.

				fnFocusMethod = oMenu.focus;

				oMenu.focus = function () {};

				if (this._renderedMenu) {

					oMenu.cfg.setProperty("minscrollheight", this.get("menuminscrollheight"));
					oMenu.cfg.setProperty("maxheight", this.get("menumaxheight"));
				
				}
				else {

					oMenu.cfg.queueProperty("minscrollheight", this.get("menuminscrollheight"));
					oMenu.cfg.queueProperty("maxheight", this.get("menumaxheight"));
				
				}


                oMenu.show();

        		oMenu.focus = fnFocusMethod;

				oMenu.align();
        

                /*
                    Stop the propagation of the event so that the MenuManager 
                    doesn't blur the menu after it gets focus.
                */
        
                if (p_oEvent.type == "mousedown") {
                    Event.stopPropagation(p_oEvent);
                }

        
                if (bFocusMenu) { 
                    oMenu.focus();
                }

            }
            else if (Overlay && oMenu && (oMenu instanceof Overlay)) {

				if (!this._renderedMenu) {
		            oMenu.render(this.get("element").parentNode);
				}

                oMenu.show();
				oMenu.align();

            }
        
        },
        
        
        /**
        * @method _hideMenu
        * @description Hides the button's menu.
        * @protected
        */
        _hideMenu: function () {
        
            var oMenu = this._menu;
        
            if (oMenu) {
        
                oMenu.hide();
        
            }
        
        },
        
        
        
        
        // Protected event handlers
        
        
        /**
        * @method _onMouseOver
        * @description "mouseover" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onMouseOver: function (p_oEvent) {
        
        	var sType = this.get("type"),
        		oElement,
				nOptionRegionX;


			if (sType === "split") {

				oElement = this.get("element");
				nOptionRegionX = 
					(Dom.getX(oElement) + (oElement.offsetWidth - this.OPTION_AREA_WIDTH));
					
				this._nOptionRegionX = nOptionRegionX;
			
			}
        

            if (!this._hasMouseEventHandlers) {
        
				if (sType === "split") {
        
	        		this.on("mousemove", this._onMouseMove);

        		}

                this.on("mouseout", this._onMouseOut);
        
                this._hasMouseEventHandlers = true;
        
            }
        

            this.addStateCSSClasses("hover");


			if (sType === "split" && (Event.getPageX(p_oEvent) > nOptionRegionX)) {
	
				this.addStateCSSClasses("hoveroption");
	
			}

        
            if (this._activationButtonPressed) {
        
                this.addStateCSSClasses("active");
        
            }
        
        
            if (this._bOptionPressed) {
        
                this.addStateCSSClasses("activeoption");
            
            }


            if (this._activationButtonPressed || this._bOptionPressed) {
        
                Event.removeListener(document, "mouseup", this._onDocumentMouseUp);
        
            }

        },


        /**
        * @method _onMouseMove
        * @description "mousemove" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */        
        _onMouseMove: function (p_oEvent) {
        
        	var nOptionRegionX = this._nOptionRegionX;
        
        	if (nOptionRegionX) {

				if (Event.getPageX(p_oEvent) > nOptionRegionX) {
					
					this.addStateCSSClasses("hoveroption");
	
				}
				else {

					this.removeStateCSSClasses("hoveroption");
				
				}
				
        	}
        
        },
        
        /**
        * @method _onMouseOut
        * @description "mouseout" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onMouseOut: function (p_oEvent) {

			var sType = this.get("type");
        
            this.removeStateCSSClasses("hover");
        

            if (sType != "menu") {
        
                this.removeStateCSSClasses("active");
        
            }
        

            if (this._activationButtonPressed || this._bOptionPressed) {
        
                Event.on(document, "mouseup", this._onDocumentMouseUp, null, this);
        
            }


			if (sType === "split" && (Event.getPageX(p_oEvent) > this._nOptionRegionX)) {
			
				this.removeStateCSSClasses("hoveroption");
	
			}
            
        },
        
        
        /**
        * @method _onDocumentMouseUp
        * @description "mouseup" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onDocumentMouseUp: function (p_oEvent) {
        
            this._activationButtonPressed = false;
            this._bOptionPressed = false;
        
            var sType = this.get("type"),
                oTarget,
                oMenuElement;
        
            if (sType == "menu" || sType == "split") {

                oTarget = Event.getTarget(p_oEvent);
                oMenuElement = this._menu.element;
        
                if (oTarget != oMenuElement && 
                    !Dom.isAncestor(oMenuElement, oTarget)) {

                    this.removeStateCSSClasses((sType == "menu" ? 
                        "active" : "activeoption"));
            
                    this._hideMenu();

                }
        
            }
        
            Event.removeListener(document, "mouseup", this._onDocumentMouseUp);
        
        },
        
        
        /**
        * @method _onMouseDown
        * @description "mousedown" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onMouseDown: function (p_oEvent) {
        
            var sType,
            	bReturnVal = true;
        
        
            function onMouseUp() {
            
                this._hideMenu();
                this.removeListener("mouseup", onMouseUp);
            
            }
        
        
            if ((p_oEvent.which || p_oEvent.button) == 1) {
        
        
                if (!this.hasFocus()) {
                
                    this.focus();
                
                }
        
        
                sType = this.get("type");
        
        
                if (sType == "split") {
                
                    if (Event.getPageX(p_oEvent) > this._nOptionRegionX) {
                        
                        this.fireEvent("option", p_oEvent);
						bReturnVal = false;
        
                    }
                    else {
        
                        this.addStateCSSClasses("active");
        
                        this._activationButtonPressed = true;
        
                    }
        
                }
                else if (sType == "menu") {
        
                    if (this.isActive()) {
        
                        this._hideMenu();
        
                        this._activationButtonPressed = false;
        
                    }
                    else {
        
                        this._showMenu(p_oEvent);
        
                        this._activationButtonPressed = true;
                    
                    }
        
                }
                else {
        
                    this.addStateCSSClasses("active");
        
                    this._activationButtonPressed = true;
                
                }
        
        
        
                if (sType == "split" || sType == "menu") {

                    this._hideMenuTimer = Lang.later(250, this, this.on, ["mouseup", onMouseUp]);
        
                }
        
            }
            
            return bReturnVal;
            
        },
        
        
        /**
        * @method _onMouseUp
        * @description "mouseup" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onMouseUp: function (p_oEvent) {
        
            var sType = this.get("type"),
            	oHideMenuTimer = this._hideMenuTimer,
            	bReturnVal = true;
        
        
            if (oHideMenuTimer) {
  
  				oHideMenuTimer.cancel();
        
            }
        
        
            if (sType == "checkbox" || sType == "radio") {
        
                this.set("checked", !(this.get("checked")));
            
            }
        
        
            this._activationButtonPressed = false;
            
        
            if (sType != "menu") {
        
                this.removeStateCSSClasses("active");
            
            }

                
			if (sType == "split" && Event.getPageX(p_oEvent) > this._nOptionRegionX) {
				
				bReturnVal = false;

			}

			return bReturnVal;
            
        },
        
        
        /**
        * @method _onFocus
        * @description "focus" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onFocus: function (p_oEvent) {
        
            var oElement;
        
            this.addStateCSSClasses("focus");
        
            if (this._activationKeyPressed) {
        
                this.addStateCSSClasses("active");
           
            }
        
            m_oFocusedButton = this;
        
        
            if (!this._hasKeyEventHandlers) {
        
                oElement = this._button;
        
                Event.on(oElement, "blur", this._onBlur, null, this);
                Event.on(oElement, "keydown", this._onKeyDown, null, this);
                Event.on(oElement, "keyup", this._onKeyUp, null, this);
        
                this._hasKeyEventHandlers = true;
        
            }
        
        
            this.fireEvent("focus", p_oEvent);
        
        },
        
        
        /**
        * @method _onBlur
        * @description "blur" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onBlur: function (p_oEvent) {
        
            this.removeStateCSSClasses("focus");
        
            if (this.get("type") != "menu") {
        
                this.removeStateCSSClasses("active");

            }    
        
            if (this._activationKeyPressed) {
        
                Event.on(document, "keyup", this._onDocumentKeyUp, null, this);
        
            }
        
        
            m_oFocusedButton = null;
        
            this.fireEvent("blur", p_oEvent);
           
        },
        
        
        /**
        * @method _onDocumentKeyUp
        * @description "keyup" event handler for the document.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onDocumentKeyUp: function (p_oEvent) {
        
            if (this._isActivationKey(Event.getCharCode(p_oEvent))) {
        
                this._activationKeyPressed = false;
                
                Event.removeListener(document, "keyup", this._onDocumentKeyUp);
            
            }
        
        },
        
        
        /**
        * @method _onKeyDown
        * @description "keydown" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onKeyDown: function (p_oEvent) {
        
            var oMenu = this._menu;
        
        
            if (this.get("type") == "split" && 
                this._isSplitButtonOptionKey(p_oEvent)) {
        
                this.fireEvent("option", p_oEvent);
        
            }
            else if (this._isActivationKey(Event.getCharCode(p_oEvent))) {
        
                if (this.get("type") == "menu") {
        
                    this._showMenu(p_oEvent);
        
                }
                else {
        
                    this._activationKeyPressed = true;
                    
                    this.addStateCSSClasses("active");
                
                }
            
            }
        
        
            if (oMenu && oMenu.cfg.getProperty("visible") && 
                Event.getCharCode(p_oEvent) == 27) {
            
                oMenu.hide();
                this.focus();
            
            }
        
        },
        
        
        /**
        * @method _onKeyUp
        * @description "keyup" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onKeyUp: function (p_oEvent) {
        
            var sType;
        
            if (this._isActivationKey(Event.getCharCode(p_oEvent))) {
        
                sType = this.get("type");
        
                if (sType == "checkbox" || sType == "radio") {
        
                    this.set("checked", !(this.get("checked")));
                
                }
        
                this._activationKeyPressed = false;
        
                if (this.get("type") != "menu") {
        
                    this.removeStateCSSClasses("active");
        
                }
        
            }
        
        },
        
        
        /**
        * @method _onClick
        * @description "click" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onClick: function (p_oEvent) {
        
            var sType = this.get("type"),
                sTitle,
                oForm,
                oSrcElement,
                bReturnVal;
        

			switch (sType) {

			case "radio":
			case "checkbox":

				if (!this._hasDefaultTitle) {

					if (this.get("checked")) {

						sTitle = (sType == "radio") ? 
									this.RADIO_CHECKED_TITLE : 
									this.CHECKBOX_CHECKED_TITLE;

					}
					else {

						sTitle = (sType == "radio") ? 
									this.RADIO_DEFAULT_TITLE : 
									this.CHECKBOX_DEFAULT_TITLE;

					}

					this.set("title", sTitle);

				}

				break;

			case "submit":

				if (p_oEvent.returnValue !== false) {

					this.submitForm();

				}

				break;

			case "reset":

				oForm = this.getForm();

				if (oForm) {

					oForm.reset();

				}

				break;

			case "menu":

				sTitle = this._menu.cfg.getProperty("visible") ? 
								this.MENUBUTTON_MENU_VISIBLE_TITLE : 
								this.MENUBUTTON_DEFAULT_TITLE;

				this.set("title", sTitle);

				break;

			case "split":

				if (this._nOptionRegionX > 0 && 
						(Event.getPageX(p_oEvent) > this._nOptionRegionX)) {

					bReturnVal = false;

				}
				else {

					this._hideMenu();

					oSrcElement = this.get("srcelement");

					if (oSrcElement && oSrcElement.type == "submit" && 
							p_oEvent.returnValue !== false) {

						this.submitForm();

					}

				}

				sTitle = this._menu.cfg.getProperty("visible") ? 
								this.SPLITBUTTON_OPTION_VISIBLE_TITLE : 
								this.SPLITBUTTON_DEFAULT_TITLE;

				this.set("title", sTitle);

				break;

			}

			return bReturnVal;
        
        },
        
        
        /**
        * @method _onDblClick
        * @description "dblclick" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onDblClick: function (p_oEvent) {
        
            var bReturnVal = true;
    
			if (this.get("type") == "split" && Event.getPageX(p_oEvent) > this._nOptionRegionX) {

				bReturnVal = false;
			
			}
        
        	return bReturnVal;
        
        },        
        
        
        /**
        * @method _onAppendTo
        * @description "appendTo" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onAppendTo: function (p_oEvent) {
        
            /*
                It is necessary to call "_addListenersToForm" using 
                "setTimeout" to make sure that the button's "form" property 
                returns a node reference.  Sometimes, if you try to get the 
                reference immediately after appending the field, it is null.
            */
        
            Lang.later(0, this, this._addListenersToForm);
        
        },
        
        
        /**
        * @method _onFormReset
        * @description "reset" event handler for the button's form.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event 
        * object passed back by the event utility (YAHOO.util.Event).
        */
        _onFormReset: function (p_oEvent) {
        
            var sType = this.get("type"),
                oMenu = this._menu;
        
            if (sType == "checkbox" || sType == "radio") {
        
                this.resetValue("checked");
        
            }
        
        
            if (Menu && oMenu && (oMenu instanceof Menu)) {
        
                this.resetValue("selectedMenuItem");
        
            }
        
        },


        /**
        * @method _onFormSubmit
        * @description "submit" event handler for the button's form.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event 
        * object passed back by the event utility (YAHOO.util.Event).
        */        
        _onFormSubmit: function (p_oEvent) {
        
        	this.createHiddenFields();
        
        },
        
        
        /**
        * @method _onDocumentMouseDown
        * @description "mousedown" event handler for the document.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onDocumentMouseDown: function (p_oEvent) {

            var oTarget = Event.getTarget(p_oEvent),
                oButtonElement = this.get("element"),
                oMenuElement = this._menu.element;
           
        
            if (oTarget != oButtonElement && 
                !Dom.isAncestor(oButtonElement, oTarget) && 
                oTarget != oMenuElement && 
                !Dom.isAncestor(oMenuElement, oTarget)) {
        
                this._hideMenu();
        
                Event.removeListener(document, "mousedown", 
                    this._onDocumentMouseDown);    
            
            }
        
        },
        
        
        /**
        * @method _onOption
        * @description "option" event handler for the button.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onOption: function (p_oEvent) {
        
            if (this.hasClass("yui-split-button-activeoption")) {
        
                this._hideMenu();
        
                this._bOptionPressed = false;
        
            }
            else {
        
                this._showMenu(p_oEvent);    
        
                this._bOptionPressed = true;
        
            }
        
        },
        
        
        /**
        * @method _onMenuShow
        * @description "show" event handler for the button's menu.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        */
        _onMenuShow: function (p_sType) {
        
            Event.on(document, "mousedown", this._onDocumentMouseDown, 
                null, this);
        
            var sTitle,
                sState;
            
            if (this.get("type") == "split") {
        
                sTitle = this.SPLITBUTTON_OPTION_VISIBLE_TITLE;
                sState = "activeoption";
            
            }
            else {
        
                sTitle = this.MENUBUTTON_MENU_VISIBLE_TITLE;        
                sState = "active";
        
            }
        
            this.addStateCSSClasses(sState);
            this.set("title", sTitle);
        
        },
        
        
        /**
        * @method _onMenuHide
        * @description "hide" event handler for the button's menu.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        */
        _onMenuHide: function (p_sType) {
            
            var oMenu = this._menu,
                sTitle,
                sState;
        
            
            if (this.get("type") == "split") {
        
                sTitle = this.SPLITBUTTON_DEFAULT_TITLE;
                sState = "activeoption";
        
            }
            else {
        
                sTitle = this.MENUBUTTON_DEFAULT_TITLE;        
                sState = "active";
            }
        
        
            this.removeStateCSSClasses(sState);
            this.set("title", sTitle);
        
        
            if (this.get("type") == "split") {
        
                this._bOptionPressed = false;
            
            }
        
        },
        
        
        /**
        * @method _onMenuKeyDown
        * @description "keydown" event handler for the button's menu.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        _onMenuKeyDown: function (p_sType, p_aArgs) {
        
            var oEvent = p_aArgs[0];
        
            if (Event.getCharCode(oEvent) == 27) {
        
                this.focus();
        
                if (this.get("type") == "split") {
                
                    this._bOptionPressed = false;
                
                }
        
            }
        
        },
        
        
        /**
        * @method _onMenuRender
        * @description "render" event handler for the button's menu.
        * @private
        * @param {String} p_sType String representing the name of the  
        * event thatwas fired.
        */
        _onMenuRender: function (p_sType) {
        
            var oButtonElement = this.get("element"),
                oButtonParent = oButtonElement.parentNode,
				oMenu = this._menu,
                oMenuElement = oMenu.element,
				oSrcElement = oMenu.srcElement;
        
        
            if (oButtonParent != oMenuElement.parentNode) {
        
                oButtonParent.appendChild(oMenuElement);
            
            }

			this._renderedMenu = true;

			//	If the user has designated an <option> of the Menu's source 
			//	<select> element to be selected, sync the selectedIndex with 
			//	the "selectedMenuItem" Attribute.

			if (oSrcElement && 
					oSrcElement.nodeName.toLowerCase() === "select" && 
					oSrcElement.value) {
				
				this.set("selectedMenuItem", 
							oMenu.getItem(oSrcElement.selectedIndex));
				
			}

        },

        
        
        /**
        * @method _onMenuClick
        * @description "click" event handler for the button's menu.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        _onMenuClick: function (p_sType, p_aArgs) {

            var oItem = p_aArgs[1],
                oSrcElement;
        
            if (oItem) {
        
				this.set("selectedMenuItem", oItem);

                oSrcElement = this.get("srcelement");
            
                if (oSrcElement && oSrcElement.type == "submit") {
        
                    this.submitForm();
            
                }
            
                this._hideMenu();
            
            }
        
        },


        /**
        * @method _onSelectedMenuItemChange
        * @description "selectedMenuItemChange" event handler for the Button's
		* "selectedMenuItem" attribute.
        * @param {Event} event Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
		_onSelectedMenuItemChange: function (event) {
		
			var oSelected = event.prevValue,
				oItem = event.newValue;

			if (oSelected) {
				Dom.removeClass(oSelected.element, "yui-button-selectedmenuitem");
			}
			
			if (oItem) {
				Dom.addClass(oItem.element, "yui-button-selectedmenuitem");
			}
			
		},        
        
        
        // Public methods
        
        
        /**
        * @method createButtonElement
        * @description Creates the button's HTML elements.
        * @param {String} p_sType String indicating the type of element 
        * to create.
        * @return {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-58190037">HTMLElement</a>}
        */
        createButtonElement: function (p_sType) {
        
            var sNodeName = this.NODE_NAME,
                oElement = document.createElement(sNodeName);
        
            oElement.innerHTML =  "<" + sNodeName + " class=\"first-child\">" + 
                (p_sType == "link" ? "<a></a>" : 
                "<button type=\"button\"></button>") + "</" + sNodeName + ">";
        
            return oElement;
        
        },

        
        /**
        * @method addStateCSSClasses
        * @description Appends state-specific CSS classes to the button's root 
        * DOM element.
        */
        addStateCSSClasses: function (p_sState) {
        
            var sType = this.get("type");
        
            if (Lang.isString(p_sState)) {
        
                if (p_sState != "activeoption" && p_sState != "hoveroption") {
        
                    this.addClass(this.CSS_CLASS_NAME + ("-" + p_sState));
        
                }
        
                this.addClass("yui-" + sType + ("-button-" + p_sState));
            
            }
        
        },
        
        
        /**
        * @method removeStateCSSClasses
        * @description Removes state-specific CSS classes to the button's root 
        * DOM element.
        */
        removeStateCSSClasses: function (p_sState) {
        
            var sType = this.get("type");
        
            if (Lang.isString(p_sState)) {
        
                this.removeClass(this.CSS_CLASS_NAME + ("-" + p_sState));
                this.removeClass("yui-" + sType + ("-button-" + p_sState));
            
            }
        
        },
        
        
        /**
        * @method createHiddenFields
        * @description Creates the button's hidden form field and appends it 
        * to its parent form.
        * @return {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-6043025">HTMLInputElement</a>|Array}
        */
        createHiddenFields: function () {
        
            this.removeHiddenFields();
        
            var oForm = this.getForm(),
                oButtonField,
                sType,
                bCheckable,
                oMenu,
                oMenuItem,
                sButtonName,
                oValue,
                oMenuField,
                oReturnVal,
				sMenuFieldName,
				oMenuSrcElement,
				bMenuSrcElementIsSelect = false;
        
        
            if (oForm && !this.get("disabled")) {
        
                sType = this.get("type");
                bCheckable = (sType == "checkbox" || sType == "radio");
        
        
                if ((bCheckable && this.get("checked")) || (m_oSubmitTrigger == this)) {
                
        
                    oButtonField = createInputElement((bCheckable ? sType : "hidden"),
                                    this.get("name"), this.get("value"), this.get("checked"));
            
            
                    if (oButtonField) {
            
                        if (bCheckable) {
            
                            oButtonField.style.display = "none";
            
                        }
            
                        oForm.appendChild(oButtonField);
            
                    }
        
                }
                    
        
                oMenu = this._menu;
            
            
                if (Menu && oMenu && (oMenu instanceof Menu)) {
        
        
                    oMenuItem = this.get("selectedMenuItem");
					oMenuSrcElement = oMenu.srcElement;
					bMenuSrcElementIsSelect = (oMenuSrcElement && 
												oMenuSrcElement.nodeName.toUpperCase() == "SELECT");

                    if (oMenuItem) {

						oValue = (oMenuItem.value === null || oMenuItem.value === "") ? 
									oMenuItem.cfg.getProperty("text") : oMenuItem.value;

						sButtonName = this.get("name");


						if (bMenuSrcElementIsSelect) {
						
							sMenuFieldName = oMenuSrcElement.name;
						
						}
						else if (sButtonName) {

							sMenuFieldName = (sButtonName + "_options");
						
						}
						

						if (oValue && sMenuFieldName) {
		
							oMenuField = createInputElement("hidden", sMenuFieldName, oValue);
							oForm.appendChild(oMenuField);
		
						}
                    
                    }
                    else if (bMenuSrcElementIsSelect) {
					
						oForm.appendChild(oMenuSrcElement);
                    
                    }
        
                }
            
            
                if (oButtonField && oMenuField) {
        
                    this._hiddenFields = [oButtonField, oMenuField];
        
                }
                else if (!oButtonField && oMenuField) {
        
                    this._hiddenFields = oMenuField;
                
                }
                else if (oButtonField && !oMenuField) {
        
                    this._hiddenFields = oButtonField;
                
                }
        
        		oReturnVal = this._hiddenFields;
        
            }

			return oReturnVal;
        
        },
        
        
        /**
        * @method removeHiddenFields
        * @description Removes the button's hidden form field(s) from its 
        * parent form.
        */
        removeHiddenFields: function () {
        
            var oField = this._hiddenFields,
                nFields,
                i;
        
            function removeChild(p_oElement) {
        
                if (Dom.inDocument(p_oElement)) {
        
                    p_oElement.parentNode.removeChild(p_oElement);
                
                }
                
            }
            
        
            if (oField) {
        
                if (Lang.isArray(oField)) {
        
                    nFields = oField.length;
                    
                    if (nFields > 0) {
                    
                        i = nFields - 1;
                        
                        do {
        
                            removeChild(oField[i]);
        
                        }
                        while (i--);
                    
                    }
                
                }
                else {
        
                    removeChild(oField);
        
                }
        
                this._hiddenFields = null;
            
            }
        
        },
        
        
        /**
        * @method submitForm
        * @description Submits the form to which the button belongs.  Returns  
        * true if the form was submitted successfully, false if the submission 
        * was cancelled.
        * @protected
        * @return {Boolean}
        */
        submitForm: function () {
        
            var oForm = this.getForm(),
        
                oSrcElement = this.get("srcelement"),
        
                /*
                    Boolean indicating if the event fired successfully 
                    (was not cancelled by any handlers)
                */
        
                bSubmitForm = false,
                
                oEvent;
        
        
            if (oForm) {
        
                if (this.get("type") == "submit" || (oSrcElement && oSrcElement.type == "submit")) {
        
                    m_oSubmitTrigger = this;
                    
                }
        
        
                if (UA.ie) {
        
                    bSubmitForm = oForm.fireEvent("onsubmit");
        
                }
                else {  // Gecko, Opera, and Safari
        
                    oEvent = document.createEvent("HTMLEvents");
                    oEvent.initEvent("submit", true, true);
        
                    bSubmitForm = oForm.dispatchEvent(oEvent);
        
                }
        
        
                /*
                    In IE and Safari, dispatching a "submit" event to a form 
                    WILL cause the form's "submit" event to fire, but WILL NOT 
                    submit the form.  Therefore, we need to call the "submit" 
                    method as well.
                */
              
                if ((UA.ie || UA.webkit) && bSubmitForm) {
        
                    oForm.submit();
                
                }
            
            }
        
            return bSubmitForm;
            
        },
        
        
        /**
        * @method init
        * @description The Button class's initialization method.
        * @param {String} p_oElement String specifying the id attribute of the 
        * <code>&#60;input&#62;</code>, <code>&#60;button&#62;</code>,
        * <code>&#60;a&#62;</code>, or <code>&#60;span&#62;</code> element to 
        * be used to create the button.
        * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-6043025">HTMLInputElement</a>|<a href="http://
        * www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.html
        * #ID-34812697">HTMLButtonElement</a>|<a href="http://www.w3.org/TR
        * /2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-33759296">
        * HTMLElement</a>} p_oElement Object reference for the 
        * <code>&#60;input&#62;</code>, <code>&#60;button&#62;</code>, 
        * <code>&#60;a&#62;</code>, or <code>&#60;span&#62;</code> element to be 
        * used to create the button.
        * @param {Object} p_oElement Object literal specifying a set of 
        * configuration attributes used to create the button.
        * @param {Object} p_oAttributes Optional. Object literal specifying a 
        * set of configuration attributes used to create the button.
        */
        init: function (p_oElement, p_oAttributes) {
        
            var sNodeName = p_oAttributes.type == "link" ? "a" : "button",
                oSrcElement = p_oAttributes.srcelement,
                oButton = p_oElement.getElementsByTagName(sNodeName)[0],
                oInput;


            if (!oButton) {

                oInput = p_oElement.getElementsByTagName("input")[0];


                if (oInput) {

                    oButton = document.createElement("button");
                    oButton.setAttribute("type", "button");

                    oInput.parentNode.replaceChild(oButton, oInput);
                
                }

            }

            this._button = oButton;

            /*
				Capture if the button has a value for the title attribute.  If so, we won't 
				override it for type of "checkbox" or "radio".
            */
            
            this._hasDefaultTitle = (p_oAttributes.title && p_oAttributes.title.length > 0);

            YAHOO.widget.Button.superclass.init.call(this, p_oElement, p_oAttributes);


			var sId = this.get("id"),
				sButtonId = sId + "-button";


        	oButton.id = sButtonId;


			var aLabels,
				oLabel;


        	var hasLabel = function (element) {
        	
				return (element.htmlFor === sId);

        	};


			var setLabel = function () {

				oLabel.setAttribute((UA.ie ? "htmlFor" : "for"), sButtonId);
			
			};


			if (oSrcElement && this.get("type") != "link") {

				aLabels = Dom.getElementsBy(hasLabel, "label");

				if (Lang.isArray(aLabels) && aLabels.length > 0) {
				
					oLabel = aLabels[0];
				
				}

			}
        

            m_oButtons[sId] = this;
        

            this.addClass(this.CSS_CLASS_NAME);
            this.addClass("yui-" + this.get("type") + "-button");
        
            Event.on(this._button, "focus", this._onFocus, null, this);
            this.on("mouseover", this._onMouseOver);
			this.on("mousedown", this._onMouseDown);
			this.on("mouseup", this._onMouseUp);
            this.on("click", this._onClick);

			//	Need to reset the value of the "onclick" Attribute so that any
			//	handlers registered via the "onclick" Attribute are fired after 
			//	Button's default "_onClick" listener.

			var fnOnClick = this.get("onclick");

			this.set("onclick", null);
			this.set("onclick", fnOnClick);

            this.on("dblclick", this._onDblClick);

            if (oLabel) {
            
				this.on("appendTo", setLabel);     
            
            }
            
            this.on("appendTo", this._onAppendTo);
       
        

            var oContainer = this.get("container"),
                oElement = this.get("element"),
                bElInDoc = Dom.inDocument(oElement),
                oParentNode;


            if (oContainer) {
        
                if (oSrcElement && oSrcElement != oElement) {
                
                    oParentNode = oSrcElement.parentNode;

                    if (oParentNode) {
                    
                        oParentNode.removeChild(oSrcElement);
                    
                    }

                }
        
                if (Lang.isString(oContainer)) {
        
                    Event.onContentReady(oContainer, this.appendTo, oContainer, this);
        
                }
                else {
        
        			this.on("init", function () {
        			
        				Lang.later(0, this, this.appendTo, oContainer);
        			
        			});
        
                }
        
            }
            else if (!bElInDoc && oSrcElement && oSrcElement != oElement) {

                oParentNode = oSrcElement.parentNode;
        
                if (oParentNode) {
        
                    this.fireEvent("beforeAppendTo", {
                        type: "beforeAppendTo",
                        target: oParentNode
                    });
            
                    oParentNode.replaceChild(oElement, oSrcElement);
            
                    this.fireEvent("appendTo", {
                        type: "appendTo",
                        target: oParentNode
                    });
                
                }
        
            }
            else if (this.get("type") != "link" && bElInDoc && oSrcElement && 
                oSrcElement == oElement) {
        
                this._addListenersToForm();
        
            }
        
        

			this.fireEvent("init", {
				type: "init",
				target: this
			});        
        
        },
        
        
        /**
        * @method initAttributes
        * @description Initializes all of the configuration attributes used to  
        * create the button.
        * @param {Object} p_oAttributes Object literal specifying a set of 
        * configuration attributes used to create the button.
        */
        initAttributes: function (p_oAttributes) {
        
            var oAttributes = p_oAttributes || {};
        
            YAHOO.widget.Button.superclass.initAttributes.call(this, 
                oAttributes);
        
        
            /**
            * @attribute type
            * @description String specifying the button's type.  Possible 
            * values are: "push," "link," "submit," "reset," "checkbox," 
            * "radio," "menu," and "split."
            * @default "push"
            * @type String
			* @writeonce
            */
            this.setAttributeConfig("type", {
        
                value: (oAttributes.type || "push"),
                validator: Lang.isString,
                writeOnce: true,
                method: this._setType

            });
        
        
            /**
            * @attribute label
            * @description String specifying the button's text label 
            * or innerHTML.
            * @default null
            * @type String
            */
            this.setAttributeConfig("label", {
        
                value: oAttributes.label,
                validator: Lang.isString,
                method: this._setLabel
        
            });
        
        
            /**
            * @attribute value
            * @description Object specifying the value for the button.
            * @default null
            * @type Object
            */
            this.setAttributeConfig("value", {
        
                value: oAttributes.value
        
            });
        
        
            /**
            * @attribute name
            * @description String specifying the name for the button.
            * @default null
            * @type String
            */
            this.setAttributeConfig("name", {
        
                value: oAttributes.name,
                validator: Lang.isString
        
            });
        
        
            /**
            * @attribute tabindex
            * @description Number specifying the tabindex for the button.
            * @default null
            * @type Number
            */
            this.setAttributeConfig("tabindex", {
        
                value: oAttributes.tabindex,
                validator: Lang.isNumber,
                method: this._setTabIndex
        
            });
        
        
            /**
            * @attribute title
            * @description String specifying the title for the button.
            * @default null
            * @type String
            */
            this.configureAttribute("title", {
        
                value: oAttributes.title,
                validator: Lang.isString,
                method: this._setTitle
        
            });
        
        
            /**
            * @attribute disabled
            * @description Boolean indicating if the button should be disabled.  
            * (Disabled buttons are dimmed and will not respond to user input 
            * or fire events.  Does not apply to button's of type "link.")
            * @default false
            * @type Boolean
            */
            this.setAttributeConfig("disabled", {
        
                value: (oAttributes.disabled || false),
                validator: Lang.isBoolean,
                method: this._setDisabled
        
            });
        
        
            /**
            * @attribute href
            * @description String specifying the href for the button.  Applies
            * only to buttons of type "link."
            * @type String
            */
            this.setAttributeConfig("href", {
        
                value: oAttributes.href,
                validator: Lang.isString,
                method: this._setHref
        
            });
        
        
            /**
            * @attribute target
            * @description String specifying the target for the button.  
            * Applies only to buttons of type "link."
            * @type String
            */
            this.setAttributeConfig("target", {
        
                value: oAttributes.target,
                validator: Lang.isString,
                method: this._setTarget
        
            });
        
        
            /**
            * @attribute checked
            * @description Boolean indicating if the button is checked. 
            * Applies only to buttons of type "radio" and "checkbox."
            * @default false
            * @type Boolean
            */
            this.setAttributeConfig("checked", {
        
                value: (oAttributes.checked || false),
                validator: Lang.isBoolean,
                method: this._setChecked
        
            });
        
        
            /**
            * @attribute container
            * @description HTML element reference or string specifying the id 
            * attribute of the HTML element that the button's markup should be 
            * rendered into.
            * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
            * level-one-html.html#ID-58190037">HTMLElement</a>|String
            * @default null
			* @writeonce
            */
            this.setAttributeConfig("container", {
        
                value: oAttributes.container,
                writeOnce: true
        
            });
        
        
            /**
            * @attribute srcelement
            * @description Object reference to the HTML element (either 
            * <code>&#60;input&#62;</code> or <code>&#60;span&#62;</code>) 
            * used to create the button.
            * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
            * level-one-html.html#ID-58190037">HTMLElement</a>|String
            * @default null
			* @writeonce
            */
            this.setAttributeConfig("srcelement", {
        
                value: oAttributes.srcelement,
                writeOnce: true
        
            });
        
        
            /**
            * @attribute menu
            * @description Object specifying the menu for the button.  
            * The value can be one of the following:
            * <ul>
            * <li>Object specifying a <a href="YAHOO.widget.Menu.html">
            * YAHOO.widget.Menu</a> instance.</li>
            * <li>Object specifying a <a href="YAHOO.widget.Overlay.html">
            * YAHOO.widget.Overlay</a> instance.</li>
            * <li>String specifying the id attribute of the <code>&#60;div&#62;
            * </code> element used to create the menu.  By default the menu 
            * will be created as an instance of 
            * <a href="YAHOO.widget.Overlay.html">YAHOO.widget.Overlay</a>.  
            * If the <a href="YAHOO.widget.Menu.html#CSS_CLASS_NAME">
            * default CSS class name for YAHOO.widget.Menu</a> is applied to 
            * the <code>&#60;div&#62;</code> element, it will be created as an
            * instance of <a href="YAHOO.widget.Menu.html">YAHOO.widget.Menu
            * </a>.</li><li>String specifying the id attribute of the 
            * <code>&#60;select&#62;</code> element used to create the menu.
            * </li><li>Object specifying the <code>&#60;div&#62;</code> element
            * used to create the menu.</li>
            * <li>Object specifying the <code>&#60;select&#62;</code> element
            * used to create the menu.</li>
            * <li>Array of object literals, each representing a set of 
            * <a href="YAHOO.widget.MenuItem.html">YAHOO.widget.MenuItem</a> 
            * configuration attributes.</li>
            * <li>Array of strings representing the text labels for each menu 
            * item in the menu.</li>
            * </ul>
            * @type <a href="YAHOO.widget.Menu.html">YAHOO.widget.Menu</a>|<a 
            * href="YAHOO.widget.Overlay.html">YAHOO.widget.Overlay</a>|<a 
            * href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
            * one-html.html#ID-58190037">HTMLElement</a>|String|Array
            * @default null
			* @writeonce
            */
            this.setAttributeConfig("menu", {
        
                value: null,
                method: this._setMenu,
                writeOnce: true
            
            });
        
        
            /**
            * @attribute lazyloadmenu
            * @description Boolean indicating the value to set for the 
            * <a href="YAHOO.widget.Menu.html#lazyLoad">"lazyload"</a>
            * configuration property of the button's menu.  Setting 
            * "lazyloadmenu" to <code>true </code> will defer rendering of 
            * the button's menu until the first time it is made visible.  
            * If "lazyloadmenu" is set to <code>false</code>, the button's 
            * menu will be rendered immediately if the button is in the 
            * document, or in response to the button's "appendTo" event if 
            * the button is not yet in the document.  In either case, the 
            * menu is rendered into the button's parent HTML element.  
            * <em>This attribute does not apply if a 
            * <a href="YAHOO.widget.Menu.html">YAHOO.widget.Menu</a> or 
            * <a href="YAHOO.widget.Overlay.html">YAHOO.widget.Overlay</a> 
            * instance is passed as the value of the button's "menu" 
            * configuration attribute. <a href="YAHOO.widget.Menu.html">
            * YAHOO.widget.Menu</a> or <a href="YAHOO.widget.Overlay.html">
            * YAHOO.widget.Overlay</a> instances should be rendered before 
            * being set as the value for the "menu" configuration 
            * attribute.</em>
            * @default true
            * @type Boolean
			* @writeonce
            */
            this.setAttributeConfig("lazyloadmenu", {
        
                value: (oAttributes.lazyloadmenu === false ? false : true),
                validator: Lang.isBoolean,
                writeOnce: true
        
            });


            /**
            * @attribute menuclassname
            * @description String representing the CSS class name to be 
            * applied to the root element of the button's menu.
            * @type String
            * @default "yui-button-menu"
			* @writeonce
            */
            this.setAttributeConfig("menuclassname", {
        
                value: (oAttributes.menuclassname || "yui-button-menu"),
                validator: Lang.isString,
                method: this._setMenuClassName,
                writeOnce: true
        
            });        


			/**
			* @attribute menuminscrollheight
			* @description Number defining the minimum threshold for the "menumaxheight" 
			* configuration attribute.  When set this attribute is automatically applied 
			* to all submenus.
			* @default 90
			* @type Number
			*/
            this.setAttributeConfig("menuminscrollheight", {
        
                value: (oAttributes.menuminscrollheight || 90),
                validator: Lang.isNumber
        
            });


            /**
            * @attribute menumaxheight
			* @description Number defining the maximum height (in pixels) for a menu's 
			* body element (<code>&#60;div class="bd"&#60;</code>).  Once a menu's body 
			* exceeds this height, the contents of the body are scrolled to maintain 
			* this value.  This value cannot be set lower than the value of the 
			* "minscrollheight" configuration property.
            * @type Number
            * @default 0
            */
            this.setAttributeConfig("menumaxheight", {
        
                value: (oAttributes.menumaxheight || 0),
                validator: Lang.isNumber
        
            });


            /**
            * @attribute menualignment
			* @description Array defining how the Button's Menu is aligned to the Button.  
            * The default value of ["tl", "bl"] aligns the Menu's top left corner to the Button's 
            * bottom left corner.
            * @type Array
            * @default ["tl", "bl"]
            */
            this.setAttributeConfig("menualignment", {
        
                value: (oAttributes.menualignment || ["tl", "bl"]),
                validator: Lang.isArray
        
            });
            

            /**
            * @attribute selectedMenuItem
            * @description Object representing the item in the button's menu 
            * that is currently selected.
            * @type Number
            * @default null
            */
            this.setAttributeConfig("selectedMenuItem", {
        
                value: null
        
            });
        
        
            /**
            * @attribute onclick
            * @description Object literal representing the code to be executed  
            * when the button is clicked.  Format:<br> <code> {<br> 
            * <strong>fn:</strong> Function,   &#47;&#47; The handler to call 
            * when the event fires.<br> <strong>obj:</strong> Object, 
            * &#47;&#47; An object to pass back to the handler.<br> 
            * <strong>scope:</strong> Object &#47;&#47;  The object to use 
            * for the scope of the handler.<br> } </code>
            * @type Object
            * @default null
            */
            this.setAttributeConfig("onclick", {
        
                value: oAttributes.onclick,
                method: this._setOnClick
            
            });


            /**
            * @attribute focusmenu
            * @description Boolean indicating whether or not the button's menu 
            * should be focused when it is made visible.
            * @type Boolean
            * @default true
            */
            this.setAttributeConfig("focusmenu", {
        
                value: (oAttributes.focusmenu === false ? false : true),
                validator: Lang.isBoolean
        
            });

        },
        
        
        /**
        * @method focus
        * @description Causes the button to receive the focus and fires the 
        * button's "focus" event.
        */
        focus: function () {
        
            if (!this.get("disabled")) {
        
                this._button.focus();
            
            }
        
        },
        
        
        /**
        * @method blur
        * @description Causes the button to lose focus and fires the button's
        * "blur" event.
        */
        blur: function () {
        
            if (!this.get("disabled")) {
        
                this._button.blur();
        
            }
        
        },
        
        
        /**
        * @method hasFocus
        * @description Returns a boolean indicating whether or not the button 
        * has focus.
        * @return {Boolean}
        */
        hasFocus: function () {
        
            return (m_oFocusedButton == this);
        
        },
        
        
        /**
        * @method isActive
        * @description Returns a boolean indicating whether or not the button 
        * is active.
        * @return {Boolean}
        */
        isActive: function () {
        
            return this.hasClass(this.CSS_CLASS_NAME + "-active");
        
        },
        
        
        /**
        * @method getMenu
        * @description Returns a reference to the button's menu.
        * @return {<a href="YAHOO.widget.Overlay.html">
        * YAHOO.widget.Overlay</a>|<a 
        * href="YAHOO.widget.Menu.html">YAHOO.widget.Menu</a>}
        */
        getMenu: function () {
        
            return this._menu;
        
        },
        
        
        /**
        * @method getForm
        * @description Returns a reference to the button's parent form.
        * @return {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-
        * 20000929/level-one-html.html#ID-40002357">HTMLFormElement</a>}
        */
        getForm: function () {
        
        	var oButton = this._button,
        		oForm;
        
            if (oButton) {
            
            	oForm = oButton.form;
            
            }
        
        	return oForm;
        
        },
        
        
        /** 
        * @method getHiddenFields
        * @description Returns an <code>&#60;input&#62;</code> element or 
        * array of form elements used to represent the button when its parent 
        * form is submitted.  
        * @return {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-6043025">HTMLInputElement</a>|Array}
        */
        getHiddenFields: function () {
        
            return this._hiddenFields;
        
        },
        
        
        /**
        * @method destroy
        * @description Removes the button's element from its parent element and 
        * removes all event handlers.
        */
        destroy: function () {
        
        
            var oElement = this.get("element"),
                oParentNode = oElement.parentNode,
                oMenu = this._menu,
                aButtons;
        
            if (oMenu) {
        

                if (m_oOverlayManager && m_oOverlayManager.find(oMenu)) {

                    m_oOverlayManager.remove(oMenu);

                }
        
                oMenu.destroy();
        
            }
        
        
            Event.purgeElement(oElement);
            Event.purgeElement(this._button);
            Event.removeListener(document, "mouseup", this._onDocumentMouseUp);
            Event.removeListener(document, "keyup", this._onDocumentKeyUp);
            Event.removeListener(document, "mousedown", this._onDocumentMouseDown);
        
        
            var oForm = this.getForm();
            
            if (oForm) {
        
                Event.removeListener(oForm, "reset", this._onFormReset);
                Event.removeListener(oForm, "submit", this._onFormSubmit);
        
            }


            this.unsubscribeAll();

            if (oParentNode) {

                oParentNode.removeChild(oElement);
            
            }
        
        
            delete m_oButtons[this.get("id")];

            aButtons = Dom.getElementsByClassName(this.CSS_CLASS_NAME, 
                                this.NODE_NAME, oForm); 

            if (Lang.isArray(aButtons) && aButtons.length === 0) {

                Event.removeListener(oForm, "keypress", 
                        YAHOO.widget.Button.onFormKeyPress);

            }

        
        },
        
        
        fireEvent: function (p_sType , p_aArgs) {
        
			var sType = arguments[0];
		
			//  Disabled buttons should not respond to DOM events
		
			if (this.DOM_EVENTS[sType] && this.get("disabled")) {
		
				return false;
		
			}
		
			return YAHOO.widget.Button.superclass.fireEvent.apply(this, arguments);
        
        },
        
        
        /**
        * @method toString
        * @description Returns a string representing the button.
        * @return {String}
        */
        toString: function () {
        
            return ("Button " + this.get("id"));
        
        }
    
    });
    
    
    /**
    * @method YAHOO.widget.Button.onFormKeyPress
    * @description "keypress" event handler for the button's form.
    * @param {Event} p_oEvent Object representing the DOM event object passed 
    * back by the event utility (YAHOO.util.Event).
    */
    YAHOO.widget.Button.onFormKeyPress = function (p_oEvent) {
    
        var oTarget = Event.getTarget(p_oEvent),
            nCharCode = Event.getCharCode(p_oEvent),
            sNodeName = oTarget.nodeName && oTarget.nodeName.toUpperCase(),
            sType = oTarget.type,
    
            /*
                Boolean indicating if the form contains any enabled or 
                disabled YUI submit buttons
            */
    
            bFormContainsYUIButtons = false,
    
            oButton,
    
            oYUISubmitButton,   // The form's first, enabled YUI submit button
    
            /*
                 The form's first, enabled HTML submit button that precedes any 
                 YUI submit button
            */
    
            oPrecedingSubmitButton,
            
            oEvent; 
    
    
        function isSubmitButton(p_oElement) {
    
            var sId,
                oSrcElement;
    
            switch (p_oElement.nodeName.toUpperCase()) {
    
            case "INPUT":
            case "BUTTON":
            
                if (p_oElement.type == "submit" && !p_oElement.disabled) {
                    
                    if (!bFormContainsYUIButtons && !oPrecedingSubmitButton) {

                        oPrecedingSubmitButton = p_oElement;

                    }
                
                }

                break;
            

            default:
            
                sId = p_oElement.id;
    
                if (sId) {
    
                    oButton = m_oButtons[sId];
        
                    if (oButton) {

                        bFormContainsYUIButtons = true;
        
                        if (!oButton.get("disabled")) {

                            oSrcElement = oButton.get("srcelement");
    
                            if (!oYUISubmitButton && (oButton.get("type") == "submit" || 
                                (oSrcElement && oSrcElement.type == "submit"))) {

                                oYUISubmitButton = oButton;
                            
                            }
                        
                        }
                        
                    }
                
                }

                break;
    
            }
    
        }
    
    
        if (nCharCode == 13 && ((sNodeName == "INPUT" && (sType == "text" || 
            sType == "password" || sType == "checkbox" || sType == "radio" || 
            sType == "file")) || sNodeName == "SELECT")) {
    
            Dom.getElementsBy(isSubmitButton, "*", this);
    
    
            if (oPrecedingSubmitButton) {
    
                /*
                     Need to set focus to the first enabled submit button
                     to make sure that IE includes its name and value 
                     in the form's data set.
                */
    
                oPrecedingSubmitButton.focus();
            
            }
            else if (!oPrecedingSubmitButton && oYUISubmitButton) {
    
				/*
					Need to call "preventDefault" to ensure that the form doesn't end up getting
					submitted twice.
				*/
    
    			Event.preventDefault(p_oEvent);


				if (UA.ie) {
				
					oYUISubmitButton.get("element").fireEvent("onclick");
				
				}
				else {

					oEvent = document.createEvent("HTMLEvents");
					oEvent.initEvent("click", true, true);
			

					if (UA.gecko < 1.9) {
					
						oYUISubmitButton.fireEvent("click", oEvent);
					
					}
					else {

						oYUISubmitButton.get("element").dispatchEvent(oEvent);
					
					}
  
                }

            }
            
        }
    
    };
    
    
    /**
    * @method YAHOO.widget.Button.addHiddenFieldsToForm
    * @description Searches the specified form and adds hidden fields for  
    * instances of YAHOO.widget.Button that are of type "radio," "checkbox," 
    * "menu," and "split."
    * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-40002357">HTMLFormElement</a>} p_oForm Object reference 
    * for the form to search.
    */
    YAHOO.widget.Button.addHiddenFieldsToForm = function (p_oForm) {
    
        var aButtons = Dom.getElementsByClassName(
                            YAHOO.widget.Button.prototype.CSS_CLASS_NAME, 
                            "*", 
                            p_oForm),
    
            nButtons = aButtons.length,
            oButton,
            sId,
            i;
    
        if (nButtons > 0) {
    
    
            for (i = 0; i < nButtons; i++) {
    
                sId = aButtons[i].id;
    
                if (sId) {
    
                    oButton = m_oButtons[sId];
        
                    if (oButton) {
           
                        oButton.createHiddenFields();
                        
                    }
                
                }
            
            }
    
        }
    
    };
    

    /**
    * @method YAHOO.widget.Button.getButton
    * @description Returns a button with the specified id.
    * @param {String} p_sId String specifying the id of the root node of the 
    * HTML element representing the button to be retrieved.
    * @return {YAHOO.widget.Button}
    */
    YAHOO.widget.Button.getButton = function (p_sId) {

		return m_oButtons[p_sId];

    };
    
    
    // Events
    
    
    /**
    * @event focus
    * @description Fires when the menu item receives focus.  Passes back a  
    * single object representing the original DOM event object passed back by 
    * the event utility (YAHOO.util.Event) when the event was fired.  See 
    * <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> 
    * for more information on listening for this event.
    * @type YAHOO.util.CustomEvent
    */
    
    
    /**
    * @event blur
    * @description Fires when the menu item loses the input focus.  Passes back  
    * a single object representing the original DOM event object passed back by 
    * the event utility (YAHOO.util.Event) when the event was fired.  See 
    * <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for  
    * more information on listening for this event.
    * @type YAHOO.util.CustomEvent
    */
    
    
    /**
    * @event option
    * @description Fires when the user invokes the button's option.  Passes 
    * back a single object representing the original DOM event (either 
    * "mousedown" or "keydown") that caused the "option" event to fire.  See 
    * <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> 
    * for more information on listening for this event.
    * @type YAHOO.util.CustomEvent
    */

})();
(function () {

    // Shorthard for utilities
    
    var Dom = YAHOO.util.Dom,
        Event = YAHOO.util.Event,
        Lang = YAHOO.lang,
        Button = YAHOO.widget.Button,  
    
        // Private collection of radio buttons
    
        m_oButtons = {};



    /**
    * The ButtonGroup class creates a set of buttons that are mutually 
    * exclusive; checking one button in the set will uncheck all others in the 
    * button group.
    * @param {String} p_oElement String specifying the id attribute of the 
    * <code>&#60;div&#62;</code> element of the button group.
    * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
    * level-one-html.html#ID-22445964">HTMLDivElement</a>} p_oElement Object 
    * specifying the <code>&#60;div&#62;</code> element of the button group.
    * @param {Object} p_oElement Object literal specifying a set of 
    * configuration attributes used to create the button group.
    * @param {Object} p_oAttributes Optional. Object literal specifying a set 
    * of configuration attributes used to create the button group.
    * @namespace YAHOO.widget
    * @class ButtonGroup
    * @constructor
    * @extends YAHOO.util.Element
    */
    YAHOO.widget.ButtonGroup = function (p_oElement, p_oAttributes) {
    
        var fnSuperClass = YAHOO.widget.ButtonGroup.superclass.constructor,
            sNodeName,
            oElement,
            sId;
    
        if (arguments.length == 1 && !Lang.isString(p_oElement) && 
            !p_oElement.nodeName) {
    
            if (!p_oElement.id) {
    
                sId = Dom.generateId();
    
                p_oElement.id = sId;
    
    
            }
    
    
    
            fnSuperClass.call(this, (this._createGroupElement()), p_oElement);
    
        }
        else if (Lang.isString(p_oElement)) {
    
            oElement = Dom.get(p_oElement);
    
            if (oElement) {
            
                if (oElement.nodeName.toUpperCase() == this.NODE_NAME) {
    
            
                    fnSuperClass.call(this, oElement, p_oAttributes);
    
                }
    
            }
        
        }
        else {
    
            sNodeName = p_oElement.nodeName.toUpperCase();
    
            if (sNodeName && sNodeName == this.NODE_NAME) {
        
                if (!p_oElement.id) {
        
                    p_oElement.id = Dom.generateId();
        
        
                }
        
        
                fnSuperClass.call(this, p_oElement, p_oAttributes);
    
            }
    
        }
    
    };
    
    
    YAHOO.extend(YAHOO.widget.ButtonGroup, YAHOO.util.Element, {
    
    
        // Protected properties
        
        
        /** 
        * @property _buttons
        * @description Array of buttons in the button group.
        * @default null
        * @protected
        * @type Array
        */
        _buttons: null,
        
        
        
        // Constants
        
        
        /**
        * @property NODE_NAME
        * @description The name of the tag to be used for the button 
        * group's element. 
        * @default "DIV"
        * @final
        * @type String
        */
        NODE_NAME: "DIV",
        
        
        /**
        * @property CSS_CLASS_NAME
        * @description String representing the CSS class(es) to be applied  
        * to the button group's element.
        * @default "yui-buttongroup"
        * @final
        * @type String
        */
        CSS_CLASS_NAME: "yui-buttongroup",
    
    
    
        // Protected methods
        
        
        /**
        * @method _createGroupElement
        * @description Creates the button group's element.
        * @protected
        * @return {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-22445964">HTMLDivElement</a>}
        */
        _createGroupElement: function () {
        
            var oElement = document.createElement(this.NODE_NAME);
        
            return oElement;
        
        },
        
        
        
        // Protected attribute setter methods
        
        
        /**
        * @method _setDisabled
        * @description Sets the value of the button groups's 
        * "disabled" attribute.
        * @protected
        * @param {Boolean} p_bDisabled Boolean indicating the value for
        * the button group's "disabled" attribute.
        */
        _setDisabled: function (p_bDisabled) {
        
            var nButtons = this.getCount(),
                i;
        
            if (nButtons > 0) {
        
                i = nButtons - 1;
                
                do {
        
                    this._buttons[i].set("disabled", p_bDisabled);
                
                }
                while (i--);
        
            }
        
        },
        
        
        
        // Protected event handlers
        
        
        /**
        * @method _onKeyDown
        * @description "keydown" event handler for the button group.
        * @protected
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        _onKeyDown: function (p_oEvent) {
        
            var oTarget = Event.getTarget(p_oEvent),
                nCharCode = Event.getCharCode(p_oEvent),
                sId = oTarget.parentNode.parentNode.id,
                oButton = m_oButtons[sId],
                nIndex = -1;
        
        
            if (nCharCode == 37 || nCharCode == 38) {
        
                nIndex = (oButton.index === 0) ? 
                            (this._buttons.length - 1) : (oButton.index - 1);
            
            }
            else if (nCharCode == 39 || nCharCode == 40) {
        
                nIndex = (oButton.index === (this._buttons.length - 1)) ? 
                            0 : (oButton.index + 1);
        
            }
        
        
            if (nIndex > -1) {
        
                this.check(nIndex);
                this.getButton(nIndex).focus();
            
            }        
        
        },
        
        
        /**
        * @method _onAppendTo
        * @description "appendTo" event handler for the button group.
        * @protected
        * @param {Event} p_oEvent Object representing the event that was fired.
        */
        _onAppendTo: function (p_oEvent) {
        
            var aButtons = this._buttons,
                nButtons = aButtons.length,
                i;
        
            for (i = 0; i < nButtons; i++) {
        
                aButtons[i].appendTo(this.get("element"));
        
            }
        
        },
        
        
        /**
        * @method _onButtonCheckedChange
        * @description "checkedChange" event handler for each button in the 
        * button group.
        * @protected
        * @param {Event} p_oEvent Object representing the event that was fired.
        * @param {<a href="YAHOO.widget.Button.html">YAHOO.widget.Button</a>}  
        * p_oButton Object representing the button that fired the event.
        */
        _onButtonCheckedChange: function (p_oEvent, p_oButton) {
        
            var bChecked = p_oEvent.newValue,
                oCheckedButton = this.get("checkedButton");
        
            if (bChecked && oCheckedButton != p_oButton) {
        
                if (oCheckedButton) {
        
                    oCheckedButton.set("checked", false, true);
        
                }
        
                this.set("checkedButton", p_oButton);
                this.set("value", p_oButton.get("value"));
        
            }
            else if (oCheckedButton && !oCheckedButton.set("checked")) {
        
                oCheckedButton.set("checked", true, true);
        
            }
           
        },
        
        
        
        // Public methods
        
        
        /**
        * @method init
        * @description The ButtonGroup class's initialization method.
        * @param {String} p_oElement String specifying the id attribute of the 
        * <code>&#60;div&#62;</code> element of the button group.
        * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-22445964">HTMLDivElement</a>} p_oElement Object 
        * specifying the <code>&#60;div&#62;</code> element of the button group.
        * @param {Object} p_oElement Object literal specifying a set of  
        * configuration attributes used to create the button group.
        * @param {Object} p_oAttributes Optional. Object literal specifying a
        * set of configuration attributes used to create the button group.
        */
        init: function (p_oElement, p_oAttributes) {
        
            this._buttons = [];
        
            YAHOO.widget.ButtonGroup.superclass.init.call(this, p_oElement, 
                    p_oAttributes);
        
            this.addClass(this.CSS_CLASS_NAME);
        
        
            var aButtons = this.getElementsByClassName("yui-radio-button");
        
        
            if (aButtons.length > 0) {
        
        
                this.addButtons(aButtons);
        
            }
        
        
        
            function isRadioButton(p_oElement) {
        
                return (p_oElement.type == "radio");
        
            }
        
            aButtons = 
                Dom.getElementsBy(isRadioButton, "input", this.get("element"));
        
        
            if (aButtons.length > 0) {
        
        
                this.addButtons(aButtons);
        
            }
        
            this.on("keydown", this._onKeyDown);
            this.on("appendTo", this._onAppendTo);
        

            var oContainer = this.get("container");

            if (oContainer) {
        
                if (Lang.isString(oContainer)) {
        
                    Event.onContentReady(oContainer, function () {
        
                        this.appendTo(oContainer);            
                    
                    }, null, this);
        
                }
                else {
        
                    this.appendTo(oContainer);
        
                }
        
            }
        
        
        
        },
        
        
        /**
        * @method initAttributes
        * @description Initializes all of the configuration attributes used to  
        * create the button group.
        * @param {Object} p_oAttributes Object literal specifying a set of 
        * configuration attributes used to create the button group.
        */
        initAttributes: function (p_oAttributes) {
        
            var oAttributes = p_oAttributes || {};
        
            YAHOO.widget.ButtonGroup.superclass.initAttributes.call(
                this, oAttributes);
        
        
            /**
            * @attribute name
            * @description String specifying the name for the button group.  
            * This name will be applied to each button in the button group.
            * @default null
            * @type String
            */
            this.setAttributeConfig("name", {
        
                value: oAttributes.name,
                validator: Lang.isString
        
            });
        
        
            /**
            * @attribute disabled
            * @description Boolean indicating if the button group should be 
            * disabled.  Disabling the button group will disable each button 
            * in the button group.  Disabled buttons are dimmed and will not 
            * respond to user input or fire events.
            * @default false
            * @type Boolean
            */
            this.setAttributeConfig("disabled", {
        
                value: (oAttributes.disabled || false),
                validator: Lang.isBoolean,
                method: this._setDisabled
        
            });
        
        
            /**
            * @attribute value
            * @description Object specifying the value for the button group.
            * @default null
            * @type Object
            */
            this.setAttributeConfig("value", {
        
                value: oAttributes.value
        
            });
        
        
            /**
            * @attribute container
            * @description HTML element reference or string specifying the id 
            * attribute of the HTML element that the button group's markup
            * should be rendered into.
            * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
            * level-one-html.html#ID-58190037">HTMLElement</a>|String
            * @default null
			* @writeonce
            */
            this.setAttributeConfig("container", {
        
                value: oAttributes.container,
                writeOnce: true
        
            });
        
        
            /**
            * @attribute checkedButton
            * @description Reference for the button in the button group that 
            * is checked.
            * @type {<a href="YAHOO.widget.Button.html">YAHOO.widget.Button</a>}
            * @default null
            */
            this.setAttributeConfig("checkedButton", {
        
                value: null
        
            });
        
        },
        
        
        /**
        * @method addButton
        * @description Adds the button to the button group.
        * @param {<a href="YAHOO.widget.Button.html">YAHOO.widget.Button</a>}  
        * p_oButton Object reference for the <a href="YAHOO.widget.Button.html">
        * YAHOO.widget.Button</a> instance to be added to the button group.
        * @param {String} p_oButton String specifying the id attribute of the 
        * <code>&#60;input&#62;</code> or <code>&#60;span&#62;</code> element 
        * to be used to create the button to be added to the button group.
        * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-6043025">HTMLInputElement</a>|<a href="
        * http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.html#
        * ID-33759296">HTMLElement</a>} p_oButton Object reference for the 
        * <code>&#60;input&#62;</code> or <code>&#60;span&#62;</code> element 
        * to be used to create the button to be added to the button group.
        * @param {Object} p_oButton Object literal specifying a set of 
        * <a href="YAHOO.widget.Button.html">YAHOO.widget.Button</a> 
        * configuration attributes used to configure the button to be added to 
        * the button group.
        * @return {<a href="YAHOO.widget.Button.html">YAHOO.widget.Button</a>} 
        */
        addButton: function (p_oButton) {
        
            var oButton,
                oButtonElement,
                oGroupElement,
                nIndex,
                sButtonName,
                sGroupName;
        
        
            if (p_oButton instanceof Button && 
                p_oButton.get("type") == "radio") {
        
                oButton = p_oButton;
        
            }
            else if (!Lang.isString(p_oButton) && !p_oButton.nodeName) {
        
                p_oButton.type = "radio";
        
                oButton = new Button(p_oButton);

            }
            else {
        
                oButton = new Button(p_oButton, { type: "radio" });
        
            }
        
        
            if (oButton) {
        
                nIndex = this._buttons.length;
                sButtonName = oButton.get("name");
                sGroupName = this.get("name");
        
                oButton.index = nIndex;
        
                this._buttons[nIndex] = oButton;
                m_oButtons[oButton.get("id")] = oButton;
        
        
                if (sButtonName != sGroupName) {
        
                    oButton.set("name", sGroupName);
                
                }
        
        
                if (this.get("disabled")) {
        
                    oButton.set("disabled", true);
        
                }
        
        
                if (oButton.get("checked")) {
        
                    this.set("checkedButton", oButton);
        
                }

                
                oButtonElement = oButton.get("element");
                oGroupElement = this.get("element");
                
                if (oButtonElement.parentNode != oGroupElement) {
                
                    oGroupElement.appendChild(oButtonElement);
                
                }
        
                
                oButton.on("checkedChange", 
                    this._onButtonCheckedChange, oButton, this);
        
        
            }

			return oButton;
        
        },
        
        
        /**
        * @method addButtons
        * @description Adds the array of buttons to the button group.
        * @param {Array} p_aButtons Array of <a href="YAHOO.widget.Button.html">
        * YAHOO.widget.Button</a> instances to be added 
        * to the button group.
        * @param {Array} p_aButtons Array of strings specifying the id 
        * attribute of the <code>&#60;input&#62;</code> or <code>&#60;span&#62;
        * </code> elements to be used to create the buttons to be added to the 
        * button group.
        * @param {Array} p_aButtons Array of object references for the 
        * <code>&#60;input&#62;</code> or <code>&#60;span&#62;</code> elements 
        * to be used to create the buttons to be added to the button group.
        * @param {Array} p_aButtons Array of object literals, each containing
        * a set of <a href="YAHOO.widget.Button.html">YAHOO.widget.Button</a>  
        * configuration attributes used to configure each button to be added 
        * to the button group.
        * @return {Array}
        */
        addButtons: function (p_aButtons) {
    
            var nButtons,
                oButton,
                aButtons,
                i;
        
            if (Lang.isArray(p_aButtons)) {
            
                nButtons = p_aButtons.length;
                aButtons = [];
        
                if (nButtons > 0) {
        
                    for (i = 0; i < nButtons; i++) {
        
                        oButton = this.addButton(p_aButtons[i]);
                        
                        if (oButton) {
        
                            aButtons[aButtons.length] = oButton;
        
                        }
                    
                    }
                
                }
        
            }

			return aButtons;
        
        },
        
        
        /**
        * @method removeButton
        * @description Removes the button at the specified index from the 
        * button group.
        * @param {Number} p_nIndex Number specifying the index of the button 
        * to be removed from the button group.
        */
        removeButton: function (p_nIndex) {
        
            var oButton = this.getButton(p_nIndex),
                nButtons,
                i;
            
            if (oButton) {
        
        
                this._buttons.splice(p_nIndex, 1);
                delete m_oButtons[oButton.get("id")];
        
                oButton.removeListener("checkedChange", 
                    this._onButtonCheckedChange);

                oButton.destroy();
        
        
                nButtons = this._buttons.length;
                
                if (nButtons > 0) {
        
                    i = this._buttons.length - 1;
                    
                    do {
        
                        this._buttons[i].index = i;
        
                    }
                    while (i--);
                
                }
        
        
            }
        
        },
        
        
        /**
        * @method getButton
        * @description Returns the button at the specified index.
        * @param {Number} p_nIndex The index of the button to retrieve from the 
        * button group.
        * @return {<a href="YAHOO.widget.Button.html">YAHOO.widget.Button</a>}
        */
        getButton: function (p_nIndex) {
        
            return this._buttons[p_nIndex];
        
        },
        
        
        /**
        * @method getButtons
        * @description Returns an array of the buttons in the button group.
        * @return {Array}
        */
        getButtons: function () {
        
            return this._buttons;
        
        },
        
        
        /**
        * @method getCount
        * @description Returns the number of buttons in the button group.
        * @return {Number}
        */
        getCount: function () {
        
            return this._buttons.length;
        
        },
        
        
        /**
        * @method focus
        * @description Sets focus to the button at the specified index.
        * @param {Number} p_nIndex Number indicating the index of the button 
        * to focus. 
        */
        focus: function (p_nIndex) {
        
            var oButton,
                nButtons,
                i;
        
            if (Lang.isNumber(p_nIndex)) {
        
                oButton = this._buttons[p_nIndex];
                
                if (oButton) {
        
                    oButton.focus();
        
                }
            
            }
            else {
        
                nButtons = this.getCount();
        
                for (i = 0; i < nButtons; i++) {
        
                    oButton = this._buttons[i];
        
                    if (!oButton.get("disabled")) {
        
                        oButton.focus();
                        break;
        
                    }
        
                }
        
            }
        
        },
        
        
        /**
        * @method check
        * @description Checks the button at the specified index.
        * @param {Number} p_nIndex Number indicating the index of the button 
        * to check. 
        */
        check: function (p_nIndex) {
        
            var oButton = this.getButton(p_nIndex);
            
            if (oButton) {
        
                oButton.set("checked", true);
            
            }
        
        },
        
        
        /**
        * @method destroy
        * @description Removes the button group's element from its parent 
        * element and removes all event handlers.
        */
        destroy: function () {
        
        
            var nButtons = this._buttons.length,
                oElement = this.get("element"),
                oParentNode = oElement.parentNode,
                i;
            
            if (nButtons > 0) {
        
                i = this._buttons.length - 1;
        
                do {
        
                    this._buttons[i].destroy();
        
                }
                while (i--);
            
            }
        
        
            Event.purgeElement(oElement);
            
        
            oParentNode.removeChild(oElement);
        
        },
        
        
        /**
        * @method toString
        * @description Returns a string representing the button group.
        * @return {String}
        */
        toString: function () {
        
            return ("ButtonGroup " + this.get("id"));
        
        }
    
    });

})();
YAHOO.register("button", YAHOO.widget.Button, {version: "2.7.0", build: "1796"});
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
(function () {

    /**
    * Config is a utility used within an Object to allow the implementer to
    * maintain a list of local configuration properties and listen for changes 
    * to those properties dynamically using CustomEvent. The initial values are 
    * also maintained so that the configuration can be reset at any given point 
    * to its initial state.
    * @namespace YAHOO.util
    * @class Config
    * @constructor
    * @param {Object} owner The owner Object to which this Config Object belongs
    */
    YAHOO.util.Config = function (owner) {

        if (owner) {
            this.init(owner);
        }


    };


    var Lang = YAHOO.lang,
        CustomEvent = YAHOO.util.CustomEvent,
        Config = YAHOO.util.Config;


    /**
     * Constant representing the CustomEvent type for the config changed event.
     * @property YAHOO.util.Config.CONFIG_CHANGED_EVENT
     * @private
     * @static
     * @final
     */
    Config.CONFIG_CHANGED_EVENT = "configChanged";
    
    /**
     * Constant representing the boolean type string
     * @property YAHOO.util.Config.BOOLEAN_TYPE
     * @private
     * @static
     * @final
     */
    Config.BOOLEAN_TYPE = "boolean";
    
    Config.prototype = {
     
        /**
        * Object reference to the owner of this Config Object
        * @property owner
        * @type Object
        */
        owner: null,
        
        /**
        * Boolean flag that specifies whether a queue is currently 
        * being executed
        * @property queueInProgress
        * @type Boolean
        */
        queueInProgress: false,
        
        /**
        * Maintains the local collection of configuration property objects and 
        * their specified values
        * @property config
        * @private
        * @type Object
        */ 
        config: null,
        
        /**
        * Maintains the local collection of configuration property objects as 
        * they were initially applied.
        * This object is used when resetting a property.
        * @property initialConfig
        * @private
        * @type Object
        */ 
        initialConfig: null,
        
        /**
        * Maintains the local, normalized CustomEvent queue
        * @property eventQueue
        * @private
        * @type Object
        */ 
        eventQueue: null,
        
        /**
        * Custom Event, notifying subscribers when Config properties are set 
        * (setProperty is called without the silent flag
        * @event configChangedEvent
        */
        configChangedEvent: null,
    
        /**
        * Initializes the configuration Object and all of its local members.
        * @method init
        * @param {Object} owner The owner Object to which this Config 
        * Object belongs
        */
        init: function (owner) {
    
            this.owner = owner;
    
            this.configChangedEvent = 
                this.createEvent(Config.CONFIG_CHANGED_EVENT);
    
            this.configChangedEvent.signature = CustomEvent.LIST;
            this.queueInProgress = false;
            this.config = {};
            this.initialConfig = {};
            this.eventQueue = [];
        
        },
        
        /**
        * Validates that the value passed in is a Boolean.
        * @method checkBoolean
        * @param {Object} val The value to validate
        * @return {Boolean} true, if the value is valid
        */ 
        checkBoolean: function (val) {
            return (typeof val == Config.BOOLEAN_TYPE);
        },
        
        /**
        * Validates that the value passed in is a number.
        * @method checkNumber
        * @param {Object} val The value to validate
        * @return {Boolean} true, if the value is valid
        */
        checkNumber: function (val) {
            return (!isNaN(val));
        },
        
        /**
        * Fires a configuration property event using the specified value. 
        * @method fireEvent
        * @private
        * @param {String} key The configuration property's name
        * @param {value} Object The value of the correct type for the property
        */ 
        fireEvent: function ( key, value ) {
            var property = this.config[key];
        
            if (property && property.event) {
                property.event.fire(value);
            } 
        },
        
        /**
        * Adds a property to the Config Object's private config hash.
        * @method addProperty
        * @param {String} key The configuration property's name
        * @param {Object} propertyObject The Object containing all of this 
        * property's arguments
        */
        addProperty: function ( key, propertyObject ) {
            key = key.toLowerCase();
        
            this.config[key] = propertyObject;
        
            propertyObject.event = this.createEvent(key, { scope: this.owner });
            propertyObject.event.signature = CustomEvent.LIST;
            
            
            propertyObject.key = key;
        
            if (propertyObject.handler) {
                propertyObject.event.subscribe(propertyObject.handler, 
                    this.owner);
            }
        
            this.setProperty(key, propertyObject.value, true);
            
            if (! propertyObject.suppressEvent) {
                this.queueProperty(key, propertyObject.value);
            }
            
        },
        
        /**
        * Returns a key-value configuration map of the values currently set in  
        * the Config Object.
        * @method getConfig
        * @return {Object} The current config, represented in a key-value map
        */
        getConfig: function () {
        
            var cfg = {},
                currCfg = this.config,
                prop,
                property;
                
            for (prop in currCfg) {
                if (Lang.hasOwnProperty(currCfg, prop)) {
                    property = currCfg[prop];
                    if (property && property.event) {
                        cfg[prop] = property.value;
                    }
                }
            }

            return cfg;
        },
        
        /**
        * Returns the value of specified property.
        * @method getProperty
        * @param {String} key The name of the property
        * @return {Object}  The value of the specified property
        */
        getProperty: function (key) {
            var property = this.config[key.toLowerCase()];
            if (property && property.event) {
                return property.value;
            } else {
                return undefined;
            }
        },
        
        /**
        * Resets the specified property's value to its initial value.
        * @method resetProperty
        * @param {String} key The name of the property
        * @return {Boolean} True is the property was reset, false if not
        */
        resetProperty: function (key) {
    
            key = key.toLowerCase();
        
            var property = this.config[key];
    
            if (property && property.event) {
    
                if (this.initialConfig[key] && 
                    !Lang.isUndefined(this.initialConfig[key])) {
    
                    this.setProperty(key, this.initialConfig[key]);

                    return true;
    
                }
    
            } else {
    
                return false;
            }
    
        },
        
        /**
        * Sets the value of a property. If the silent property is passed as 
        * true, the property's event will not be fired.
        * @method setProperty
        * @param {String} key The name of the property
        * @param {String} value The value to set the property to
        * @param {Boolean} silent Whether the value should be set silently, 
        * without firing the property event.
        * @return {Boolean} True, if the set was successful, false if it failed.
        */
        setProperty: function (key, value, silent) {
        
            var property;
        
            key = key.toLowerCase();
        
            if (this.queueInProgress && ! silent) {
                // Currently running through a queue... 
                this.queueProperty(key,value);
                return true;
    
            } else {
                property = this.config[key];
                if (property && property.event) {
                    if (property.validator && !property.validator(value)) {
                        return false;
                    } else {
                        property.value = value;
                        if (! silent) {
                            this.fireEvent(key, value);
                            this.configChangedEvent.fire([key, value]);
                        }
                        return true;
                    }
                } else {
                    return false;
                }
            }
        },
        
        /**
        * Sets the value of a property and queues its event to execute. If the 
        * event is already scheduled to execute, it is
        * moved from its current position to the end of the queue.
        * @method queueProperty
        * @param {String} key The name of the property
        * @param {String} value The value to set the property to
        * @return {Boolean}  true, if the set was successful, false if 
        * it failed.
        */ 
        queueProperty: function (key, value) {
        
            key = key.toLowerCase();
        
            var property = this.config[key],
                foundDuplicate = false,
                iLen,
                queueItem,
                queueItemKey,
                queueItemValue,
                sLen,
                supercedesCheck,
                qLen,
                queueItemCheck,
                queueItemCheckKey,
                queueItemCheckValue,
                i,
                s,
                q;
                                
            if (property && property.event) {
    
                if (!Lang.isUndefined(value) && property.validator && 
                    !property.validator(value)) { // validator
                    return false;
                } else {
        
                    if (!Lang.isUndefined(value)) {
                        property.value = value;
                    } else {
                        value = property.value;
                    }
        
                    foundDuplicate = false;
                    iLen = this.eventQueue.length;
        
                    for (i = 0; i < iLen; i++) {
                        queueItem = this.eventQueue[i];
        
                        if (queueItem) {
                            queueItemKey = queueItem[0];
                            queueItemValue = queueItem[1];

                            if (queueItemKey == key) {
    
                                /*
                                    found a dupe... push to end of queue, null 
                                    current item, and break
                                */
    
                                this.eventQueue[i] = null;
    
                                this.eventQueue.push(
                                    [key, (!Lang.isUndefined(value) ? 
                                    value : queueItemValue)]);
    
                                foundDuplicate = true;
                                break;
                            }
                        }
                    }
                    
                    // this is a refire, or a new property in the queue
    
                    if (! foundDuplicate && !Lang.isUndefined(value)) { 
                        this.eventQueue.push([key, value]);
                    }
                }
        
                if (property.supercedes) {

                    sLen = property.supercedes.length;

                    for (s = 0; s < sLen; s++) {

                        supercedesCheck = property.supercedes[s];
                        qLen = this.eventQueue.length;

                        for (q = 0; q < qLen; q++) {
                            queueItemCheck = this.eventQueue[q];

                            if (queueItemCheck) {
                                queueItemCheckKey = queueItemCheck[0];
                                queueItemCheckValue = queueItemCheck[1];

                                if (queueItemCheckKey == 
                                    supercedesCheck.toLowerCase() ) {

                                    this.eventQueue.push([queueItemCheckKey, 
                                        queueItemCheckValue]);

                                    this.eventQueue[q] = null;
                                    break;

                                }
                            }
                        }
                    }
                }


                return true;
            } else {
                return false;
            }
        },
        
        /**
        * Fires the event for a property using the property's current value.
        * @method refireEvent
        * @param {String} key The name of the property
        */
        refireEvent: function (key) {
    
            key = key.toLowerCase();
        
            var property = this.config[key];
    
            if (property && property.event && 
    
                !Lang.isUndefined(property.value)) {
    
                if (this.queueInProgress) {
    
                    this.queueProperty(key);
    
                } else {
    
                    this.fireEvent(key, property.value);
    
                }
    
            }
        },
        
        /**
        * Applies a key-value Object literal to the configuration, replacing  
        * any existing values, and queueing the property events.
        * Although the values will be set, fireQueue() must be called for their 
        * associated events to execute.
        * @method applyConfig
        * @param {Object} userConfig The configuration Object literal
        * @param {Boolean} init  When set to true, the initialConfig will 
        * be set to the userConfig passed in, so that calling a reset will 
        * reset the properties to the passed values.
        */
        applyConfig: function (userConfig, init) {
        
            var sKey,
                oConfig;

            if (init) {
                oConfig = {};
                for (sKey in userConfig) {
                    if (Lang.hasOwnProperty(userConfig, sKey)) {
                        oConfig[sKey.toLowerCase()] = userConfig[sKey];
                    }
                }
                this.initialConfig = oConfig;
            }

            for (sKey in userConfig) {
                if (Lang.hasOwnProperty(userConfig, sKey)) {
                    this.queueProperty(sKey, userConfig[sKey]);
                }
            }
        },
        
        /**
        * Refires the events for all configuration properties using their 
        * current values.
        * @method refresh
        */
        refresh: function () {

            var prop;

            for (prop in this.config) {
                if (Lang.hasOwnProperty(this.config, prop)) {
                    this.refireEvent(prop);
                }
            }
        },
        
        /**
        * Fires the normalized list of queued property change events
        * @method fireQueue
        */
        fireQueue: function () {
        
            var i, 
                queueItem,
                key,
                value,
                property;
        
            this.queueInProgress = true;
            for (i = 0;i < this.eventQueue.length; i++) {
                queueItem = this.eventQueue[i];
                if (queueItem) {
        
                    key = queueItem[0];
                    value = queueItem[1];
                    property = this.config[key];

                    property.value = value;

                    // Clear out queue entry, to avoid it being 
                    // re-added to the queue by any queueProperty/supercedes
                    // calls which are invoked during fireEvent
                    this.eventQueue[i] = null;

                    this.fireEvent(key,value);
                }
            }
            
            this.queueInProgress = false;
            this.eventQueue = [];
        },
        
        /**
        * Subscribes an external handler to the change event for any 
        * given property. 
        * @method subscribeToConfigEvent
        * @param {String} key The property name
        * @param {Function} handler The handler function to use subscribe to 
        * the property's event
        * @param {Object} obj The Object to use for scoping the event handler 
        * (see CustomEvent documentation)
        * @param {Boolean} override Optional. If true, will override "this"  
        * within the handler to map to the scope Object passed into the method.
        * @return {Boolean} True, if the subscription was successful, 
        * otherwise false.
        */ 
        subscribeToConfigEvent: function (key, handler, obj, override) {
    
            var property = this.config[key.toLowerCase()];
    
            if (property && property.event) {
                if (!Config.alreadySubscribed(property.event, handler, obj)) {
                    property.event.subscribe(handler, obj, override);
                }
                return true;
            } else {
                return false;
            }
    
        },
        
        /**
        * Unsubscribes an external handler from the change event for any 
        * given property. 
        * @method unsubscribeFromConfigEvent
        * @param {String} key The property name
        * @param {Function} handler The handler function to use subscribe to 
        * the property's event
        * @param {Object} obj The Object to use for scoping the event 
        * handler (see CustomEvent documentation)
        * @return {Boolean} True, if the unsubscription was successful, 
        * otherwise false.
        */
        unsubscribeFromConfigEvent: function (key, handler, obj) {
            var property = this.config[key.toLowerCase()];
            if (property && property.event) {
                return property.event.unsubscribe(handler, obj);
            } else {
                return false;
            }
        },
        
        /**
        * Returns a string representation of the Config object
        * @method toString
        * @return {String} The Config object in string format.
        */
        toString: function () {
            var output = "Config";
            if (this.owner) {
                output += " [" + this.owner.toString() + "]";
            }
            return output;
        },
        
        /**
        * Returns a string representation of the Config object's current 
        * CustomEvent queue
        * @method outputEventQueue
        * @return {String} The string list of CustomEvents currently queued 
        * for execution
        */
        outputEventQueue: function () {

            var output = "",
                queueItem,
                q,
                nQueue = this.eventQueue.length;
              
            for (q = 0; q < nQueue; q++) {
                queueItem = this.eventQueue[q];
                if (queueItem) {
                    output += queueItem[0] + "=" + queueItem[1] + ", ";
                }
            }
            return output;
        },

        /**
        * Sets all properties to null, unsubscribes all listeners from each 
        * property's change event and all listeners from the configChangedEvent.
        * @method destroy
        */
        destroy: function () {

            var oConfig = this.config,
                sProperty,
                oProperty;


            for (sProperty in oConfig) {
            
                if (Lang.hasOwnProperty(oConfig, sProperty)) {

                    oProperty = oConfig[sProperty];

                    oProperty.event.unsubscribeAll();
                    oProperty.event = null;

                }
            
            }
            
            this.configChangedEvent.unsubscribeAll();
            
            this.configChangedEvent = null;
            this.owner = null;
            this.config = null;
            this.initialConfig = null;
            this.eventQueue = null;
        
        }

    };
    
    
    
    /**
    * Checks to determine if a particular function/Object pair are already 
    * subscribed to the specified CustomEvent
    * @method YAHOO.util.Config.alreadySubscribed
    * @static
    * @param {YAHOO.util.CustomEvent} evt The CustomEvent for which to check 
    * the subscriptions
    * @param {Function} fn The function to look for in the subscribers list
    * @param {Object} obj The execution scope Object for the subscription
    * @return {Boolean} true, if the function/Object pair is already subscribed 
    * to the CustomEvent passed in
    */
    Config.alreadySubscribed = function (evt, fn, obj) {
    
        var nSubscribers = evt.subscribers.length,
            subsc,
            i;

        if (nSubscribers > 0) {
            i = nSubscribers - 1;
            do {
                subsc = evt.subscribers[i];
                if (subsc && subsc.obj == obj && subsc.fn == fn) {
                    return true;
                }
            }
            while (i--);
        }

        return false;

    };

    YAHOO.lang.augmentProto(Config, YAHOO.util.EventProvider);

}());

(function () {

    /**
    * The Container family of components is designed to enable developers to 
    * create different kinds of content-containing modules on the web. Module 
    * and Overlay are the most basic containers, and they can be used directly 
    * or extended to build custom containers. Also part of the Container family 
    * are four UI controls that extend Module and Overlay: Tooltip, Panel, 
    * Dialog, and SimpleDialog.
    * @module container
    * @title Container
    * @requires yahoo, dom, event 
    * @optional dragdrop, animation, button
    */
    
    /**
    * Module is a JavaScript representation of the Standard Module Format. 
    * Standard Module Format is a simple standard for markup containers where 
    * child nodes representing the header, body, and footer of the content are 
    * denoted using the CSS classes "hd", "bd", and "ft" respectively. 
    * Module is the base class for all other classes in the YUI 
    * Container package.
    * @namespace YAHOO.widget
    * @class Module
    * @constructor
    * @param {String} el The element ID representing the Module <em>OR</em>
    * @param {HTMLElement} el The element representing the Module
    * @param {Object} userConfig The configuration Object literal containing 
    * the configuration that should be set for this module. See configuration 
    * documentation for more details.
    */
    YAHOO.widget.Module = function (el, userConfig) {
        if (el) {
            this.init(el, userConfig);
        } else {
        }
    };

    var Dom = YAHOO.util.Dom,
        Config = YAHOO.util.Config,
        Event = YAHOO.util.Event,
        CustomEvent = YAHOO.util.CustomEvent,
        Module = YAHOO.widget.Module,
        UA = YAHOO.env.ua,

        m_oModuleTemplate,
        m_oHeaderTemplate,
        m_oBodyTemplate,
        m_oFooterTemplate,

        /**
        * Constant representing the name of the Module's events
        * @property EVENT_TYPES
        * @private
        * @final
        * @type Object
        */
        EVENT_TYPES = {
            "BEFORE_INIT": "beforeInit",
            "INIT": "init",
            "APPEND": "append",
            "BEFORE_RENDER": "beforeRender",
            "RENDER": "render",
            "CHANGE_HEADER": "changeHeader",
            "CHANGE_BODY": "changeBody",
            "CHANGE_FOOTER": "changeFooter",
            "CHANGE_CONTENT": "changeContent",
            "DESTORY": "destroy",
            "BEFORE_SHOW": "beforeShow",
            "SHOW": "show",
            "BEFORE_HIDE": "beforeHide",
            "HIDE": "hide"
        },
            
        /**
        * Constant representing the Module's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {
        
            "VISIBLE": { 
                key: "visible", 
                value: true, 
                validator: YAHOO.lang.isBoolean 
            },

            "EFFECT": {
                key: "effect",
                suppressEvent: true,
                supercedes: ["visible"]
            },

            "MONITOR_RESIZE": {
                key: "monitorresize",
                value: true
            },

            "APPEND_TO_DOCUMENT_BODY": {
                key: "appendtodocumentbody",
                value: false
            }
        };

    /**
    * Constant representing the prefix path to use for non-secure images
    * @property YAHOO.widget.Module.IMG_ROOT
    * @static
    * @final
    * @type String
    */
    Module.IMG_ROOT = null;
    
    /**
    * Constant representing the prefix path to use for securely served images
    * @property YAHOO.widget.Module.IMG_ROOT_SSL
    * @static
    * @final
    * @type String
    */
    Module.IMG_ROOT_SSL = null;
    
    /**
    * Constant for the default CSS class name that represents a Module
    * @property YAHOO.widget.Module.CSS_MODULE
    * @static
    * @final
    * @type String
    */
    Module.CSS_MODULE = "yui-module";
    
    /**
    * Constant representing the module header
    * @property YAHOO.widget.Module.CSS_HEADER
    * @static
    * @final
    * @type String
    */
    Module.CSS_HEADER = "hd";

    /**
    * Constant representing the module body
    * @property YAHOO.widget.Module.CSS_BODY
    * @static
    * @final
    * @type String
    */
    Module.CSS_BODY = "bd";
    
    /**
    * Constant representing the module footer
    * @property YAHOO.widget.Module.CSS_FOOTER
    * @static
    * @final
    * @type String
    */
    Module.CSS_FOOTER = "ft";
    
    /**
    * Constant representing the url for the "src" attribute of the iframe 
    * used to monitor changes to the browser's base font size
    * @property YAHOO.widget.Module.RESIZE_MONITOR_SECURE_URL
    * @static
    * @final
    * @type String
    */
    Module.RESIZE_MONITOR_SECURE_URL = "javascript:false;";

    /**
    * Constant representing the buffer amount (in pixels) to use when positioning
    * the text resize monitor offscreen. The resize monitor is positioned
    * offscreen by an amount eqaul to its offsetHeight + the buffer value.
    * 
    * @property YAHOO.widget.Module.RESIZE_MONITOR_BUFFER
    * @static
    * @type Number
    */
    // Set to 1, to work around pixel offset in IE8, which increases when zoom is used
    Module.RESIZE_MONITOR_BUFFER = 1;

    /**
    * Singleton CustomEvent fired when the font size is changed in the browser.
    * Opera's "zoom" functionality currently does not support text 
    * size detection.
    * @event YAHOO.widget.Module.textResizeEvent
    */
    Module.textResizeEvent = new CustomEvent("textResize");

    /**
     * Helper utility method, which forces a document level 
     * redraw for Opera, which can help remove repaint
     * irregularities after applying DOM changes.
     *
     * @method YAHOO.widget.Module.forceDocumentRedraw
     * @static
     */
    Module.forceDocumentRedraw = function() {
        var docEl = document.documentElement;
        if (docEl) {
            docEl.className += " ";
            docEl.className = YAHOO.lang.trim(docEl.className);
        }
    };

    function createModuleTemplate() {

        if (!m_oModuleTemplate) {
            m_oModuleTemplate = document.createElement("div");
            
            m_oModuleTemplate.innerHTML = ("<div class=\"" + 
                Module.CSS_HEADER + "\"></div>" + "<div class=\"" + 
                Module.CSS_BODY + "\"></div><div class=\"" + 
                Module.CSS_FOOTER + "\"></div>");

            m_oHeaderTemplate = m_oModuleTemplate.firstChild;
            m_oBodyTemplate = m_oHeaderTemplate.nextSibling;
            m_oFooterTemplate = m_oBodyTemplate.nextSibling;
        }

        return m_oModuleTemplate;
    }

    function createHeader() {
        if (!m_oHeaderTemplate) {
            createModuleTemplate();
        }
        return (m_oHeaderTemplate.cloneNode(false));
    }

    function createBody() {
        if (!m_oBodyTemplate) {
            createModuleTemplate();
        }
        return (m_oBodyTemplate.cloneNode(false));
    }

    function createFooter() {
        if (!m_oFooterTemplate) {
            createModuleTemplate();
        }
        return (m_oFooterTemplate.cloneNode(false));
    }

    Module.prototype = {

        /**
        * The class's constructor function
        * @property contructor
        * @type Function
        */
        constructor: Module,
        
        /**
        * The main module element that contains the header, body, and footer
        * @property element
        * @type HTMLElement
        */
        element: null,

        /**
        * The header element, denoted with CSS class "hd"
        * @property header
        * @type HTMLElement
        */
        header: null,

        /**
        * The body element, denoted with CSS class "bd"
        * @property body
        * @type HTMLElement
        */
        body: null,

        /**
        * The footer element, denoted with CSS class "ft"
        * @property footer
        * @type HTMLElement
        */
        footer: null,

        /**
        * The id of the element
        * @property id
        * @type String
        */
        id: null,

        /**
        * A string representing the root path for all images created by
        * a Module instance.
        * @deprecated It is recommend that any images for a Module be applied
        * via CSS using the "background-image" property.
        * @property imageRoot
        * @type String
        */
        imageRoot: Module.IMG_ROOT,

        /**
        * Initializes the custom events for Module which are fired 
        * automatically at appropriate times by the Module class.
        * @method initEvents
        */
        initEvents: function () {

            var SIGNATURE = CustomEvent.LIST;

            /**
            * CustomEvent fired prior to class initalization.
            * @event beforeInitEvent
            * @param {class} classRef class reference of the initializing 
            * class, such as this.beforeInitEvent.fire(Module)
            */
            this.beforeInitEvent = this.createEvent(EVENT_TYPES.BEFORE_INIT);
            this.beforeInitEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired after class initalization.
            * @event initEvent
            * @param {class} classRef class reference of the initializing 
            * class, such as this.beforeInitEvent.fire(Module)
            */  
            this.initEvent = this.createEvent(EVENT_TYPES.INIT);
            this.initEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired when the Module is appended to the DOM
            * @event appendEvent
            */
            this.appendEvent = this.createEvent(EVENT_TYPES.APPEND);
            this.appendEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired before the Module is rendered
            * @event beforeRenderEvent
            */
            this.beforeRenderEvent = this.createEvent(EVENT_TYPES.BEFORE_RENDER);
            this.beforeRenderEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired after the Module is rendered
            * @event renderEvent
            */
            this.renderEvent = this.createEvent(EVENT_TYPES.RENDER);
            this.renderEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired when the header content of the Module 
            * is modified
            * @event changeHeaderEvent
            * @param {String/HTMLElement} content String/element representing 
            * the new header content
            */
            this.changeHeaderEvent = this.createEvent(EVENT_TYPES.CHANGE_HEADER);
            this.changeHeaderEvent.signature = SIGNATURE;
            
            /**
            * CustomEvent fired when the body content of the Module is modified
            * @event changeBodyEvent
            * @param {String/HTMLElement} content String/element representing 
            * the new body content
            */  
            this.changeBodyEvent = this.createEvent(EVENT_TYPES.CHANGE_BODY);
            this.changeBodyEvent.signature = SIGNATURE;
            
            /**
            * CustomEvent fired when the footer content of the Module 
            * is modified
            * @event changeFooterEvent
            * @param {String/HTMLElement} content String/element representing 
            * the new footer content
            */
            this.changeFooterEvent = this.createEvent(EVENT_TYPES.CHANGE_FOOTER);
            this.changeFooterEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired when the content of the Module is modified
            * @event changeContentEvent
            */
            this.changeContentEvent = this.createEvent(EVENT_TYPES.CHANGE_CONTENT);
            this.changeContentEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired when the Module is destroyed
            * @event destroyEvent
            */
            this.destroyEvent = this.createEvent(EVENT_TYPES.DESTORY);
            this.destroyEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired before the Module is shown
            * @event beforeShowEvent
            */
            this.beforeShowEvent = this.createEvent(EVENT_TYPES.BEFORE_SHOW);
            this.beforeShowEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired after the Module is shown
            * @event showEvent
            */
            this.showEvent = this.createEvent(EVENT_TYPES.SHOW);
            this.showEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired before the Module is hidden
            * @event beforeHideEvent
            */
            this.beforeHideEvent = this.createEvent(EVENT_TYPES.BEFORE_HIDE);
            this.beforeHideEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired after the Module is hidden
            * @event hideEvent
            */
            this.hideEvent = this.createEvent(EVENT_TYPES.HIDE);
            this.hideEvent.signature = SIGNATURE;
        }, 

        /**
        * String representing the current user-agent platform
        * @property platform
        * @type String
        */
        platform: function () {
            var ua = navigator.userAgent.toLowerCase();

            if (ua.indexOf("windows") != -1 || ua.indexOf("win32") != -1) {
                return "windows";
            } else if (ua.indexOf("macintosh") != -1) {
                return "mac";
            } else {
                return false;
            }
        }(),
        
        /**
        * String representing the user-agent of the browser
        * @deprecated Use YAHOO.env.ua
        * @property browser
        * @type String
        */
        browser: function () {
            var ua = navigator.userAgent.toLowerCase();
            /*
                 Check Opera first in case of spoof and check Safari before
                 Gecko since Safari's user agent string includes "like Gecko"
            */
            if (ua.indexOf('opera') != -1) { 
                return 'opera';
            } else if (ua.indexOf('msie 7') != -1) {
                return 'ie7';
            } else if (ua.indexOf('msie') != -1) {
                return 'ie';
            } else if (ua.indexOf('safari') != -1) { 
                return 'safari';
            } else if (ua.indexOf('gecko') != -1) {
                return 'gecko';
            } else {
                return false;
            }
        }(),
        
        /**
        * Boolean representing whether or not the current browsing context is 
        * secure (https)
        * @property isSecure
        * @type Boolean
        */
        isSecure: function () {
            if (window.location.href.toLowerCase().indexOf("https") === 0) {
                return true;
            } else {
                return false;
            }
        }(),
        
        /**
        * Initializes the custom events for Module which are fired 
        * automatically at appropriate times by the Module class.
        */
        initDefaultConfig: function () {
            // Add properties //
            /**
            * Specifies whether the Module is visible on the page.
            * @config visible
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.VISIBLE.key, {
                handler: this.configVisible, 
                value: DEFAULT_CONFIG.VISIBLE.value, 
                validator: DEFAULT_CONFIG.VISIBLE.validator
            });

            /**
            * <p>
            * Object or array of objects representing the ContainerEffect 
            * classes that are active for animating the container.
            * </p>
            * <p>
            * <strong>NOTE:</strong> Although this configuration 
            * property is introduced at the Module level, an out of the box
            * implementation is not shipped for the Module class so setting
            * the proroperty on the Module class has no effect. The Overlay 
            * class is the first class to provide out of the box ContainerEffect 
            * support.
            * </p>
            * @config effect
            * @type Object
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.EFFECT.key, {
                suppressEvent: DEFAULT_CONFIG.EFFECT.suppressEvent, 
                supercedes: DEFAULT_CONFIG.EFFECT.supercedes
            });

            /**
            * Specifies whether to create a special proxy iframe to monitor 
            * for user font resizing in the document
            * @config monitorresize
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.MONITOR_RESIZE.key, {
                handler: this.configMonitorResize,
                value: DEFAULT_CONFIG.MONITOR_RESIZE.value
            });

            /**
            * Specifies if the module should be rendered as the first child 
            * of document.body or appended as the last child when render is called
            * with document.body as the "appendToNode".
            * <p>
            * Appending to the body while the DOM is still being constructed can 
            * lead to Operation Aborted errors in IE hence this flag is set to 
            * false by default.
            * </p>
            * 
            * @config appendtodocumentbody
            * @type Boolean
            * @default false
            */
            this.cfg.addProperty(DEFAULT_CONFIG.APPEND_TO_DOCUMENT_BODY.key, {
                value: DEFAULT_CONFIG.APPEND_TO_DOCUMENT_BODY.value
            });
        },

        /**
        * The Module class's initialization method, which is executed for
        * Module and all of its subclasses. This method is automatically 
        * called by the constructor, and  sets up all DOM references for 
        * pre-existing markup, and creates required markup if it is not 
        * already present.
        * <p>
        * If the element passed in does not have an id, one will be generated
        * for it.
        * </p>
        * @method init
        * @param {String} el The element ID representing the Module <em>OR</em>
        * @param {HTMLElement} el The element representing the Module
        * @param {Object} userConfig The configuration Object literal 
        * containing the configuration that should be set for this module. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {

            var elId, child;

            this.initEvents();
            this.beforeInitEvent.fire(Module);

            /**
            * The Module's Config object used for monitoring 
            * configuration properties.
            * @property cfg
            * @type YAHOO.util.Config
            */
            this.cfg = new Config(this);

            if (this.isSecure) {
                this.imageRoot = Module.IMG_ROOT_SSL;
            }

            if (typeof el == "string") {
                elId = el;
                el = document.getElementById(el);
                if (! el) {
                    el = (createModuleTemplate()).cloneNode(false);
                    el.id = elId;
                }
            }

            this.id = Dom.generateId(el);
            this.element = el;

            child = this.element.firstChild;

            if (child) {
                var fndHd = false, fndBd = false, fndFt = false;
                do {
                    // We're looking for elements
                    if (1 == child.nodeType) {
                        if (!fndHd && Dom.hasClass(child, Module.CSS_HEADER)) {
                            this.header = child;
                            fndHd = true;
                        } else if (!fndBd && Dom.hasClass(child, Module.CSS_BODY)) {
                            this.body = child;
                            fndBd = true;
                        } else if (!fndFt && Dom.hasClass(child, Module.CSS_FOOTER)){
                            this.footer = child;
                            fndFt = true;
                        }
                    }
                } while ((child = child.nextSibling));
            }

            this.initDefaultConfig();

            Dom.addClass(this.element, Module.CSS_MODULE);

            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }

            /*
                Subscribe to the fireQueue() method of Config so that any 
                queued configuration changes are excecuted upon render of 
                the Module
            */ 

            if (!Config.alreadySubscribed(this.renderEvent, this.cfg.fireQueue, this.cfg)) {
                this.renderEvent.subscribe(this.cfg.fireQueue, this.cfg, true);
            }

            this.initEvent.fire(Module);
        },

        /**
        * Initialize an empty IFRAME that is placed out of the visible area 
        * that can be used to detect text resize.
        * @method initResizeMonitor
        */
        initResizeMonitor: function () {

            var isGeckoWin = (UA.gecko && this.platform == "windows");
            if (isGeckoWin) {
                // Help prevent spinning loading icon which 
                // started with FireFox 2.0.0.8/Win
                var self = this;
                setTimeout(function(){self._initResizeMonitor();}, 0);
            } else {
                this._initResizeMonitor();
            }
        },

        /**
         * Create and initialize the text resize monitoring iframe.
         * 
         * @protected
         * @method _initResizeMonitor
         */
        _initResizeMonitor : function() {

            var oDoc, 
                oIFrame, 
                sHTML;

            function fireTextResize() {
                Module.textResizeEvent.fire();
            }

            if (!UA.opera) {
                oIFrame = Dom.get("_yuiResizeMonitor");

                var supportsCWResize = this._supportsCWResize();

                if (!oIFrame) {
                    oIFrame = document.createElement("iframe");

                    if (this.isSecure && Module.RESIZE_MONITOR_SECURE_URL && UA.ie) {
                        oIFrame.src = Module.RESIZE_MONITOR_SECURE_URL;
                    }

                    if (!supportsCWResize) {
                        // Can't monitor on contentWindow, so fire from inside iframe
                        sHTML = ["<html><head><script ",
                                 "type=\"text/javascript\">",
                                 "window.onresize=function(){window.parent.",
                                 "YAHOO.widget.Module.textResizeEvent.",
                                 "fire();};<",
                                 "\/script></head>",
                                 "<body></body></html>"].join('');

                        oIFrame.src = "data:text/html;charset=utf-8," + encodeURIComponent(sHTML);
                    }

                    oIFrame.id = "_yuiResizeMonitor";
                    oIFrame.title = "Text Resize Monitor";
                    /*
                        Need to set "position" property before inserting the 
                        iframe into the document or Safari's status bar will 
                        forever indicate the iframe is loading 
                        (See SourceForge bug #1723064)
                    */
                    oIFrame.style.position = "absolute";
                    oIFrame.style.visibility = "hidden";

                    var db = document.body,
                        fc = db.firstChild;
                    if (fc) {
                        db.insertBefore(oIFrame, fc);
                    } else {
                        db.appendChild(oIFrame);
                    }

                    oIFrame.style.width = "2em";
                    oIFrame.style.height = "2em";
                    oIFrame.style.top = (-1 * (oIFrame.offsetHeight + Module.RESIZE_MONITOR_BUFFER)) + "px";
                    oIFrame.style.left = "0";
                    oIFrame.style.borderWidth = "0";
                    oIFrame.style.visibility = "visible";

                    /*
                       Don't open/close the document for Gecko like we used to, since it
                       leads to duplicate cookies. (See SourceForge bug #1721755)
                    */
                    if (UA.webkit) {
                        oDoc = oIFrame.contentWindow.document;
                        oDoc.open();
                        oDoc.close();
                    }
                }

                if (oIFrame && oIFrame.contentWindow) {
                    Module.textResizeEvent.subscribe(this.onDomResize, this, true);

                    if (!Module.textResizeInitialized) {
                        if (supportsCWResize) {
                            if (!Event.on(oIFrame.contentWindow, "resize", fireTextResize)) {
                                /*
                                     This will fail in IE if document.domain has 
                                     changed, so we must change the listener to 
                                     use the oIFrame element instead
                                */
                                Event.on(oIFrame, "resize", fireTextResize);
                            }
                        }
                        Module.textResizeInitialized = true;
                    }
                    this.resizeMonitor = oIFrame;
                }
            }
        },

        /**
         * Text resize monitor helper method.
         * Determines if the browser supports resize events on iframe content windows.
         * 
         * @private
         * @method _supportsCWResize
         */
        _supportsCWResize : function() {
            /*
                Gecko 1.8.0 (FF1.5), 1.8.1.0-5 (FF2) won't fire resize on contentWindow.
                Gecko 1.8.1.6+ (FF2.0.0.6+) and all other browsers will fire resize on contentWindow.

                We don't want to start sniffing for patch versions, so fire textResize the same
                way on all FF2 flavors
             */
            var bSupported = true;
            if (UA.gecko && UA.gecko <= 1.8) {
                bSupported = false;
            }
            return bSupported;
        },

        /**
        * Event handler fired when the resize monitor element is resized.
        * @method onDomResize
        * @param {DOMEvent} e The DOM resize event
        * @param {Object} obj The scope object passed to the handler
        */
        onDomResize: function (e, obj) {

            var nTop = -1 * (this.resizeMonitor.offsetHeight + Module.RESIZE_MONITOR_BUFFER);

            this.resizeMonitor.style.top = nTop + "px";
            this.resizeMonitor.style.left = "0";
        },

        /**
        * Sets the Module's header content to the string specified, or appends 
        * the passed element to the header. If no header is present, one will 
        * be automatically created. An empty string can be passed to the method
        * to clear the contents of the header.
        * 
        * @method setHeader
        * @param {String} headerContent The string used to set the header.
        * As a convenience, non HTMLElement objects can also be passed into 
        * the method, and will be treated as strings, with the header innerHTML
        * set to their default toString implementations.
        * <em>OR</em>
        * @param {HTMLElement} headerContent The HTMLElement to append to 
        * <em>OR</em>
        * @param {DocumentFragment} headerContent The document fragment 
        * containing elements which are to be added to the header
        */
        setHeader: function (headerContent) {
            var oHeader = this.header || (this.header = createHeader());

            if (headerContent.nodeName) {
                oHeader.innerHTML = "";
                oHeader.appendChild(headerContent);
            } else {
                oHeader.innerHTML = headerContent;
            }

            this.changeHeaderEvent.fire(headerContent);
            this.changeContentEvent.fire();

        },

        /**
        * Appends the passed element to the header. If no header is present, 
        * one will be automatically created.
        * @method appendToHeader
        * @param {HTMLElement | DocumentFragment} element The element to 
        * append to the header. In the case of a document fragment, the
        * children of the fragment will be appended to the header.
        */
        appendToHeader: function (element) {
            var oHeader = this.header || (this.header = createHeader());

            oHeader.appendChild(element);

            this.changeHeaderEvent.fire(element);
            this.changeContentEvent.fire();

        },

        /**
        * Sets the Module's body content to the HTML specified. 
        * 
        * If no body is present, one will be automatically created. 
        * 
        * An empty string can be passed to the method to clear the contents of the body.
        * @method setBody
        * @param {String} bodyContent The HTML used to set the body. 
        * As a convenience, non HTMLElement objects can also be passed into 
        * the method, and will be treated as strings, with the body innerHTML
        * set to their default toString implementations.
        * <em>OR</em>
        * @param {HTMLElement} bodyContent The HTMLElement to add as the first and only
        * child of the body element.
        * <em>OR</em>
        * @param {DocumentFragment} bodyContent The document fragment 
        * containing elements which are to be added to the body
        */
        setBody: function (bodyContent) {
            var oBody = this.body || (this.body = createBody());

            if (bodyContent.nodeName) {
                oBody.innerHTML = "";
                oBody.appendChild(bodyContent);
            } else {
                oBody.innerHTML = bodyContent;
            }

            this.changeBodyEvent.fire(bodyContent);
            this.changeContentEvent.fire();
        },

        /**
        * Appends the passed element to the body. If no body is present, one 
        * will be automatically created.
        * @method appendToBody
        * @param {HTMLElement | DocumentFragment} element The element to 
        * append to the body. In the case of a document fragment, the
        * children of the fragment will be appended to the body.
        * 
        */
        appendToBody: function (element) {
            var oBody = this.body || (this.body = createBody());
        
            oBody.appendChild(element);

            this.changeBodyEvent.fire(element);
            this.changeContentEvent.fire();

        },
        
        /**
        * Sets the Module's footer content to the HTML specified, or appends 
        * the passed element to the footer. If no footer is present, one will 
        * be automatically created. An empty string can be passed to the method
        * to clear the contents of the footer.
        * @method setFooter
        * @param {String} footerContent The HTML used to set the footer 
        * As a convenience, non HTMLElement objects can also be passed into 
        * the method, and will be treated as strings, with the footer innerHTML
        * set to their default toString implementations.
        * <em>OR</em>
        * @param {HTMLElement} footerContent The HTMLElement to append to 
        * the footer
        * <em>OR</em>
        * @param {DocumentFragment} footerContent The document fragment containing 
        * elements which are to be added to the footer
        */
        setFooter: function (footerContent) {

            var oFooter = this.footer || (this.footer = createFooter());

            if (footerContent.nodeName) {
                oFooter.innerHTML = "";
                oFooter.appendChild(footerContent);
            } else {
                oFooter.innerHTML = footerContent;
            }

            this.changeFooterEvent.fire(footerContent);
            this.changeContentEvent.fire();
        },

        /**
        * Appends the passed element to the footer. If no footer is present, 
        * one will be automatically created.
        * @method appendToFooter
        * @param {HTMLElement | DocumentFragment} element The element to 
        * append to the footer. In the case of a document fragment, the
        * children of the fragment will be appended to the footer
        */
        appendToFooter: function (element) {

            var oFooter = this.footer || (this.footer = createFooter());

            oFooter.appendChild(element);

            this.changeFooterEvent.fire(element);
            this.changeContentEvent.fire();

        },

        /**
        * Renders the Module by inserting the elements that are not already 
        * in the main Module into their correct places. Optionally appends 
        * the Module to the specified node prior to the render's execution. 
        * <p>
        * For Modules without existing markup, the appendToNode argument 
        * is REQUIRED. If this argument is ommitted and the current element is 
        * not present in the document, the function will return false, 
        * indicating that the render was a failure.
        * </p>
        * <p>
        * NOTE: As of 2.3.1, if the appendToNode is the document's body element
        * then the module is rendered as the first child of the body element, 
        * and not appended to it, to avoid Operation Aborted errors in IE when 
        * rendering the module before window's load event is fired. You can 
        * use the appendtodocumentbody configuration property to change this 
        * to append to document.body if required.
        * </p>
        * @method render
        * @param {String} appendToNode The element id to which the Module 
        * should be appended to prior to rendering <em>OR</em>
        * @param {HTMLElement} appendToNode The element to which the Module 
        * should be appended to prior to rendering
        * @param {HTMLElement} moduleElement OPTIONAL. The element that 
        * represents the actual Standard Module container.
        * @return {Boolean} Success or failure of the render
        */
        render: function (appendToNode, moduleElement) {

            var me = this,
                firstChild;

            function appendTo(parentNode) {
                if (typeof parentNode == "string") {
                    parentNode = document.getElementById(parentNode);
                }

                if (parentNode) {
                    me._addToParent(parentNode, me.element);
                    me.appendEvent.fire();
                }
            }

            this.beforeRenderEvent.fire();

            if (! moduleElement) {
                moduleElement = this.element;
            }

            if (appendToNode) {
                appendTo(appendToNode);
            } else { 
                // No node was passed in. If the element is not already in the Dom, this fails
                if (! Dom.inDocument(this.element)) {
                    return false;
                }
            }

            // Need to get everything into the DOM if it isn't already
            if (this.header && ! Dom.inDocument(this.header)) {
                // There is a header, but it's not in the DOM yet. Need to add it.
                firstChild = moduleElement.firstChild;
                if (firstChild) {
                    moduleElement.insertBefore(this.header, firstChild);
                } else {
                    moduleElement.appendChild(this.header);
                }
            }

            if (this.body && ! Dom.inDocument(this.body)) {
                // There is a body, but it's not in the DOM yet. Need to add it.		
                if (this.footer && Dom.isAncestor(this.moduleElement, this.footer)) {
                    moduleElement.insertBefore(this.body, this.footer);
                } else {
                    moduleElement.appendChild(this.body);
                }
            }

            if (this.footer && ! Dom.inDocument(this.footer)) {
                // There is a footer, but it's not in the DOM yet. Need to add it.
                moduleElement.appendChild(this.footer);
            }

            this.renderEvent.fire();
            return true;
        },

        /**
        * Removes the Module element from the DOM and sets all child elements 
        * to null.
        * @method destroy
        */
        destroy: function () {

            var parent;

            if (this.element) {
                Event.purgeElement(this.element, true);
                parent = this.element.parentNode;
            }

            if (parent) {
                parent.removeChild(this.element);
            }
        
            this.element = null;
            this.header = null;
            this.body = null;
            this.footer = null;

            Module.textResizeEvent.unsubscribe(this.onDomResize, this);

            this.cfg.destroy();
            this.cfg = null;

            this.destroyEvent.fire();
        },

        /**
        * Shows the Module element by setting the visible configuration 
        * property to true. Also fires two events: beforeShowEvent prior to 
        * the visibility change, and showEvent after.
        * @method show
        */
        show: function () {
            this.cfg.setProperty("visible", true);
        },

        /**
        * Hides the Module element by setting the visible configuration 
        * property to false. Also fires two events: beforeHideEvent prior to 
        * the visibility change, and hideEvent after.
        * @method hide
        */
        hide: function () {
            this.cfg.setProperty("visible", false);
        },
        
        // BUILT-IN EVENT HANDLERS FOR MODULE //
        /**
        * Default event handler for changing the visibility property of a 
        * Module. By default, this is achieved by switching the "display" style 
        * between "block" and "none".
        * This method is responsible for firing showEvent and hideEvent.
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        * @method configVisible
        */
        configVisible: function (type, args, obj) {
            var visible = args[0];
            if (visible) {
                this.beforeShowEvent.fire();
                Dom.setStyle(this.element, "display", "block");
                this.showEvent.fire();
            } else {
                this.beforeHideEvent.fire();
                Dom.setStyle(this.element, "display", "none");
                this.hideEvent.fire();
            }
        },

        /**
        * Default event handler for the "monitorresize" configuration property
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        * @method configMonitorResize
        */
        configMonitorResize: function (type, args, obj) {
            var monitor = args[0];
            if (monitor) {
                this.initResizeMonitor();
            } else {
                Module.textResizeEvent.unsubscribe(this.onDomResize, this, true);
                this.resizeMonitor = null;
            }
        },

        /**
         * This method is a protected helper, used when constructing the DOM structure for the module 
         * to account for situations which may cause Operation Aborted errors in IE. It should not 
         * be used for general DOM construction.
         * <p>
         * If the parentNode is not document.body, the element is appended as the last element.
         * </p>
         * <p>
         * If the parentNode is document.body the element is added as the first child to help
         * prevent Operation Aborted errors in IE.
         * </p>
         *
         * @param {parentNode} The HTML element to which the element will be added
         * @param {element} The HTML element to be added to parentNode's children
         * @method _addToParent
         * @protected
         */
        _addToParent: function(parentNode, element) {
            if (!this.cfg.getProperty("appendtodocumentbody") && parentNode === document.body && parentNode.firstChild) {
                parentNode.insertBefore(element, parentNode.firstChild);
            } else {
                parentNode.appendChild(element);
            }
        },

        /**
        * Returns a String representation of the Object.
        * @method toString
        * @return {String} The string representation of the Module
        */
        toString: function () {
            return "Module " + this.id;
        }
    };

    YAHOO.lang.augmentProto(Module, YAHOO.util.EventProvider);

}());

(function () {

    /**
    * Overlay is a Module that is absolutely positioned above the page flow. It 
    * has convenience methods for positioning and sizing, as well as options for 
    * controlling zIndex and constraining the Overlay's position to the current 
    * visible viewport. Overlay also contains a dynamicly generated IFRAME which 
    * is placed beneath it for Internet Explorer 6 and 5.x so that it will be 
    * properly rendered above SELECT elements.
    * @namespace YAHOO.widget
    * @class Overlay
    * @extends YAHOO.widget.Module
    * @param {String} el The element ID representing the Overlay <em>OR</em>
    * @param {HTMLElement} el The element representing the Overlay
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this Overlay. See configuration 
    * documentation for more details.
    * @constructor
    */
    YAHOO.widget.Overlay = function (el, userConfig) {
        YAHOO.widget.Overlay.superclass.constructor.call(this, el, userConfig);
    };

    var Lang = YAHOO.lang,
        CustomEvent = YAHOO.util.CustomEvent,
        Module = YAHOO.widget.Module,
        Event = YAHOO.util.Event,
        Dom = YAHOO.util.Dom,
        Config = YAHOO.util.Config,
        UA = YAHOO.env.ua,
        Overlay = YAHOO.widget.Overlay,

        _SUBSCRIBE = "subscribe",
        _UNSUBSCRIBE = "unsubscribe",
        _CONTAINED = "contained",

        m_oIFrameTemplate,

        /**
        * Constant representing the name of the Overlay's events
        * @property EVENT_TYPES
        * @private
        * @final
        * @type Object
        */
        EVENT_TYPES = {
            "BEFORE_MOVE": "beforeMove",
            "MOVE": "move"
        },

        /**
        * Constant representing the Overlay's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {

            "X": { 
                key: "x", 
                validator: Lang.isNumber, 
                suppressEvent: true, 
                supercedes: ["iframe"]
            },

            "Y": { 
                key: "y", 
                validator: Lang.isNumber, 
                suppressEvent: true, 
                supercedes: ["iframe"]
            },

            "XY": { 
                key: "xy", 
                suppressEvent: true, 
                supercedes: ["iframe"] 
            },

            "CONTEXT": { 
                key: "context", 
                suppressEvent: true, 
                supercedes: ["iframe"] 
            },

            "FIXED_CENTER": { 
                key: "fixedcenter", 
                value: false, 
                supercedes: ["iframe", "visible"] 
            },

            "WIDTH": { 
                key: "width",
                suppressEvent: true,
                supercedes: ["context", "fixedcenter", "iframe"]
            }, 

            "HEIGHT": { 
                key: "height", 
                suppressEvent: true, 
                supercedes: ["context", "fixedcenter", "iframe"] 
            },

            "AUTO_FILL_HEIGHT" : {
                key: "autofillheight",
                supercedes: ["height"],
                value:"body"
            },

            "ZINDEX": { 
                key: "zindex", 
                value: null 
            },

            "CONSTRAIN_TO_VIEWPORT": { 
                key: "constraintoviewport", 
                value: false, 
                validator: Lang.isBoolean, 
                supercedes: ["iframe", "x", "y", "xy"]
            }, 

            "IFRAME": { 
                key: "iframe", 
                value: (UA.ie == 6 ? true : false), 
                validator: Lang.isBoolean, 
                supercedes: ["zindex"] 
            },

            "PREVENT_CONTEXT_OVERLAP": {
                key: "preventcontextoverlap",
                value: false,
                validator: Lang.isBoolean,  
                supercedes: ["constraintoviewport"]
            }

        };

    /**
    * The URL that will be placed in the iframe
    * @property YAHOO.widget.Overlay.IFRAME_SRC
    * @static
    * @final
    * @type String
    */
    Overlay.IFRAME_SRC = "javascript:false;";

    /**
    * Number representing how much the iframe shim should be offset from each 
    * side of an Overlay instance, in pixels.
    * @property YAHOO.widget.Overlay.IFRAME_SRC
    * @default 3
    * @static
    * @final
    * @type Number
    */
    Overlay.IFRAME_OFFSET = 3;

    /**
    * Number representing the minimum distance an Overlay instance should be 
    * positioned relative to the boundaries of the browser's viewport, in pixels.
    * @property YAHOO.widget.Overlay.VIEWPORT_OFFSET
    * @default 10
    * @static
    * @final
    * @type Number
    */
    Overlay.VIEWPORT_OFFSET = 10;

    /**
    * Constant representing the top left corner of an element, used for 
    * configuring the context element alignment
    * @property YAHOO.widget.Overlay.TOP_LEFT
    * @static
    * @final
    * @type String
    */
    Overlay.TOP_LEFT = "tl";

    /**
    * Constant representing the top right corner of an element, used for 
    * configuring the context element alignment
    * @property YAHOO.widget.Overlay.TOP_RIGHT
    * @static
    * @final
    * @type String
    */
    Overlay.TOP_RIGHT = "tr";

    /**
    * Constant representing the top bottom left corner of an element, used for 
    * configuring the context element alignment
    * @property YAHOO.widget.Overlay.BOTTOM_LEFT
    * @static
    * @final
    * @type String
    */
    Overlay.BOTTOM_LEFT = "bl";

    /**
    * Constant representing the bottom right corner of an element, used for 
    * configuring the context element alignment
    * @property YAHOO.widget.Overlay.BOTTOM_RIGHT
    * @static
    * @final
    * @type String
    */
    Overlay.BOTTOM_RIGHT = "br";

    /**
    * Constant representing the default CSS class used for an Overlay
    * @property YAHOO.widget.Overlay.CSS_OVERLAY
    * @static
    * @final
    * @type String
    */
    Overlay.CSS_OVERLAY = "yui-overlay";

    /**
     * Constant representing the names of the standard module elements
     * used in the overlay.
     * @property YAHOO.widget.Overlay.STD_MOD_RE
     * @static
     * @final
     * @type RegExp
     */
    Overlay.STD_MOD_RE = /^\s*?(body|footer|header)\s*?$/i;

    /**
    * A singleton CustomEvent used for reacting to the DOM event for 
    * window scroll
    * @event YAHOO.widget.Overlay.windowScrollEvent
    */
    Overlay.windowScrollEvent = new CustomEvent("windowScroll");

    /**
    * A singleton CustomEvent used for reacting to the DOM event for
    * window resize
    * @event YAHOO.widget.Overlay.windowResizeEvent
    */
    Overlay.windowResizeEvent = new CustomEvent("windowResize");

    /**
    * The DOM event handler used to fire the CustomEvent for window scroll
    * @method YAHOO.widget.Overlay.windowScrollHandler
    * @static
    * @param {DOMEvent} e The DOM scroll event
    */
    Overlay.windowScrollHandler = function (e) {
        var t = Event.getTarget(e);

        // - Webkit (Safari 2/3) and Opera 9.2x bubble scroll events from elements to window
        // - FF2/3 and IE6/7, Opera 9.5x don't bubble scroll events from elements to window
        // - IE doesn't recognize scroll registered on the document.
        //
        // Also, when document view is scrolled, IE doesn't provide a target, 
        // rest of the browsers set target to window.document, apart from opera 
        // which sets target to window.
        if (!t || t === window || t === window.document) {
            if (UA.ie) {

                if (! window.scrollEnd) {
                    window.scrollEnd = -1;
                }

                clearTimeout(window.scrollEnd);
        
                window.scrollEnd = setTimeout(function () { 
                    Overlay.windowScrollEvent.fire(); 
                }, 1);
        
            } else {
                Overlay.windowScrollEvent.fire();
            }
        }
    };

    /**
    * The DOM event handler used to fire the CustomEvent for window resize
    * @method YAHOO.widget.Overlay.windowResizeHandler
    * @static
    * @param {DOMEvent} e The DOM resize event
    */
    Overlay.windowResizeHandler = function (e) {

        if (UA.ie) {
            if (! window.resizeEnd) {
                window.resizeEnd = -1;
            }

            clearTimeout(window.resizeEnd);

            window.resizeEnd = setTimeout(function () {
                Overlay.windowResizeEvent.fire(); 
            }, 100);
        } else {
            Overlay.windowResizeEvent.fire();
        }
    };

    /**
    * A boolean that indicated whether the window resize and scroll events have 
    * already been subscribed to.
    * @property YAHOO.widget.Overlay._initialized
    * @private
    * @type Boolean
    */
    Overlay._initialized = null;

    if (Overlay._initialized === null) {
        Event.on(window, "scroll", Overlay.windowScrollHandler);
        Event.on(window, "resize", Overlay.windowResizeHandler);
        Overlay._initialized = true;
    }

    /**
     * Internal map of special event types, which are provided
     * by the instance. It maps the event type to the custom event 
     * instance. Contains entries for the "windowScroll", "windowResize" and
     * "textResize" static container events.
     *
     * @property YAHOO.widget.Overlay._TRIGGER_MAP
     * @type Object
     * @static
     * @private
     */
    Overlay._TRIGGER_MAP = {
        "windowScroll" : Overlay.windowScrollEvent,
        "windowResize" : Overlay.windowResizeEvent,
        "textResize"   : Module.textResizeEvent
    };

    YAHOO.extend(Overlay, Module, {

        /**
         * <p>
         * Array of default event types which will trigger
         * context alignment for the Overlay class.
         * </p>
         * <p>The array is empty by default for Overlay,
         * but maybe populated in future releases, so classes extending
         * Overlay which need to define their own set of CONTEXT_TRIGGERS
         * should concatenate their super class's prototype.CONTEXT_TRIGGERS 
         * value with their own array of values.
         * </p>
         * <p>
         * E.g.:
         * <code>CustomOverlay.prototype.CONTEXT_TRIGGERS = YAHOO.widget.Overlay.prototype.CONTEXT_TRIGGERS.concat(["windowScroll"]);</code>
         * </p>
         * 
         * @property CONTEXT_TRIGGERS
         * @type Array
         * @final
         */
        CONTEXT_TRIGGERS : [],

        /**
        * The Overlay initialization method, which is executed for Overlay and  
        * all of its subclasses. This method is automatically called by the 
        * constructor, and  sets up all DOM references for pre-existing markup, 
        * and creates required markup if it is not already present.
        * @method init
        * @param {String} el The element ID representing the Overlay <em>OR</em>
        * @param {HTMLElement} el The element representing the Overlay
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this Overlay. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {

            /*
                 Note that we don't pass the user config in here yet because we
                 only want it executed once, at the lowest subclass level
            */

            Overlay.superclass.init.call(this, el/*, userConfig*/);

            this.beforeInitEvent.fire(Overlay);

            Dom.addClass(this.element, Overlay.CSS_OVERLAY);

            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }

            if (this.platform == "mac" && UA.gecko) {

                if (! Config.alreadySubscribed(this.showEvent,
                    this.showMacGeckoScrollbars, this)) {

                    this.showEvent.subscribe(this.showMacGeckoScrollbars, 
                        this, true);

                }

                if (! Config.alreadySubscribed(this.hideEvent, 
                    this.hideMacGeckoScrollbars, this)) {

                    this.hideEvent.subscribe(this.hideMacGeckoScrollbars, 
                        this, true);

                }
            }

            this.initEvent.fire(Overlay);
        },
        
        /**
        * Initializes the custom events for Overlay which are fired  
        * automatically at appropriate times by the Overlay class.
        * @method initEvents
        */
        initEvents: function () {

            Overlay.superclass.initEvents.call(this);

            var SIGNATURE = CustomEvent.LIST;

            /**
            * CustomEvent fired before the Overlay is moved.
            * @event beforeMoveEvent
            * @param {Number} x x coordinate
            * @param {Number} y y coordinate
            */
            this.beforeMoveEvent = this.createEvent(EVENT_TYPES.BEFORE_MOVE);
            this.beforeMoveEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired after the Overlay is moved.
            * @event moveEvent
            * @param {Number} x x coordinate
            * @param {Number} y y coordinate
            */
            this.moveEvent = this.createEvent(EVENT_TYPES.MOVE);
            this.moveEvent.signature = SIGNATURE;

        },
        
        /**
        * Initializes the class's configurable properties which can be changed 
        * using the Overlay's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
    
            Overlay.superclass.initDefaultConfig.call(this);

            var cfg = this.cfg;

            // Add overlay config properties //
            
            /**
            * The absolute x-coordinate position of the Overlay
            * @config x
            * @type Number
            * @default null
            */
            cfg.addProperty(DEFAULT_CONFIG.X.key, { 
    
                handler: this.configX, 
                validator: DEFAULT_CONFIG.X.validator, 
                suppressEvent: DEFAULT_CONFIG.X.suppressEvent, 
                supercedes: DEFAULT_CONFIG.X.supercedes
    
            });

            /**
            * The absolute y-coordinate position of the Overlay
            * @config y
            * @type Number
            * @default null
            */
            cfg.addProperty(DEFAULT_CONFIG.Y.key, {

                handler: this.configY, 
                validator: DEFAULT_CONFIG.Y.validator, 
                suppressEvent: DEFAULT_CONFIG.Y.suppressEvent, 
                supercedes: DEFAULT_CONFIG.Y.supercedes

            });

            /**
            * An array with the absolute x and y positions of the Overlay
            * @config xy
            * @type Number[]
            * @default null
            */
            cfg.addProperty(DEFAULT_CONFIG.XY.key, {
                handler: this.configXY, 
                suppressEvent: DEFAULT_CONFIG.XY.suppressEvent, 
                supercedes: DEFAULT_CONFIG.XY.supercedes
            });

            /**
            * <p>
            * The array of context arguments for context-sensitive positioning. 
            * </p>
            *
            * <p>
            * The format of the array is: <code>[contextElementOrId, overlayCorner, contextCorner, arrayOfTriggerEvents (optional)]</code>, the
            * the 4 array elements described in detail below:
            * </p>
            *
            * <dl>
            * <dt>contextElementOrId &#60;String|HTMLElement&#62;</dt>
            * <dd>A reference to the context element to which the overlay should be aligned (or it's id).</dd>
            * <dt>overlayCorner &#60;String&#62;</dt>
            * <dd>The corner of the overlay which is to be used for alignment. This corner will be aligned to the 
            * corner of the context element defined by the "contextCorner" entry which follows. Supported string values are: 
            * "tr" (top right), "tl" (top left), "br" (bottom right), or "bl" (bottom left).</dd>
            * <dt>contextCorner &#60;String&#62;</dt>
            * <dd>The corner of the context element which is to be used for alignment. Supported string values are the same ones listed for the "overlayCorner" entry above.</dd>
            * <dt>arrayOfTriggerEvents (optional) &#60;Array[String|CustomEvent]&#62;</dt>
            * <dd>
            * <p>
            * By default, context alignment is a one time operation, aligning the Overlay to the context element when context configuration property is set, or when the <a href="#method_align">align</a> 
            * method is invoked. However, you can use the optional "arrayOfTriggerEvents" entry to define the list of events which should force the overlay to re-align itself with the context element. 
            * This is useful in situations where the layout of the document may change, resulting in the context element's position being modified.
            * </p>
            * <p>
            * The array can contain either event type strings for events the instance publishes (e.g. "beforeShow") or CustomEvent instances. Additionally the following
            * 3 static container event types are also currently supported : <code>"windowResize", "windowScroll", "textResize"</code> (defined in <a href="#property__TRIGGER_MAP">_TRIGGER_MAP</a> private property).
            * </p>
            * </dd>
            * </dl>
            *
            * <p>
            * For example, setting this property to <code>["img1", "tl", "bl"]</code> will 
            * align the Overlay's top left corner to the bottom left corner of the
            * context element with id "img1".
            * </p>
            * <p>
            * Adding the optional trigger values: <code>["img1", "tl", "bl", ["beforeShow", "windowResize"]]</code>,
            * will re-align the overlay position, whenever the "beforeShow" or "windowResize" events are fired.
            * </p>
            *
            * @config context
            * @type Array
            * @default null
            */
            cfg.addProperty(DEFAULT_CONFIG.CONTEXT.key, {
                handler: this.configContext, 
                suppressEvent: DEFAULT_CONFIG.CONTEXT.suppressEvent, 
                supercedes: DEFAULT_CONFIG.CONTEXT.supercedes
            });

            /**
            * Determines whether or not the Overlay should be anchored 
            * to the center of the viewport.
            * 
            * <p>This property can be set to:</p>
            * 
            * <dl>
            * <dt>true</dt>
            * <dd>
            * To enable fixed center positioning
            * <p>
            * When enabled, the overlay will 
            * be positioned in the center of viewport when initially displayed, and 
            * will remain in the center of the viewport whenever the window is 
            * scrolled or resized.
            * </p>
            * <p>
            * If the overlay is too big for the viewport, 
            * it's top left corner will be aligned with the top left corner of the viewport.
            * </p>
            * </dd>
            * <dt>false</dt>
            * <dd>
            * To disable fixed center positioning.
            * <p>In this case the overlay can still be 
            * centered as a one-off operation, by invoking the <code>center()</code> method,
            * however it will not remain centered when the window is scrolled/resized.
            * </dd>
            * <dt>"contained"<dt>
            * <dd>To enable fixed center positioning, as with the <code>true</code> option.
            * <p>However, unlike setting the property to <code>true</code>, 
            * when the property is set to <code>"contained"</code>, if the overlay is 
            * too big for the viewport, it will not get automatically centered when the 
            * user scrolls or resizes the window (until the window is large enough to contain the 
            * overlay). This is useful in cases where the Overlay has both header and footer 
            * UI controls which the user may need to access.
            * </p>
            * </dd>
            * </dl>
            *
            * @config fixedcenter
            * @type Boolean | String
            * @default false
            */
            cfg.addProperty(DEFAULT_CONFIG.FIXED_CENTER.key, {
                handler: this.configFixedCenter,
                value: DEFAULT_CONFIG.FIXED_CENTER.value, 
                validator: DEFAULT_CONFIG.FIXED_CENTER.validator, 
                supercedes: DEFAULT_CONFIG.FIXED_CENTER.supercedes
            });
    
            /**
            * CSS width of the Overlay.
            * @config width
            * @type String
            * @default null
            */
            cfg.addProperty(DEFAULT_CONFIG.WIDTH.key, {
                handler: this.configWidth, 
                suppressEvent: DEFAULT_CONFIG.WIDTH.suppressEvent, 
                supercedes: DEFAULT_CONFIG.WIDTH.supercedes
            });

            /**
            * CSS height of the Overlay.
            * @config height
            * @type String
            * @default null
            */
            cfg.addProperty(DEFAULT_CONFIG.HEIGHT.key, {
                handler: this.configHeight, 
                suppressEvent: DEFAULT_CONFIG.HEIGHT.suppressEvent, 
                supercedes: DEFAULT_CONFIG.HEIGHT.supercedes
            });

            /**
            * Standard module element which should auto fill out the height of the Overlay if the height config property is set.
            * Supported values are "header", "body", "footer".
            *
            * @config autofillheight
            * @type String
            * @default null
            */
            cfg.addProperty(DEFAULT_CONFIG.AUTO_FILL_HEIGHT.key, {
                handler: this.configAutoFillHeight, 
                value : DEFAULT_CONFIG.AUTO_FILL_HEIGHT.value,
                validator : this._validateAutoFill,
                supercedes: DEFAULT_CONFIG.AUTO_FILL_HEIGHT.supercedes
            });

            /**
            * CSS z-index of the Overlay.
            * @config zIndex
            * @type Number
            * @default null
            */
            cfg.addProperty(DEFAULT_CONFIG.ZINDEX.key, {
                handler: this.configzIndex,
                value: DEFAULT_CONFIG.ZINDEX.value
            });

            /**
            * True if the Overlay should be prevented from being positioned 
            * out of the viewport.
            * @config constraintoviewport
            * @type Boolean
            * @default false
            */
            cfg.addProperty(DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.key, {

                handler: this.configConstrainToViewport, 
                value: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.value, 
                validator: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.validator, 
                supercedes: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.supercedes

            });

            /**
            * @config iframe
            * @description Boolean indicating whether or not the Overlay should 
            * have an IFRAME shim; used to prevent SELECT elements from 
            * poking through an Overlay instance in IE6.  When set to "true", 
            * the iframe shim is created when the Overlay instance is intially
            * made visible.
            * @type Boolean
            * @default true for IE6 and below, false for all other browsers.
            */
            cfg.addProperty(DEFAULT_CONFIG.IFRAME.key, {

                handler: this.configIframe, 
                value: DEFAULT_CONFIG.IFRAME.value, 
                validator: DEFAULT_CONFIG.IFRAME.validator, 
                supercedes: DEFAULT_CONFIG.IFRAME.supercedes

            });

            /**
            * @config preventcontextoverlap
            * @description Boolean indicating whether or not the Overlay should overlap its 
            * context element (defined using the "context" configuration property) when the 
            * "constraintoviewport" configuration property is set to "true".
            * @type Boolean
            * @default false
            */
            cfg.addProperty(DEFAULT_CONFIG.PREVENT_CONTEXT_OVERLAP.key, {

                value: DEFAULT_CONFIG.PREVENT_CONTEXT_OVERLAP.value, 
                validator: DEFAULT_CONFIG.PREVENT_CONTEXT_OVERLAP.validator, 
                supercedes: DEFAULT_CONFIG.PREVENT_CONTEXT_OVERLAP.supercedes

            });

        },

        /**
        * Moves the Overlay to the specified position. This function is  
        * identical to calling this.cfg.setProperty("xy", [x,y]);
        * @method moveTo
        * @param {Number} x The Overlay's new x position
        * @param {Number} y The Overlay's new y position
        */
        moveTo: function (x, y) {
            this.cfg.setProperty("xy", [x, y]);
        },

        /**
        * Adds a CSS class ("hide-scrollbars") and removes a CSS class 
        * ("show-scrollbars") to the Overlay to fix a bug in Gecko on Mac OS X 
        * (https://bugzilla.mozilla.org/show_bug.cgi?id=187435)
        * @method hideMacGeckoScrollbars
        */
        hideMacGeckoScrollbars: function () {
            Dom.replaceClass(this.element, "show-scrollbars", "hide-scrollbars");
        },

        /**
        * Adds a CSS class ("show-scrollbars") and removes a CSS class 
        * ("hide-scrollbars") to the Overlay to fix a bug in Gecko on Mac OS X 
        * (https://bugzilla.mozilla.org/show_bug.cgi?id=187435)
        * @method showMacGeckoScrollbars
        */
        showMacGeckoScrollbars: function () {
            Dom.replaceClass(this.element, "hide-scrollbars", "show-scrollbars");
        },

        /**
         * Internal implementation to set the visibility of the overlay in the DOM.
         *
         * @method _setDomVisibility
         * @param {boolean} visible Whether to show or hide the Overlay's outer element
         * @protected
         */
        _setDomVisibility : function(show) {
            Dom.setStyle(this.element, "visibility", (show) ? "visible" : "hidden");

            if (show) {
                Dom.removeClass(this.element, "yui-overlay-hidden");
            } else {
                Dom.addClass(this.element, "yui-overlay-hidden");
            }
        },

        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        /**
        * The default event handler fired when the "visible" property is 
        * changed.  This method is responsible for firing showEvent
        * and hideEvent.
        * @method configVisible
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configVisible: function (type, args, obj) {

            var visible = args[0],
                currentVis = Dom.getStyle(this.element, "visibility"),
                effect = this.cfg.getProperty("effect"),
                effectInstances = [],
                isMacGecko = (this.platform == "mac" && UA.gecko),
                alreadySubscribed = Config.alreadySubscribed,
                eff, ei, e, i, j, k, h,
                nEffects,
                nEffectInstances;

            if (currentVis == "inherit") {
                e = this.element.parentNode;

                while (e.nodeType != 9 && e.nodeType != 11) {
                    currentVis = Dom.getStyle(e, "visibility");

                    if (currentVis != "inherit") {
                        break;
                    }

                    e = e.parentNode;
                }

                if (currentVis == "inherit") {
                    currentVis = "visible";
                }
            }

            if (effect) {
                if (effect instanceof Array) {
                    nEffects = effect.length;

                    for (i = 0; i < nEffects; i++) {
                        eff = effect[i];
                        effectInstances[effectInstances.length] = 
                            eff.effect(this, eff.duration);

                    }
                } else {
                    effectInstances[effectInstances.length] = 
                        effect.effect(this, effect.duration);
                }
            }

            if (visible) { // Show
                if (isMacGecko) {
                    this.showMacGeckoScrollbars();
                }

                if (effect) { // Animate in
                    if (visible) { // Animate in if not showing
                        if (currentVis != "visible" || currentVis === "") {
                            this.beforeShowEvent.fire();
                            nEffectInstances = effectInstances.length;

                            for (j = 0; j < nEffectInstances; j++) {
                                ei = effectInstances[j];
                                if (j === 0 && !alreadySubscribed(
                                        ei.animateInCompleteEvent, 
                                        this.showEvent.fire, this.showEvent)) {

                                    /*
                                         Delegate showEvent until end 
                                         of animateInComplete
                                    */

                                    ei.animateInCompleteEvent.subscribe(
                                     this.showEvent.fire, this.showEvent, true);
                                }
                                ei.animateIn();
                            }
                        }
                    }
                } else { // Show
                    if (currentVis != "visible" || currentVis === "") {
                        this.beforeShowEvent.fire();

                        this._setDomVisibility(true);

                        this.cfg.refireEvent("iframe");
                        this.showEvent.fire();
                    } else {
                        this._setDomVisibility(true);
                    }
                }
            } else { // Hide

                if (isMacGecko) {
                    this.hideMacGeckoScrollbars();
                }

                if (effect) { // Animate out if showing
                    if (currentVis == "visible") {
                        this.beforeHideEvent.fire();

                        nEffectInstances = effectInstances.length;
                        for (k = 0; k < nEffectInstances; k++) {
                            h = effectInstances[k];
    
                            if (k === 0 && !alreadySubscribed(
                                h.animateOutCompleteEvent, this.hideEvent.fire, 
                                this.hideEvent)) {
    
                                /*
                                     Delegate hideEvent until end 
                                     of animateOutComplete
                                */
    
                                h.animateOutCompleteEvent.subscribe(
                                    this.hideEvent.fire, this.hideEvent, true);
    
                            }
                            h.animateOut();
                        }

                    } else if (currentVis === "") {
                        this._setDomVisibility(false);
                    }

                } else { // Simple hide

                    if (currentVis == "visible" || currentVis === "") {
                        this.beforeHideEvent.fire();
                        this._setDomVisibility(false);
                        this.hideEvent.fire();
                    } else {
                        this._setDomVisibility(false);
                    }
                }
            }
        },

        /**
        * Fixed center event handler used for centering on scroll/resize, but only if 
        * the overlay is visible and, if "fixedcenter" is set to "contained", only if 
        * the overlay fits within the viewport.
        *
        * @method doCenterOnDOMEvent
        */
        doCenterOnDOMEvent: function () {
            var cfg = this.cfg,
                fc = cfg.getProperty("fixedcenter");

            if (cfg.getProperty("visible")) {
                if (fc && (fc !== _CONTAINED || this.fitsInViewport())) {
                    this.center();
                }
            }
        },

        /**
         * Determines if the Overlay (including the offset value defined by Overlay.VIEWPORT_OFFSET) 
         * will fit entirely inside the viewport, in both dimensions - width and height.
         * 
         * @method fitsInViewport
         * @return boolean true if the Overlay will fit, false if not
         */
        fitsInViewport : function() {
            var nViewportOffset = Overlay.VIEWPORT_OFFSET,
                element = this.element,
                elementWidth = element.offsetWidth,
                elementHeight = element.offsetHeight,
                viewportWidth = Dom.getViewportWidth(),
                viewportHeight = Dom.getViewportHeight();

            return ((elementWidth + nViewportOffset < viewportWidth) && (elementHeight + nViewportOffset < viewportHeight));
        },

        /**
        * The default event handler fired when the "fixedcenter" property 
        * is changed.
        * @method configFixedCenter
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configFixedCenter: function (type, args, obj) {

            var val = args[0],
                alreadySubscribed = Config.alreadySubscribed,
                windowResizeEvent = Overlay.windowResizeEvent,
                windowScrollEvent = Overlay.windowScrollEvent;

            if (val) {
                this.center();

                if (!alreadySubscribed(this.beforeShowEvent, this.center)) {
                    this.beforeShowEvent.subscribe(this.center);
                }

                if (!alreadySubscribed(windowResizeEvent, this.doCenterOnDOMEvent, this)) {
                    windowResizeEvent.subscribe(this.doCenterOnDOMEvent, this, true);
                }

                if (!alreadySubscribed(windowScrollEvent, this.doCenterOnDOMEvent, this)) {
                    windowScrollEvent.subscribe(this.doCenterOnDOMEvent, this, true);
                }

            } else {
                this.beforeShowEvent.unsubscribe(this.center);

                windowResizeEvent.unsubscribe(this.doCenterOnDOMEvent, this);
                windowScrollEvent.unsubscribe(this.doCenterOnDOMEvent, this);
            }
        },

        /**
        * The default event handler fired when the "height" property is changed.
        * @method configHeight
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configHeight: function (type, args, obj) {

            var height = args[0],
                el = this.element;

            Dom.setStyle(el, "height", height);
            this.cfg.refireEvent("iframe");
        },

        /**
         * The default event handler fired when the "autofillheight" property is changed.
         * @method configAutoFillHeight
         *
         * @param {String} type The CustomEvent type (usually the property name)
         * @param {Object[]} args The CustomEvent arguments. For configuration 
         * handlers, args[0] will equal the newly applied value for the property.
         * @param {Object} obj The scope object. For configuration handlers, 
         * this will usually equal the owner.
         */
        configAutoFillHeight: function (type, args, obj) {
            var fillEl = args[0],
                cfg = this.cfg,
                autoFillHeight = "autofillheight",
                height = "height",
                currEl = cfg.getProperty(autoFillHeight),
                autoFill = this._autoFillOnHeightChange;

            cfg.unsubscribeFromConfigEvent(height, autoFill);
            Module.textResizeEvent.unsubscribe(autoFill);
            this.changeContentEvent.unsubscribe(autoFill);

            if (currEl && fillEl !== currEl && this[currEl]) {
                Dom.setStyle(this[currEl], height, "");
            }

            if (fillEl) {
                fillEl = Lang.trim(fillEl.toLowerCase());

                cfg.subscribeToConfigEvent(height, autoFill, this[fillEl], this);
                Module.textResizeEvent.subscribe(autoFill, this[fillEl], this);
                this.changeContentEvent.subscribe(autoFill, this[fillEl], this);

                cfg.setProperty(autoFillHeight, fillEl, true);
            }
        },

        /**
        * The default event handler fired when the "width" property is changed.
        * @method configWidth
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configWidth: function (type, args, obj) {

            var width = args[0],
                el = this.element;

            Dom.setStyle(el, "width", width);
            this.cfg.refireEvent("iframe");
        },

        /**
        * The default event handler fired when the "zIndex" property is changed.
        * @method configzIndex
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configzIndex: function (type, args, obj) {

            var zIndex = args[0],
                el = this.element;

            if (! zIndex) {
                zIndex = Dom.getStyle(el, "zIndex");
                if (! zIndex || isNaN(zIndex)) {
                    zIndex = 0;
                }
            }

            if (this.iframe || this.cfg.getProperty("iframe") === true) {
                if (zIndex <= 0) {
                    zIndex = 1;
                }
            }

            Dom.setStyle(el, "zIndex", zIndex);
            this.cfg.setProperty("zIndex", zIndex, true);

            if (this.iframe) {
                this.stackIframe();
            }
        },

        /**
        * The default event handler fired when the "xy" property is changed.
        * @method configXY
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configXY: function (type, args, obj) {

            var pos = args[0],
                x = pos[0],
                y = pos[1];

            this.cfg.setProperty("x", x);
            this.cfg.setProperty("y", y);

            this.beforeMoveEvent.fire([x, y]);

            x = this.cfg.getProperty("x");
            y = this.cfg.getProperty("y");


            this.cfg.refireEvent("iframe");
            this.moveEvent.fire([x, y]);
        },

        /**
        * The default event handler fired when the "x" property is changed.
        * @method configX
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configX: function (type, args, obj) {

            var x = args[0],
                y = this.cfg.getProperty("y");

            this.cfg.setProperty("x", x, true);
            this.cfg.setProperty("y", y, true);

            this.beforeMoveEvent.fire([x, y]);

            x = this.cfg.getProperty("x");
            y = this.cfg.getProperty("y");
            
            Dom.setX(this.element, x, true);

            this.cfg.setProperty("xy", [x, y], true);

            this.cfg.refireEvent("iframe");
            this.moveEvent.fire([x, y]);
        },

        /**
        * The default event handler fired when the "y" property is changed.
        * @method configY
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configY: function (type, args, obj) {

            var x = this.cfg.getProperty("x"),
                y = args[0];

            this.cfg.setProperty("x", x, true);
            this.cfg.setProperty("y", y, true);

            this.beforeMoveEvent.fire([x, y]);

            x = this.cfg.getProperty("x");
            y = this.cfg.getProperty("y");

            Dom.setY(this.element, y, true);

            this.cfg.setProperty("xy", [x, y], true);

            this.cfg.refireEvent("iframe");
            this.moveEvent.fire([x, y]);
        },
        
        /**
        * Shows the iframe shim, if it has been enabled.
        * @method showIframe
        */
        showIframe: function () {

            var oIFrame = this.iframe,
                oParentNode;

            if (oIFrame) {
                oParentNode = this.element.parentNode;

                if (oParentNode != oIFrame.parentNode) {
                    this._addToParent(oParentNode, oIFrame);
                }
                oIFrame.style.display = "block";
            }
        },

        /**
        * Hides the iframe shim, if it has been enabled.
        * @method hideIframe
        */
        hideIframe: function () {
            if (this.iframe) {
                this.iframe.style.display = "none";
            }
        },

        /**
        * Syncronizes the size and position of iframe shim to that of its 
        * corresponding Overlay instance.
        * @method syncIframe
        */
        syncIframe: function () {

            var oIFrame = this.iframe,
                oElement = this.element,
                nOffset = Overlay.IFRAME_OFFSET,
                nDimensionOffset = (nOffset * 2),
                aXY;

            if (oIFrame) {
                // Size <iframe>
                oIFrame.style.width = (oElement.offsetWidth + nDimensionOffset + "px");
                oIFrame.style.height = (oElement.offsetHeight + nDimensionOffset + "px");

                // Position <iframe>
                aXY = this.cfg.getProperty("xy");

                if (!Lang.isArray(aXY) || (isNaN(aXY[0]) || isNaN(aXY[1]))) {
                    this.syncPosition();
                    aXY = this.cfg.getProperty("xy");
                }
                Dom.setXY(oIFrame, [(aXY[0] - nOffset), (aXY[1] - nOffset)]);
            }
        },

        /**
         * Sets the zindex of the iframe shim, if it exists, based on the zindex of
         * the Overlay element. The zindex of the iframe is set to be one less 
         * than the Overlay element's zindex.
         * 
         * <p>NOTE: This method will not bump up the zindex of the Overlay element
         * to ensure that the iframe shim has a non-negative zindex.
         * If you require the iframe zindex to be 0 or higher, the zindex of 
         * the Overlay element should be set to a value greater than 0, before 
         * this method is called.
         * </p>
         * @method stackIframe
         */
        stackIframe: function () {
            if (this.iframe) {
                var overlayZ = Dom.getStyle(this.element, "zIndex");
                if (!YAHOO.lang.isUndefined(overlayZ) && !isNaN(overlayZ)) {
                    Dom.setStyle(this.iframe, "zIndex", (overlayZ - 1));
                }
            }
        },

        /**
        * The default event handler fired when the "iframe" property is changed.
        * @method configIframe
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configIframe: function (type, args, obj) {

            var bIFrame = args[0];

            function createIFrame() {

                var oIFrame = this.iframe,
                    oElement = this.element,
                    oParent;

                if (!oIFrame) {
                    if (!m_oIFrameTemplate) {
                        m_oIFrameTemplate = document.createElement("iframe");

                        if (this.isSecure) {
                            m_oIFrameTemplate.src = Overlay.IFRAME_SRC;
                        }

                        /*
                            Set the opacity of the <iframe> to 0 so that it 
                            doesn't modify the opacity of any transparent 
                            elements that may be on top of it (like a shadow).
                        */
                        if (UA.ie) {
                            m_oIFrameTemplate.style.filter = "alpha(opacity=0)";
                            /*
                                 Need to set the "frameBorder" property to 0 
                                 supress the default <iframe> border in IE.  
                                 Setting the CSS "border" property alone 
                                 doesn't supress it.
                            */
                            m_oIFrameTemplate.frameBorder = 0;
                        }
                        else {
                            m_oIFrameTemplate.style.opacity = "0";
                        }

                        m_oIFrameTemplate.style.position = "absolute";
                        m_oIFrameTemplate.style.border = "none";
                        m_oIFrameTemplate.style.margin = "0";
                        m_oIFrameTemplate.style.padding = "0";
                        m_oIFrameTemplate.style.display = "none";
                        m_oIFrameTemplate.tabIndex = -1;
                    }

                    oIFrame = m_oIFrameTemplate.cloneNode(false);
                    oParent = oElement.parentNode;

                    var parentNode = oParent || document.body;

                    this._addToParent(parentNode, oIFrame);
                    this.iframe = oIFrame;
                }

                /*
                     Show the <iframe> before positioning it since the "setXY" 
                     method of DOM requires the element be in the document 
                     and visible.
                */
                this.showIframe();

                /*
                     Syncronize the size and position of the <iframe> to that 
                     of the Overlay.
                */
                this.syncIframe();
                this.stackIframe();

                // Add event listeners to update the <iframe> when necessary
                if (!this._hasIframeEventListeners) {
                    this.showEvent.subscribe(this.showIframe);
                    this.hideEvent.subscribe(this.hideIframe);
                    this.changeContentEvent.subscribe(this.syncIframe);

                    this._hasIframeEventListeners = true;
                }
            }

            function onBeforeShow() {
                createIFrame.call(this);
                this.beforeShowEvent.unsubscribe(onBeforeShow);
                this._iframeDeferred = false;
            }

            if (bIFrame) { // <iframe> shim is enabled

                if (this.cfg.getProperty("visible")) {
                    createIFrame.call(this);
                } else {
                    if (!this._iframeDeferred) {
                        this.beforeShowEvent.subscribe(onBeforeShow);
                        this._iframeDeferred = true;
                    }
                }

            } else {    // <iframe> shim is disabled
                this.hideIframe();

                if (this._hasIframeEventListeners) {
                    this.showEvent.unsubscribe(this.showIframe);
                    this.hideEvent.unsubscribe(this.hideIframe);
                    this.changeContentEvent.unsubscribe(this.syncIframe);

                    this._hasIframeEventListeners = false;
                }
            }
        },

        /**
         * Set's the container's XY value from DOM if not already set.
         * 
         * Differs from syncPosition, in that the XY value is only sync'd with DOM if 
         * not already set. The method also refire's the XY config property event, so any
         * beforeMove, Move event listeners are invoked.
         * 
         * @method _primeXYFromDOM
         * @protected
         */
        _primeXYFromDOM : function() {
            if (YAHOO.lang.isUndefined(this.cfg.getProperty("xy"))) {
                // Set CFG XY based on DOM XY
                this.syncPosition();
                // Account for XY being set silently in syncPosition (no moveTo fired/called)
                this.cfg.refireEvent("xy");
                this.beforeShowEvent.unsubscribe(this._primeXYFromDOM);
            }
        },

        /**
        * The default event handler fired when the "constraintoviewport" 
        * property is changed.
        * @method configConstrainToViewport
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for 
        * the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configConstrainToViewport: function (type, args, obj) {
            var val = args[0];

            if (val) {
                if (! Config.alreadySubscribed(this.beforeMoveEvent, this.enforceConstraints, this)) {
                    this.beforeMoveEvent.subscribe(this.enforceConstraints, this, true);
                }
                if (! Config.alreadySubscribed(this.beforeShowEvent, this._primeXYFromDOM)) {
                    this.beforeShowEvent.subscribe(this._primeXYFromDOM);
                }
            } else {
                this.beforeShowEvent.unsubscribe(this._primeXYFromDOM);
                this.beforeMoveEvent.unsubscribe(this.enforceConstraints, this);
            }
        },

         /**
        * The default event handler fired when the "context" property
        * is changed.
        * 
        * @method configContext
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configContext: function (type, args, obj) {

            var contextArgs = args[0],
                contextEl,
                elementMagnetCorner,
                contextMagnetCorner,
                triggers,
                defTriggers = this.CONTEXT_TRIGGERS;

            if (contextArgs) {

                contextEl = contextArgs[0];
                elementMagnetCorner = contextArgs[1];
                contextMagnetCorner = contextArgs[2];
                triggers = contextArgs[3];

                if (defTriggers && defTriggers.length > 0) {
                    triggers = (triggers || []).concat(defTriggers);
                }

                if (contextEl) {
                    if (typeof contextEl == "string") {
                        this.cfg.setProperty("context", [
                                document.getElementById(contextEl), 
                                elementMagnetCorner,
                                contextMagnetCorner,
                                triggers ],
                                true);
                    }

                    if (elementMagnetCorner && contextMagnetCorner) {
                        this.align(elementMagnetCorner, contextMagnetCorner);
                    }

                    if (this._contextTriggers) {
                        // Unsubscribe Old Set
                        this._processTriggers(this._contextTriggers, _UNSUBSCRIBE, this._alignOnTrigger);
                    }

                    if (triggers) {
                        // Subscribe New Set
                        this._processTriggers(triggers, _SUBSCRIBE, this._alignOnTrigger);
                        this._contextTriggers = triggers;
                    }
                }
            }
        },

        /**
         * Custom Event handler for context alignment triggers. Invokes the align method
         * 
         * @method _alignOnTrigger
         * @protected
         * 
         * @param {String} type The event type (not used by the default implementation)
         * @param {Any[]} args The array of arguments for the trigger event (not used by the default implementation)
         */
        _alignOnTrigger: function(type, args) {
            this.align();
        },

        /**
         * Helper method to locate the custom event instance for the event name string
         * passed in. As a convenience measure, any custom events passed in are returned.
         *
         * @method _findTriggerCE
         * @private
         *
         * @param {String|CustomEvent} t Either a CustomEvent, or event type (e.g. "windowScroll") for which a 
         * custom event instance needs to be looked up from the Overlay._TRIGGER_MAP.
         */
        _findTriggerCE : function(t) {
            var tce = null;
            if (t instanceof CustomEvent) {
                tce = t;
            } else if (Overlay._TRIGGER_MAP[t]) {
                tce = Overlay._TRIGGER_MAP[t];
            }
            return tce;
        },

        /**
         * Utility method that subscribes or unsubscribes the given 
         * function from the list of trigger events provided.
         *
         * @method _processTriggers
         * @protected 
         *
         * @param {Array[String|CustomEvent]} triggers An array of either CustomEvents, event type strings 
         * (e.g. "beforeShow", "windowScroll") to/from which the provided function should be 
         * subscribed/unsubscribed respectively.
         *
         * @param {String} mode Either "subscribe" or "unsubscribe", specifying whether or not
         * we are subscribing or unsubscribing trigger listeners
         * 
         * @param {Function} fn The function to be subscribed/unsubscribed to/from the trigger event.
         * Context is always set to the overlay instance, and no additional object argument 
         * get passed to the subscribed function.
         */
        _processTriggers : function(triggers, mode, fn) {
            var t, tce;

            for (var i = 0, l = triggers.length; i < l; ++i) {
                t = triggers[i];
                tce = this._findTriggerCE(t);
                if (tce) {
                    tce[mode](fn, this, true);
                } else {
                    this[mode](t, fn);
                }
            }
        },

        // END BUILT-IN PROPERTY EVENT HANDLERS //
        /**
        * Aligns the Overlay to its context element using the specified corner 
        * points (represented by the constants TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, 
        * and BOTTOM_RIGHT.
        * @method align
        * @param {String} elementAlign  The String representing the corner of 
        * the Overlay that should be aligned to the context element
        * @param {String} contextAlign  The corner of the context element 
        * that the elementAlign corner should stick to.
        */
        align: function (elementAlign, contextAlign) {

            var contextArgs = this.cfg.getProperty("context"),
                me = this,
                context,
                element,
                contextRegion;

            function doAlign(v, h) {
    
                switch (elementAlign) {
    
                case Overlay.TOP_LEFT:
                    me.moveTo(h, v);
                    break;
    
                case Overlay.TOP_RIGHT:
                    me.moveTo((h - element.offsetWidth), v);
                    break;
    
                case Overlay.BOTTOM_LEFT:
                    me.moveTo(h, (v - element.offsetHeight));
                    break;
    
                case Overlay.BOTTOM_RIGHT:
                    me.moveTo((h - element.offsetWidth), 
                        (v - element.offsetHeight));
                    break;
                }
            }
    
    
            if (contextArgs) {
            
                context = contextArgs[0];
                element = this.element;
                me = this;
                
                if (! elementAlign) {
                    elementAlign = contextArgs[1];
                }
                
                if (! contextAlign) {
                    contextAlign = contextArgs[2];
                }
                
                if (element && context) {
                    contextRegion = Dom.getRegion(context);

                    switch (contextAlign) {
    
                    case Overlay.TOP_LEFT:
                        doAlign(contextRegion.top, contextRegion.left);
                        break;
    
                    case Overlay.TOP_RIGHT:
                        doAlign(contextRegion.top, contextRegion.right);
                        break;
    
                    case Overlay.BOTTOM_LEFT:
                        doAlign(contextRegion.bottom, contextRegion.left);
                        break;
    
                    case Overlay.BOTTOM_RIGHT:
                        doAlign(contextRegion.bottom, contextRegion.right);
                        break;
                    }
    
                }
    
            }
            
        },

        /**
        * The default event handler executed when the moveEvent is fired, if the 
        * "constraintoviewport" is set to true.
        * @method enforceConstraints
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        enforceConstraints: function (type, args, obj) {
            var pos = args[0];
            
            var cXY = this.getConstrainedXY(pos[0], pos[1]);
            this.cfg.setProperty("x", cXY[0], true);
            this.cfg.setProperty("y", cXY[1], true);
            this.cfg.setProperty("xy", cXY, true);
        },


        /**
         * Given x coordinate value, returns the calculated x coordinate required to 
         * position the Overlay if it is to be constrained to the viewport, based on the 
         * current element size, viewport dimensions and scroll values.
         *
         * @param {Number} x The X coordinate value to be constrained
         * @return {Number} The constrained x coordinate
         */		
        getConstrainedX: function (x) {

            var oOverlay = this,
                oOverlayEl = oOverlay.element,
                nOverlayOffsetWidth = oOverlayEl.offsetWidth,

                nViewportOffset = Overlay.VIEWPORT_OFFSET,
                viewPortWidth = Dom.getViewportWidth(),
                scrollX = Dom.getDocumentScrollLeft(),

                bCanConstrain = (nOverlayOffsetWidth + nViewportOffset < viewPortWidth),

                aContext = this.cfg.getProperty("context"),
                oContextEl,
                nContextElX,
                nContextElWidth,

                bFlipped = false,

                nLeftRegionWidth,
                nRightRegionWidth,

                leftConstraint = scrollX + nViewportOffset,
                rightConstraint = scrollX + viewPortWidth - nOverlayOffsetWidth - nViewportOffset,

                xNew = x,

                oOverlapPositions = {

                    "tltr": true,
                    "blbr": true,
                    "brbl": true,
                    "trtl": true
                
                };


            var flipHorizontal = function () {
            
                var nNewX;
            
                if ((oOverlay.cfg.getProperty("x") - scrollX) > nContextElX) {
                    nNewX = (nContextElX - nOverlayOffsetWidth);
                }
                else {
                    nNewX = (nContextElX + nContextElWidth);
                }
                
    
                oOverlay.cfg.setProperty("x", (nNewX + scrollX), true);
    
                return nNewX;
    
            };



            /*
                 Uses the context element's position to calculate the availble width 
                 to the right and left of it to display its corresponding Overlay.
            */

            var getDisplayRegionWidth = function () {

                // The Overlay is to the right of the context element

                if ((oOverlay.cfg.getProperty("x") - scrollX) > nContextElX) {
                    return (nRightRegionWidth - nViewportOffset);
                }
                else {	// The Overlay is to the left of the context element
                    return (nLeftRegionWidth - nViewportOffset);
                }
            
            };
    

            /*
                Positions the Overlay to the left or right of the context element so that it remains 
                inside the viewport.
            */
    
            var setHorizontalPosition = function () {
            
                var nDisplayRegionWidth = getDisplayRegionWidth(),
                    fnReturnVal;

                if (nOverlayOffsetWidth > nDisplayRegionWidth) {
        
                    if (bFlipped) {
        
                        /*
                             All possible positions and values have been 
                             tried, but none were successful, so fall back 
                             to the original size and position.
                        */
    
                        flipHorizontal();
                        
                    }
                    else {
        
                        flipHorizontal();

                        bFlipped = true;
        
                        fnReturnVal = setHorizontalPosition();
        
                    }
                
                }
        
                return fnReturnVal;
            
            };

            // Determine if the current value for the Overlay's "x" configuration property will
            // result in the Overlay being positioned outside the boundaries of the viewport
            
            if (x < leftConstraint || x > rightConstraint) {

                // The current value for the Overlay's "x" configuration property WILL
                // result in the Overlay being positioned outside the boundaries of the viewport

                if (bCanConstrain) {

                    //	If the "preventcontextoverlap" configuration property is set to "true", 
                    //	try to flip the Overlay to both keep it inside the boundaries of the 
                    //	viewport AND from overlaping its context element.
    
                    if (this.cfg.getProperty("preventcontextoverlap") && aContext && 
                        oOverlapPositions[(aContext[1] + aContext[2])]) {
        
                        oContextEl = aContext[0];
                        nContextElX = Dom.getX(oContextEl) - scrollX;
                        nContextElWidth = oContextEl.offsetWidth;
                        nLeftRegionWidth = nContextElX;
                        nRightRegionWidth = (viewPortWidth - (nContextElX + nContextElWidth));
        
                        setHorizontalPosition();
                        
                        xNew = this.cfg.getProperty("x");
                    
                    }
                    else {

                        if (x < leftConstraint) {
                            xNew = leftConstraint;
                        } else if (x > rightConstraint) {
                            xNew = rightConstraint;
                        }

                    }

                } else {
                    //	The "x" configuration property cannot be set to a value that will keep
                    //	entire Overlay inside the boundary of the viewport.  Therefore, set  
                    //	the "x" configuration property to scrollY to keep as much of the 
                    //	Overlay inside the viewport as possible.                
                    xNew = nViewportOffset + scrollX;
                }

            }

            return xNew;
        
        },


        /**
         * Given y coordinate value, returns the calculated y coordinate required to 
         * position the Overlay if it is to be constrained to the viewport, based on the 
         * current element size, viewport dimensions and scroll values.
         *
         * @param {Number} y The Y coordinate value to be constrained
         * @return {Number} The constrained y coordinate
         */		
        getConstrainedY: function (y) {

            var oOverlay = this,
                oOverlayEl = oOverlay.element,
                nOverlayOffsetHeight = oOverlayEl.offsetHeight,
            
                nViewportOffset = Overlay.VIEWPORT_OFFSET,
                viewPortHeight = Dom.getViewportHeight(),
                scrollY = Dom.getDocumentScrollTop(),

                bCanConstrain = (nOverlayOffsetHeight + nViewportOffset < viewPortHeight),

                aContext = this.cfg.getProperty("context"),
                oContextEl,
                nContextElY,
                nContextElHeight,

                bFlipped = false,

                nTopRegionHeight,
                nBottomRegionHeight,

                topConstraint = scrollY + nViewportOffset,
                bottomConstraint = scrollY + viewPortHeight - nOverlayOffsetHeight - nViewportOffset,

                yNew = y,
                
                oOverlapPositions = {
                    "trbr": true,
                    "tlbl": true,
                    "bltl": true,
                    "brtr": true
                };


            var flipVertical = function () {

                var nNewY;
            
                // The Overlay is below the context element, flip it above
                if ((oOverlay.cfg.getProperty("y") - scrollY) > nContextElY) { 
                    nNewY = (nContextElY - nOverlayOffsetHeight);
                }
                else {	// The Overlay is above the context element, flip it below
                    nNewY = (nContextElY + nContextElHeight);
                }
    
                oOverlay.cfg.setProperty("y", (nNewY + scrollY), true);
                
                return nNewY;
            
            };


            /*
                 Uses the context element's position to calculate the availble height 
                 above and below it to display its corresponding Overlay.
            */

            var getDisplayRegionHeight = function () {

                // The Overlay is below the context element
                if ((oOverlay.cfg.getProperty("y") - scrollY) > nContextElY) {
                    return (nBottomRegionHeight - nViewportOffset);				
                }
                else {	// The Overlay is above the context element
                    return (nTopRegionHeight - nViewportOffset);				
                }
        
            };


            /*
                Trys to place the Overlay in the best possible position (either above or 
                below its corresponding context element).
            */
        
            var setVerticalPosition = function () {
        
                var nDisplayRegionHeight = getDisplayRegionHeight(),
                    fnReturnVal;
                    

                if (nOverlayOffsetHeight > nDisplayRegionHeight) {
                   
                    if (bFlipped) {
        
                        /*
                             All possible positions and values for the 
                             "maxheight" configuration property have been 
                             tried, but none were successful, so fall back 
                             to the original size and position.
                        */
    
                        flipVertical();
                        
                    }
                    else {
        
                        flipVertical();

                        bFlipped = true;
        
                        fnReturnVal = setVerticalPosition();
        
                    }
                
                }
        
                return fnReturnVal;
        
            };


            // Determine if the current value for the Overlay's "y" configuration property will
            // result in the Overlay being positioned outside the boundaries of the viewport

            if (y < topConstraint || y  > bottomConstraint) {
        
                // The current value for the Overlay's "y" configuration property WILL
                // result in the Overlay being positioned outside the boundaries of the viewport

                if (bCanConstrain) {	

                    //	If the "preventcontextoverlap" configuration property is set to "true", 
                    //	try to flip the Overlay to both keep it inside the boundaries of the 
                    //	viewport AND from overlaping its context element.
        
                    if (this.cfg.getProperty("preventcontextoverlap") && aContext && 
                        oOverlapPositions[(aContext[1] + aContext[2])]) {
        
                        oContextEl = aContext[0];
                        nContextElHeight = oContextEl.offsetHeight;
                        nContextElY = (Dom.getY(oContextEl) - scrollY);
        
                        nTopRegionHeight = nContextElY;
                        nBottomRegionHeight = (viewPortHeight - (nContextElY + nContextElHeight));
        
                        setVerticalPosition();
        
                        yNew = oOverlay.cfg.getProperty("y");
        
                    }
                    else {

                        if (y < topConstraint) {
                            yNew  = topConstraint;
                        } else if (y  > bottomConstraint) {
                            yNew  = bottomConstraint;
                        }
                    
                    }
                
                }
                else {
                
                    //	The "y" configuration property cannot be set to a value that will keep
                    //	entire Overlay inside the boundary of the viewport.  Therefore, set  
                    //	the "y" configuration property to scrollY to keep as much of the 
                    //	Overlay inside the viewport as possible.
                
                    yNew = nViewportOffset + scrollY;
                }
        
            }

            return yNew;
        },


        /**
         * Given x, y coordinate values, returns the calculated coordinates required to 
         * position the Overlay if it is to be constrained to the viewport, based on the 
         * current element size, viewport dimensions and scroll values.
         *
         * @param {Number} x The X coordinate value to be constrained
         * @param {Number} y The Y coordinate value to be constrained
         * @return {Array} The constrained x and y coordinates at index 0 and 1 respectively;
         */
        getConstrainedXY: function(x, y) {
            return [this.getConstrainedX(x), this.getConstrainedY(y)];
        },

        /**
        * Centers the container in the viewport.
        * @method center
        */
        center: function () {

            var nViewportOffset = Overlay.VIEWPORT_OFFSET,
                elementWidth = this.element.offsetWidth,
                elementHeight = this.element.offsetHeight,
                viewPortWidth = Dom.getViewportWidth(),
                viewPortHeight = Dom.getViewportHeight(),
                x,
                y;

            if (elementWidth < viewPortWidth) {
                x = (viewPortWidth / 2) - (elementWidth / 2) + Dom.getDocumentScrollLeft();
            } else {
                x = nViewportOffset + Dom.getDocumentScrollLeft();
            }

            if (elementHeight < viewPortHeight) {
                y = (viewPortHeight / 2) - (elementHeight / 2) + Dom.getDocumentScrollTop();
            } else {
                y = nViewportOffset + Dom.getDocumentScrollTop();
            }

            this.cfg.setProperty("xy", [parseInt(x, 10), parseInt(y, 10)]);
            this.cfg.refireEvent("iframe");

            if (UA.webkit) {
                this.forceContainerRedraw();
            }
        },

        /**
        * Synchronizes the Panel's "xy", "x", and "y" properties with the 
        * Panel's position in the DOM. This is primarily used to update  
        * position information during drag & drop.
        * @method syncPosition
        */
        syncPosition: function () {

            var pos = Dom.getXY(this.element);

            this.cfg.setProperty("x", pos[0], true);
            this.cfg.setProperty("y", pos[1], true);
            this.cfg.setProperty("xy", pos, true);

        },

        /**
        * Event handler fired when the resize monitor element is resized.
        * @method onDomResize
        * @param {DOMEvent} e The resize DOM event
        * @param {Object} obj The scope object
        */
        onDomResize: function (e, obj) {

            var me = this;

            Overlay.superclass.onDomResize.call(this, e, obj);

            setTimeout(function () {
                me.syncPosition();
                me.cfg.refireEvent("iframe");
                me.cfg.refireEvent("context");
            }, 0);
        },

        /**
         * Determines the content box height of the given element (height of the element, without padding or borders) in pixels.
         *
         * @method _getComputedHeight
         * @private
         * @param {HTMLElement} el The element for which the content height needs to be determined
         * @return {Number} The content box height of the given element, or null if it could not be determined.
         */
        _getComputedHeight : (function() {

            if (document.defaultView && document.defaultView.getComputedStyle) {
                return function(el) {
                    var height = null;
                    if (el.ownerDocument && el.ownerDocument.defaultView) {
                        var computed = el.ownerDocument.defaultView.getComputedStyle(el, '');
                        if (computed) {
                            height = parseInt(computed.height, 10);
                        }
                    }
                    return (Lang.isNumber(height)) ? height : null;
                };
            } else {
                return function(el) {
                    var height = null;
                    if (el.style.pixelHeight) {
                        height = el.style.pixelHeight;
                    }
                    return (Lang.isNumber(height)) ? height : null;
                };
            }
        })(),

        /**
         * autofillheight validator. Verifies that the autofill value is either null 
         * or one of the strings : "body", "header" or "footer".
         *
         * @method _validateAutoFillHeight
         * @protected
         * @param {String} val
         * @return true, if valid, false otherwise
         */
        _validateAutoFillHeight : function(val) {
            return (!val) || (Lang.isString(val) && Overlay.STD_MOD_RE.test(val));
        },

        /**
         * The default custom event handler executed when the overlay's height is changed, 
         * if the autofillheight property has been set.
         *
         * @method _autoFillOnHeightChange
         * @protected
         * @param {String} type The event type
         * @param {Array} args The array of arguments passed to event subscribers
         * @param {HTMLElement} el The header, body or footer element which is to be resized to fill
         * out the containers height
         */
        _autoFillOnHeightChange : function(type, args, el) {
            var height = this.cfg.getProperty("height");
            if ((height && height !== "auto") || (height === 0)) {
                this.fillHeight(el);
            }
        },

        /**
         * Returns the sub-pixel height of the el, using getBoundingClientRect, if available,
         * otherwise returns the offsetHeight
         * @method _getPreciseHeight
         * @private
         * @param {HTMLElement} el
         * @return {Float} The sub-pixel height if supported by the browser, else the rounded height.
         */
        _getPreciseHeight : function(el) {
            var height = el.offsetHeight;

            if (el.getBoundingClientRect) {
                var rect = el.getBoundingClientRect();
                height = rect.bottom - rect.top;
            }

            return height;
        },

        /**
         * <p>
         * Sets the height on the provided header, body or footer element to 
         * fill out the height of the container. It determines the height of the 
         * containers content box, based on it's configured height value, and 
         * sets the height of the autofillheight element to fill out any 
         * space remaining after the other standard module element heights 
         * have been accounted for.
         * </p>
         * <p><strong>NOTE:</strong> This method is not designed to work if an explicit 
         * height has not been set on the container, since for an "auto" height container, 
         * the heights of the header/body/footer will drive the height of the container.</p>
         *
         * @method fillHeight
         * @param {HTMLElement} el The element which should be resized to fill out the height
         * of the container element.
         */
        fillHeight : function(el) {
            if (el) {
                var container = this.innerElement || this.element,
                    containerEls = [this.header, this.body, this.footer],
                    containerEl,
                    total = 0,
                    filled = 0,
                    remaining = 0,
                    validEl = false;

                for (var i = 0, l = containerEls.length; i < l; i++) {
                    containerEl = containerEls[i];
                    if (containerEl) {
                        if (el !== containerEl) {
                            filled += this._getPreciseHeight(containerEl);
                        } else {
                            validEl = true;
                        }
                    }
                }

                if (validEl) {

                    if (UA.ie || UA.opera) {
                        // Need to set height to 0, to allow height to be reduced
                        Dom.setStyle(el, 'height', 0 + 'px');
                    }

                    total = this._getComputedHeight(container);

                    // Fallback, if we can't get computed value for content height
                    if (total === null) {
                        Dom.addClass(container, "yui-override-padding");
                        total = container.clientHeight; // Content, No Border, 0 Padding (set by yui-override-padding)
                        Dom.removeClass(container, "yui-override-padding");
                    }
    
                    remaining = Math.max(total - filled, 0);
    
                    Dom.setStyle(el, "height", remaining + "px");
    
                    // Re-adjust height if required, to account for el padding and border
                    if (el.offsetHeight != remaining) {
                        remaining = Math.max(remaining - (el.offsetHeight - remaining), 0);
                    }
                    Dom.setStyle(el, "height", remaining + "px");
                }
            }
        },

        /**
        * Places the Overlay on top of all other instances of 
        * YAHOO.widget.Overlay.
        * @method bringToTop
        */
        bringToTop: function () {

            var aOverlays = [],
                oElement = this.element;

            function compareZIndexDesc(p_oOverlay1, p_oOverlay2) {

                var sZIndex1 = Dom.getStyle(p_oOverlay1, "zIndex"),
                    sZIndex2 = Dom.getStyle(p_oOverlay2, "zIndex"),

                    nZIndex1 = (!sZIndex1 || isNaN(sZIndex1)) ? 0 : parseInt(sZIndex1, 10),
                    nZIndex2 = (!sZIndex2 || isNaN(sZIndex2)) ? 0 : parseInt(sZIndex2, 10);

                if (nZIndex1 > nZIndex2) {
                    return -1;
                } else if (nZIndex1 < nZIndex2) {
                    return 1;
                } else {
                    return 0;
                }
            }

            function isOverlayElement(p_oElement) {

                var isOverlay = Dom.hasClass(p_oElement, Overlay.CSS_OVERLAY),
                    Panel = YAHOO.widget.Panel;

                if (isOverlay && !Dom.isAncestor(oElement, p_oElement)) {
                    if (Panel && Dom.hasClass(p_oElement, Panel.CSS_PANEL)) {
                        aOverlays[aOverlays.length] = p_oElement.parentNode;
                    } else {
                        aOverlays[aOverlays.length] = p_oElement;
                    }
                }
            }

            Dom.getElementsBy(isOverlayElement, "DIV", document.body);

            aOverlays.sort(compareZIndexDesc);

            var oTopOverlay = aOverlays[0],
                nTopZIndex;

            if (oTopOverlay) {
                nTopZIndex = Dom.getStyle(oTopOverlay, "zIndex");

                if (!isNaN(nTopZIndex)) {
                    var bRequiresBump = false;

                    if (oTopOverlay != oElement) {
                        bRequiresBump = true;
                    } else if (aOverlays.length > 1) {
                        var nNextZIndex = Dom.getStyle(aOverlays[1], "zIndex");
                        // Don't rely on DOM order to stack if 2 overlays are at the same zindex.
                        if (!isNaN(nNextZIndex) && (nTopZIndex == nNextZIndex)) {
                            bRequiresBump = true;
                        }
                    }
                    if (bRequiresBump) {
                        this.cfg.setProperty("zindex", (parseInt(nTopZIndex, 10) + 2));
                    }
                }
            }
        },

        /**
        * Removes the Overlay element from the DOM and sets all child 
        * elements to null.
        * @method destroy
        */
        destroy: function () {

            if (this.iframe) {
                this.iframe.parentNode.removeChild(this.iframe);
            }

            this.iframe = null;

            Overlay.windowResizeEvent.unsubscribe(
                this.doCenterOnDOMEvent, this);
    
            Overlay.windowScrollEvent.unsubscribe(
                this.doCenterOnDOMEvent, this);

            Module.textResizeEvent.unsubscribe(this._autoFillOnHeightChange);

            Overlay.superclass.destroy.call(this);
        },

        /**
         * Can be used to force the container to repaint/redraw it's contents.
         * <p>
         * By default applies and then removes a 1px bottom margin through the 
         * application/removal of a "yui-force-redraw" class.
         * </p>
         * <p>
         * It is currently used by Overlay to force a repaint for webkit 
         * browsers, when centering.
         * </p>
         * @method forceContainerRedraw
         */
        forceContainerRedraw : function() {
            var c = this;
            Dom.addClass(c.element, "yui-force-redraw");
            setTimeout(function() {
                Dom.removeClass(c.element, "yui-force-redraw");
            }, 0);
        },

        /**
        * Returns a String representation of the object.
        * @method toString
        * @return {String} The string representation of the Overlay.
        */
        toString: function () {
            return "Overlay " + this.id;
        }

    });
}());

(function () {

    /**
    * OverlayManager is used for maintaining the focus status of 
    * multiple Overlays.
    * @namespace YAHOO.widget
    * @namespace YAHOO.widget
    * @class OverlayManager
    * @constructor
    * @param {Array} overlays Optional. A collection of Overlays to register 
    * with the manager.
    * @param {Object} userConfig  The object literal representing the user 
    * configuration of the OverlayManager
    */
    YAHOO.widget.OverlayManager = function (userConfig) {
        this.init(userConfig);
    };

    var Overlay = YAHOO.widget.Overlay,
        Event = YAHOO.util.Event,
        Dom = YAHOO.util.Dom,
        Config = YAHOO.util.Config,
        CustomEvent = YAHOO.util.CustomEvent,
        OverlayManager = YAHOO.widget.OverlayManager;

    /**
    * The CSS class representing a focused Overlay
    * @property OverlayManager.CSS_FOCUSED
    * @static
    * @final
    * @type String
    */
    OverlayManager.CSS_FOCUSED = "focused";

    OverlayManager.prototype = {

        /**
        * The class's constructor function
        * @property contructor
        * @type Function
        */
        constructor: OverlayManager,

        /**
        * The array of Overlays that are currently registered
        * @property overlays
        * @type YAHOO.widget.Overlay[]
        */
        overlays: null,

        /**
        * Initializes the default configuration of the OverlayManager
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
            /**
            * The collection of registered Overlays in use by 
            * the OverlayManager
            * @config overlays
            * @type YAHOO.widget.Overlay[]
            * @default null
            */
            this.cfg.addProperty("overlays", { suppressEvent: true } );

            /**
            * The default DOM event that should be used to focus an Overlay
            * @config focusevent
            * @type String
            * @default "mousedown"
            */
            this.cfg.addProperty("focusevent", { value: "mousedown" } );
        },

        /**
        * Initializes the OverlayManager
        * @method init
        * @param {Overlay[]} overlays Optional. A collection of Overlays to 
        * register with the manager.
        * @param {Object} userConfig  The object literal representing the user 
        * configuration of the OverlayManager
        */
        init: function (userConfig) {

            /**
            * The OverlayManager's Config object used for monitoring 
            * configuration properties.
            * @property cfg
            * @type Config
            */
            this.cfg = new Config(this);

            this.initDefaultConfig();

            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }
            this.cfg.fireQueue();

            /**
            * The currently activated Overlay
            * @property activeOverlay
            * @private
            * @type YAHOO.widget.Overlay
            */
            var activeOverlay = null;

            /**
            * Returns the currently focused Overlay
            * @method getActive
            * @return {Overlay} The currently focused Overlay
            */
            this.getActive = function () {
                return activeOverlay;
            };

            /**
            * Focuses the specified Overlay
            * @method focus
            * @param {Overlay} overlay The Overlay to focus
            * @param {String} overlay The id of the Overlay to focus
            */
            this.focus = function (overlay) {
                var o = this.find(overlay);
                if (o) {
                    o.focus();
                }
            };

            /**
            * Removes the specified Overlay from the manager
            * @method remove
            * @param {Overlay} overlay The Overlay to remove
            * @param {String} overlay The id of the Overlay to remove
            */
            this.remove = function (overlay) {

                var o = this.find(overlay), 
                        originalZ;

                if (o) {
                    if (activeOverlay == o) {
                        activeOverlay = null;
                    }

                    var bDestroyed = (o.element === null && o.cfg === null) ? true : false;

                    if (!bDestroyed) {
                        // Set it's zindex so that it's sorted to the end.
                        originalZ = Dom.getStyle(o.element, "zIndex");
                        o.cfg.setProperty("zIndex", -1000, true);
                    }

                    this.overlays.sort(this.compareZIndexDesc);
                    this.overlays = this.overlays.slice(0, (this.overlays.length - 1));

                    o.hideEvent.unsubscribe(o.blur);
                    o.destroyEvent.unsubscribe(this._onOverlayDestroy, o);
                    o.focusEvent.unsubscribe(this._onOverlayFocusHandler, o);
                    o.blurEvent.unsubscribe(this._onOverlayBlurHandler, o);

                    if (!bDestroyed) {
                        Event.removeListener(o.element, this.cfg.getProperty("focusevent"), this._onOverlayElementFocus);
                        o.cfg.setProperty("zIndex", originalZ, true);
                        o.cfg.setProperty("manager", null);
                    }

                    /* _managed Flag for custom or existing. Don't want to remove existing */
                    if (o.focusEvent._managed) { o.focusEvent = null; }
                    if (o.blurEvent._managed) { o.blurEvent = null; }

                    if (o.focus._managed) { o.focus = null; }
                    if (o.blur._managed) { o.blur = null; }
                }
            };

            /**
            * Removes focus from all registered Overlays in the manager
            * @method blurAll
            */
            this.blurAll = function () {

                var nOverlays = this.overlays.length,
                    i;

                if (nOverlays > 0) {
                    i = nOverlays - 1;
                    do {
                        this.overlays[i].blur();
                    }
                    while(i--);
                }
            };

            /**
             * Updates the state of the OverlayManager and overlay, as a result of the overlay
             * being blurred.
             * 
             * @method _manageBlur
             * @param {Overlay} overlay The overlay instance which got blurred.
             * @protected
             */
            this._manageBlur = function (overlay) {
                var changed = false;
                if (activeOverlay == overlay) {
                    Dom.removeClass(activeOverlay.element, OverlayManager.CSS_FOCUSED);
                    activeOverlay = null;
                    changed = true;
                }
                return changed;
            };

            /**
             * Updates the state of the OverlayManager and overlay, as a result of the overlay 
             * receiving focus.
             *
             * @method _manageFocus
             * @param {Overlay} overlay The overlay instance which got focus.
             * @protected
             */
            this._manageFocus = function(overlay) {
                var changed = false;
                if (activeOverlay != overlay) {
                    if (activeOverlay) {
                        activeOverlay.blur();
                    }
                    activeOverlay = overlay;
                    this.bringToTop(activeOverlay);
                    Dom.addClass(activeOverlay.element, OverlayManager.CSS_FOCUSED);
                    changed = true;
                }
                return changed;
            };

            var overlays = this.cfg.getProperty("overlays");

            if (! this.overlays) {
                this.overlays = [];
            }

            if (overlays) {
                this.register(overlays);
                this.overlays.sort(this.compareZIndexDesc);
            }
        },

        /**
        * @method _onOverlayElementFocus
        * @description Event handler for the DOM event that is used to focus 
        * the Overlay instance as specified by the "focusevent" 
        * configuration property.
        * @private
        * @param {Event} p_oEvent Object representing the DOM event 
        * object passed back by the event utility (Event).
        */
        _onOverlayElementFocus: function (p_oEvent) {

            var oTarget = Event.getTarget(p_oEvent),
                oClose = this.close;

            if (oClose && (oTarget == oClose || Dom.isAncestor(oClose, oTarget))) {
                this.blur();
            } else {
                this.focus();
            }
        },

        /**
        * @method _onOverlayDestroy
        * @description "destroy" event handler for the Overlay.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        * @param {Overlay} p_oOverlay Object representing the overlay that 
        * fired the event.
        */
        _onOverlayDestroy: function (p_sType, p_aArgs, p_oOverlay) {
            this.remove(p_oOverlay);
        },

        /**
        * @method _onOverlayFocusHandler
        *
        * focusEvent Handler, used to delegate to _manageFocus with the 
        * correct arguments.
        *
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        * @param {Overlay} p_oOverlay Object representing the overlay that 
        * fired the event.
        */
        _onOverlayFocusHandler: function(p_sType, p_aArgs, p_oOverlay) {
            this._manageFocus(p_oOverlay);
        },

        /**
        * @method _onOverlayBlurHandler
        *
        * blurEvent Handler, used to delegate to _manageBlur with the 
        * correct arguments.
        *
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        * @param {Overlay} p_oOverlay Object representing the overlay that 
        * fired the event.
        */
        _onOverlayBlurHandler: function(p_sType, p_aArgs, p_oOverlay) {
            this._manageBlur(p_oOverlay);
        },

        /**
         * Subscribes to the Overlay based instance focusEvent, to allow the OverlayManager to
         * monitor focus state.
         * 
         * If the instance already has a focusEvent (e.g. Menu), OverlayManager will subscribe 
         * to the existing focusEvent, however if a focusEvent or focus method does not exist
         * on the instance, the _bindFocus method will add them, and the focus method will 
         * update the OverlayManager's state directly.
         * 
         * @method _bindFocus
         * @param {Overlay} overlay The overlay for which focus needs to be managed
         * @protected
         */
        _bindFocus : function(overlay) {
            var mgr = this;

            if (!overlay.focusEvent) {
                overlay.focusEvent = overlay.createEvent("focus");
                overlay.focusEvent.signature = CustomEvent.LIST;
                overlay.focusEvent._managed = true;
            } else {
                overlay.focusEvent.subscribe(mgr._onOverlayFocusHandler, overlay, mgr);
            }

            if (!overlay.focus) {
                Event.on(overlay.element, mgr.cfg.getProperty("focusevent"), mgr._onOverlayElementFocus, null, overlay);
                overlay.focus = function () {
                    if (mgr._manageFocus(this)) {
                        // For Panel/Dialog
                        if (this.cfg.getProperty("visible") && this.focusFirst) {
                            this.focusFirst();
                        }
                        this.focusEvent.fire();
                    }
                };
                overlay.focus._managed = true;
            }
        },

        /**
         * Subscribes to the Overlay based instance's blurEvent to allow the OverlayManager to
         * monitor blur state.
         *
         * If the instance already has a blurEvent (e.g. Menu), OverlayManager will subscribe 
         * to the existing blurEvent, however if a blurEvent or blur method does not exist
         * on the instance, the _bindBlur method will add them, and the blur method 
         * update the OverlayManager's state directly.
         *
         * @method _bindBlur
         * @param {Overlay} overlay The overlay for which blur needs to be managed
         * @protected
         */
        _bindBlur : function(overlay) {
            var mgr = this;

            if (!overlay.blurEvent) {
                overlay.blurEvent = overlay.createEvent("blur");
                overlay.blurEvent.signature = CustomEvent.LIST;
                overlay.focusEvent._managed = true;
            } else {
                overlay.blurEvent.subscribe(mgr._onOverlayBlurHandler, overlay, mgr);
            }

            if (!overlay.blur) {
                overlay.blur = function () {
                    if (mgr._manageBlur(this)) {
                        this.blurEvent.fire();
                    }
                };
                overlay.blur._managed = true;
            }

            overlay.hideEvent.subscribe(overlay.blur);
        },

        /**
         * Subscribes to the Overlay based instance's destroyEvent, to allow the Overlay
         * to be removed for the OverlayManager when destroyed.
         * 
         * @method _bindDestroy
         * @param {Overlay} overlay The overlay instance being managed
         * @protected
         */
        _bindDestroy : function(overlay) {
            var mgr = this;
            overlay.destroyEvent.subscribe(mgr._onOverlayDestroy, overlay, mgr);
        },

        /**
         * Ensures the zIndex configuration property on the managed overlay based instance
         * is set to the computed zIndex value from the DOM (with "auto" translating to 0).
         *
         * @method _syncZIndex
         * @param {Overlay} overlay The overlay instance being managed
         * @protected
         */
        _syncZIndex : function(overlay) {
            var zIndex = Dom.getStyle(overlay.element, "zIndex");
            if (!isNaN(zIndex)) {
                overlay.cfg.setProperty("zIndex", parseInt(zIndex, 10));
            } else {
                overlay.cfg.setProperty("zIndex", 0);
            }
        },

        /**
        * Registers an Overlay or an array of Overlays with the manager. Upon 
        * registration, the Overlay receives functions for focus and blur, 
        * along with CustomEvents for each.
        *
        * @method register
        * @param {Overlay} overlay  An Overlay to register with the manager.
        * @param {Overlay[]} overlay  An array of Overlays to register with 
        * the manager.
        * @return {boolean} true if any Overlays are registered.
        */
        register: function (overlay) {

            var registered = false,
                i,
                n;

            if (overlay instanceof Overlay) {

                overlay.cfg.addProperty("manager", { value: this } );

                this._bindFocus(overlay);
                this._bindBlur(overlay);
                this._bindDestroy(overlay);
                this._syncZIndex(overlay);

                this.overlays.push(overlay);
                this.bringToTop(overlay);

                registered = true;

            } else if (overlay instanceof Array) {

                for (i = 0, n = overlay.length; i < n; i++) {
                    registered = this.register(overlay[i]) || registered;
                }

            }

            return registered;
        },

        /**
        * Places the specified Overlay instance on top of all other 
        * Overlay instances.
        * @method bringToTop
        * @param {YAHOO.widget.Overlay} p_oOverlay Object representing an 
        * Overlay instance.
        * @param {String} p_oOverlay String representing the id of an 
        * Overlay instance.
        */        
        bringToTop: function (p_oOverlay) {

            var oOverlay = this.find(p_oOverlay),
                nTopZIndex,
                oTopOverlay,
                aOverlays;

            if (oOverlay) {

                aOverlays = this.overlays;
                aOverlays.sort(this.compareZIndexDesc);

                oTopOverlay = aOverlays[0];

                if (oTopOverlay) {
                    nTopZIndex = Dom.getStyle(oTopOverlay.element, "zIndex");

                    if (!isNaN(nTopZIndex)) {

                        var bRequiresBump = false;

                        if (oTopOverlay !== oOverlay) {
                            bRequiresBump = true;
                        } else if (aOverlays.length > 1) {
                            var nNextZIndex = Dom.getStyle(aOverlays[1].element, "zIndex");
                            // Don't rely on DOM order to stack if 2 overlays are at the same zindex.
                            if (!isNaN(nNextZIndex) && (nTopZIndex == nNextZIndex)) {
                                bRequiresBump = true;
                            }
                        }

                        if (bRequiresBump) {
                            oOverlay.cfg.setProperty("zindex", (parseInt(nTopZIndex, 10) + 2));
                        }
                    }
                    aOverlays.sort(this.compareZIndexDesc);
                }
            }
        },

        /**
        * Attempts to locate an Overlay by instance or ID.
        * @method find
        * @param {Overlay} overlay  An Overlay to locate within the manager
        * @param {String} overlay  An Overlay id to locate within the manager
        * @return {Overlay} The requested Overlay, if found, or null if it 
        * cannot be located.
        */
        find: function (overlay) {

            var isInstance = overlay instanceof Overlay,
                overlays = this.overlays,
                n = overlays.length,
                found = null,
                o,
                i;

            if (isInstance || typeof overlay == "string") {
                for (i = n-1; i >= 0; i--) {
                    o = overlays[i];
                    if ((isInstance && (o === overlay)) || (o.id == overlay)) {
                        found = o;
                        break;
                    }
                }
            }

            return found;
        },

        /**
        * Used for sorting the manager's Overlays by z-index.
        * @method compareZIndexDesc
        * @private
        * @return {Number} 0, 1, or -1, depending on where the Overlay should 
        * fall in the stacking order.
        */
        compareZIndexDesc: function (o1, o2) {

            var zIndex1 = (o1.cfg) ? o1.cfg.getProperty("zIndex") : null, // Sort invalid (destroyed)
                zIndex2 = (o2.cfg) ? o2.cfg.getProperty("zIndex") : null; // objects at bottom.

            if (zIndex1 === null && zIndex2 === null) {
                return 0;
            } else if (zIndex1 === null){
                return 1;
            } else if (zIndex2 === null) {
                return -1;
            } else if (zIndex1 > zIndex2) {
                return -1;
            } else if (zIndex1 < zIndex2) {
                return 1;
            } else {
                return 0;
            }
        },

        /**
        * Shows all Overlays in the manager.
        * @method showAll
        */
        showAll: function () {
            var overlays = this.overlays,
                n = overlays.length,
                i;

            for (i = n - 1; i >= 0; i--) {
                overlays[i].show();
            }
        },

        /**
        * Hides all Overlays in the manager.
        * @method hideAll
        */
        hideAll: function () {
            var overlays = this.overlays,
                n = overlays.length,
                i;

            for (i = n - 1; i >= 0; i--) {
                overlays[i].hide();
            }
        },

        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the OverlayManager
        */
        toString: function () {
            return "OverlayManager";
        }
    };
}());

(function () {

    /**
    * Tooltip is an implementation of Overlay that behaves like an OS tooltip, 
    * displaying when the user mouses over a particular element, and 
    * disappearing on mouse out.
    * @namespace YAHOO.widget
    * @class Tooltip
    * @extends YAHOO.widget.Overlay
    * @constructor
    * @param {String} el The element ID representing the Tooltip <em>OR</em>
    * @param {HTMLElement} el The element representing the Tooltip
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this Overlay. See configuration 
    * documentation for more details.
    */
    YAHOO.widget.Tooltip = function (el, userConfig) {
        YAHOO.widget.Tooltip.superclass.constructor.call(this, el, userConfig);
    };

    var Lang = YAHOO.lang,
        Event = YAHOO.util.Event,
        CustomEvent = YAHOO.util.CustomEvent,
        Dom = YAHOO.util.Dom,
        Tooltip = YAHOO.widget.Tooltip,
        UA = YAHOO.env.ua,
        bIEQuirks = (UA.ie && (UA.ie <= 6 || document.compatMode == "BackCompat")),

        m_oShadowTemplate,

        /**
        * Constant representing the Tooltip's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {

            "PREVENT_OVERLAP": { 
                key: "preventoverlap", 
                value: true, 
                validator: Lang.isBoolean, 
                supercedes: ["x", "y", "xy"] 
            },

            "SHOW_DELAY": { 
                key: "showdelay", 
                value: 200, 
                validator: Lang.isNumber 
            }, 

            "AUTO_DISMISS_DELAY": { 
                key: "autodismissdelay", 
                value: 5000, 
                validator: Lang.isNumber 
            }, 

            "HIDE_DELAY": { 
                key: "hidedelay", 
                value: 250, 
                validator: Lang.isNumber 
            }, 

            "TEXT": { 
                key: "text", 
                suppressEvent: true 
            }, 

            "CONTAINER": { 
                key: "container"
            },

            "DISABLED": {
                key: "disabled",
                value: false,
                suppressEvent: true
            }
        },

        /**
        * Constant representing the name of the Tooltip's events
        * @property EVENT_TYPES
        * @private
        * @final
        * @type Object
        */
        EVENT_TYPES = {
            "CONTEXT_MOUSE_OVER": "contextMouseOver",
            "CONTEXT_MOUSE_OUT": "contextMouseOut",
            "CONTEXT_TRIGGER": "contextTrigger"
        };

    /**
    * Constant representing the Tooltip CSS class
    * @property YAHOO.widget.Tooltip.CSS_TOOLTIP
    * @static
    * @final
    * @type String
    */
    Tooltip.CSS_TOOLTIP = "yui-tt";

    function restoreOriginalWidth(sOriginalWidth, sForcedWidth) {

        var oConfig = this.cfg,
            sCurrentWidth = oConfig.getProperty("width");

        if (sCurrentWidth == sForcedWidth) {
            oConfig.setProperty("width", sOriginalWidth);
        }
    }

    /* 
        changeContent event handler that sets a Tooltip instance's "width"
        configuration property to the value of its root HTML 
        elements's offsetWidth if a specific width has not been set.
    */

    function setWidthToOffsetWidth(p_sType, p_aArgs) {

        if ("_originalWidth" in this) {
            restoreOriginalWidth.call(this, this._originalWidth, this._forcedWidth);
        }

        var oBody = document.body,
            oConfig = this.cfg,
            sOriginalWidth = oConfig.getProperty("width"),
            sNewWidth,
            oClone;

        if ((!sOriginalWidth || sOriginalWidth == "auto") && 
            (oConfig.getProperty("container") != oBody || 
            oConfig.getProperty("x") >= Dom.getViewportWidth() || 
            oConfig.getProperty("y") >= Dom.getViewportHeight())) {

            oClone = this.element.cloneNode(true);
            oClone.style.visibility = "hidden";
            oClone.style.top = "0px";
            oClone.style.left = "0px";

            oBody.appendChild(oClone);

            sNewWidth = (oClone.offsetWidth + "px");

            oBody.removeChild(oClone);
            oClone = null;

            oConfig.setProperty("width", sNewWidth);
            oConfig.refireEvent("xy");

            this._originalWidth = sOriginalWidth || "";
            this._forcedWidth = sNewWidth;
        }
    }

    // "onDOMReady" that renders the ToolTip

    function onDOMReady(p_sType, p_aArgs, p_oObject) {
        this.render(p_oObject);
    }

    //  "init" event handler that automatically renders the Tooltip

    function onInit() {
        Event.onDOMReady(onDOMReady, this.cfg.getProperty("container"), this);
    }

    YAHOO.extend(Tooltip, YAHOO.widget.Overlay, { 

        /**
        * The Tooltip initialization method. This method is automatically 
        * called by the constructor. A Tooltip is automatically rendered by 
        * the init method, and it also is set to be invisible by default, 
        * and constrained to viewport by default as well.
        * @method init
        * @param {String} el The element ID representing the Tooltip <em>OR</em>
        * @param {HTMLElement} el The element representing the Tooltip
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this Tooltip. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {


            Tooltip.superclass.init.call(this, el);

            this.beforeInitEvent.fire(Tooltip);

            Dom.addClass(this.element, Tooltip.CSS_TOOLTIP);

            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }

            this.cfg.queueProperty("visible", false);
            this.cfg.queueProperty("constraintoviewport", true);

            this.setBody("");

            this.subscribe("changeContent", setWidthToOffsetWidth);
            this.subscribe("init", onInit);
            this.subscribe("render", this.onRender);

            this.initEvent.fire(Tooltip);
        },

        /**
        * Initializes the custom events for Tooltip
        * @method initEvents
        */
        initEvents: function () {

            Tooltip.superclass.initEvents.call(this);
            var SIGNATURE = CustomEvent.LIST;

            /**
            * CustomEvent fired when user mouses over a context element. Returning false from
            * a subscriber to this event will prevent the tooltip from being displayed for
            * the current context element.
            * 
            * @event contextMouseOverEvent
            * @param {HTMLElement} context The context element which the user just moused over
            * @param {DOMEvent} e The DOM event object, associated with the mouse over
            */
            this.contextMouseOverEvent = this.createEvent(EVENT_TYPES.CONTEXT_MOUSE_OVER);
            this.contextMouseOverEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired when the user mouses out of a context element.
            * 
            * @event contextMouseOutEvent
            * @param {HTMLElement} context The context element which the user just moused out of
            * @param {DOMEvent} e The DOM event object, associated with the mouse out
            */
            this.contextMouseOutEvent = this.createEvent(EVENT_TYPES.CONTEXT_MOUSE_OUT);
            this.contextMouseOutEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired just before the tooltip is displayed for the current context.
            * <p>
            *  You can subscribe to this event if you need to set up the text for the 
            *  tooltip based on the context element for which it is about to be displayed.
            * </p>
            * <p>This event differs from the beforeShow event in following respects:</p>
            * <ol>
            *   <li>
            *    When moving from one context element to another, if the tooltip is not
            *    hidden (the <code>hidedelay</code> is not reached), the beforeShow and Show events will not
            *    be fired when the tooltip is displayed for the new context since it is already visible.
            *    However the contextTrigger event is always fired before displaying the tooltip for
            *    a new context.
            *   </li>
            *   <li>
            *    The trigger event provides access to the context element, allowing you to 
            *    set the text of the tooltip based on context element for which the tooltip is
            *    triggered.
            *   </li>
            * </ol>
            * <p>
            *  It is not possible to prevent the tooltip from being displayed
            *  using this event. You can use the contextMouseOverEvent if you need to prevent
            *  the tooltip from being displayed.
            * </p>
            * @event contextTriggerEvent
            * @param {HTMLElement} context The context element for which the tooltip is triggered
            */
            this.contextTriggerEvent = this.createEvent(EVENT_TYPES.CONTEXT_TRIGGER);
            this.contextTriggerEvent.signature = SIGNATURE;
        },

        /**
        * Initializes the class's configurable properties which can be 
        * changed using the Overlay's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {

            Tooltip.superclass.initDefaultConfig.call(this);

            /**
            * Specifies whether the Tooltip should be kept from overlapping 
            * its context element.
            * @config preventoverlap
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.PREVENT_OVERLAP.key, {
                value: DEFAULT_CONFIG.PREVENT_OVERLAP.value, 
                validator: DEFAULT_CONFIG.PREVENT_OVERLAP.validator, 
                supercedes: DEFAULT_CONFIG.PREVENT_OVERLAP.supercedes
            });

            /**
            * The number of milliseconds to wait before showing a Tooltip 
            * on mouseover.
            * @config showdelay
            * @type Number
            * @default 200
            */
            this.cfg.addProperty(DEFAULT_CONFIG.SHOW_DELAY.key, {
                handler: this.configShowDelay,
                value: 200, 
                validator: DEFAULT_CONFIG.SHOW_DELAY.validator
            });

            /**
            * The number of milliseconds to wait before automatically 
            * dismissing a Tooltip after the mouse has been resting on the 
            * context element.
            * @config autodismissdelay
            * @type Number
            * @default 5000
            */
            this.cfg.addProperty(DEFAULT_CONFIG.AUTO_DISMISS_DELAY.key, {
                handler: this.configAutoDismissDelay,
                value: DEFAULT_CONFIG.AUTO_DISMISS_DELAY.value,
                validator: DEFAULT_CONFIG.AUTO_DISMISS_DELAY.validator
            });

            /**
            * The number of milliseconds to wait before hiding a Tooltip 
            * after mouseout.
            * @config hidedelay
            * @type Number
            * @default 250
            */
            this.cfg.addProperty(DEFAULT_CONFIG.HIDE_DELAY.key, {
                handler: this.configHideDelay,
                value: DEFAULT_CONFIG.HIDE_DELAY.value, 
                validator: DEFAULT_CONFIG.HIDE_DELAY.validator
            });

            /**
            * Specifies the Tooltip's text. 
            * @config text
            * @type String
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.TEXT.key, {
                handler: this.configText,
                suppressEvent: DEFAULT_CONFIG.TEXT.suppressEvent
            });

            /**
            * Specifies the container element that the Tooltip's markup 
            * should be rendered into.
            * @config container
            * @type HTMLElement/String
            * @default document.body
            */
            this.cfg.addProperty(DEFAULT_CONFIG.CONTAINER.key, {
                handler: this.configContainer,
                value: document.body
            });

            /**
            * Specifies whether or not the tooltip is disabled. Disabled tooltips
            * will not be displayed. If the tooltip is driven by the title attribute
            * of the context element, the title attribute will still be removed for 
            * disabled tooltips, to prevent default tooltip behavior.
            * 
            * @config disabled
            * @type Boolean
            * @default false
            */
            this.cfg.addProperty(DEFAULT_CONFIG.DISABLED.key, {
                handler: this.configContainer,
                value: DEFAULT_CONFIG.DISABLED.value,
                supressEvent: DEFAULT_CONFIG.DISABLED.suppressEvent
            });

            /**
            * Specifies the element or elements that the Tooltip should be 
            * anchored to on mouseover.
            * @config context
            * @type HTMLElement[]/String[]
            * @default null
            */ 

            /**
            * String representing the width of the Tooltip.  <em>Please note:
            * </em> As of version 2.3 if either no value or a value of "auto" 
            * is specified, and the Toolip's "container" configuration property
            * is set to something other than <code>document.body</code> or 
            * its "context" element resides outside the immediately visible 
            * portion of the document, the width of the Tooltip will be 
            * calculated based on the offsetWidth of its root HTML and set just 
            * before it is made visible.  The original value will be 
            * restored when the Tooltip is hidden. This ensures the Tooltip is 
            * rendered at a usable width.  For more information see 
            * SourceForge bug #1685496 and SourceForge 
            * bug #1735423.
            * @config width
            * @type String
            * @default null
            */
        
        },
        
        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * The default event handler fired when the "text" property is changed.
        * @method configText
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configText: function (type, args, obj) {
            var text = args[0];
            if (text) {
                this.setBody(text);
            }
        },
        
        /**
        * The default event handler fired when the "container" property 
        * is changed.
        * @method configContainer
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For 
        * configuration handlers, args[0] will equal the newly applied value 
        * for the property.
        * @param {Object} obj The scope object. For configuration handlers,
        * this will usually equal the owner.
        */
        configContainer: function (type, args, obj) {
            var container = args[0];

            if (typeof container == 'string') {
                this.cfg.setProperty("container", document.getElementById(container), true);
            }
        },
        
        /**
        * @method _removeEventListeners
        * @description Removes all of the DOM event handlers from the HTML
        *  element(s) that trigger the display of the tooltip.
        * @protected
        */
        _removeEventListeners: function () {
        
            var aElements = this._context,
                nElements,
                oElement,
                i;

            if (aElements) {
                nElements = aElements.length;
                if (nElements > 0) {
                    i = nElements - 1;
                    do {
                        oElement = aElements[i];
                        Event.removeListener(oElement, "mouseover", this.onContextMouseOver);
                        Event.removeListener(oElement, "mousemove", this.onContextMouseMove);
                        Event.removeListener(oElement, "mouseout", this.onContextMouseOut);
                    }
                    while (i--);
                }
            }
        },
        
        /**
        * The default event handler fired when the "context" property 
        * is changed.
        * @method configContext
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers,
        * this will usually equal the owner.
        */
        configContext: function (type, args, obj) {

            var context = args[0],
                aElements,
                nElements,
                oElement,
                i;

            if (context) {

                // Normalize parameter into an array
                if (! (context instanceof Array)) {
                    if (typeof context == "string") {
                        this.cfg.setProperty("context", [document.getElementById(context)], true);
                    } else { // Assuming this is an element
                        this.cfg.setProperty("context", [context], true);
                    }
                    context = this.cfg.getProperty("context");
                }

                // Remove any existing mouseover/mouseout listeners
                this._removeEventListeners();

                // Add mouseover/mouseout listeners to context elements
                this._context = context;

                aElements = this._context;

                if (aElements) {
                    nElements = aElements.length;
                    if (nElements > 0) {
                        i = nElements - 1;
                        do {
                            oElement = aElements[i];
                            Event.on(oElement, "mouseover", this.onContextMouseOver, this);
                            Event.on(oElement, "mousemove", this.onContextMouseMove, this);
                            Event.on(oElement, "mouseout", this.onContextMouseOut, this);
                        }
                        while (i--);
                    }
                }
            }
        },

        // END BUILT-IN PROPERTY EVENT HANDLERS //

        // BEGIN BUILT-IN DOM EVENT HANDLERS //

        /**
        * The default event handler fired when the user moves the mouse while 
        * over the context element.
        * @method onContextMouseMove
        * @param {DOMEvent} e The current DOM event
        * @param {Object} obj The object argument
        */
        onContextMouseMove: function (e, obj) {
            obj.pageX = Event.getPageX(e);
            obj.pageY = Event.getPageY(e);
        },

        /**
        * The default event handler fired when the user mouses over the 
        * context element.
        * @method onContextMouseOver
        * @param {DOMEvent} e The current DOM event
        * @param {Object} obj The object argument
        */
        onContextMouseOver: function (e, obj) {
            var context = this;

            if (context.title) {
                obj._tempTitle = context.title;
                context.title = "";
            }

            // Fire first, to honor disabled set in the listner
            if (obj.fireEvent("contextMouseOver", context, e) !== false 
                    && !obj.cfg.getProperty("disabled")) {

                // Stop the tooltip from being hidden (set on last mouseout)
                if (obj.hideProcId) {
                    clearTimeout(obj.hideProcId);
                    obj.hideProcId = null;
                }

                Event.on(context, "mousemove", obj.onContextMouseMove, obj);

                /**
                * The unique process ID associated with the thread responsible 
                * for showing the Tooltip.
                * @type int
                */
                obj.showProcId = obj.doShow(e, context);
            }
        },

        /**
        * The default event handler fired when the user mouses out of 
        * the context element.
        * @method onContextMouseOut
        * @param {DOMEvent} e The current DOM event
        * @param {Object} obj The object argument
        */
        onContextMouseOut: function (e, obj) {
            var el = this;

            if (obj._tempTitle) {
                el.title = obj._tempTitle;
                obj._tempTitle = null;
            }

            if (obj.showProcId) {
                clearTimeout(obj.showProcId);
                obj.showProcId = null;
            }

            if (obj.hideProcId) {
                clearTimeout(obj.hideProcId);
                obj.hideProcId = null;
            }

            obj.fireEvent("contextMouseOut", el, e);

            obj.hideProcId = setTimeout(function () {
                obj.hide();
            }, obj.cfg.getProperty("hidedelay"));
        },

        // END BUILT-IN DOM EVENT HANDLERS //

        /**
        * Processes the showing of the Tooltip by setting the timeout delay 
        * and offset of the Tooltip.
        * @method doShow
        * @param {DOMEvent} e The current DOM event
        * @param {HTMLElement} context The current context element
        * @return {Number} The process ID of the timeout function associated 
        * with doShow
        */
        doShow: function (e, context) {

            var yOffset = 25,
                me = this;

            if (UA.opera && context.tagName && 
                context.tagName.toUpperCase() == "A") {
                yOffset += 12;
            }

            return setTimeout(function () {

                var txt = me.cfg.getProperty("text");

                // title does not over-ride text
                if (me._tempTitle && (txt === "" || YAHOO.lang.isUndefined(txt) || YAHOO.lang.isNull(txt))) {
                    me.setBody(me._tempTitle);
                } else {
                    me.cfg.refireEvent("text");
                }

                me.moveTo(me.pageX, me.pageY + yOffset);

                if (me.cfg.getProperty("preventoverlap")) {
                    me.preventOverlap(me.pageX, me.pageY);
                }

                Event.removeListener(context, "mousemove", me.onContextMouseMove);

                me.contextTriggerEvent.fire(context);

                me.show();

                me.hideProcId = me.doHide();

            }, this.cfg.getProperty("showdelay"));
        },

        /**
        * Sets the timeout for the auto-dismiss delay, which by default is 5 
        * seconds, meaning that a tooltip will automatically dismiss itself 
        * after 5 seconds of being displayed.
        * @method doHide
        */
        doHide: function () {

            var me = this;


            return setTimeout(function () {

                me.hide();

            }, this.cfg.getProperty("autodismissdelay"));

        },

        /**
        * Fired when the Tooltip is moved, this event handler is used to 
        * prevent the Tooltip from overlapping with its context element.
        * @method preventOverlay
        * @param {Number} pageX The x coordinate position of the mouse pointer
        * @param {Number} pageY The y coordinate position of the mouse pointer
        */
        preventOverlap: function (pageX, pageY) {
        
            var height = this.element.offsetHeight,
                mousePoint = new YAHOO.util.Point(pageX, pageY),
                elementRegion = Dom.getRegion(this.element);
        
            elementRegion.top -= 5;
            elementRegion.left -= 5;
            elementRegion.right += 5;
            elementRegion.bottom += 5;
        
        
            if (elementRegion.contains(mousePoint)) {
                this.cfg.setProperty("y", (pageY - height - 5));
            }
        },


        /**
        * @method onRender
        * @description "render" event handler for the Tooltip.
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        onRender: function (p_sType, p_aArgs) {
    
            function sizeShadow() {
    
                var oElement = this.element,
                    oShadow = this.underlay;
            
                if (oShadow) {
                    oShadow.style.width = (oElement.offsetWidth + 6) + "px";
                    oShadow.style.height = (oElement.offsetHeight + 1) + "px"; 
                }
            
            }

            function addShadowVisibleClass() {
                Dom.addClass(this.underlay, "yui-tt-shadow-visible");

                if (UA.ie) {
                    this.forceUnderlayRedraw();
                }
            }

            function removeShadowVisibleClass() {
                Dom.removeClass(this.underlay, "yui-tt-shadow-visible");
            }

            function createShadow() {
    
                var oShadow = this.underlay,
                    oElement,
                    Module,
                    nIE,
                    me;
    
                if (!oShadow) {
    
                    oElement = this.element;
                    Module = YAHOO.widget.Module;
                    nIE = UA.ie;
                    me = this;

                    if (!m_oShadowTemplate) {
                        m_oShadowTemplate = document.createElement("div");
                        m_oShadowTemplate.className = "yui-tt-shadow";
                    }

                    oShadow = m_oShadowTemplate.cloneNode(false);

                    oElement.appendChild(oShadow);

                    this.underlay = oShadow;

                    // Backward compatibility, even though it's probably 
                    // intended to be "private", it isn't marked as such in the api docs
                    this._shadow = this.underlay;

                    addShadowVisibleClass.call(this);

                    this.subscribe("beforeShow", addShadowVisibleClass);
                    this.subscribe("hide", removeShadowVisibleClass);

                    if (bIEQuirks) {
                        window.setTimeout(function () { 
                            sizeShadow.call(me); 
                        }, 0);
    
                        this.cfg.subscribeToConfigEvent("width", sizeShadow);
                        this.cfg.subscribeToConfigEvent("height", sizeShadow);
                        this.subscribe("changeContent", sizeShadow);

                        Module.textResizeEvent.subscribe(sizeShadow, this, true);
                        this.subscribe("destroy", function () {
                            Module.textResizeEvent.unsubscribe(sizeShadow, this);
                        });
                    }
                }
            }

            function onBeforeShow() {
                createShadow.call(this);
                this.unsubscribe("beforeShow", onBeforeShow);
            }

            if (this.cfg.getProperty("visible")) {
                createShadow.call(this);
            } else {
                this.subscribe("beforeShow", onBeforeShow);
            }
        
        },

        /**
         * Forces the underlay element to be repainted, through the application/removal
         * of a yui-force-redraw class to the underlay element.
         * 
         * @method forceUnderlayRedraw
         */
        forceUnderlayRedraw : function() {
            var tt = this;
            Dom.addClass(tt.underlay, "yui-force-redraw");
            setTimeout(function() {Dom.removeClass(tt.underlay, "yui-force-redraw");}, 0);
        },

        /**
        * Removes the Tooltip element from the DOM and sets all child 
        * elements to null.
        * @method destroy
        */
        destroy: function () {
        
            // Remove any existing mouseover/mouseout listeners
            this._removeEventListeners();

            Tooltip.superclass.destroy.call(this);  
        
        },
        
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the Tooltip
        */
        toString: function () {
            return "Tooltip " + this.id;
        }
    
    });

}());

(function () {

    /**
    * Panel is an implementation of Overlay that behaves like an OS window, 
    * with a draggable header and an optional close icon at the top right.
    * @namespace YAHOO.widget
    * @class Panel
    * @extends YAHOO.widget.Overlay
    * @constructor
    * @param {String} el The element ID representing the Panel <em>OR</em>
    * @param {HTMLElement} el The element representing the Panel
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this Panel. See configuration 
    * documentation for more details.
    */
    YAHOO.widget.Panel = function (el, userConfig) {
        YAHOO.widget.Panel.superclass.constructor.call(this, el, userConfig);
    };

    var _currentModal = null;

    var Lang = YAHOO.lang,
        Util = YAHOO.util,
        Dom = Util.Dom,
        Event = Util.Event,
        CustomEvent = Util.CustomEvent,
        KeyListener = YAHOO.util.KeyListener,
        Config = Util.Config,
        Overlay = YAHOO.widget.Overlay,
        Panel = YAHOO.widget.Panel,
        UA = YAHOO.env.ua,

        bIEQuirks = (UA.ie && (UA.ie <= 6 || document.compatMode == "BackCompat")),

        m_oMaskTemplate,
        m_oUnderlayTemplate,
        m_oCloseIconTemplate,

        /**
        * Constant representing the name of the Panel's events
        * @property EVENT_TYPES
        * @private
        * @final
        * @type Object
        */
        EVENT_TYPES = {
            "SHOW_MASK": "showMask",
            "HIDE_MASK": "hideMask",
            "DRAG": "drag"
        },

        /**
        * Constant representing the Panel's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {

            "CLOSE": { 
                key: "close", 
                value: true, 
                validator: Lang.isBoolean, 
                supercedes: ["visible"] 
            },

            "DRAGGABLE": {
                key: "draggable", 
                value: (Util.DD ? true : false), 
                validator: Lang.isBoolean, 
                supercedes: ["visible"]  
            },

            "DRAG_ONLY" : {
                key: "dragonly",
                value: false,
                validator: Lang.isBoolean,
                supercedes: ["draggable"]
            },

            "UNDERLAY": { 
                key: "underlay", 
                value: "shadow", 
                supercedes: ["visible"] 
            },

            "MODAL": { 
                key: "modal", 
                value: false, 
                validator: Lang.isBoolean, 
                supercedes: ["visible", "zindex"]
            },

            "KEY_LISTENERS": {
                key: "keylisteners",
                suppressEvent: true,
                supercedes: ["visible"]
            },

            "STRINGS" : {
                key: "strings",
                supercedes: ["close"],
                validator: Lang.isObject,
                value: {
                    close: "Close"
                }
            }
        };

    /**
    * Constant representing the default CSS class used for a Panel
    * @property YAHOO.widget.Panel.CSS_PANEL
    * @static
    * @final
    * @type String
    */
    Panel.CSS_PANEL = "yui-panel";
    
    /**
    * Constant representing the default CSS class used for a Panel's 
    * wrapping container
    * @property YAHOO.widget.Panel.CSS_PANEL_CONTAINER
    * @static
    * @final
    * @type String
    */
    Panel.CSS_PANEL_CONTAINER = "yui-panel-container";

    /**
     * Constant representing the default set of focusable elements 
     * on the pagewhich Modal Panels will prevent access to, when
     * the modal mask is displayed
     * 
     * @property YAHOO.widget.Panel.FOCUSABLE
     * @static
     * @type Array
     */
    Panel.FOCUSABLE = [
        "a",
        "button",
        "select",
        "textarea",
        "input",
        "iframe"
    ];

    // Private CustomEvent listeners

    /* 
        "beforeRender" event handler that creates an empty header for a Panel 
        instance if its "draggable" configuration property is set to "true" 
        and no header has been created.
    */

    function createHeader(p_sType, p_aArgs) {
        if (!this.header && this.cfg.getProperty("draggable")) {
            this.setHeader("&#160;");
        }
    }

    /* 
        "hide" event handler that sets a Panel instance's "width"
        configuration property back to its original value before 
        "setWidthToOffsetWidth" was called.
    */
    
    function restoreOriginalWidth(p_sType, p_aArgs, p_oObject) {

        var sOriginalWidth = p_oObject[0],
            sNewWidth = p_oObject[1],
            oConfig = this.cfg,
            sCurrentWidth = oConfig.getProperty("width");

        if (sCurrentWidth == sNewWidth) {
            oConfig.setProperty("width", sOriginalWidth);
        }

        this.unsubscribe("hide", restoreOriginalWidth, p_oObject);
    }

    /* 
        "beforeShow" event handler that sets a Panel instance's "width"
        configuration property to the value of its root HTML 
        elements's offsetWidth
    */

    function setWidthToOffsetWidth(p_sType, p_aArgs) {

        var oConfig,
            sOriginalWidth,
            sNewWidth;

        if (bIEQuirks) {

            oConfig = this.cfg;
            sOriginalWidth = oConfig.getProperty("width");
            
            if (!sOriginalWidth || sOriginalWidth == "auto") {
    
                sNewWidth = (this.element.offsetWidth + "px");
    
                oConfig.setProperty("width", sNewWidth);

                this.subscribe("hide", restoreOriginalWidth, 
                    [(sOriginalWidth || ""), sNewWidth]);
            
            }
        }
    }

    YAHOO.extend(Panel, Overlay, {

        /**
        * The Overlay initialization method, which is executed for Overlay and 
        * all of its subclasses. This method is automatically called by the 
        * constructor, and  sets up all DOM references for pre-existing markup, 
        * and creates required markup if it is not already present.
        * @method init
        * @param {String} el The element ID representing the Overlay <em>OR</em>
        * @param {HTMLElement} el The element representing the Overlay
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this Overlay. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {
            /*
                 Note that we don't pass the user config in here yet because 
                 we only want it executed once, at the lowest subclass level
            */

            Panel.superclass.init.call(this, el/*, userConfig*/);

            this.beforeInitEvent.fire(Panel);

            Dom.addClass(this.element, Panel.CSS_PANEL);

            this.buildWrapper();

            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }

            this.subscribe("showMask", this._addFocusHandlers);
            this.subscribe("hideMask", this._removeFocusHandlers);
            this.subscribe("beforeRender", createHeader);

            this.subscribe("render", function() {
                this.setFirstLastFocusable();
                this.subscribe("changeContent", this.setFirstLastFocusable);
            });

            this.subscribe("show", this.focusFirst);

            this.initEvent.fire(Panel);
        },

        /**
         * @method _onElementFocus
         * @private
         *
         * "focus" event handler for a focuable element. Used to automatically
         * blur the element when it receives focus to ensure that a Panel
         * instance's modality is not compromised.
         *
         * @param {Event} e The DOM event object
         */
        _onElementFocus : function(e){

            if(_currentModal === this) {

                var target = Event.getTarget(e),
                    doc = document.documentElement,
                    insideDoc = (target !== doc && target !== window);

                // mask and documentElement checks added for IE, which focuses on the mask when it's clicked on, and focuses on 
                // the documentElement, when the document scrollbars are clicked on
                if (insideDoc && target !== this.element && target !== this.mask && !Dom.isAncestor(this.element, target)) {
                    try {
                        if (this.firstElement) {
                            this.firstElement.focus();
                        } else {
                            if (this._modalFocus) {
                                this._modalFocus.focus();
                            } else {
                                this.innerElement.focus();
                            }
                        }
                    } catch(err){
                        // Just in case we fail to focus
                        try {
                            if (insideDoc && target !== document.body) {
                                target.blur();
                            }
                        } catch(err2) { }
                    }
                }
            }
        },

        /** 
         *  @method _addFocusHandlers
         *  @protected
         *  
         *  "showMask" event handler that adds a "focus" event handler to all
         *  focusable elements in the document to enforce a Panel instance's 
         *  modality from being compromised.
         *
         *  @param p_sType {String} Custom event type
         *  @param p_aArgs {Array} Custom event arguments
         */
        _addFocusHandlers: function(p_sType, p_aArgs) {
            if (!this.firstElement) {
                if (UA.webkit || UA.opera) {
                    if (!this._modalFocus) {
                        this._createHiddenFocusElement();
                    }
                } else {
                    this.innerElement.tabIndex = 0;
                }
            }
            this.setTabLoop(this.firstElement, this.lastElement);
            Event.onFocus(document.documentElement, this._onElementFocus, this, true);
            _currentModal = this;
        },

        /**
         * Creates a hidden focusable element, used to focus on,
         * to enforce modality for browsers in which focus cannot
         * be applied to the container box.
         * 
         * @method _createHiddenFocusElement
         * @private
         */
        _createHiddenFocusElement : function() {
            var e = document.createElement("button");
            e.style.height = "1px";
            e.style.width = "1px";
            e.style.position = "absolute";
            e.style.left = "-10000em";
            e.style.opacity = 0;
            e.tabIndex = -1;
            this.innerElement.appendChild(e);
            this._modalFocus = e;
        },

        /**
         *  @method _removeFocusHandlers
         *  @protected
         *
         *  "hideMask" event handler that removes all "focus" event handlers added 
         *  by the "addFocusEventHandlers" method.
         *
         *  @param p_sType {String} Event type
         *  @param p_aArgs {Array} Event Arguments
         */
        _removeFocusHandlers: function(p_sType, p_aArgs) {
            Event.removeFocusListener(document.documentElement, this._onElementFocus, this);

            if (_currentModal == this) {
                _currentModal = null;
            }
        },

        /**
         * Sets focus to the first element in the Panel.
         *
         * @method focusFirst
         */
        focusFirst: function (type, args, obj) {
            var el = this.firstElement;

            if (args && args[1]) {
                Event.stopEvent(args[1]);
            }

            if (el) {
                try {
                    el.focus();
                } catch(err) {
                    // Ignore
                }
            }
        },

        /**
         * Sets focus to the last element in the Panel.
         *
         * @method focusLast
         */
        focusLast: function (type, args, obj) {
            var el = this.lastElement;

            if (args && args[1]) {
                Event.stopEvent(args[1]);
            }

            if (el) {
                try {
                    el.focus();
                } catch(err) {
                    // Ignore
                }
            }
        },

        /**
         * Sets up a tab, shift-tab loop between the first and last elements
         * provided. NOTE: Sets up the preventBackTab and preventTabOut KeyListener
         * instance properties, which are reset everytime this method is invoked.
         *
         * @method setTabLoop
         * @param {HTMLElement} firstElement
         * @param {HTMLElement} lastElement
         *
         */
        setTabLoop : function(firstElement, lastElement) {

            var backTab = this.preventBackTab, tab = this.preventTabOut,
                showEvent = this.showEvent, hideEvent = this.hideEvent;

            if (backTab) {
                backTab.disable();
                showEvent.unsubscribe(backTab.enable, backTab);
                hideEvent.unsubscribe(backTab.disable, backTab);
                backTab = this.preventBackTab = null;
            }

            if (tab) {
                tab.disable();
                showEvent.unsubscribe(tab.enable, tab);
                hideEvent.unsubscribe(tab.disable,tab);
                tab = this.preventTabOut = null;
            }

            if (firstElement) {
                this.preventBackTab = new KeyListener(firstElement, 
                    {shift:true, keys:9},
                    {fn:this.focusLast, scope:this, correctScope:true}
                );
                backTab = this.preventBackTab;

                showEvent.subscribe(backTab.enable, backTab, true);
                hideEvent.subscribe(backTab.disable,backTab, true);
            }

            if (lastElement) {
                this.preventTabOut = new KeyListener(lastElement, 
                    {shift:false, keys:9}, 
                    {fn:this.focusFirst, scope:this, correctScope:true}
                );
                tab = this.preventTabOut;

                showEvent.subscribe(tab.enable, tab, true);
                hideEvent.subscribe(tab.disable,tab, true);
            }
        },

        /**
         * Returns an array of the currently focusable items which reside within
         * Panel. The set of focusable elements the method looks for are defined
         * in the Panel.FOCUSABLE static property
         *
         * @method getFocusableElements
         * @param {HTMLElement} root element to start from.
         */
        getFocusableElements : function(root) {

            root = root || this.innerElement;

            var focusable = {};
            for (var i = 0; i < Panel.FOCUSABLE.length; i++) {
                focusable[Panel.FOCUSABLE[i]] = true;
            }

            function isFocusable(el) {
                if (el.focus && el.type !== "hidden" && !el.disabled && focusable[el.tagName.toLowerCase()]) {
                    return true;
                }
                return false;
            }

            // Not looking by Tag, since we want elements in DOM order
            return Dom.getElementsBy(isFocusable, null, root);
        },

        /**
         * Sets the firstElement and lastElement instance properties
         * to the first and last focusable elements in the Panel.
         *
         * @method setFirstLastFocusable
         */
        setFirstLastFocusable : function() {

            this.firstElement = null;
            this.lastElement = null;

            var elements = this.getFocusableElements();
            this.focusableElements = elements;

            if (elements.length > 0) {
                this.firstElement = elements[0];
                this.lastElement = elements[elements.length - 1];
            }

            if (this.cfg.getProperty("modal")) {
                this.setTabLoop(this.firstElement, this.lastElement);
            }
        },

        /**
         * Initializes the custom events for Module which are fired 
         * automatically at appropriate times by the Module class.
         */
        initEvents: function () {
            Panel.superclass.initEvents.call(this);

            var SIGNATURE = CustomEvent.LIST;

            /**
            * CustomEvent fired after the modality mask is shown
            * @event showMaskEvent
            */
            this.showMaskEvent = this.createEvent(EVENT_TYPES.SHOW_MASK);
            this.showMaskEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired after the modality mask is hidden
            * @event hideMaskEvent
            */
            this.hideMaskEvent = this.createEvent(EVENT_TYPES.HIDE_MASK);
            this.hideMaskEvent.signature = SIGNATURE;

            /**
            * CustomEvent when the Panel is dragged
            * @event dragEvent
            */
            this.dragEvent = this.createEvent(EVENT_TYPES.DRAG);
            this.dragEvent.signature = SIGNATURE;
        },

        /**
         * Initializes the class's configurable properties which can be changed 
         * using the Panel's Config object (cfg).
         * @method initDefaultConfig
         */
        initDefaultConfig: function () {
            Panel.superclass.initDefaultConfig.call(this);

            // Add panel config properties //

            /**
            * True if the Panel should display a "close" button
            * @config close
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.CLOSE.key, { 
                handler: this.configClose, 
                value: DEFAULT_CONFIG.CLOSE.value, 
                validator: DEFAULT_CONFIG.CLOSE.validator, 
                supercedes: DEFAULT_CONFIG.CLOSE.supercedes 
            });

            /**
            * Boolean specifying if the Panel should be draggable.  The default 
            * value is "true" if the Drag and Drop utility is included, 
            * otherwise it is "false." <strong>PLEASE NOTE:</strong> There is a 
            * known issue in IE 6 (Strict Mode and Quirks Mode) and IE 7 
            * (Quirks Mode) where Panels that either don't have a value set for 
            * their "width" configuration property, or their "width" 
            * configuration property is set to "auto" will only be draggable by
            * placing the mouse on the text of the Panel's header element.
            * To fix this bug, draggable Panels missing a value for their 
            * "width" configuration property, or whose "width" configuration 
            * property is set to "auto" will have it set to the value of 
            * their root HTML element's offsetWidth before they are made 
            * visible.  The calculated width is then removed when the Panel is   
            * hidden. <em>This fix is only applied to draggable Panels in IE 6 
            * (Strict Mode and Quirks Mode) and IE 7 (Quirks Mode)</em>. For 
            * more information on this issue see:
            * SourceForge bugs #1726972 and #1589210.
            * @config draggable
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.DRAGGABLE.key, {
                handler: this.configDraggable,
                value: (Util.DD) ? true : false,
                validator: DEFAULT_CONFIG.DRAGGABLE.validator,
                supercedes: DEFAULT_CONFIG.DRAGGABLE.supercedes
            });

            /**
            * Boolean specifying if the draggable Panel should be drag only, not interacting with drop 
            * targets on the page.
            * <p>
            * When set to true, draggable Panels will not check to see if they are over drop targets,
            * or fire the DragDrop events required to support drop target interaction (onDragEnter, 
            * onDragOver, onDragOut, onDragDrop etc.).
            * If the Panel is not designed to be dropped on any target elements on the page, then this 
            * flag can be set to true to improve performance.
            * </p>
            * <p>
            * When set to false, all drop target related events will be fired.
            * </p>
            * <p>
            * The property is set to false by default to maintain backwards compatibility but should be 
            * set to true if drop target interaction is not required for the Panel, to improve performance.</p>
            * 
            * @config dragOnly
            * @type Boolean
            * @default false
            */
            this.cfg.addProperty(DEFAULT_CONFIG.DRAG_ONLY.key, { 
                value: DEFAULT_CONFIG.DRAG_ONLY.value, 
                validator: DEFAULT_CONFIG.DRAG_ONLY.validator, 
                supercedes: DEFAULT_CONFIG.DRAG_ONLY.supercedes 
            });

            /**
            * Sets the type of underlay to display for the Panel. Valid values 
            * are "shadow," "matte," and "none".  <strong>PLEASE NOTE:</strong> 
            * The creation of the underlay element is deferred until the Panel 
            * is initially made visible.  For Gecko-based browsers on Mac
            * OS X the underlay elment is always created as it is used as a 
            * shim to prevent Aqua scrollbars below a Panel instance from poking 
            * through it (See SourceForge bug #836476).
            * @config underlay
            * @type String
            * @default shadow
            */
            this.cfg.addProperty(DEFAULT_CONFIG.UNDERLAY.key, { 
                handler: this.configUnderlay, 
                value: DEFAULT_CONFIG.UNDERLAY.value, 
                supercedes: DEFAULT_CONFIG.UNDERLAY.supercedes 
            });
        
            /**
            * True if the Panel should be displayed in a modal fashion, 
            * automatically creating a transparent mask over the document that
            * will not be removed until the Panel is dismissed.
            * @config modal
            * @type Boolean
            * @default false
            */
            this.cfg.addProperty(DEFAULT_CONFIG.MODAL.key, { 
                handler: this.configModal, 
                value: DEFAULT_CONFIG.MODAL.value,
                validator: DEFAULT_CONFIG.MODAL.validator, 
                supercedes: DEFAULT_CONFIG.MODAL.supercedes 
            });

            /**
            * A KeyListener (or array of KeyListeners) that will be enabled 
            * when the Panel is shown, and disabled when the Panel is hidden.
            * @config keylisteners
            * @type YAHOO.util.KeyListener[]
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.KEY_LISTENERS.key, { 
                handler: this.configKeyListeners, 
                suppressEvent: DEFAULT_CONFIG.KEY_LISTENERS.suppressEvent, 
                supercedes: DEFAULT_CONFIG.KEY_LISTENERS.supercedes 
            });

            /**
            * UI Strings used by the Panel
            * 
            * @config strings
            * @type Object
            * @default An object literal with the properties shown below:
            *     <dl>
            *         <dt>close</dt><dd><em>String</em> : The string to use for the close icon. Defaults to "Close".</dd>
            *     </dl>
            */
            this.cfg.addProperty(DEFAULT_CONFIG.STRINGS.key, { 
                value:DEFAULT_CONFIG.STRINGS.value,
                handler:this.configStrings,
                validator:DEFAULT_CONFIG.STRINGS.validator,
                supercedes:DEFAULT_CONFIG.STRINGS.supercedes
            });
        },

        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * The default event handler fired when the "close" property is changed.
        * The method controls the appending or hiding of the close icon at the 
        * top right of the Panel.
        * @method configClose
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configClose: function (type, args, obj) {

            var val = args[0],
                oClose = this.close,
                strings = this.cfg.getProperty("strings");

            if (val) {
                if (!oClose) {

                    if (!m_oCloseIconTemplate) {
                        m_oCloseIconTemplate = document.createElement("a");
                        m_oCloseIconTemplate.className = "container-close";
                        m_oCloseIconTemplate.href = "#";
                    }

                    oClose = m_oCloseIconTemplate.cloneNode(true);
                    this.innerElement.appendChild(oClose);

                    oClose.innerHTML = (strings && strings.close) ? strings.close : "&#160;";

                    Event.on(oClose, "click", this._doClose, this, true);

                    this.close = oClose;

                } else {
                    oClose.style.display = "block";
                }

            } else {
                if (oClose) {
                    oClose.style.display = "none";
                }
            }

        },

        /**
         * Event handler for the close icon
         * 
         * @method _doClose
         * @protected
         * 
         * @param {DOMEvent} e
         */
        _doClose : function (e) {
            Event.preventDefault(e);
            this.hide();
        },

        /**
        * The default event handler fired when the "draggable" property 
        * is changed.
        * @method configDraggable
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configDraggable: function (type, args, obj) {
            var val = args[0];

            if (val) {
                if (!Util.DD) {
                    this.cfg.setProperty("draggable", false);
                    return;
                }

                if (this.header) {
                    Dom.setStyle(this.header, "cursor", "move");
                    this.registerDragDrop();
                }

                this.subscribe("beforeShow", setWidthToOffsetWidth);

            } else {

                if (this.dd) {
                    this.dd.unreg();
                }

                if (this.header) {
                    Dom.setStyle(this.header,"cursor","auto");
                }

                this.unsubscribe("beforeShow", setWidthToOffsetWidth);
            }
        },
      
        /**
        * The default event handler fired when the "underlay" property 
        * is changed.
        * @method configUnderlay
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configUnderlay: function (type, args, obj) {

            var bMacGecko = (this.platform == "mac" && UA.gecko),
                sUnderlay = args[0].toLowerCase(),
                oUnderlay = this.underlay,
                oElement = this.element;

            function createUnderlay() {
                var bNew = false;
                if (!oUnderlay) { // create if not already in DOM

                    if (!m_oUnderlayTemplate) {
                        m_oUnderlayTemplate = document.createElement("div");
                        m_oUnderlayTemplate.className = "underlay";
                    }

                    oUnderlay = m_oUnderlayTemplate.cloneNode(false);
                    this.element.appendChild(oUnderlay);

                    this.underlay = oUnderlay;

                    if (bIEQuirks) {
                        this.sizeUnderlay();
                        this.cfg.subscribeToConfigEvent("width", this.sizeUnderlay);
                        this.cfg.subscribeToConfigEvent("height", this.sizeUnderlay);

                        this.changeContentEvent.subscribe(this.sizeUnderlay);
                        YAHOO.widget.Module.textResizeEvent.subscribe(this.sizeUnderlay, this, true);
                    }

                    if (UA.webkit && UA.webkit < 420) {
                        this.changeContentEvent.subscribe(this.forceUnderlayRedraw);
                    }

                    bNew = true;
                }
            }

            function onBeforeShow() {
                var bNew = createUnderlay.call(this);
                if (!bNew && bIEQuirks) {
                    this.sizeUnderlay();
                }
                this._underlayDeferred = false;
                this.beforeShowEvent.unsubscribe(onBeforeShow);
            }

            function destroyUnderlay() {
                if (this._underlayDeferred) {
                    this.beforeShowEvent.unsubscribe(onBeforeShow);
                    this._underlayDeferred = false;
                }

                if (oUnderlay) {
                    this.cfg.unsubscribeFromConfigEvent("width", this.sizeUnderlay);
                    this.cfg.unsubscribeFromConfigEvent("height",this.sizeUnderlay);
                    this.changeContentEvent.unsubscribe(this.sizeUnderlay);
                    this.changeContentEvent.unsubscribe(this.forceUnderlayRedraw);
                    YAHOO.widget.Module.textResizeEvent.unsubscribe(this.sizeUnderlay, this, true);

                    this.element.removeChild(oUnderlay);

                    this.underlay = null;
                }
            }

            switch (sUnderlay) {
                case "shadow":
                    Dom.removeClass(oElement, "matte");
                    Dom.addClass(oElement, "shadow");
                    break;
                case "matte":
                    if (!bMacGecko) {
                        destroyUnderlay.call(this);
                    }
                    Dom.removeClass(oElement, "shadow");
                    Dom.addClass(oElement, "matte");
                    break;
                default:
                    if (!bMacGecko) {
                        destroyUnderlay.call(this);
                    }
                    Dom.removeClass(oElement, "shadow");
                    Dom.removeClass(oElement, "matte");
                    break;
            }

            if ((sUnderlay == "shadow") || (bMacGecko && !oUnderlay)) {
                if (this.cfg.getProperty("visible")) {
                    var bNew = createUnderlay.call(this);
                    if (!bNew && bIEQuirks) {
                        this.sizeUnderlay();
                    }
                } else {
                    if (!this._underlayDeferred) {
                        this.beforeShowEvent.subscribe(onBeforeShow);
                        this._underlayDeferred = true;
                    }
                }
            }
        },
        
        /**
        * The default event handler fired when the "modal" property is 
        * changed. This handler subscribes or unsubscribes to the show and hide
        * events to handle the display or hide of the modality mask.
        * @method configModal
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configModal: function (type, args, obj) {

            var modal = args[0];
            if (modal) {
                if (!this._hasModalityEventListeners) {

                    this.subscribe("beforeShow", this.buildMask);
                    this.subscribe("beforeShow", this.bringToTop);
                    this.subscribe("beforeShow", this.showMask);
                    this.subscribe("hide", this.hideMask);

                    Overlay.windowResizeEvent.subscribe(this.sizeMask, 
                        this, true);

                    this._hasModalityEventListeners = true;
                }
            } else {
                if (this._hasModalityEventListeners) {

                    if (this.cfg.getProperty("visible")) {
                        this.hideMask();
                        this.removeMask();
                    }

                    this.unsubscribe("beforeShow", this.buildMask);
                    this.unsubscribe("beforeShow", this.bringToTop);
                    this.unsubscribe("beforeShow", this.showMask);
                    this.unsubscribe("hide", this.hideMask);

                    Overlay.windowResizeEvent.unsubscribe(this.sizeMask, this);

                    this._hasModalityEventListeners = false;
                }
            }
        },

        /**
        * Removes the modality mask.
        * @method removeMask
        */
        removeMask: function () {

            var oMask = this.mask,
                oParentNode;

            if (oMask) {
                /*
                    Hide the mask before destroying it to ensure that DOM
                    event handlers on focusable elements get removed.
                */
                this.hideMask();

                oParentNode = oMask.parentNode;
                if (oParentNode) {
                    oParentNode.removeChild(oMask);
                }

                this.mask = null;
            }
        },
        
        /**
        * The default event handler fired when the "keylisteners" property 
        * is changed.
        * @method configKeyListeners
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configKeyListeners: function (type, args, obj) {

            var listeners = args[0],
                listener,
                nListeners,
                i;
        
            if (listeners) {

                if (listeners instanceof Array) {

                    nListeners = listeners.length;

                    for (i = 0; i < nListeners; i++) {

                        listener = listeners[i];
        
                        if (!Config.alreadySubscribed(this.showEvent, 
                            listener.enable, listener)) {

                            this.showEvent.subscribe(listener.enable, 
                                listener, true);

                        }

                        if (!Config.alreadySubscribed(this.hideEvent, 
                            listener.disable, listener)) {

                            this.hideEvent.subscribe(listener.disable, 
                                listener, true);

                            this.destroyEvent.subscribe(listener.disable, 
                                listener, true);
                        }
                    }

                } else {

                    if (!Config.alreadySubscribed(this.showEvent, 
                        listeners.enable, listeners)) {

                        this.showEvent.subscribe(listeners.enable, 
                            listeners, true);
                    }

                    if (!Config.alreadySubscribed(this.hideEvent, 
                        listeners.disable, listeners)) {

                        this.hideEvent.subscribe(listeners.disable, 
                            listeners, true);

                        this.destroyEvent.subscribe(listeners.disable, 
                            listeners, true);

                    }

                }

            }

        },

        /**
        * The default handler for the "strings" property
        * @method configStrings
        */
        configStrings : function(type, args, obj) {
            var val = Lang.merge(DEFAULT_CONFIG.STRINGS.value, args[0]);
            this.cfg.setProperty(DEFAULT_CONFIG.STRINGS.key, val, true);
        },

        /**
        * The default event handler fired when the "height" property is changed.
        * @method configHeight
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configHeight: function (type, args, obj) {
            var height = args[0],
                el = this.innerElement;

            Dom.setStyle(el, "height", height);
            this.cfg.refireEvent("iframe");
        },

        /**
         * The default custom event handler executed when the Panel's height is changed, 
         * if the autofillheight property has been set.
         *
         * @method _autoFillOnHeightChange
         * @protected
         * @param {String} type The event type
         * @param {Array} args The array of arguments passed to event subscribers
         * @param {HTMLElement} el The header, body or footer element which is to be resized to fill
         * out the containers height
         */
        _autoFillOnHeightChange : function(type, args, el) {
            Panel.superclass._autoFillOnHeightChange.apply(this, arguments);
            if (bIEQuirks) {
                var panel = this;
                setTimeout(function() {
                    panel.sizeUnderlay();
                },0);
            }
        },

        /**
        * The default event handler fired when the "width" property is changed.
        * @method configWidth
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configWidth: function (type, args, obj) {
    
            var width = args[0],
                el = this.innerElement;
    
            Dom.setStyle(el, "width", width);
            this.cfg.refireEvent("iframe");
    
        },
        
        /**
        * The default event handler fired when the "zIndex" property is changed.
        * @method configzIndex
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configzIndex: function (type, args, obj) {
            Panel.superclass.configzIndex.call(this, type, args, obj);

            if (this.mask || this.cfg.getProperty("modal") === true) {
                var panelZ = Dom.getStyle(this.element, "zIndex");
                if (!panelZ || isNaN(panelZ)) {
                    panelZ = 0;
                }

                if (panelZ === 0) {
                    // Recursive call to configzindex (which should be stopped
                    // from going further because panelZ should no longer === 0)
                    this.cfg.setProperty("zIndex", 1);
                } else {
                    this.stackMask();
                }
            }
        },

        // END BUILT-IN PROPERTY EVENT HANDLERS //
        /**
        * Builds the wrapping container around the Panel that is used for 
        * positioning the shadow and matte underlays. The container element is 
        * assigned to a  local instance variable called container, and the 
        * element is reinserted inside of it.
        * @method buildWrapper
        */
        buildWrapper: function () {

            var elementParent = this.element.parentNode,
                originalElement = this.element,
                wrapper = document.createElement("div");

            wrapper.className = Panel.CSS_PANEL_CONTAINER;
            wrapper.id = originalElement.id + "_c";

            if (elementParent) {
                elementParent.insertBefore(wrapper, originalElement);
            }

            wrapper.appendChild(originalElement);

            this.element = wrapper;
            this.innerElement = originalElement;

            Dom.setStyle(this.innerElement, "visibility", "inherit");
        },

        /**
        * Adjusts the size of the shadow based on the size of the element.
        * @method sizeUnderlay
        */
        sizeUnderlay: function () {
            var oUnderlay = this.underlay,
                oElement;

            if (oUnderlay) {
                oElement = this.element;
                oUnderlay.style.width = oElement.offsetWidth + "px";
                oUnderlay.style.height = oElement.offsetHeight + "px";
            }
        },

        /**
        * Registers the Panel's header for drag & drop capability.
        * @method registerDragDrop
        */
        registerDragDrop: function () {

            var me = this;

            if (this.header) {

                if (!Util.DD) {
                    return;
                }

                var bDragOnly = (this.cfg.getProperty("dragonly") === true);
                this.dd = new Util.DD(this.element.id, this.id, {dragOnly: bDragOnly});

                if (!this.header.id) {
                    this.header.id = this.id + "_h";
                }

                this.dd.startDrag = function () {

                    var offsetHeight,
                        offsetWidth,
                        viewPortWidth,
                        viewPortHeight,
                        scrollX,
                        scrollY;

                    if (YAHOO.env.ua.ie == 6) {
                        Dom.addClass(me.element,"drag");
                    }

                    if (me.cfg.getProperty("constraintoviewport")) {

                        var nViewportOffset = Overlay.VIEWPORT_OFFSET;

                        offsetHeight = me.element.offsetHeight;
                        offsetWidth = me.element.offsetWidth;

                        viewPortWidth = Dom.getViewportWidth();
                        viewPortHeight = Dom.getViewportHeight();

                        scrollX = Dom.getDocumentScrollLeft();
                        scrollY = Dom.getDocumentScrollTop();

                        if (offsetHeight + nViewportOffset < viewPortHeight) {
                            this.minY = scrollY + nViewportOffset;
                            this.maxY = scrollY + viewPortHeight - offsetHeight - nViewportOffset;
                        } else {
                            this.minY = scrollY + nViewportOffset;
                            this.maxY = scrollY + nViewportOffset;
                        }

                        if (offsetWidth + nViewportOffset < viewPortWidth) {
                            this.minX = scrollX + nViewportOffset;
                            this.maxX = scrollX + viewPortWidth - offsetWidth - nViewportOffset;
                        } else {
                            this.minX = scrollX + nViewportOffset;
                            this.maxX = scrollX + nViewportOffset;
                        }

                        this.constrainX = true;
                        this.constrainY = true;
                    } else {
                        this.constrainX = false;
                        this.constrainY = false;
                    }

                    me.dragEvent.fire("startDrag", arguments);
                };

                this.dd.onDrag = function () {
                    me.syncPosition();
                    me.cfg.refireEvent("iframe");
                    if (this.platform == "mac" && YAHOO.env.ua.gecko) {
                        this.showMacGeckoScrollbars();
                    }

                    me.dragEvent.fire("onDrag", arguments);
                };

                this.dd.endDrag = function () {

                    if (YAHOO.env.ua.ie == 6) {
                        Dom.removeClass(me.element,"drag");
                    }

                    me.dragEvent.fire("endDrag", arguments);
                    me.moveEvent.fire(me.cfg.getProperty("xy"));

                };

                this.dd.setHandleElId(this.header.id);
                this.dd.addInvalidHandleType("INPUT");
                this.dd.addInvalidHandleType("SELECT");
                this.dd.addInvalidHandleType("TEXTAREA");
            }
        },
        
        /**
        * Builds the mask that is laid over the document when the Panel is 
        * configured to be modal.
        * @method buildMask
        */
        buildMask: function () {
            var oMask = this.mask;
            if (!oMask) {
                if (!m_oMaskTemplate) {
                    m_oMaskTemplate = document.createElement("div");
                    m_oMaskTemplate.className = "mask";
                    m_oMaskTemplate.innerHTML = "&#160;";
                }
                oMask = m_oMaskTemplate.cloneNode(true);
                oMask.id = this.id + "_mask";

                document.body.insertBefore(oMask, document.body.firstChild);

                this.mask = oMask;

                if (YAHOO.env.ua.gecko && this.platform == "mac") {
                    Dom.addClass(this.mask, "block-scrollbars");
                }

                // Stack mask based on the element zindex
                this.stackMask();
            }
        },

        /**
        * Hides the modality mask.
        * @method hideMask
        */
        hideMask: function () {
            if (this.cfg.getProperty("modal") && this.mask) {
                this.mask.style.display = "none";
                Dom.removeClass(document.body, "masked");
                this.hideMaskEvent.fire();
            }
        },

        /**
        * Shows the modality mask.
        * @method showMask
        */
        showMask: function () {
            if (this.cfg.getProperty("modal") && this.mask) {
                Dom.addClass(document.body, "masked");
                this.sizeMask();
                this.mask.style.display = "block";
                this.showMaskEvent.fire();
            }
        },

        /**
        * Sets the size of the modality mask to cover the entire scrollable 
        * area of the document
        * @method sizeMask
        */
        sizeMask: function () {
            if (this.mask) {

                // Shrink mask first, so it doesn't affect the document size.
                var mask = this.mask,
                    viewWidth = Dom.getViewportWidth(),
                    viewHeight = Dom.getViewportHeight();

                if (mask.offsetHeight > viewHeight) {
                    mask.style.height = viewHeight + "px";
                }

                if (mask.offsetWidth > viewWidth) {
                    mask.style.width = viewWidth + "px";
                }

                // Then size it to the document
                mask.style.height = Dom.getDocumentHeight() + "px";
                mask.style.width = Dom.getDocumentWidth() + "px";
            }
        },

        /**
         * Sets the zindex of the mask, if it exists, based on the zindex of 
         * the Panel element. The zindex of the mask is set to be one less 
         * than the Panel element's zindex.
         * 
         * <p>NOTE: This method will not bump up the zindex of the Panel
         * to ensure that the mask has a non-negative zindex. If you require the
         * mask zindex to be 0 or higher, the zindex of the Panel 
         * should be set to a value higher than 0, before this method is called.
         * </p>
         * @method stackMask
         */
        stackMask: function() {
            if (this.mask) {
                var panelZ = Dom.getStyle(this.element, "zIndex");
                if (!YAHOO.lang.isUndefined(panelZ) && !isNaN(panelZ)) {
                    Dom.setStyle(this.mask, "zIndex", panelZ - 1);
                }
            }
        },

        /**
        * Renders the Panel by inserting the elements that are not already in 
        * the main Panel into their correct places. Optionally appends the 
        * Panel to the specified node prior to the render's execution. NOTE: 
        * For Panels without existing markup, the appendToNode argument is 
        * REQUIRED. If this argument is ommitted and the current element is 
        * not present in the document, the function will return false, 
        * indicating that the render was a failure.
        * @method render
        * @param {String} appendToNode The element id to which the Module 
        * should be appended to prior to rendering <em>OR</em>
        * @param {HTMLElement} appendToNode The element to which the Module 
        * should be appended to prior to rendering
        * @return {boolean} Success or failure of the render
        */
        render: function (appendToNode) {

            return Panel.superclass.render.call(this, 
                appendToNode, this.innerElement);

        },
        
        /**
        * Removes the Panel element from the DOM and sets all child elements
        * to null.
        * @method destroy
        */
        destroy: function () {
            Overlay.windowResizeEvent.unsubscribe(this.sizeMask, this);
            this.removeMask();
            if (this.close) {
                Event.purgeElement(this.close);
            }
            Panel.superclass.destroy.call(this);  
        },

        /**
         * Forces the underlay element to be repainted through the application/removal 
         * of a yui-force-redraw class to the underlay element.
         *
         * @method forceUnderlayRedraw
         */
        forceUnderlayRedraw : function () {
            var u = this.underlay;
            Dom.addClass(u, "yui-force-redraw");
            setTimeout(function(){Dom.removeClass(u, "yui-force-redraw");}, 0);
        },

        /**
        * Returns a String representation of the object.
        * @method toString
        * @return {String} The string representation of the Panel.
        */
        toString: function () {
            return "Panel " + this.id;
        }
    
    });

}());

(function () {

    /**
    * <p>
    * Dialog is an implementation of Panel that can be used to submit form 
    * data.
    * </p>
    * <p>
    * Built-in functionality for buttons with event handlers is included. 
    * If the optional YUI Button dependancy is included on the page, the buttons
    * created will be instances of YAHOO.widget.Button, otherwise regular HTML buttons
    * will be created.
    * </p>
    * <p>
    * Forms can be processed in 3 ways -- via an asynchronous Connection utility call, 
    * a simple form POST or GET, or manually. The YUI Connection utility should be
    * included if you're using the default "async" postmethod, but is not required if
    * you're using any of the other postmethod values.
    * </p>
    * @namespace YAHOO.widget
    * @class Dialog
    * @extends YAHOO.widget.Panel
    * @constructor
    * @param {String} el The element ID representing the Dialog <em>OR</em>
    * @param {HTMLElement} el The element representing the Dialog
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this Dialog. See configuration 
    * documentation for more details.
    */
    YAHOO.widget.Dialog = function (el, userConfig) {
        YAHOO.widget.Dialog.superclass.constructor.call(this, el, userConfig);
    };

    var Event = YAHOO.util.Event,
        CustomEvent = YAHOO.util.CustomEvent,
        Dom = YAHOO.util.Dom,
        Dialog = YAHOO.widget.Dialog,
        Lang = YAHOO.lang,

        /**
         * Constant representing the name of the Dialog's events
         * @property EVENT_TYPES
         * @private
         * @final
         * @type Object
         */
        EVENT_TYPES = {
            "BEFORE_SUBMIT": "beforeSubmit",
            "SUBMIT": "submit",
            "MANUAL_SUBMIT": "manualSubmit",
            "ASYNC_SUBMIT": "asyncSubmit",
            "FORM_SUBMIT": "formSubmit",
            "CANCEL": "cancel"
        },

        /**
        * Constant representing the Dialog's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {

            "POST_METHOD": { 
                key: "postmethod", 
                value: "async"
            },

            "POST_DATA" : {
                key: "postdata",
                value: null
            },

            "BUTTONS": {
                key: "buttons",
                value: "none",
                supercedes: ["visible"]
            },

            "HIDEAFTERSUBMIT" : {
                key: "hideaftersubmit",
                value: true
            }

        };

    /**
    * Constant representing the default CSS class used for a Dialog
    * @property YAHOO.widget.Dialog.CSS_DIALOG
    * @static
    * @final
    * @type String
    */
    Dialog.CSS_DIALOG = "yui-dialog";

    function removeButtonEventHandlers() {

        var aButtons = this._aButtons,
            nButtons,
            oButton,
            i;

        if (Lang.isArray(aButtons)) {
            nButtons = aButtons.length;

            if (nButtons > 0) {
                i = nButtons - 1;
                do {
                    oButton = aButtons[i];

                    if (YAHOO.widget.Button && oButton instanceof YAHOO.widget.Button) {
                        oButton.destroy();
                    }
                    else if (oButton.tagName.toUpperCase() == "BUTTON") {
                        Event.purgeElement(oButton);
                        Event.purgeElement(oButton, false);
                    }
                }
                while (i--);
            }
        }
    }

    YAHOO.extend(Dialog, YAHOO.widget.Panel, { 

        /**
        * @property form
        * @description Object reference to the Dialog's 
        * <code>&#60;form&#62;</code> element.
        * @default null 
        * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-40002357">HTMLFormElement</a>
        */
        form: null,
    
        /**
        * Initializes the class's configurable properties which can be changed 
        * using the Dialog's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
            Dialog.superclass.initDefaultConfig.call(this);

            /**
            * The internally maintained callback object for use with the 
            * Connection utility. The format of the callback object is 
            * similar to Connection Manager's callback object and is 
            * simply passed through to Connection Manager when the async 
            * request is made.
            * @property callback
            * @type Object
            */
            this.callback = {

                /**
                * The function to execute upon success of the 
                * Connection submission (when the form does not
                * contain a file input element).
                * 
                * @property callback.success
                * @type Function
                */
                success: null,

                /**
                * The function to execute upon failure of the 
                * Connection submission
                * @property callback.failure
                * @type Function
                */
                failure: null,

                /**
                *<p>
                * The function to execute upon success of the 
                * Connection submission, when the form contains
                * a file input element.
                * </p>
                * <p>
                * <em>NOTE:</em> Connection manager will not
                * invoke the success or failure handlers for the file
                * upload use case. This will be the only callback
                * handler invoked.
                * </p>
                * <p>
                * For more information, see the <a href="http://developer.yahoo.com/yui/connection/#file">
                * Connection Manager documenation on file uploads</a>.
                * </p>
                * @property callback.upload
                * @type Function
                */

                /**
                * The arbitraty argument or arguments to pass to the Connection 
                * callback functions
                * @property callback.argument
                * @type Object
                */
                argument: null

            };

            // Add form dialog config properties //
            /**
            * The method to use for posting the Dialog's form. Possible values 
            * are "async", "form", and "manual".
            * @config postmethod
            * @type String
            * @default async
            */
            this.cfg.addProperty(DEFAULT_CONFIG.POST_METHOD.key, {
                handler: this.configPostMethod, 
                value: DEFAULT_CONFIG.POST_METHOD.value, 
                validator: function (val) {
                    if (val != "form" && val != "async" && val != "none" && 
                        val != "manual") {
                        return false;
                    } else {
                        return true;
                    }
                }
            });

            /**
            * Any additional post data which needs to be sent when using the 
            * <a href="#config_postmethod">async</a> postmethod for dialog POST submissions.
            * The format for the post data string is defined by Connection Manager's 
            * <a href="YAHOO.util.Connect.html#method_asyncRequest">asyncRequest</a> 
            * method.
            * @config postdata
            * @type String
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.POST_DATA.key, {
                value: DEFAULT_CONFIG.POST_DATA.value
            });

            /**
            * This property is used to configure whether or not the 
            * dialog should be automatically hidden after submit.
            * 
            * @config hideaftersubmit
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.HIDEAFTERSUBMIT.key, {
                value: DEFAULT_CONFIG.HIDEAFTERSUBMIT.value
            });

            /**
            * Array of object literals, each containing a set of properties 
            * defining a button to be appended into the Dialog's footer.
            *
            * <p>Each button object in the buttons array can have three properties:</p>
            * <dl>
            *    <dt>text:</dt>
            *    <dd>
            *       The text that will display on the face of the button. The text can 
            *       include HTML, as long as it is compliant with HTML Button specifications.
            *    </dd>
            *    <dt>handler:</dt>
            *    <dd>Can be either:
            *    <ol>
            *       <li>A reference to a function that should fire when the 
            *       button is clicked.  (In this case scope of this function is 
            *       always its Dialog instance.)</li>
            *
            *       <li>An object literal representing the code to be 
            *       executed when the button is clicked.
            *       
            *       <p>Format:</p>
            *
            *       <p>
            *       <code>{
            *       <br>
            *       <strong>fn:</strong> Function, &#47;&#47;
            *       The handler to call when  the event fires.
            *       <br>
            *       <strong>obj:</strong> Object, &#47;&#47; 
            *       An  object to pass back to the handler.
            *       <br>
            *       <strong>scope:</strong> Object &#47;&#47; 
            *       The object to use for the scope of the handler.
            *       <br>
            *       }</code>
            *       </p>
            *       </li>
            *     </ol>
            *     </dd>
            *     <dt>isDefault:</dt>
            *     <dd>
            *        An optional boolean value that specifies that a button 
            *        should be highlighted and focused by default.
            *     </dd>
            * </dl>
            *
            * <em>NOTE:</em>If the YUI Button Widget is included on the page, 
            * the buttons created will be instances of YAHOO.widget.Button. 
            * Otherwise, HTML Buttons (<code>&#60;BUTTON&#62;</code>) will be 
            * created.
            *
            * @config buttons
            * @type {Array|String}
            * @default "none"
            */
            this.cfg.addProperty(DEFAULT_CONFIG.BUTTONS.key, {
                handler: this.configButtons,
                value: DEFAULT_CONFIG.BUTTONS.value,
                supercedes : DEFAULT_CONFIG.BUTTONS.supercedes
            }); 

        },

        /**
        * Initializes the custom events for Dialog which are fired 
        * automatically at appropriate times by the Dialog class.
        * @method initEvents
        */
        initEvents: function () {
            Dialog.superclass.initEvents.call(this);

            var SIGNATURE = CustomEvent.LIST;

            /**
            * CustomEvent fired prior to submission
            * @event beforeSubmitEvent
            */ 
            this.beforeSubmitEvent = 
                this.createEvent(EVENT_TYPES.BEFORE_SUBMIT);
            this.beforeSubmitEvent.signature = SIGNATURE;
            
            /**
            * CustomEvent fired after submission
            * @event submitEvent
            */
            this.submitEvent = this.createEvent(EVENT_TYPES.SUBMIT);
            this.submitEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired for manual submission, before the generic submit event is fired
            * @event manualSubmitEvent
            */
            this.manualSubmitEvent = 
                this.createEvent(EVENT_TYPES.MANUAL_SUBMIT);
            this.manualSubmitEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired after asynchronous submission, before the generic submit event is fired
            *
            * @event asyncSubmitEvent
            * @param {Object} conn The connection object, returned by YAHOO.util.Connect.asyncRequest
            */
            this.asyncSubmitEvent = this.createEvent(EVENT_TYPES.ASYNC_SUBMIT);
            this.asyncSubmitEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired after form-based submission, before the generic submit event is fired
            * @event formSubmitEvent
            */
            this.formSubmitEvent = this.createEvent(EVENT_TYPES.FORM_SUBMIT);
            this.formSubmitEvent.signature = SIGNATURE;

            /**
            * CustomEvent fired after cancel
            * @event cancelEvent
            */
            this.cancelEvent = this.createEvent(EVENT_TYPES.CANCEL);
            this.cancelEvent.signature = SIGNATURE;
        
        },
        
        /**
        * The Dialog initialization method, which is executed for Dialog and 
        * all of its subclasses. This method is automatically called by the 
        * constructor, and  sets up all DOM references for pre-existing markup, 
        * and creates required markup if it is not already present.
        * 
        * @method init
        * @param {String} el The element ID representing the Dialog <em>OR</em>
        * @param {HTMLElement} el The element representing the Dialog
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this Dialog. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {

            /*
                 Note that we don't pass the user config in here yet because 
                 we only want it executed once, at the lowest subclass level
            */

            Dialog.superclass.init.call(this, el/*, userConfig*/); 

            this.beforeInitEvent.fire(Dialog);

            Dom.addClass(this.element, Dialog.CSS_DIALOG);

            this.cfg.setProperty("visible", false);

            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }

            this.showEvent.subscribe(this.focusFirst, this, true);
            this.beforeHideEvent.subscribe(this.blurButtons, this, true);

            this.subscribe("changeBody", this.registerForm);

            this.initEvent.fire(Dialog);
        },

        /**
        * Submits the Dialog's form depending on the value of the 
        * "postmethod" configuration property.  <strong>Please note:
        * </strong> As of version 2.3 this method will automatically handle 
        * asyncronous file uploads should the Dialog instance's form contain 
        * <code>&#60;input type="file"&#62;</code> elements.  If a Dialog 
        * instance will be handling asyncronous file uploads, its 
        * <code>callback</code> property will need to be setup with a 
        * <code>upload</code> handler rather than the standard 
        * <code>success</code> and, or <code>failure</code> handlers.  For more 
        * information, see the <a href="http://developer.yahoo.com/yui/
        * connection/#file">Connection Manager documenation on file uploads</a>.
        * @method doSubmit
        */
        doSubmit: function () {

            var Connect = YAHOO.util.Connect,
                oForm = this.form,
                bUseFileUpload = false,
                bUseSecureFileUpload = false,
                aElements,
                nElements,
                i,
                formAttrs;

            switch (this.cfg.getProperty("postmethod")) {

                case "async":
                    aElements = oForm.elements;
                    nElements = aElements.length;

                    if (nElements > 0) {
                        i = nElements - 1;
                        do {
                            if (aElements[i].type == "file") {
                                bUseFileUpload = true;
                                break;
                            }
                        }
                        while(i--);
                    }

                    if (bUseFileUpload && YAHOO.env.ua.ie && this.isSecure) {
                        bUseSecureFileUpload = true;
                    }

                    formAttrs = this._getFormAttributes(oForm);

                    Connect.setForm(oForm, bUseFileUpload, bUseSecureFileUpload);

                    var postData = this.cfg.getProperty("postdata");
                    var c = Connect.asyncRequest(formAttrs.method, formAttrs.action, this.callback, postData);

                    this.asyncSubmitEvent.fire(c);

                    break;

                case "form":
                    oForm.submit();
                    this.formSubmitEvent.fire();
                    break;

                case "none":
                case "manual":
                    this.manualSubmitEvent.fire();
                    break;
            }
        },

        /**
         * Retrieves important attributes (currently method and action) from
         * the form element, accounting for any elements which may have the same name 
         * as the attributes. Defaults to "POST" and "" for method and action respectively
         * if the attribute cannot be retrieved.
         *
         * @method _getFormAttributes
         * @protected
         * @param {HTMLFormElement} oForm The HTML Form element from which to retrieve the attributes
         * @return {Object} Object literal, with method and action String properties.
         */
        _getFormAttributes : function(oForm){
            var attrs = {
                method : null,
                action : null
            };

            if (oForm) {
                if (oForm.getAttributeNode) {
                    var action = oForm.getAttributeNode("action");
                    var method = oForm.getAttributeNode("method");

                    if (action) {
                        attrs.action = action.value;
                    }

                    if (method) {
                        attrs.method = method.value;
                    }

                } else {
                    attrs.action = oForm.getAttribute("action");
                    attrs.method = oForm.getAttribute("method");
                }
            }

            attrs.method = (Lang.isString(attrs.method) ? attrs.method : "POST").toUpperCase();
            attrs.action = Lang.isString(attrs.action) ? attrs.action : "";

            return attrs;
        },

        /**
        * Prepares the Dialog's internal FORM object, creating one if one is
        * not currently present.
        * @method registerForm
        */
        registerForm: function() {

            var form = this.element.getElementsByTagName("form")[0];

            if (this.form) {
                if (this.form == form && Dom.isAncestor(this.element, this.form)) {
                    return;
                } else {
                    Event.purgeElement(this.form);
                    this.form = null;
                }
            }

            if (!form) {
                form = document.createElement("form");
                form.name = "frm_" + this.id;
                this.body.appendChild(form);
            }

            if (form) {
                this.form = form;
                Event.on(form, "submit", this._submitHandler, this, true);
            }
        },

        /**
         * Internal handler for the form submit event
         *
         * @method _submitHandler
         * @protected
         * @param {DOMEvent} e The DOM Event object
         */
        _submitHandler : function(e) {
            Event.stopEvent(e);
            this.submit();
            this.form.blur();
        },

        /**
         * Sets up a tab, shift-tab loop between the first and last elements
         * provided. NOTE: Sets up the preventBackTab and preventTabOut KeyListener
         * instance properties, which are reset everytime this method is invoked.
         *
         * @method setTabLoop
         * @param {HTMLElement} firstElement
         * @param {HTMLElement} lastElement
         *
         */
        setTabLoop : function(firstElement, lastElement) {

            firstElement = firstElement || this.firstButton;
            lastElement = this.lastButton || lastElement;

            Dialog.superclass.setTabLoop.call(this, firstElement, lastElement);
        },

        /**
         * Configures instance properties, pointing to the 
         * first and last focusable elements in the Dialog's form.
         *
         * @method setFirstLastFocusable
         */
        setFirstLastFocusable : function() {

            Dialog.superclass.setFirstLastFocusable.call(this);

            var i, l, el, elements = this.focusableElements;

            this.firstFormElement = null;
            this.lastFormElement = null;

            if (this.form && elements && elements.length > 0) {
                l = elements.length;

                for (i = 0; i < l; ++i) {
                    el = elements[i];
                    if (this.form === el.form) {
                        this.firstFormElement = el;
                        break;
                    }
                }

                for (i = l-1; i >= 0; --i) {
                    el = elements[i];
                    if (this.form === el.form) {
                        this.lastFormElement = el;
                        break;
                    }
                }
            }
        },

        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        /**
        * The default event handler fired when the "close" property is 
        * changed. The method controls the appending or hiding of the close
        * icon at the top right of the Dialog.
        * @method configClose
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For 
        * configuration handlers, args[0] will equal the newly applied value 
        * for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configClose: function (type, args, obj) {
            Dialog.superclass.configClose.apply(this, arguments);
        },

        /**
         * Event handler for the close icon
         * 
         * @method _doClose
         * @protected
         * 
         * @param {DOMEvent} e
         */
         _doClose : function(e) {
            Event.preventDefault(e);
            this.cancel();
        },

        /**
        * The default event handler for the "buttons" configuration property
        * @method configButtons
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configButtons: function (type, args, obj) {

            var Button = YAHOO.widget.Button,
                aButtons = args[0],
                oInnerElement = this.innerElement,
                oButton,
                oButtonEl,
                oYUIButton,
                nButtons,
                oSpan,
                oFooter,
                i;

            removeButtonEventHandlers.call(this);

            this._aButtons = null;

            if (Lang.isArray(aButtons)) {

                oSpan = document.createElement("span");
                oSpan.className = "button-group";
                nButtons = aButtons.length;

                this._aButtons = [];
                this.defaultHtmlButton = null;

                for (i = 0; i < nButtons; i++) {
                    oButton = aButtons[i];

                    if (Button) {
                        oYUIButton = new Button({ label: oButton.text});
                        oYUIButton.appendTo(oSpan);

                        oButtonEl = oYUIButton.get("element");

                        if (oButton.isDefault) {
                            oYUIButton.addClass("default");
                            this.defaultHtmlButton = oButtonEl;
                        }

                        if (Lang.isFunction(oButton.handler)) {

                            oYUIButton.set("onclick", { 
                                fn: oButton.handler, 
                                obj: this, 
                                scope: this 
                            });

                        } else if (Lang.isObject(oButton.handler) && Lang.isFunction(oButton.handler.fn)) {

                            oYUIButton.set("onclick", { 
                                fn: oButton.handler.fn, 
                                obj: ((!Lang.isUndefined(oButton.handler.obj)) ? oButton.handler.obj : this), 
                                scope: (oButton.handler.scope || this) 
                            });

                        }

                        this._aButtons[this._aButtons.length] = oYUIButton;

                    } else {

                        oButtonEl = document.createElement("button");
                        oButtonEl.setAttribute("type", "button");

                        if (oButton.isDefault) {
                            oButtonEl.className = "default";
                            this.defaultHtmlButton = oButtonEl;
                        }

                        oButtonEl.innerHTML = oButton.text;

                        if (Lang.isFunction(oButton.handler)) {
                            Event.on(oButtonEl, "click", oButton.handler, this, true);
                        } else if (Lang.isObject(oButton.handler) && 
                            Lang.isFunction(oButton.handler.fn)) {
    
                            Event.on(oButtonEl, "click", 
                                oButton.handler.fn, 
                                ((!Lang.isUndefined(oButton.handler.obj)) ? oButton.handler.obj : this), 
                                (oButton.handler.scope || this));
                        }

                        oSpan.appendChild(oButtonEl);
                        this._aButtons[this._aButtons.length] = oButtonEl;
                    }

                    oButton.htmlButton = oButtonEl;

                    if (i === 0) {
                        this.firstButton = oButtonEl;
                    }

                    if (i == (nButtons - 1)) {
                        this.lastButton = oButtonEl;
                    }
                }

                this.setFooter(oSpan);

                oFooter = this.footer;

                if (Dom.inDocument(this.element) && !Dom.isAncestor(oInnerElement, oFooter)) {
                    oInnerElement.appendChild(oFooter);
                }

                this.buttonSpan = oSpan;

            } else { // Do cleanup
                oSpan = this.buttonSpan;
                oFooter = this.footer;
                if (oSpan && oFooter) {
                    oFooter.removeChild(oSpan);
                    this.buttonSpan = null;
                    this.firstButton = null;
                    this.lastButton = null;
                    this.defaultHtmlButton = null;
                }
            }

            this.changeContentEvent.fire();
        },

        /**
        * @method getButtons
        * @description Returns an array containing each of the Dialog's 
        * buttons, by default an array of HTML <code>&#60;BUTTON&#62;</code> 
        * elements.  If the Dialog's buttons were created using the 
        * YAHOO.widget.Button class (via the inclusion of the optional Button 
        * dependancy on the page), an array of YAHOO.widget.Button instances 
        * is returned.
        * @return {Array}
        */
        getButtons: function () {
            return this._aButtons || null;
        },

        /**
         * <p>
         * Sets focus to the first focusable element in the Dialog's form if found, 
         * else, the default button if found, else the first button defined via the 
         * "buttons" configuration property.
         * </p>
         * <p>
         * This method is invoked when the Dialog is made visible.
         * </p>
         * @method focusFirst
         */
        focusFirst: function (type, args, obj) {

            var el = this.firstFormElement;

            if (args && args[1]) {
                Event.stopEvent(args[1]);
            }

            if (el) {
                try {
                    el.focus();
                } catch(oException) {
                    // Ignore
                }
            } else {
                if (this.defaultHtmlButton) {
                    this.focusDefaultButton();
                } else {
                    this.focusFirstButton();
                }
            }
        },

        /**
        * Sets focus to the last element in the Dialog's form or the last 
        * button defined via the "buttons" configuration property.
        * @method focusLast
        */
        focusLast: function (type, args, obj) {

            var aButtons = this.cfg.getProperty("buttons"),
                el = this.lastFormElement;

            if (args && args[1]) {
                Event.stopEvent(args[1]);
            }

            if (aButtons && Lang.isArray(aButtons)) {
                this.focusLastButton();
            } else {
                if (el) {
                    try {
                        el.focus();
                    } catch(oException) {
                        // Ignore
                    }
                }
            }
        },

        /**
         * Helper method to normalize button references. It either returns the 
         * YUI Button instance for the given element if found,
         * or the passes back the HTMLElement reference if a corresponding YUI Button
         * reference is not found or YAHOO.widget.Button does not exist on the page.
         *
         * @method _getButton
         * @private
         * @param {HTMLElement} button
         * @return {YAHOO.widget.Button|HTMLElement}
         */
        _getButton : function(button) {
            var Button = YAHOO.widget.Button;

            // If we have an HTML button and YUI Button is on the page, 
            // get the YUI Button reference if available.
            if (Button && button && button.nodeName && button.id) {
                button = Button.getButton(button.id) || button;
            }

            return button;
        },

        /**
        * Sets the focus to the button that is designated as the default via 
        * the "buttons" configuration property. By default, this method is 
        * called when the Dialog is made visible.
        * @method focusDefaultButton
        */
        focusDefaultButton: function () {
            var button = this._getButton(this.defaultHtmlButton);
            if (button) {
                /*
                    Place the call to the "focus" method inside a try/catch
                    block to prevent IE from throwing JavaScript errors if
                    the element is disabled or hidden.
                */
                try {
                    button.focus();
                } catch(oException) {
                }
            }
        },

        /**
        * Blurs all the buttons defined via the "buttons" 
        * configuration property.
        * @method blurButtons
        */
        blurButtons: function () {
            
            var aButtons = this.cfg.getProperty("buttons"),
                nButtons,
                oButton,
                oElement,
                i;

            if (aButtons && Lang.isArray(aButtons)) {
                nButtons = aButtons.length;
                if (nButtons > 0) {
                    i = (nButtons - 1);
                    do {
                        oButton = aButtons[i];
                        if (oButton) {
                            oElement = this._getButton(oButton.htmlButton);
                            if (oElement) {
                                /*
                                    Place the call to the "blur" method inside  
                                    a try/catch block to prevent IE from  
                                    throwing JavaScript errors if the element 
                                    is disabled or hidden.
                                */
                                try {
                                    oElement.blur();
                                } catch(oException) {
                                    // ignore
                                }
                            }
                        }
                    } while(i--);
                }
            }
        },

        /**
        * Sets the focus to the first button created via the "buttons"
        * configuration property.
        * @method focusFirstButton
        */
        focusFirstButton: function () {

            var aButtons = this.cfg.getProperty("buttons"),
                oButton,
                oElement;

            if (aButtons && Lang.isArray(aButtons)) {
                oButton = aButtons[0];
                if (oButton) {
                    oElement = this._getButton(oButton.htmlButton);
                    if (oElement) {
                        /*
                            Place the call to the "focus" method inside a 
                            try/catch block to prevent IE from throwing 
                            JavaScript errors if the element is disabled 
                            or hidden.
                        */
                        try {
                            oElement.focus();
                        } catch(oException) {
                            // ignore
                        }
                    }
                }
            }
        },

        /**
        * Sets the focus to the last button created via the "buttons" 
        * configuration property.
        * @method focusLastButton
        */
        focusLastButton: function () {

            var aButtons = this.cfg.getProperty("buttons"),
                nButtons,
                oButton,
                oElement;

            if (aButtons && Lang.isArray(aButtons)) {
                nButtons = aButtons.length;
                if (nButtons > 0) {
                    oButton = aButtons[(nButtons - 1)];

                    if (oButton) {
                        oElement = this._getButton(oButton.htmlButton);
                        if (oElement) {
                            /*
                                Place the call to the "focus" method inside a 
                                try/catch block to prevent IE from throwing 
                                JavaScript errors if the element is disabled
                                or hidden.
                            */
        
                            try {
                                oElement.focus();
                            } catch(oException) {
                                // Ignore
                            }
                        }
                    }
                }
            }
        },

        /**
        * The default event handler for the "postmethod" configuration property
        * @method configPostMethod
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For 
        * configuration handlers, args[0] will equal the newly applied value 
        * for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configPostMethod: function (type, args, obj) {
            this.registerForm();
        },

        // END BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * Built-in function hook for writing a validation function that will 
        * be checked for a "true" value prior to a submit. This function, as 
        * implemented by default, always returns true, so it should be 
        * overridden if validation is necessary.
        * @method validate
        */
        validate: function () {
            return true;
        },
        
        /**
        * Executes a submit of the Dialog if validation 
        * is successful. By default the Dialog is hidden
        * after submission, but you can set the "hideaftersubmit"
        * configuration property to false, to prevent the Dialog
        * from being hidden.
        * 
        * @method submit
        */
        submit: function () {
            if (this.validate()) {
                this.beforeSubmitEvent.fire();
                this.doSubmit();
                this.submitEvent.fire();

                if (this.cfg.getProperty("hideaftersubmit")) {
                    this.hide();
                }

                return true;
            } else {
                return false;
            }
        },

        /**
        * Executes the cancel of the Dialog followed by a hide.
        * @method cancel
        */
        cancel: function () {
            this.cancelEvent.fire();
            this.hide();
        },
        
        /**
        * Returns a JSON-compatible data structure representing the data 
        * currently contained in the form.
        * @method getData
        * @return {Object} A JSON object reprsenting the data of the 
        * current form.
        */
        getData: function () {

            var oForm = this.form,
                aElements,
                nTotalElements,
                oData,
                sName,
                oElement,
                nElements,
                sType,
                sTagName,
                aOptions,
                nOptions,
                aValues,
                oOption,
                sValue,
                oRadio,
                oCheckbox,
                i,
                n;    
    
            function isFormElement(p_oElement) {
                var sTag = p_oElement.tagName.toUpperCase();
                return ((sTag == "INPUT" || sTag == "TEXTAREA" || 
                        sTag == "SELECT") && p_oElement.name == sName);
            }

            if (oForm) {

                aElements = oForm.elements;
                nTotalElements = aElements.length;
                oData = {};

                for (i = 0; i < nTotalElements; i++) {
                    sName = aElements[i].name;

                    /*
                        Using "Dom.getElementsBy" to safeguard user from JS 
                        errors that result from giving a form field (or set of 
                        fields) the same name as a native method of a form 
                        (like "submit") or a DOM collection (such as the "item"
                        method). Originally tried accessing fields via the 
                        "namedItem" method of the "element" collection, but 
                        discovered that it won't return a collection of fields 
                        in Gecko.
                    */

                    oElement = Dom.getElementsBy(isFormElement, "*", oForm);
                    nElements = oElement.length;

                    if (nElements > 0) {
                        if (nElements == 1) {
                            oElement = oElement[0];

                            sType = oElement.type;
                            sTagName = oElement.tagName.toUpperCase();

                            switch (sTagName) {
                                case "INPUT":
                                    if (sType == "checkbox") {
                                        oData[sName] = oElement.checked;
                                    } else if (sType != "radio") {
                                        oData[sName] = oElement.value;
                                    }
                                    break;

                                case "TEXTAREA":
                                    oData[sName] = oElement.value;
                                    break;
    
                                case "SELECT":
                                    aOptions = oElement.options;
                                    nOptions = aOptions.length;
                                    aValues = [];
    
                                    for (n = 0; n < nOptions; n++) {
                                        oOption = aOptions[n];
    
                                        if (oOption.selected) {
                                            sValue = oOption.value;
                                            if (!sValue || sValue === "") {
                                                sValue = oOption.text;
                                            }
                                            aValues[aValues.length] = sValue;
                                        }
                                    }
                                    oData[sName] = aValues;
                                    break;
                            }
        
                        } else {
                            sType = oElement[0].type;
                            switch (sType) {
                                case "radio":
                                    for (n = 0; n < nElements; n++) {
                                        oRadio = oElement[n];
                                        if (oRadio.checked) {
                                            oData[sName] = oRadio.value;
                                            break;
                                        }
                                    }
                                    break;
        
                                case "checkbox":
                                    aValues = [];
                                    for (n = 0; n < nElements; n++) {
                                        oCheckbox = oElement[n];
                                        if (oCheckbox.checked) {
                                            aValues[aValues.length] =  oCheckbox.value;
                                        }
                                    }
                                    oData[sName] = aValues;
                                    break;
                            }
                        }
                    }
                }
            }

            return oData;
        },

        /**
        * Removes the Panel element from the DOM and sets all child elements 
        * to null.
        * @method destroy
        */
        destroy: function () {
            removeButtonEventHandlers.call(this);

            this._aButtons = null;

            var aForms = this.element.getElementsByTagName("form"),
                oForm;

            if (aForms.length > 0) {
                oForm = aForms[0];

                if (oForm) {
                    Event.purgeElement(oForm);
                    if (oForm.parentNode) {
                        oForm.parentNode.removeChild(oForm);
                    }
                    this.form = null;
                }
            }
            Dialog.superclass.destroy.call(this);
        },

        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the Dialog
        */
        toString: function () {
            return "Dialog " + this.id;
        }
    
    });

}());

(function () {

    /**
    * SimpleDialog is a simple implementation of Dialog that can be used to 
    * submit a single value. Forms can be processed in 3 ways -- via an 
    * asynchronous Connection utility call, a simple form POST or GET, 
    * or manually.
    * @namespace YAHOO.widget
    * @class SimpleDialog
    * @extends YAHOO.widget.Dialog
    * @constructor
    * @param {String} el The element ID representing the SimpleDialog 
    * <em>OR</em>
    * @param {HTMLElement} el The element representing the SimpleDialog
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this SimpleDialog. See 
    * configuration documentation for more details.
    */
    YAHOO.widget.SimpleDialog = function (el, userConfig) {
    
        YAHOO.widget.SimpleDialog.superclass.constructor.call(this, 
            el, userConfig);
    
    };

    var Dom = YAHOO.util.Dom,
        SimpleDialog = YAHOO.widget.SimpleDialog,
    
        /**
        * Constant representing the SimpleDialog's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {
        
            "ICON": { 
                key: "icon", 
                value: "none", 
                suppressEvent: true  
            },
        
            "TEXT": { 
                key: "text", 
                value: "", 
                suppressEvent: true, 
                supercedes: ["icon"] 
            }
        
        };

    /**
    * Constant for the standard network icon for a blocking action
    * @property YAHOO.widget.SimpleDialog.ICON_BLOCK
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_BLOCK = "blckicon";
    
    /**
    * Constant for the standard network icon for alarm
    * @property YAHOO.widget.SimpleDialog.ICON_ALARM
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_ALARM = "alrticon";
    
    /**
    * Constant for the standard network icon for help
    * @property YAHOO.widget.SimpleDialog.ICON_HELP
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_HELP  = "hlpicon";
    
    /**
    * Constant for the standard network icon for info
    * @property YAHOO.widget.SimpleDialog.ICON_INFO
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_INFO  = "infoicon";
    
    /**
    * Constant for the standard network icon for warn
    * @property YAHOO.widget.SimpleDialog.ICON_WARN
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_WARN  = "warnicon";
    
    /**
    * Constant for the standard network icon for a tip
    * @property YAHOO.widget.SimpleDialog.ICON_TIP
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_TIP   = "tipicon";

    /**
    * Constant representing the name of the CSS class applied to the element 
    * created by the "icon" configuration property.
    * @property YAHOO.widget.SimpleDialog.ICON_CSS_CLASSNAME
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_CSS_CLASSNAME = "yui-icon";
    
    /**
    * Constant representing the default CSS class used for a SimpleDialog
    * @property YAHOO.widget.SimpleDialog.CSS_SIMPLEDIALOG
    * @static
    * @final
    * @type String
    */
    SimpleDialog.CSS_SIMPLEDIALOG = "yui-simple-dialog";

    
    YAHOO.extend(SimpleDialog, YAHOO.widget.Dialog, {
    
        /**
        * Initializes the class's configurable properties which can be changed 
        * using the SimpleDialog's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
        
            SimpleDialog.superclass.initDefaultConfig.call(this);
        
            // Add dialog config properties //
        
            /**
            * Sets the informational icon for the SimpleDialog
            * @config icon
            * @type String
            * @default "none"
            */
            this.cfg.addProperty(DEFAULT_CONFIG.ICON.key, {
                handler: this.configIcon,
                value: DEFAULT_CONFIG.ICON.value,
                suppressEvent: DEFAULT_CONFIG.ICON.suppressEvent
            });
        
            /**
            * Sets the text for the SimpleDialog
            * @config text
            * @type String
            * @default ""
            */
            this.cfg.addProperty(DEFAULT_CONFIG.TEXT.key, { 
                handler: this.configText, 
                value: DEFAULT_CONFIG.TEXT.value, 
                suppressEvent: DEFAULT_CONFIG.TEXT.suppressEvent, 
                supercedes: DEFAULT_CONFIG.TEXT.supercedes 
            });
        
        },
        
        
        /**
        * The SimpleDialog initialization method, which is executed for 
        * SimpleDialog and all of its subclasses. This method is automatically 
        * called by the constructor, and  sets up all DOM references for 
        * pre-existing markup, and creates required markup if it is not 
        * already present.
        * @method init
        * @param {String} el The element ID representing the SimpleDialog 
        * <em>OR</em>
        * @param {HTMLElement} el The element representing the SimpleDialog
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this 
        * SimpleDialog. See configuration documentation for more details.
        */
        init: function (el, userConfig) {

            /*
                Note that we don't pass the user config in here yet because we 
                only want it executed once, at the lowest subclass level
            */

            SimpleDialog.superclass.init.call(this, el/*, userConfig*/);
        
            this.beforeInitEvent.fire(SimpleDialog);
        
            Dom.addClass(this.element, SimpleDialog.CSS_SIMPLEDIALOG);
        
            this.cfg.queueProperty("postmethod", "manual");
        
            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }
        
            this.beforeRenderEvent.subscribe(function () {
                if (! this.body) {
                    this.setBody("");
                }
            }, this, true);
        
            this.initEvent.fire(SimpleDialog);
        
        },
        
        /**
        * Prepares the SimpleDialog's internal FORM object, creating one if one 
        * is not currently present, and adding the value hidden field.
        * @method registerForm
        */
        registerForm: function () {

            SimpleDialog.superclass.registerForm.call(this);

            this.form.innerHTML += "<input type=\"hidden\" name=\"" + 
                this.id + "\" value=\"\"/>";

        },
        
        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * Fired when the "icon" property is set.
        * @method configIcon
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configIcon: function (type,args,obj) {
        
            var sIcon = args[0],
                oBody = this.body,
                sCSSClass = SimpleDialog.ICON_CSS_CLASSNAME,
                oIcon,
                oIconParent;
        
            if (sIcon && sIcon != "none") {

                oIcon = Dom.getElementsByClassName(sCSSClass, "*" , oBody);

                if (oIcon) {

                    oIconParent = oIcon.parentNode;
                    
                    if (oIconParent) {
                    
                        oIconParent.removeChild(oIcon);
                        
                        oIcon = null;
                    
                    }

                }


                if (sIcon.indexOf(".") == -1) {

                    oIcon = document.createElement("span");
                    oIcon.className = (sCSSClass + " " + sIcon);
                    oIcon.innerHTML = "&#160;";

                } else {

                    oIcon = document.createElement("img");
                    oIcon.src = (this.imageRoot + sIcon);
                    oIcon.className = sCSSClass;

                }
                

                if (oIcon) {
                
                    oBody.insertBefore(oIcon, oBody.firstChild);
                
                }

            }

        },

        /**
        * Fired when the "text" property is set.
        * @method configText
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configText: function (type,args,obj) {
            var text = args[0];
            if (text) {
                this.setBody(text);
                this.cfg.refireEvent("icon");
            }
        },
        
        // END BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the SimpleDialog
        */
        toString: function () {
            return "SimpleDialog " + this.id;
        }

        /**
        * <p>
        * Sets the SimpleDialog's body content to the HTML specified. 
        * If no body is present, one will be automatically created. 
        * An empty string can be passed to the method to clear the contents of the body.
        * </p>
        * <p><strong>NOTE:</strong> SimpleDialog provides the <a href="#config_text">text</a>
        * and <a href="#config_icon">icon</a> configuration properties to set the contents
        * of it's body element in accordance with the UI design for a SimpleDialog (an 
        * icon and message text). Calling setBody on the SimpleDialog will not enforce this 
        * UI design constraint and will replace the entire contents of the SimpleDialog body. 
        * It should only be used if you wish the replace the default icon/text body structure 
        * of a SimpleDialog with your own custom markup.</p>
        * 
        * @method setBody
        * @param {String} bodyContent The HTML used to set the body. 
        * As a convenience, non HTMLElement objects can also be passed into 
        * the method, and will be treated as strings, with the body innerHTML
        * set to their default toString implementations.
        * <em>OR</em>
        * @param {HTMLElement} bodyContent The HTMLElement to add as the first and only child of the body element.
        * <em>OR</em>
        * @param {DocumentFragment} bodyContent The document fragment 
        * containing elements which are to be added to the body
        */
    });

}());

(function () {

    /**
    * ContainerEffect encapsulates animation transitions that are executed when 
    * an Overlay is shown or hidden.
    * @namespace YAHOO.widget
    * @class ContainerEffect
    * @constructor
    * @param {YAHOO.widget.Overlay} overlay The Overlay that the animation 
    * should be associated with
    * @param {Object} attrIn The object literal representing the animation 
    * arguments to be used for the animate-in transition. The arguments for 
    * this literal are: attributes(object, see YAHOO.util.Anim for description), 
    * duration(Number), and method(i.e. Easing.easeIn).
    * @param {Object} attrOut The object literal representing the animation 
    * arguments to be used for the animate-out transition. The arguments for  
    * this literal are: attributes(object, see YAHOO.util.Anim for description), 
    * duration(Number), and method(i.e. Easing.easeIn).
    * @param {HTMLElement} targetElement Optional. The target element that  
    * should be animated during the transition. Defaults to overlay.element.
    * @param {class} Optional. The animation class to instantiate. Defaults to 
    * YAHOO.util.Anim. Other options include YAHOO.util.Motion.
    */
    YAHOO.widget.ContainerEffect = function (overlay, attrIn, attrOut, targetElement, animClass) {

        if (!animClass) {
            animClass = YAHOO.util.Anim;
        }

        /**
        * The overlay to animate
        * @property overlay
        * @type YAHOO.widget.Overlay
        */
        this.overlay = overlay;
    
        /**
        * The animation attributes to use when transitioning into view
        * @property attrIn
        * @type Object
        */
        this.attrIn = attrIn;
    
        /**
        * The animation attributes to use when transitioning out of view
        * @property attrOut
        * @type Object
        */
        this.attrOut = attrOut;
    
        /**
        * The target element to be animated
        * @property targetElement
        * @type HTMLElement
        */
        this.targetElement = targetElement || overlay.element;
    
        /**
        * The animation class to use for animating the overlay
        * @property animClass
        * @type class
        */
        this.animClass = animClass;
    
    };


    var Dom = YAHOO.util.Dom,
        CustomEvent = YAHOO.util.CustomEvent,
        ContainerEffect = YAHOO.widget.ContainerEffect;


    /**
    * A pre-configured ContainerEffect instance that can be used for fading 
    * an overlay in and out.
    * @method FADE
    * @static
    * @param {YAHOO.widget.Overlay} overlay The Overlay object to animate
    * @param {Number} dur The duration of the animation
    * @return {YAHOO.widget.ContainerEffect} The configured ContainerEffect object
    */
    ContainerEffect.FADE = function (overlay, dur) {

        var Easing = YAHOO.util.Easing,
            fin = {
                attributes: {opacity:{from:0, to:1}},
                duration: dur,
                method: Easing.easeIn
            },
            fout = {
                attributes: {opacity:{to:0}},
                duration: dur,
                method: Easing.easeOut
            },
            fade = new ContainerEffect(overlay, fin, fout, overlay.element);

        fade.handleUnderlayStart = function() {
            var underlay = this.overlay.underlay;
            if (underlay && YAHOO.env.ua.ie) {
                var hasFilters = (underlay.filters && underlay.filters.length > 0);
                if(hasFilters) {
                    Dom.addClass(overlay.element, "yui-effect-fade");
                }
            }
        };

        fade.handleUnderlayComplete = function() {
            var underlay = this.overlay.underlay;
            if (underlay && YAHOO.env.ua.ie) {
                Dom.removeClass(overlay.element, "yui-effect-fade");
            }
        };

        fade.handleStartAnimateIn = function (type, args, obj) {
            Dom.addClass(obj.overlay.element, "hide-select");

            if (!obj.overlay.underlay) {
                obj.overlay.cfg.refireEvent("underlay");
            }

            obj.handleUnderlayStart();

            obj.overlay._setDomVisibility(true);
            Dom.setStyle(obj.overlay.element, "opacity", 0);
        };

        fade.handleCompleteAnimateIn = function (type,args,obj) {
            Dom.removeClass(obj.overlay.element, "hide-select");

            if (obj.overlay.element.style.filter) {
                obj.overlay.element.style.filter = null;
            }

            obj.handleUnderlayComplete();

            obj.overlay.cfg.refireEvent("iframe");
            obj.animateInCompleteEvent.fire();
        };

        fade.handleStartAnimateOut = function (type, args, obj) {
            Dom.addClass(obj.overlay.element, "hide-select");
            obj.handleUnderlayStart();
        };

        fade.handleCompleteAnimateOut =  function (type, args, obj) {
            Dom.removeClass(obj.overlay.element, "hide-select");
            if (obj.overlay.element.style.filter) {
                obj.overlay.element.style.filter = null;
            }
            obj.overlay._setDomVisibility(false);
            Dom.setStyle(obj.overlay.element, "opacity", 1);

            obj.handleUnderlayComplete();

            obj.overlay.cfg.refireEvent("iframe");
            obj.animateOutCompleteEvent.fire();
        };

        fade.init();
        return fade;
    };
    
    
    /**
    * A pre-configured ContainerEffect instance that can be used for sliding an 
    * overlay in and out.
    * @method SLIDE
    * @static
    * @param {YAHOO.widget.Overlay} overlay The Overlay object to animate
    * @param {Number} dur The duration of the animation
    * @return {YAHOO.widget.ContainerEffect} The configured ContainerEffect object
    */
    ContainerEffect.SLIDE = function (overlay, dur) {
        var Easing = YAHOO.util.Easing,

            x = overlay.cfg.getProperty("x") || Dom.getX(overlay.element),
            y = overlay.cfg.getProperty("y") || Dom.getY(overlay.element),
            clientWidth = Dom.getClientWidth(),
            offsetWidth = overlay.element.offsetWidth,

            sin =  { 
                attributes: { points: { to: [x, y] } },
                duration: dur,
                method: Easing.easeIn 
            },

            sout = {
                attributes: { points: { to: [(clientWidth + 25), y] } },
                duration: dur,
                method: Easing.easeOut 
            },

            slide = new ContainerEffect(overlay, sin, sout, overlay.element, YAHOO.util.Motion);

        slide.handleStartAnimateIn = function (type,args,obj) {
            obj.overlay.element.style.left = ((-25) - offsetWidth) + "px";
            obj.overlay.element.style.top  = y + "px";
        };

        slide.handleTweenAnimateIn = function (type, args, obj) {
        
            var pos = Dom.getXY(obj.overlay.element),
                currentX = pos[0],
                currentY = pos[1];
        
            if (Dom.getStyle(obj.overlay.element, "visibility") == 
                "hidden" && currentX < x) {

                obj.overlay._setDomVisibility(true);

            }
        
            obj.overlay.cfg.setProperty("xy", [currentX, currentY], true);
            obj.overlay.cfg.refireEvent("iframe");
        };
        
        slide.handleCompleteAnimateIn = function (type, args, obj) {
            obj.overlay.cfg.setProperty("xy", [x, y], true);
            obj.startX = x;
            obj.startY = y;
            obj.overlay.cfg.refireEvent("iframe");
            obj.animateInCompleteEvent.fire();
        };
        
        slide.handleStartAnimateOut = function (type, args, obj) {
    
            var vw = Dom.getViewportWidth(),
                pos = Dom.getXY(obj.overlay.element),
                yso = pos[1];
    
            obj.animOut.attributes.points.to = [(vw + 25), yso];
        };
        
        slide.handleTweenAnimateOut = function (type, args, obj) {
    
            var pos = Dom.getXY(obj.overlay.element),
                xto = pos[0],
                yto = pos[1];
        
            obj.overlay.cfg.setProperty("xy", [xto, yto], true);
            obj.overlay.cfg.refireEvent("iframe");
        };
        
        slide.handleCompleteAnimateOut = function (type, args, obj) {
            obj.overlay._setDomVisibility(false);

            obj.overlay.cfg.setProperty("xy", [x, y]);
            obj.animateOutCompleteEvent.fire();
        };

        slide.init();
        return slide;
    };

    ContainerEffect.prototype = {

        /**
        * Initializes the animation classes and events.
        * @method init
        */
        init: function () {

            this.beforeAnimateInEvent = this.createEvent("beforeAnimateIn");
            this.beforeAnimateInEvent.signature = CustomEvent.LIST;
            
            this.beforeAnimateOutEvent = this.createEvent("beforeAnimateOut");
            this.beforeAnimateOutEvent.signature = CustomEvent.LIST;
        
            this.animateInCompleteEvent = this.createEvent("animateInComplete");
            this.animateInCompleteEvent.signature = CustomEvent.LIST;
        
            this.animateOutCompleteEvent = 
                this.createEvent("animateOutComplete");
            this.animateOutCompleteEvent.signature = CustomEvent.LIST;
        
            this.animIn = new this.animClass(this.targetElement, 
                this.attrIn.attributes, this.attrIn.duration, 
                this.attrIn.method);

            this.animIn.onStart.subscribe(this.handleStartAnimateIn, this);
            this.animIn.onTween.subscribe(this.handleTweenAnimateIn, this);

            this.animIn.onComplete.subscribe(this.handleCompleteAnimateIn, 
                this);
        
            this.animOut = new this.animClass(this.targetElement, 
                this.attrOut.attributes, this.attrOut.duration, 
                this.attrOut.method);

            this.animOut.onStart.subscribe(this.handleStartAnimateOut, this);
            this.animOut.onTween.subscribe(this.handleTweenAnimateOut, this);
            this.animOut.onComplete.subscribe(this.handleCompleteAnimateOut, 
                this);

        },
        
        /**
        * Triggers the in-animation.
        * @method animateIn
        */
        animateIn: function () {
            this.beforeAnimateInEvent.fire();
            this.animIn.animate();
        },

        /**
        * Triggers the out-animation.
        * @method animateOut
        */
        animateOut: function () {
            this.beforeAnimateOutEvent.fire();
            this.animOut.animate();
        },

        /**
        * The default onStart handler for the in-animation.
        * @method handleStartAnimateIn
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleStartAnimateIn: function (type, args, obj) { },

        /**
        * The default onTween handler for the in-animation.
        * @method handleTweenAnimateIn
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleTweenAnimateIn: function (type, args, obj) { },

        /**
        * The default onComplete handler for the in-animation.
        * @method handleCompleteAnimateIn
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleCompleteAnimateIn: function (type, args, obj) { },

        /**
        * The default onStart handler for the out-animation.
        * @method handleStartAnimateOut
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleStartAnimateOut: function (type, args, obj) { },

        /**
        * The default onTween handler for the out-animation.
        * @method handleTweenAnimateOut
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleTweenAnimateOut: function (type, args, obj) { },

        /**
        * The default onComplete handler for the out-animation.
        * @method handleCompleteAnimateOut
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleCompleteAnimateOut: function (type, args, obj) { },
        
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the ContainerEffect
        */
        toString: function () {
            var output = "ContainerEffect";
            if (this.overlay) {
                output += " [" + this.overlay.toString() + "]";
            }
            return output;
        }
    };

    YAHOO.lang.augmentProto(ContainerEffect, YAHOO.util.EventProvider);

})();

YAHOO.register("container", YAHOO.widget.Module, {version: "2.7.0", build: "1796"});
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
/**
 * The drag and drop utility provides a framework for building drag and drop
 * applications.  In addition to enabling drag and drop for specific elements,
 * the drag and drop elements are tracked by the manager class, and the
 * interactions between the various elements are tracked during the drag and
 * the implementing code is notified about these important moments.
 * @module dragdrop
 * @title Drag and Drop
 * @requires yahoo,dom,event
 * @namespace YAHOO.util
 */

// Only load the library once.  Rewriting the manager class would orphan 
// existing drag and drop instances.
if (!YAHOO.util.DragDropMgr) {

/**
 * DragDropMgr is a singleton that tracks the element interaction for 
 * all DragDrop items in the window.  Generally, you will not call 
 * this class directly, but it does have helper methods that could 
 * be useful in your DragDrop implementations.
 * @class DragDropMgr
 * @static
 */
YAHOO.util.DragDropMgr = function() {

    var Event = YAHOO.util.Event,
        Dom = YAHOO.util.Dom;

    return {
        /**
        * This property is used to turn on global use of the shim element on all DragDrop instances, defaults to false for backcompat. (Use: YAHOO.util.DDM.useShim = true)
        * @property useShim
        * @type Boolean
        * @static
        */
        useShim: false,
        /**
        * This property is used to determine if the shim is active over the screen, default false.
        * @private
        * @property _shimActive
        * @type Boolean
        * @static
        */
        _shimActive: false,
        /**
        * This property is used when useShim is set on a DragDrop object to store the current state of DDM.useShim so it can be reset when a drag operation is done.
        * @private
        * @property _shimState
        * @type Boolean
        * @static
        */
        _shimState: false,
        /**
        * This property is used when useShim is set to true, it will set the opacity on the shim to .5 for debugging. Use: (YAHOO.util.DDM._debugShim = true;)
        * @private
        * @property _debugShim
        * @type Boolean
        * @static
        */
        _debugShim: false,
        /**
        * This method will create a shim element (giving it the id of yui-ddm-shim), it also attaches the mousemove and mouseup listeners to it and attaches a scroll listener on the window
        * @private
        * @method _sizeShim
        * @static
        */
        _createShim: function() {
            var s = document.createElement('div');
            s.id = 'yui-ddm-shim';
            if (document.body.firstChild) {
                document.body.insertBefore(s, document.body.firstChild);
            } else {
                document.body.appendChild(s);
            }
            s.style.display = 'none';
            s.style.backgroundColor = 'red';
            s.style.position = 'absolute';
            s.style.zIndex = '99999';
            Dom.setStyle(s, 'opacity', '0');
            this._shim = s;
            Event.on(s, "mouseup",   this.handleMouseUp, this, true);
            Event.on(s, "mousemove", this.handleMouseMove, this, true);
            Event.on(window, 'scroll', this._sizeShim, this, true);
        },
        /**
        * This method will size the shim, called from activate and on window scroll event
        * @private
        * @method _sizeShim
        * @static
        */
        _sizeShim: function() {
            if (this._shimActive) {
                var s = this._shim;
                s.style.height = Dom.getDocumentHeight() + 'px';
                s.style.width = Dom.getDocumentWidth() + 'px';
                s.style.top = '0';
                s.style.left = '0';
            }
        },
        /**
        * This method will create the shim element if needed, then show the shim element, size the element and set the _shimActive property to true
        * @private
        * @method _activateShim
        * @static
        */
        _activateShim: function() {
            if (this.useShim) {
                if (!this._shim) {
                    this._createShim();
                }
                this._shimActive = true;
                var s = this._shim,
                    o = '0';
                if (this._debugShim) {
                    o = '.5';
                }
                Dom.setStyle(s, 'opacity', o);
                this._sizeShim();
                s.style.display = 'block';
            }
        },
        /**
        * This method will hide the shim element and set the _shimActive property to false
        * @private
        * @method _deactivateShim
        * @static
        */
        _deactivateShim: function() {
            this._shim.style.display = 'none';
            this._shimActive = false;
        },
        /**
        * The HTML element created to use as a shim over the document to track mouse movements
        * @private
        * @property _shim
        * @type HTMLElement
        * @static
        */
        _shim: null,
        /**
         * Two dimensional Array of registered DragDrop objects.  The first 
         * dimension is the DragDrop item group, the second the DragDrop 
         * object.
         * @property ids
         * @type {string: string}
         * @private
         * @static
         */
        ids: {},

        /**
         * Array of element ids defined as drag handles.  Used to determine 
         * if the element that generated the mousedown event is actually the 
         * handle and not the html element itself.
         * @property handleIds
         * @type {string: string}
         * @private
         * @static
         */
        handleIds: {},

        /**
         * the DragDrop object that is currently being dragged
         * @property dragCurrent
         * @type DragDrop
         * @private
         * @static
         **/
        dragCurrent: null,

        /**
         * the DragDrop object(s) that are being hovered over
         * @property dragOvers
         * @type Array
         * @private
         * @static
         */
        dragOvers: {},

        /**
         * the X distance between the cursor and the object being dragged
         * @property deltaX
         * @type int
         * @private
         * @static
         */
        deltaX: 0,

        /**
         * the Y distance between the cursor and the object being dragged
         * @property deltaY
         * @type int
         * @private
         * @static
         */
        deltaY: 0,

        /**
         * Flag to determine if we should prevent the default behavior of the
         * events we define. By default this is true, but this can be set to 
         * false if you need the default behavior (not recommended)
         * @property preventDefault
         * @type boolean
         * @static
         */
        preventDefault: true,

        /**
         * Flag to determine if we should stop the propagation of the events 
         * we generate. This is true by default but you may want to set it to
         * false if the html element contains other features that require the
         * mouse click.
         * @property stopPropagation
         * @type boolean
         * @static
         */
        stopPropagation: true,

        /**
         * Internal flag that is set to true when drag and drop has been
         * initialized
         * @property initialized
         * @private
         * @static
         */
        initialized: false,

        /**
         * All drag and drop can be disabled.
         * @property locked
         * @private
         * @static
         */
        locked: false,

        /**
         * Provides additional information about the the current set of
         * interactions.  Can be accessed from the event handlers. It
         * contains the following properties:
         *
         *       out:       onDragOut interactions
         *       enter:     onDragEnter interactions
         *       over:      onDragOver interactions
         *       drop:      onDragDrop interactions
         *       point:     The location of the cursor
         *       draggedRegion: The location of dragged element at the time
         *                      of the interaction
         *       sourceRegion: The location of the source elemtn at the time
         *                     of the interaction
         *       validDrop: boolean
         * @property interactionInfo
         * @type object
         * @static
         */
        interactionInfo: null,

        /**
         * Called the first time an element is registered.
         * @method init
         * @private
         * @static
         */
        init: function() {
            this.initialized = true;
        },

        /**
         * In point mode, drag and drop interaction is defined by the 
         * location of the cursor during the drag/drop
         * @property POINT
         * @type int
         * @static
         * @final
         */
        POINT: 0,

        /**
         * In intersect mode, drag and drop interaction is defined by the 
         * cursor position or the amount of overlap of two or more drag and 
         * drop objects.
         * @property INTERSECT
         * @type int
         * @static
         * @final
         */
        INTERSECT: 1,

        /**
         * In intersect mode, drag and drop interaction is defined only by the 
         * overlap of two or more drag and drop objects.
         * @property STRICT_INTERSECT
         * @type int
         * @static
         * @final
         */
        STRICT_INTERSECT: 2,

        /**
         * The current drag and drop mode.  Default: POINT
         * @property mode
         * @type int
         * @static
         */
        mode: 0,

        /**
         * Runs method on all drag and drop objects
         * @method _execOnAll
         * @private
         * @static
         */
        _execOnAll: function(sMethod, args) {
            for (var i in this.ids) {
                for (var j in this.ids[i]) {
                    var oDD = this.ids[i][j];
                    if (! this.isTypeOfDD(oDD)) {
                        continue;
                    }
                    oDD[sMethod].apply(oDD, args);
                }
            }
        },

        /**
         * Drag and drop initialization.  Sets up the global event handlers
         * @method _onLoad
         * @private
         * @static
         */
        _onLoad: function() {

            this.init();

            Event.on(document, "mouseup",   this.handleMouseUp, this, true);
            Event.on(document, "mousemove", this.handleMouseMove, this, true);
            Event.on(window,   "unload",    this._onUnload, this, true);
            Event.on(window,   "resize",    this._onResize, this, true);
            // Event.on(window,   "mouseout",    this._test);

        },

        /**
         * Reset constraints on all drag and drop objs
         * @method _onResize
         * @private
         * @static
         */
        _onResize: function(e) {
            this._execOnAll("resetConstraints", []);
        },

        /**
         * Lock all drag and drop functionality
         * @method lock
         * @static
         */
        lock: function() { this.locked = true; },

        /**
         * Unlock all drag and drop functionality
         * @method unlock
         * @static
         */
        unlock: function() { this.locked = false; },

        /**
         * Is drag and drop locked?
         * @method isLocked
         * @return {boolean} True if drag and drop is locked, false otherwise.
         * @static
         */
        isLocked: function() { return this.locked; },

        /**
         * Location cache that is set for all drag drop objects when a drag is
         * initiated, cleared when the drag is finished.
         * @property locationCache
         * @private
         * @static
         */
        locationCache: {},

        /**
         * Set useCache to false if you want to force object the lookup of each
         * drag and drop linked element constantly during a drag.
         * @property useCache
         * @type boolean
         * @static
         */
        useCache: true,

        /**
         * The number of pixels that the mouse needs to move after the 
         * mousedown before the drag is initiated.  Default=3;
         * @property clickPixelThresh
         * @type int
         * @static
         */
        clickPixelThresh: 3,

        /**
         * The number of milliseconds after the mousedown event to initiate the
         * drag if we don't get a mouseup event. Default=1000
         * @property clickTimeThresh
         * @type int
         * @static
         */
        clickTimeThresh: 1000,

        /**
         * Flag that indicates that either the drag pixel threshold or the 
         * mousdown time threshold has been met
         * @property dragThreshMet
         * @type boolean
         * @private
         * @static
         */
        dragThreshMet: false,

        /**
         * Timeout used for the click time threshold
         * @property clickTimeout
         * @type Object
         * @private
         * @static
         */
        clickTimeout: null,

        /**
         * The X position of the mousedown event stored for later use when a 
         * drag threshold is met.
         * @property startX
         * @type int
         * @private
         * @static
         */
        startX: 0,

        /**
         * The Y position of the mousedown event stored for later use when a 
         * drag threshold is met.
         * @property startY
         * @type int
         * @private
         * @static
         */
        startY: 0,

        /**
         * Flag to determine if the drag event was fired from the click timeout and
         * not the mouse move threshold.
         * @property fromTimeout
         * @type boolean
         * @private
         * @static
         */
        fromTimeout: false,

        /**
         * Each DragDrop instance must be registered with the DragDropMgr.  
         * This is executed in DragDrop.init()
         * @method regDragDrop
         * @param {DragDrop} oDD the DragDrop object to register
         * @param {String} sGroup the name of the group this element belongs to
         * @static
         */
        regDragDrop: function(oDD, sGroup) {
            if (!this.initialized) { this.init(); }
            
            if (!this.ids[sGroup]) {
                this.ids[sGroup] = {};
            }
            this.ids[sGroup][oDD.id] = oDD;
        },

        /**
         * Removes the supplied dd instance from the supplied group. Executed
         * by DragDrop.removeFromGroup, so don't call this function directly.
         * @method removeDDFromGroup
         * @private
         * @static
         */
        removeDDFromGroup: function(oDD, sGroup) {
            if (!this.ids[sGroup]) {
                this.ids[sGroup] = {};
            }

            var obj = this.ids[sGroup];
            if (obj && obj[oDD.id]) {
                delete obj[oDD.id];
            }
        },

        /**
         * Unregisters a drag and drop item.  This is executed in 
         * DragDrop.unreg, use that method instead of calling this directly.
         * @method _remove
         * @private
         * @static
         */
        _remove: function(oDD) {
            for (var g in oDD.groups) {
                if (g) {
                    var item = this.ids[g];
                    if (item && item[oDD.id]) {
                        delete item[oDD.id];
                    }
                }
                
            }
            delete this.handleIds[oDD.id];
        },

        /**
         * Each DragDrop handle element must be registered.  This is done
         * automatically when executing DragDrop.setHandleElId()
         * @method regHandle
         * @param {String} sDDId the DragDrop id this element is a handle for
         * @param {String} sHandleId the id of the element that is the drag 
         * handle
         * @static
         */
        regHandle: function(sDDId, sHandleId) {
            if (!this.handleIds[sDDId]) {
                this.handleIds[sDDId] = {};
            }
            this.handleIds[sDDId][sHandleId] = sHandleId;
        },

        /**
         * Utility function to determine if a given element has been 
         * registered as a drag drop item.
         * @method isDragDrop
         * @param {String} id the element id to check
         * @return {boolean} true if this element is a DragDrop item, 
         * false otherwise
         * @static
         */
        isDragDrop: function(id) {
            return ( this.getDDById(id) ) ? true : false;
        },

        /**
         * Returns the drag and drop instances that are in all groups the
         * passed in instance belongs to.
         * @method getRelated
         * @param {DragDrop} p_oDD the obj to get related data for
         * @param {boolean} bTargetsOnly if true, only return targetable objs
         * @return {DragDrop[]} the related instances
         * @static
         */
        getRelated: function(p_oDD, bTargetsOnly) {
            var oDDs = [];
            for (var i in p_oDD.groups) {
                for (var j in this.ids[i]) {
                    var dd = this.ids[i][j];
                    if (! this.isTypeOfDD(dd)) {
                        continue;
                    }
                    if (!bTargetsOnly || dd.isTarget) {
                        oDDs[oDDs.length] = dd;
                    }
                }
            }

            return oDDs;
        },

        /**
         * Returns true if the specified dd target is a legal target for 
         * the specifice drag obj
         * @method isLegalTarget
         * @param {DragDrop} the drag obj
         * @param {DragDrop} the target
         * @return {boolean} true if the target is a legal target for the 
         * dd obj
         * @static
         */
        isLegalTarget: function (oDD, oTargetDD) {
            var targets = this.getRelated(oDD, true);
            for (var i=0, len=targets.length;i<len;++i) {
                if (targets[i].id == oTargetDD.id) {
                    return true;
                }
            }

            return false;
        },

        /**
         * My goal is to be able to transparently determine if an object is
         * typeof DragDrop, and the exact subclass of DragDrop.  typeof 
         * returns "object", oDD.constructor.toString() always returns
         * "DragDrop" and not the name of the subclass.  So for now it just
         * evaluates a well-known variable in DragDrop.
         * @method isTypeOfDD
         * @param {Object} the object to evaluate
         * @return {boolean} true if typeof oDD = DragDrop
         * @static
         */
        isTypeOfDD: function (oDD) {
            return (oDD && oDD.__ygDragDrop);
        },

        /**
         * Utility function to determine if a given element has been 
         * registered as a drag drop handle for the given Drag Drop object.
         * @method isHandle
         * @param {String} id the element id to check
         * @return {boolean} true if this element is a DragDrop handle, false 
         * otherwise
         * @static
         */
        isHandle: function(sDDId, sHandleId) {
            return ( this.handleIds[sDDId] && 
                            this.handleIds[sDDId][sHandleId] );
        },

        /**
         * Returns the DragDrop instance for a given id
         * @method getDDById
         * @param {String} id the id of the DragDrop object
         * @return {DragDrop} the drag drop object, null if it is not found
         * @static
         */
        getDDById: function(id) {
            for (var i in this.ids) {
                if (this.ids[i][id]) {
                    return this.ids[i][id];
                }
            }
            return null;
        },

        /**
         * Fired after a registered DragDrop object gets the mousedown event.
         * Sets up the events required to track the object being dragged
         * @method handleMouseDown
         * @param {Event} e the event
         * @param oDD the DragDrop object being dragged
         * @private
         * @static
         */
        handleMouseDown: function(e, oDD) {
            //this._activateShim();

            this.currentTarget = YAHOO.util.Event.getTarget(e);

            this.dragCurrent = oDD;

            var el = oDD.getEl();

            // track start position
            this.startX = YAHOO.util.Event.getPageX(e);
            this.startY = YAHOO.util.Event.getPageY(e);

            this.deltaX = this.startX - el.offsetLeft;
            this.deltaY = this.startY - el.offsetTop;

            this.dragThreshMet = false;

            this.clickTimeout = setTimeout( 
                    function() { 
                        var DDM = YAHOO.util.DDM;
                        DDM.startDrag(DDM.startX, DDM.startY);
                        DDM.fromTimeout = true;
                    }, 
                    this.clickTimeThresh );
        },

        /**
         * Fired when either the drag pixel threshold or the mousedown hold 
         * time threshold has been met.
         * @method startDrag
         * @param x {int} the X position of the original mousedown
         * @param y {int} the Y position of the original mousedown
         * @static
         */
        startDrag: function(x, y) {
            if (this.dragCurrent && this.dragCurrent.useShim) {
                this._shimState = this.useShim;
                this.useShim = true;
            }
            this._activateShim();
            clearTimeout(this.clickTimeout);
            var dc = this.dragCurrent;
            if (dc && dc.events.b4StartDrag) {
                dc.b4StartDrag(x, y);
                dc.fireEvent('b4StartDragEvent', { x: x, y: y });
            }
            if (dc && dc.events.startDrag) {
                dc.startDrag(x, y);
                dc.fireEvent('startDragEvent', { x: x, y: y });
            }
            this.dragThreshMet = true;
        },

        /**
         * Internal function to handle the mouseup event.  Will be invoked 
         * from the context of the document.
         * @method handleMouseUp
         * @param {Event} e the event
         * @private
         * @static
         */
        handleMouseUp: function(e) {
            if (this.dragCurrent) {
                clearTimeout(this.clickTimeout);

                if (this.dragThreshMet) {
                    if (this.fromTimeout) {
                        this.fromTimeout = false;
                        this.handleMouseMove(e);
                    }
                    this.fromTimeout = false;
                    this.fireEvents(e, true);
                } else {
                }

                this.stopDrag(e);

                this.stopEvent(e);
            }
        },

        /**
         * Utility to stop event propagation and event default, if these 
         * features are turned on.
         * @method stopEvent
         * @param {Event} e the event as returned by this.getEvent()
         * @static
         */
        stopEvent: function(e) {
            if (this.stopPropagation) {
                YAHOO.util.Event.stopPropagation(e);
            }

            if (this.preventDefault) {
                YAHOO.util.Event.preventDefault(e);
            }
        },

        /** 
         * Ends the current drag, cleans up the state, and fires the endDrag
         * and mouseUp events.  Called internally when a mouseup is detected
         * during the drag.  Can be fired manually during the drag by passing
         * either another event (such as the mousemove event received in onDrag)
         * or a fake event with pageX and pageY defined (so that endDrag and
         * onMouseUp have usable position data.).  Alternatively, pass true
         * for the silent parameter so that the endDrag and onMouseUp events
         * are skipped (so no event data is needed.)
         *
         * @method stopDrag
         * @param {Event} e the mouseup event, another event (or a fake event) 
         *                  with pageX and pageY defined, or nothing if the 
         *                  silent parameter is true
         * @param {boolean} silent skips the enddrag and mouseup events if true
         * @static
         */
        stopDrag: function(e, silent) {
            var dc = this.dragCurrent;
            // Fire the drag end event for the item that was dragged
            if (dc && !silent) {
                if (this.dragThreshMet) {
                    if (dc.events.b4EndDrag) {
                        dc.b4EndDrag(e);
                        dc.fireEvent('b4EndDragEvent', { e: e });
                    }
                    if (dc.events.endDrag) {
                        dc.endDrag(e);
                        dc.fireEvent('endDragEvent', { e: e });
                    }
                }
                if (dc.events.mouseUp) {
                    dc.onMouseUp(e);
                    dc.fireEvent('mouseUpEvent', { e: e });
                }
            }

            if (this._shimActive) {
                this._deactivateShim();
                if (this.dragCurrent && this.dragCurrent.useShim) {
                    this.useShim = this._shimState;
                    this._shimState = false;
                }
            }

            this.dragCurrent = null;
            this.dragOvers = {};
        },

        /** 
         * Internal function to handle the mousemove event.  Will be invoked 
         * from the context of the html element.
         *
         * @TODO figure out what we can do about mouse events lost when the 
         * user drags objects beyond the window boundary.  Currently we can 
         * detect this in internet explorer by verifying that the mouse is 
         * down during the mousemove event.  Firefox doesn't give us the 
         * button state on the mousemove event.
         * @method handleMouseMove
         * @param {Event} e the event
         * @private
         * @static
         */
        handleMouseMove: function(e) {

            var dc = this.dragCurrent;
            if (dc) {

                // var button = e.which || e.button;

                // check for IE mouseup outside of page boundary
                if (YAHOO.util.Event.isIE && !e.button) {
                    this.stopEvent(e);
                    return this.handleMouseUp(e);
                } else {
                    if (e.clientX < 0 || e.clientY < 0) {
                        //This will stop the element from leaving the viewport in FF, Opera & Safari
                        //Not turned on yet
                        //this.stopEvent(e);
                        //return false;
                    }
                }

                if (!this.dragThreshMet) {
                    var diffX = Math.abs(this.startX - YAHOO.util.Event.getPageX(e));
                    var diffY = Math.abs(this.startY - YAHOO.util.Event.getPageY(e));
                    if (diffX > this.clickPixelThresh || 
                                diffY > this.clickPixelThresh) {
                        this.startDrag(this.startX, this.startY);
                    }
                }

                if (this.dragThreshMet) {
                    if (dc && dc.events.b4Drag) {
                        dc.b4Drag(e);
                        dc.fireEvent('b4DragEvent', { e: e});
                    }
                    if (dc && dc.events.drag) {
                        dc.onDrag(e);
                        dc.fireEvent('dragEvent', { e: e});
                    }
                    if (dc) {
                        this.fireEvents(e, false);
                    }
                }

                this.stopEvent(e);
            }
        },
        
        /**
         * Iterates over all of the DragDrop elements to find ones we are 
         * hovering over or dropping on
         * @method fireEvents
         * @param {Event} e the event
         * @param {boolean} isDrop is this a drop op or a mouseover op?
         * @private
         * @static
         */
        fireEvents: function(e, isDrop) {
            var dc = this.dragCurrent;

            // If the user did the mouse up outside of the window, we could 
            // get here even though we have ended the drag.
            // If the config option dragOnly is true, bail out and don't fire the events
            if (!dc || dc.isLocked() || dc.dragOnly) {
                return;
            }

            var x = YAHOO.util.Event.getPageX(e),
                y = YAHOO.util.Event.getPageY(e),
                pt = new YAHOO.util.Point(x,y),
                pos = dc.getTargetCoord(pt.x, pt.y),
                el = dc.getDragEl(),
                events = ['out', 'over', 'drop', 'enter'],
                curRegion = new YAHOO.util.Region( pos.y, 
                                               pos.x + el.offsetWidth,
                                               pos.y + el.offsetHeight, 
                                               pos.x ),
            
                oldOvers = [], // cache the previous dragOver array
                inGroupsObj  = {},
                inGroups  = [],
                data = {
                    outEvts: [],
                    overEvts: [],
                    dropEvts: [],
                    enterEvts: []
                };


            // Check to see if the object(s) we were hovering over is no longer 
            // being hovered over so we can fire the onDragOut event
            for (var i in this.dragOvers) {

                var ddo = this.dragOvers[i];

                if (! this.isTypeOfDD(ddo)) {
                    continue;
                }
                if (! this.isOverTarget(pt, ddo, this.mode, curRegion)) {
                    data.outEvts.push( ddo );
                }

                oldOvers[i] = true;
                delete this.dragOvers[i];
            }

            for (var sGroup in dc.groups) {
                
                if ("string" != typeof sGroup) {
                    continue;
                }

                for (i in this.ids[sGroup]) {
                    var oDD = this.ids[sGroup][i];
                    if (! this.isTypeOfDD(oDD)) {
                        continue;
                    }

                    if (oDD.isTarget && !oDD.isLocked() && oDD != dc) {
                        if (this.isOverTarget(pt, oDD, this.mode, curRegion)) {
                            inGroupsObj[sGroup] = true;
                            // look for drop interactions
                            if (isDrop) {
                                data.dropEvts.push( oDD );
                            // look for drag enter and drag over interactions
                            } else {

                                // initial drag over: dragEnter fires
                                if (!oldOvers[oDD.id]) {
                                    data.enterEvts.push( oDD );
                                // subsequent drag overs: dragOver fires
                                } else {
                                    data.overEvts.push( oDD );
                                }

                                this.dragOvers[oDD.id] = oDD;
                            }
                        }
                    }
                }
            }

            this.interactionInfo = {
                out:       data.outEvts,
                enter:     data.enterEvts,
                over:      data.overEvts,
                drop:      data.dropEvts,
                point:     pt,
                draggedRegion:    curRegion,
                sourceRegion: this.locationCache[dc.id],
                validDrop: isDrop
            };

            
            for (var inG in inGroupsObj) {
                inGroups.push(inG);
            }

            // notify about a drop that did not find a target
            if (isDrop && !data.dropEvts.length) {
                this.interactionInfo.validDrop = false;
                if (dc.events.invalidDrop) {
                    dc.onInvalidDrop(e);
                    dc.fireEvent('invalidDropEvent', { e: e });
                }
            }
            for (i = 0; i < events.length; i++) {
                var tmp = null;
                if (data[events[i] + 'Evts']) {
                    tmp = data[events[i] + 'Evts'];
                }
                if (tmp && tmp.length) {
                    var type = events[i].charAt(0).toUpperCase() + events[i].substr(1),
                        ev = 'onDrag' + type,
                        b4 = 'b4Drag' + type,
                        cev = 'drag' + type + 'Event',
                        check = 'drag' + type;
                    if (this.mode) {
                        if (dc.events[b4]) {
                            dc[b4](e, tmp, inGroups);
                            dc.fireEvent(b4 + 'Event', { event: e, info: tmp, group: inGroups });
                            
                        }
                        if (dc.events[check]) {
                            dc[ev](e, tmp, inGroups);
                            dc.fireEvent(cev, { event: e, info: tmp, group: inGroups });
                        }
                    } else {
                        for (var b = 0, len = tmp.length; b < len; ++b) {
                            if (dc.events[b4]) {
                                dc[b4](e, tmp[b].id, inGroups[0]);
                                dc.fireEvent(b4 + 'Event', { event: e, info: tmp[b].id, group: inGroups[0] });
                            }
                            if (dc.events[check]) {
                                dc[ev](e, tmp[b].id, inGroups[0]);
                                dc.fireEvent(cev, { event: e, info: tmp[b].id, group: inGroups[0] });
                            }
                        }
                    }
                }
            }
        },

        /**
         * Helper function for getting the best match from the list of drag 
         * and drop objects returned by the drag and drop events when we are 
         * in INTERSECT mode.  It returns either the first object that the 
         * cursor is over, or the object that has the greatest overlap with 
         * the dragged element.
         * @method getBestMatch
         * @param  {DragDrop[]} dds The array of drag and drop objects 
         * targeted
         * @return {DragDrop}       The best single match
         * @static
         */
        getBestMatch: function(dds) {
            var winner = null;

            var len = dds.length;

            if (len == 1) {
                winner = dds[0];
            } else {
                // Loop through the targeted items
                for (var i=0; i<len; ++i) {
                    var dd = dds[i];
                    // If the cursor is over the object, it wins.  If the 
                    // cursor is over multiple matches, the first one we come
                    // to wins.
                    if (this.mode == this.INTERSECT && dd.cursorIsOver) {
                        winner = dd;
                        break;
                    // Otherwise the object with the most overlap wins
                    } else {
                        if (!winner || !winner.overlap || (dd.overlap &&
                            winner.overlap.getArea() < dd.overlap.getArea())) {
                            winner = dd;
                        }
                    }
                }
            }

            return winner;
        },

        /**
         * Refreshes the cache of the top-left and bottom-right points of the 
         * drag and drop objects in the specified group(s).  This is in the
         * format that is stored in the drag and drop instance, so typical 
         * usage is:
         * <code>
         * YAHOO.util.DragDropMgr.refreshCache(ddinstance.groups);
         * </code>
         * Alternatively:
         * <code>
         * YAHOO.util.DragDropMgr.refreshCache({group1:true, group2:true});
         * </code>
         * @TODO this really should be an indexed array.  Alternatively this
         * method could accept both.
         * @method refreshCache
         * @param {Object} groups an associative array of groups to refresh
         * @static
         */
        refreshCache: function(groups) {

            // refresh everything if group array is not provided
            var g = groups || this.ids;

            for (var sGroup in g) {
                if ("string" != typeof sGroup) {
                    continue;
                }
                for (var i in this.ids[sGroup]) {
                    var oDD = this.ids[sGroup][i];

                    if (this.isTypeOfDD(oDD)) {
                        var loc = this.getLocation(oDD);
                        if (loc) {
                            this.locationCache[oDD.id] = loc;
                        } else {
                            delete this.locationCache[oDD.id];
                        }
                    }
                }
            }
        },

        /**
         * This checks to make sure an element exists and is in the DOM.  The
         * main purpose is to handle cases where innerHTML is used to remove
         * drag and drop objects from the DOM.  IE provides an 'unspecified
         * error' when trying to access the offsetParent of such an element
         * @method verifyEl
         * @param {HTMLElement} el the element to check
         * @return {boolean} true if the element looks usable
         * @static
         */
        verifyEl: function(el) {
            try {
                if (el) {
                    var parent = el.offsetParent;
                    if (parent) {
                        return true;
                    }
                }
            } catch(e) {
            }

            return false;
        },
        
        /**
         * Returns a Region object containing the drag and drop element's position
         * and size, including the padding configured for it
         * @method getLocation
         * @param {DragDrop} oDD the drag and drop object to get the 
         *                       location for
         * @return {YAHOO.util.Region} a Region object representing the total area
         *                             the element occupies, including any padding
         *                             the instance is configured for.
         * @static
         */
        getLocation: function(oDD) {
            if (! this.isTypeOfDD(oDD)) {
                return null;
            }

            var el = oDD.getEl(), pos, x1, x2, y1, y2, t, r, b, l;

            try {
                pos= YAHOO.util.Dom.getXY(el);
            } catch (e) { }

            if (!pos) {
                return null;
            }

            x1 = pos[0];
            x2 = x1 + el.offsetWidth;
            y1 = pos[1];
            y2 = y1 + el.offsetHeight;

            t = y1 - oDD.padding[0];
            r = x2 + oDD.padding[1];
            b = y2 + oDD.padding[2];
            l = x1 - oDD.padding[3];

            return new YAHOO.util.Region( t, r, b, l );
        },

        /**
         * Checks the cursor location to see if it over the target
         * @method isOverTarget
         * @param {YAHOO.util.Point} pt The point to evaluate
         * @param {DragDrop} oTarget the DragDrop object we are inspecting
         * @param {boolean} intersect true if we are in intersect mode
         * @param {YAHOO.util.Region} pre-cached location of the dragged element
         * @return {boolean} true if the mouse is over the target
         * @private
         * @static
         */
        isOverTarget: function(pt, oTarget, intersect, curRegion) {
            // use cache if available
            var loc = this.locationCache[oTarget.id];
            if (!loc || !this.useCache) {
                loc = this.getLocation(oTarget);
                this.locationCache[oTarget.id] = loc;

            }

            if (!loc) {
                return false;
            }

            oTarget.cursorIsOver = loc.contains( pt );

            // DragDrop is using this as a sanity check for the initial mousedown
            // in this case we are done.  In POINT mode, if the drag obj has no
            // contraints, we are done. Otherwise we need to evaluate the 
            // region the target as occupies to determine if the dragged element
            // overlaps with it.
            
            var dc = this.dragCurrent;
            if (!dc || (!intersect && !dc.constrainX && !dc.constrainY)) {

                //if (oTarget.cursorIsOver) {
                //}
                return oTarget.cursorIsOver;
            }

            oTarget.overlap = null;


            // Get the current location of the drag element, this is the
            // location of the mouse event less the delta that represents
            // where the original mousedown happened on the element.  We
            // need to consider constraints and ticks as well.

            if (!curRegion) {
                var pos = dc.getTargetCoord(pt.x, pt.y);
                var el = dc.getDragEl();
                curRegion = new YAHOO.util.Region( pos.y, 
                                                   pos.x + el.offsetWidth,
                                                   pos.y + el.offsetHeight, 
                                                   pos.x );
            }

            var overlap = curRegion.intersect(loc);

            if (overlap) {
                oTarget.overlap = overlap;
                return (intersect) ? true : oTarget.cursorIsOver;
            } else {
                return false;
            }
        },

        /**
         * unload event handler
         * @method _onUnload
         * @private
         * @static
         */
        _onUnload: function(e, me) {
            this.unregAll();
        },

        /**
         * Cleans up the drag and drop events and objects.
         * @method unregAll
         * @private
         * @static
         */
        unregAll: function() {

            if (this.dragCurrent) {
                this.stopDrag();
                this.dragCurrent = null;
            }

            this._execOnAll("unreg", []);

            //for (var i in this.elementCache) {
                //delete this.elementCache[i];
            //}
            //this.elementCache = {};

            this.ids = {};
        },

        /**
         * A cache of DOM elements
         * @property elementCache
         * @private
         * @static
         * @deprecated elements are not cached now
         */
        elementCache: {},
        
        /**
         * Get the wrapper for the DOM element specified
         * @method getElWrapper
         * @param {String} id the id of the element to get
         * @return {YAHOO.util.DDM.ElementWrapper} the wrapped element
         * @private
         * @deprecated This wrapper isn't that useful
         * @static
         */
        getElWrapper: function(id) {
            var oWrapper = this.elementCache[id];
            if (!oWrapper || !oWrapper.el) {
                oWrapper = this.elementCache[id] = 
                    new this.ElementWrapper(YAHOO.util.Dom.get(id));
            }
            return oWrapper;
        },

        /**
         * Returns the actual DOM element
         * @method getElement
         * @param {String} id the id of the elment to get
         * @return {Object} The element
         * @deprecated use YAHOO.util.Dom.get instead
         * @static
         */
        getElement: function(id) {
            return YAHOO.util.Dom.get(id);
        },
        
        /**
         * Returns the style property for the DOM element (i.e., 
         * document.getElById(id).style)
         * @method getCss
         * @param {String} id the id of the elment to get
         * @return {Object} The style property of the element
         * @deprecated use YAHOO.util.Dom instead
         * @static
         */
        getCss: function(id) {
            var el = YAHOO.util.Dom.get(id);
            return (el) ? el.style : null;
        },

        /**
         * Inner class for cached elements
         * @class DragDropMgr.ElementWrapper
         * @for DragDropMgr
         * @private
         * @deprecated
         */
        ElementWrapper: function(el) {
                /**
                 * The element
                 * @property el
                 */
                this.el = el || null;
                /**
                 * The element id
                 * @property id
                 */
                this.id = this.el && el.id;
                /**
                 * A reference to the style property
                 * @property css
                 */
                this.css = this.el && el.style;
            },

        /**
         * Returns the X position of an html element
         * @method getPosX
         * @param el the element for which to get the position
         * @return {int} the X coordinate
         * @for DragDropMgr
         * @deprecated use YAHOO.util.Dom.getX instead
         * @static
         */
        getPosX: function(el) {
            return YAHOO.util.Dom.getX(el);
        },

        /**
         * Returns the Y position of an html element
         * @method getPosY
         * @param el the element for which to get the position
         * @return {int} the Y coordinate
         * @deprecated use YAHOO.util.Dom.getY instead
         * @static
         */
        getPosY: function(el) {
            return YAHOO.util.Dom.getY(el); 
        },

        /**
         * Swap two nodes.  In IE, we use the native method, for others we 
         * emulate the IE behavior
         * @method swapNode
         * @param n1 the first node to swap
         * @param n2 the other node to swap
         * @static
         */
        swapNode: function(n1, n2) {
            if (n1.swapNode) {
                n1.swapNode(n2);
            } else {
                var p = n2.parentNode;
                var s = n2.nextSibling;

                if (s == n1) {
                    p.insertBefore(n1, n2);
                } else if (n2 == n1.nextSibling) {
                    p.insertBefore(n2, n1);
                } else {
                    n1.parentNode.replaceChild(n2, n1);
                    p.insertBefore(n1, s);
                }
            }
        },

        /**
         * Returns the current scroll position
         * @method getScroll
         * @private
         * @static
         */
        getScroll: function () {
            var t, l, dde=document.documentElement, db=document.body;
            if (dde && (dde.scrollTop || dde.scrollLeft)) {
                t = dde.scrollTop;
                l = dde.scrollLeft;
            } else if (db) {
                t = db.scrollTop;
                l = db.scrollLeft;
            } else {
            }
            return { top: t, left: l };
        },

        /**
         * Returns the specified element style property
         * @method getStyle
         * @param {HTMLElement} el          the element
         * @param {string}      styleProp   the style property
         * @return {string} The value of the style property
         * @deprecated use YAHOO.util.Dom.getStyle
         * @static
         */
        getStyle: function(el, styleProp) {
            return YAHOO.util.Dom.getStyle(el, styleProp);
        },

        /**
         * Gets the scrollTop
         * @method getScrollTop
         * @return {int} the document's scrollTop
         * @static
         */
        getScrollTop: function () { return this.getScroll().top; },

        /**
         * Gets the scrollLeft
         * @method getScrollLeft
         * @return {int} the document's scrollTop
         * @static
         */
        getScrollLeft: function () { return this.getScroll().left; },

        /**
         * Sets the x/y position of an element to the location of the
         * target element.
         * @method moveToEl
         * @param {HTMLElement} moveEl      The element to move
         * @param {HTMLElement} targetEl    The position reference element
         * @static
         */
        moveToEl: function (moveEl, targetEl) {
            var aCoord = YAHOO.util.Dom.getXY(targetEl);
            YAHOO.util.Dom.setXY(moveEl, aCoord);
        },

        /**
         * Gets the client height
         * @method getClientHeight
         * @return {int} client height in px
         * @deprecated use YAHOO.util.Dom.getViewportHeight instead
         * @static
         */
        getClientHeight: function() {
            return YAHOO.util.Dom.getViewportHeight();
        },

        /**
         * Gets the client width
         * @method getClientWidth
         * @return {int} client width in px
         * @deprecated use YAHOO.util.Dom.getViewportWidth instead
         * @static
         */
        getClientWidth: function() {
            return YAHOO.util.Dom.getViewportWidth();
        },

        /**
         * Numeric array sort function
         * @method numericSort
         * @static
         */
        numericSort: function(a, b) { return (a - b); },

        /**
         * Internal counter
         * @property _timeoutCount
         * @private
         * @static
         */
        _timeoutCount: 0,

        /**
         * Trying to make the load order less important.  Without this we get
         * an error if this file is loaded before the Event Utility.
         * @method _addListeners
         * @private
         * @static
         */
        _addListeners: function() {
            var DDM = YAHOO.util.DDM;
            if ( YAHOO.util.Event && document ) {
                DDM._onLoad();
            } else {
                if (DDM._timeoutCount > 2000) {
                } else {
                    setTimeout(DDM._addListeners, 10);
                    if (document && document.body) {
                        DDM._timeoutCount += 1;
                    }
                }
            }
        },

        /**
         * Recursively searches the immediate parent and all child nodes for 
         * the handle element in order to determine wheter or not it was 
         * clicked.
         * @method handleWasClicked
         * @param node the html element to inspect
         * @static
         */
        handleWasClicked: function(node, id) {
            if (this.isHandle(id, node.id)) {
                return true;
            } else {
                // check to see if this is a text node child of the one we want
                var p = node.parentNode;

                while (p) {
                    if (this.isHandle(id, p.id)) {
                        return true;
                    } else {
                        p = p.parentNode;
                    }
                }
            }

            return false;
        }

    };

}();

// shorter alias, save a few bytes
YAHOO.util.DDM = YAHOO.util.DragDropMgr;
YAHOO.util.DDM._addListeners();

}

(function() {

var Event=YAHOO.util.Event; 
var Dom=YAHOO.util.Dom;

/**
 * Defines the interface and base operation of items that that can be 
 * dragged or can be drop targets.  It was designed to be extended, overriding
 * the event handlers for startDrag, onDrag, onDragOver, onDragOut.
 * Up to three html elements can be associated with a DragDrop instance:
 * <ul>
 * <li>linked element: the element that is passed into the constructor.
 * This is the element which defines the boundaries for interaction with 
 * other DragDrop objects.</li>
 * <li>handle element(s): The drag operation only occurs if the element that 
 * was clicked matches a handle element.  By default this is the linked 
 * element, but there are times that you will want only a portion of the 
 * linked element to initiate the drag operation, and the setHandleElId() 
 * method provides a way to define this.</li>
 * <li>drag element: this represents an the element that would be moved along
 * with the cursor during a drag operation.  By default, this is the linked
 * element itself as in {@link YAHOO.util.DD}.  setDragElId() lets you define
 * a separate element that would be moved, as in {@link YAHOO.util.DDProxy}
 * </li>
 * </ul>
 * This class should not be instantiated until the onload event to ensure that
 * the associated elements are available.
 * The following would define a DragDrop obj that would interact with any 
 * other DragDrop obj in the "group1" group:
 * <pre>
 *  dd = new YAHOO.util.DragDrop("div1", "group1");
 * </pre>
 * Since none of the event handlers have been implemented, nothing would 
 * actually happen if you were to run the code above.  Normally you would 
 * override this class or one of the default implementations, but you can 
 * also override the methods you want on an instance of the class...
 * <pre>
 *  dd.onDragDrop = function(e, id) {
 *  &nbsp;&nbsp;alert("dd was dropped on " + id);
 *  }
 * </pre>
 * @namespace YAHOO.util
 * @class DragDrop
 * @constructor
 * @param {String} id of the element that is linked to this instance
 * @param {String} sGroup the group of related DragDrop objects
 * @param {object} config an object containing configurable attributes
 *                Valid properties for DragDrop: 
 *                    padding, isTarget, maintainOffset, primaryButtonOnly,
 */
YAHOO.util.DragDrop = function(id, sGroup, config) {
    if (id) {
        this.init(id, sGroup, config); 
    }
};

YAHOO.util.DragDrop.prototype = {
    /**
     * An Object Literal containing the events that we will be using: mouseDown, b4MouseDown, mouseUp, b4StartDrag, startDrag, b4EndDrag, endDrag, mouseUp, drag, b4Drag, invalidDrop, b4DragOut, dragOut, dragEnter, b4DragOver, dragOver, b4DragDrop, dragDrop
     * By setting any of these to false, then event will not be fired.
     * @property events
     * @type object
     */
    events: null,
    /**
    * @method on
    * @description Shortcut for EventProvider.subscribe, see <a href="YAHOO.util.EventProvider.html#subscribe">YAHOO.util.EventProvider.subscribe</a>
    */
    on: function() {
        this.subscribe.apply(this, arguments);
    },
    /**
     * The id of the element associated with this object.  This is what we 
     * refer to as the "linked element" because the size and position of 
     * this element is used to determine when the drag and drop objects have 
     * interacted.
     * @property id
     * @type String
     */
    id: null,

    /**
     * Configuration attributes passed into the constructor
     * @property config
     * @type object
     */
    config: null,

    /**
     * The id of the element that will be dragged.  By default this is same 
     * as the linked element , but could be changed to another element. Ex: 
     * YAHOO.util.DDProxy
     * @property dragElId
     * @type String
     * @private
     */
    dragElId: null, 

    /**
     * the id of the element that initiates the drag operation.  By default 
     * this is the linked element, but could be changed to be a child of this
     * element.  This lets us do things like only starting the drag when the 
     * header element within the linked html element is clicked.
     * @property handleElId
     * @type String
     * @private
     */
    handleElId: null, 

    /**
     * An associative array of HTML tags that will be ignored if clicked.
     * @property invalidHandleTypes
     * @type {string: string}
     */
    invalidHandleTypes: null, 

    /**
     * An associative array of ids for elements that will be ignored if clicked
     * @property invalidHandleIds
     * @type {string: string}
     */
    invalidHandleIds: null, 

    /**
     * An indexted array of css class names for elements that will be ignored
     * if clicked.
     * @property invalidHandleClasses
     * @type string[]
     */
    invalidHandleClasses: null, 

    /**
     * The linked element's absolute X position at the time the drag was 
     * started
     * @property startPageX
     * @type int
     * @private
     */
    startPageX: 0,

    /**
     * The linked element's absolute X position at the time the drag was 
     * started
     * @property startPageY
     * @type int
     * @private
     */
    startPageY: 0,

    /**
     * The group defines a logical collection of DragDrop objects that are 
     * related.  Instances only get events when interacting with other 
     * DragDrop object in the same group.  This lets us define multiple 
     * groups using a single DragDrop subclass if we want.
     * @property groups
     * @type {string: string}
     */
    groups: null,

    /**
     * Individual drag/drop instances can be locked.  This will prevent 
     * onmousedown start drag.
     * @property locked
     * @type boolean
     * @private
     */
    locked: false,

    /**
     * Lock this instance
     * @method lock
     */
    lock: function() { this.locked = true; },

    /**
     * Unlock this instace
     * @method unlock
     */
    unlock: function() { this.locked = false; },

    /**
     * By default, all instances can be a drop target.  This can be disabled by
     * setting isTarget to false.
     * @property isTarget
     * @type boolean
     */
    isTarget: true,

    /**
     * The padding configured for this drag and drop object for calculating
     * the drop zone intersection with this object.
     * @property padding
     * @type int[]
     */
    padding: null,
    /**
     * If this flag is true, do not fire drop events. The element is a drag only element (for movement not dropping)
     * @property dragOnly
     * @type Boolean
     */
    dragOnly: false,

    /**
     * If this flag is true, a shim will be placed over the screen/viewable area to track mouse events. Should help with dragging elements over iframes and other controls.
     * @property useShim
     * @type Boolean
     */
    useShim: false,

    /**
     * Cached reference to the linked element
     * @property _domRef
     * @private
     */
    _domRef: null,

    /**
     * Internal typeof flag
     * @property __ygDragDrop
     * @private
     */
    __ygDragDrop: true,

    /**
     * Set to true when horizontal contraints are applied
     * @property constrainX
     * @type boolean
     * @private
     */
    constrainX: false,

    /**
     * Set to true when vertical contraints are applied
     * @property constrainY
     * @type boolean
     * @private
     */
    constrainY: false,

    /**
     * The left constraint
     * @property minX
     * @type int
     * @private
     */
    minX: 0,

    /**
     * The right constraint
     * @property maxX
     * @type int
     * @private
     */
    maxX: 0,

    /**
     * The up constraint 
     * @property minY
     * @type int
     * @type int
     * @private
     */
    minY: 0,

    /**
     * The down constraint 
     * @property maxY
     * @type int
     * @private
     */
    maxY: 0,

    /**
     * The difference between the click position and the source element's location
     * @property deltaX
     * @type int
     * @private
     */
    deltaX: 0,

    /**
     * The difference between the click position and the source element's location
     * @property deltaY
     * @type int
     * @private
     */
    deltaY: 0,

    /**
     * Maintain offsets when we resetconstraints.  Set to true when you want
     * the position of the element relative to its parent to stay the same
     * when the page changes
     *
     * @property maintainOffset
     * @type boolean
     */
    maintainOffset: false,

    /**
     * Array of pixel locations the element will snap to if we specified a 
     * horizontal graduation/interval.  This array is generated automatically
     * when you define a tick interval.
     * @property xTicks
     * @type int[]
     */
    xTicks: null,

    /**
     * Array of pixel locations the element will snap to if we specified a 
     * vertical graduation/interval.  This array is generated automatically 
     * when you define a tick interval.
     * @property yTicks
     * @type int[]
     */
    yTicks: null,

    /**
     * By default the drag and drop instance will only respond to the primary
     * button click (left button for a right-handed mouse).  Set to true to
     * allow drag and drop to start with any mouse click that is propogated
     * by the browser
     * @property primaryButtonOnly
     * @type boolean
     */
    primaryButtonOnly: true,

    /**
     * The availabe property is false until the linked dom element is accessible.
     * @property available
     * @type boolean
     */
    available: false,

    /**
     * By default, drags can only be initiated if the mousedown occurs in the
     * region the linked element is.  This is done in part to work around a
     * bug in some browsers that mis-report the mousedown if the previous
     * mouseup happened outside of the window.  This property is set to true
     * if outer handles are defined.
     *
     * @property hasOuterHandles
     * @type boolean
     * @default false
     */
    hasOuterHandles: false,

    /**
     * Property that is assigned to a drag and drop object when testing to
     * see if it is being targeted by another dd object.  This property
     * can be used in intersect mode to help determine the focus of
     * the mouse interaction.  DDM.getBestMatch uses this property first to
     * determine the closest match in INTERSECT mode when multiple targets
     * are part of the same interaction.
     * @property cursorIsOver
     * @type boolean
     */
    cursorIsOver: false,

    /**
     * Property that is assigned to a drag and drop object when testing to
     * see if it is being targeted by another dd object.  This is a region
     * that represents the area the draggable element overlaps this target.
     * DDM.getBestMatch uses this property to compare the size of the overlap
     * to that of other targets in order to determine the closest match in
     * INTERSECT mode when multiple targets are part of the same interaction.
     * @property overlap 
     * @type YAHOO.util.Region
     */
    overlap: null,

    /**
     * Code that executes immediately before the startDrag event
     * @method b4StartDrag
     * @private
     */
    b4StartDrag: function(x, y) { },

    /**
     * Abstract method called after a drag/drop object is clicked
     * and the drag or mousedown time thresholds have beeen met.
     * @method startDrag
     * @param {int} X click location
     * @param {int} Y click location
     */
    startDrag: function(x, y) { /* override this */ },

    /**
     * Code that executes immediately before the onDrag event
     * @method b4Drag
     * @private
     */
    b4Drag: function(e) { },

    /**
     * Abstract method called during the onMouseMove event while dragging an 
     * object.
     * @method onDrag
     * @param {Event} e the mousemove event
     */
    onDrag: function(e) { /* override this */ },

    /**
     * Abstract method called when this element fist begins hovering over 
     * another DragDrop obj
     * @method onDragEnter
     * @param {Event} e the mousemove event
     * @param {String|DragDrop[]} id In POINT mode, the element
     * id this is hovering over.  In INTERSECT mode, an array of one or more 
     * dragdrop items being hovered over.
     */
    onDragEnter: function(e, id) { /* override this */ },

    /**
     * Code that executes immediately before the onDragOver event
     * @method b4DragOver
     * @private
     */
    b4DragOver: function(e) { },

    /**
     * Abstract method called when this element is hovering over another 
     * DragDrop obj
     * @method onDragOver
     * @param {Event} e the mousemove event
     * @param {String|DragDrop[]} id In POINT mode, the element
     * id this is hovering over.  In INTERSECT mode, an array of dd items 
     * being hovered over.
     */
    onDragOver: function(e, id) { /* override this */ },

    /**
     * Code that executes immediately before the onDragOut event
     * @method b4DragOut
     * @private
     */
    b4DragOut: function(e) { },

    /**
     * Abstract method called when we are no longer hovering over an element
     * @method onDragOut
     * @param {Event} e the mousemove event
     * @param {String|DragDrop[]} id In POINT mode, the element
     * id this was hovering over.  In INTERSECT mode, an array of dd items 
     * that the mouse is no longer over.
     */
    onDragOut: function(e, id) { /* override this */ },

    /**
     * Code that executes immediately before the onDragDrop event
     * @method b4DragDrop
     * @private
     */
    b4DragDrop: function(e) { },

    /**
     * Abstract method called when this item is dropped on another DragDrop 
     * obj
     * @method onDragDrop
     * @param {Event} e the mouseup event
     * @param {String|DragDrop[]} id In POINT mode, the element
     * id this was dropped on.  In INTERSECT mode, an array of dd items this 
     * was dropped on.
     */
    onDragDrop: function(e, id) { /* override this */ },

    /**
     * Abstract method called when this item is dropped on an area with no
     * drop target
     * @method onInvalidDrop
     * @param {Event} e the mouseup event
     */
    onInvalidDrop: function(e) { /* override this */ },

    /**
     * Code that executes immediately before the endDrag event
     * @method b4EndDrag
     * @private
     */
    b4EndDrag: function(e) { },

    /**
     * Fired when we are done dragging the object
     * @method endDrag
     * @param {Event} e the mouseup event
     */
    endDrag: function(e) { /* override this */ },

    /**
     * Code executed immediately before the onMouseDown event
     * @method b4MouseDown
     * @param {Event} e the mousedown event
     * @private
     */
    b4MouseDown: function(e) {  },

    /**
     * Event handler that fires when a drag/drop obj gets a mousedown
     * @method onMouseDown
     * @param {Event} e the mousedown event
     */
    onMouseDown: function(e) { /* override this */ },

    /**
     * Event handler that fires when a drag/drop obj gets a mouseup
     * @method onMouseUp
     * @param {Event} e the mouseup event
     */
    onMouseUp: function(e) { /* override this */ },
   
    /**
     * Override the onAvailable method to do what is needed after the initial
     * position was determined.
     * @method onAvailable
     */
    onAvailable: function () { 
    },

    /**
     * Returns a reference to the linked element
     * @method getEl
     * @return {HTMLElement} the html element 
     */
    getEl: function() { 
        if (!this._domRef) {
            this._domRef = Dom.get(this.id); 
        }

        return this._domRef;
    },

    /**
     * Returns a reference to the actual element to drag.  By default this is
     * the same as the html element, but it can be assigned to another 
     * element. An example of this can be found in YAHOO.util.DDProxy
     * @method getDragEl
     * @return {HTMLElement} the html element 
     */
    getDragEl: function() {
        return Dom.get(this.dragElId);
    },

    /**
     * Sets up the DragDrop object.  Must be called in the constructor of any
     * YAHOO.util.DragDrop subclass
     * @method init
     * @param id the id of the linked element
     * @param {String} sGroup the group of related items
     * @param {object} config configuration attributes
     */
    init: function(id, sGroup, config) {
        this.initTarget(id, sGroup, config);
        Event.on(this._domRef || this.id, "mousedown", 
                        this.handleMouseDown, this, true);

        // Event.on(this.id, "selectstart", Event.preventDefault);
        for (var i in this.events) {
            this.createEvent(i + 'Event');
        }
        
    },

    /**
     * Initializes Targeting functionality only... the object does not
     * get a mousedown handler.
     * @method initTarget
     * @param id the id of the linked element
     * @param {String} sGroup the group of related items
     * @param {object} config configuration attributes
     */
    initTarget: function(id, sGroup, config) {

        // configuration attributes 
        this.config = config || {};

        this.events = {};

        // create a local reference to the drag and drop manager
        this.DDM = YAHOO.util.DDM;

        // initialize the groups object
        this.groups = {};

        // assume that we have an element reference instead of an id if the
        // parameter is not a string
        if (typeof id !== "string") {
            this._domRef = id;
            id = Dom.generateId(id);
        }

        // set the id
        this.id = id;

        // add to an interaction group
        this.addToGroup((sGroup) ? sGroup : "default");

        // We don't want to register this as the handle with the manager
        // so we just set the id rather than calling the setter.
        this.handleElId = id;

        Event.onAvailable(id, this.handleOnAvailable, this, true);


        // the linked element is the element that gets dragged by default
        this.setDragElId(id); 

        // by default, clicked anchors will not start drag operations. 
        // @TODO what else should be here?  Probably form fields.
        this.invalidHandleTypes = { A: "A" };
        this.invalidHandleIds = {};
        this.invalidHandleClasses = [];

        this.applyConfig();
    },

    /**
     * Applies the configuration parameters that were passed into the constructor.
     * This is supposed to happen at each level through the inheritance chain.  So
     * a DDProxy implentation will execute apply config on DDProxy, DD, and 
     * DragDrop in order to get all of the parameters that are available in
     * each object.
     * @method applyConfig
     */
    applyConfig: function() {
        this.events = {
            mouseDown: true,
            b4MouseDown: true,
            mouseUp: true,
            b4StartDrag: true,
            startDrag: true,
            b4EndDrag: true,
            endDrag: true,
            drag: true,
            b4Drag: true,
            invalidDrop: true,
            b4DragOut: true,
            dragOut: true,
            dragEnter: true,
            b4DragOver: true,
            dragOver: true,
            b4DragDrop: true,
            dragDrop: true
        };
        
        if (this.config.events) {
            for (var i in this.config.events) {
                if (this.config.events[i] === false) {
                    this.events[i] = false;
                }
            }
        }


        // configurable properties: 
        //    padding, isTarget, maintainOffset, primaryButtonOnly
        this.padding           = this.config.padding || [0, 0, 0, 0];
        this.isTarget          = (this.config.isTarget !== false);
        this.maintainOffset    = (this.config.maintainOffset);
        this.primaryButtonOnly = (this.config.primaryButtonOnly !== false);
        this.dragOnly = ((this.config.dragOnly === true) ? true : false);
        this.useShim = ((this.config.useShim === true) ? true : false);
    },

    /**
     * Executed when the linked element is available
     * @method handleOnAvailable
     * @private
     */
    handleOnAvailable: function() {
        this.available = true;
        this.resetConstraints();
        this.onAvailable();
    },

     /**
     * Configures the padding for the target zone in px.  Effectively expands
     * (or reduces) the virtual object size for targeting calculations.  
     * Supports css-style shorthand; if only one parameter is passed, all sides
     * will have that padding, and if only two are passed, the top and bottom
     * will have the first param, the left and right the second.
     * @method setPadding
     * @param {int} iTop    Top pad
     * @param {int} iRight  Right pad
     * @param {int} iBot    Bot pad
     * @param {int} iLeft   Left pad
     */
    setPadding: function(iTop, iRight, iBot, iLeft) {
        // this.padding = [iLeft, iRight, iTop, iBot];
        if (!iRight && 0 !== iRight) {
            this.padding = [iTop, iTop, iTop, iTop];
        } else if (!iBot && 0 !== iBot) {
            this.padding = [iTop, iRight, iTop, iRight];
        } else {
            this.padding = [iTop, iRight, iBot, iLeft];
        }
    },

    /**
     * Stores the initial placement of the linked element.
     * @method setInitialPosition
     * @param {int} diffX   the X offset, default 0
     * @param {int} diffY   the Y offset, default 0
     * @private
     */
    setInitPosition: function(diffX, diffY) {
        var el = this.getEl();

        if (!this.DDM.verifyEl(el)) {
            if (el && el.style && (el.style.display == 'none')) {
            } else {
            }
            return;
        }

        var dx = diffX || 0;
        var dy = diffY || 0;

        var p = Dom.getXY( el );

        this.initPageX = p[0] - dx;
        this.initPageY = p[1] - dy;

        this.lastPageX = p[0];
        this.lastPageY = p[1];



        this.setStartPosition(p);
    },

    /**
     * Sets the start position of the element.  This is set when the obj
     * is initialized, the reset when a drag is started.
     * @method setStartPosition
     * @param pos current position (from previous lookup)
     * @private
     */
    setStartPosition: function(pos) {
        var p = pos || Dom.getXY(this.getEl());

        this.deltaSetXY = null;

        this.startPageX = p[0];
        this.startPageY = p[1];
    },

    /**
     * Add this instance to a group of related drag/drop objects.  All 
     * instances belong to at least one group, and can belong to as many 
     * groups as needed.
     * @method addToGroup
     * @param sGroup {string} the name of the group
     */
    addToGroup: function(sGroup) {
        this.groups[sGroup] = true;
        this.DDM.regDragDrop(this, sGroup);
    },

    /**
     * Remove's this instance from the supplied interaction group
     * @method removeFromGroup
     * @param {string}  sGroup  The group to drop
     */
    removeFromGroup: function(sGroup) {
        if (this.groups[sGroup]) {
            delete this.groups[sGroup];
        }

        this.DDM.removeDDFromGroup(this, sGroup);
    },

    /**
     * Allows you to specify that an element other than the linked element 
     * will be moved with the cursor during a drag
     * @method setDragElId
     * @param id {string} the id of the element that will be used to initiate the drag
     */
    setDragElId: function(id) {
        this.dragElId = id;
    },

    /**
     * Allows you to specify a child of the linked element that should be 
     * used to initiate the drag operation.  An example of this would be if 
     * you have a content div with text and links.  Clicking anywhere in the 
     * content area would normally start the drag operation.  Use this method
     * to specify that an element inside of the content div is the element 
     * that starts the drag operation.
     * @method setHandleElId
     * @param id {string} the id of the element that will be used to 
     * initiate the drag.
     */
    setHandleElId: function(id) {
        if (typeof id !== "string") {
            id = Dom.generateId(id);
        }
        this.handleElId = id;
        this.DDM.regHandle(this.id, id);
    },

    /**
     * Allows you to set an element outside of the linked element as a drag 
     * handle
     * @method setOuterHandleElId
     * @param id the id of the element that will be used to initiate the drag
     */
    setOuterHandleElId: function(id) {
        if (typeof id !== "string") {
            id = Dom.generateId(id);
        }
        Event.on(id, "mousedown", 
                this.handleMouseDown, this, true);
        this.setHandleElId(id);

        this.hasOuterHandles = true;
    },

    /**
     * Remove all drag and drop hooks for this element
     * @method unreg
     */
    unreg: function() {
        Event.removeListener(this.id, "mousedown", 
                this.handleMouseDown);
        this._domRef = null;
        this.DDM._remove(this);
    },

    /**
     * Returns true if this instance is locked, or the drag drop mgr is locked
     * (meaning that all drag/drop is disabled on the page.)
     * @method isLocked
     * @return {boolean} true if this obj or all drag/drop is locked, else 
     * false
     */
    isLocked: function() {
        return (this.DDM.isLocked() || this.locked);
    },

    /**
     * Fired when this object is clicked
     * @method handleMouseDown
     * @param {Event} e 
     * @param {YAHOO.util.DragDrop} oDD the clicked dd object (this dd obj)
     * @private
     */
    handleMouseDown: function(e, oDD) {

        var button = e.which || e.button;

        if (this.primaryButtonOnly && button > 1) {
            return;
        }

        if (this.isLocked()) {
            return;
        }



        // firing the mousedown events prior to calculating positions
        var b4Return = this.b4MouseDown(e),
        b4Return2 = true;

        if (this.events.b4MouseDown) {
            b4Return2 = this.fireEvent('b4MouseDownEvent', e);
        }
        var mDownReturn = this.onMouseDown(e),
            mDownReturn2 = true;
        if (this.events.mouseDown) {
            mDownReturn2 = this.fireEvent('mouseDownEvent', e);
        }

        if ((b4Return === false) || (mDownReturn === false) || (b4Return2 === false) || (mDownReturn2 === false)) {
            return;
        }

        this.DDM.refreshCache(this.groups);
        // var self = this;
        // setTimeout( function() { self.DDM.refreshCache(self.groups); }, 0);

        // Only process the event if we really clicked within the linked 
        // element.  The reason we make this check is that in the case that 
        // another element was moved between the clicked element and the 
        // cursor in the time between the mousedown and mouseup events. When 
        // this happens, the element gets the next mousedown event 
        // regardless of where on the screen it happened.  
        var pt = new YAHOO.util.Point(Event.getPageX(e), Event.getPageY(e));
        if (!this.hasOuterHandles && !this.DDM.isOverTarget(pt, this) )  {
        } else {
            if (this.clickValidator(e)) {


                // set the initial element position
                this.setStartPosition();

                // start tracking mousemove distance and mousedown time to
                // determine when to start the actual drag
                this.DDM.handleMouseDown(e, this);

                // this mousedown is mine
                this.DDM.stopEvent(e);
            } else {


            }
        }
    },

    /**
     * @method clickValidator
     * @description Method validates that the clicked element
     * was indeed the handle or a valid child of the handle
     * @param {Event} e 
     */
    clickValidator: function(e) {
        var target = YAHOO.util.Event.getTarget(e);
        return ( this.isValidHandleChild(target) &&
                    (this.id == this.handleElId || 
                        this.DDM.handleWasClicked(target, this.id)) );
    },

    /**
     * Finds the location the element should be placed if we want to move
     * it to where the mouse location less the click offset would place us.
     * @method getTargetCoord
     * @param {int} iPageX the X coordinate of the click
     * @param {int} iPageY the Y coordinate of the click
     * @return an object that contains the coordinates (Object.x and Object.y)
     * @private
     */
    getTargetCoord: function(iPageX, iPageY) {


        var x = iPageX - this.deltaX;
        var y = iPageY - this.deltaY;

        if (this.constrainX) {
            if (x < this.minX) { x = this.minX; }
            if (x > this.maxX) { x = this.maxX; }
        }

        if (this.constrainY) {
            if (y < this.minY) { y = this.minY; }
            if (y > this.maxY) { y = this.maxY; }
        }

        x = this.getTick(x, this.xTicks);
        y = this.getTick(y, this.yTicks);


        return {x:x, y:y};
    },

    /**
     * Allows you to specify a tag name that should not start a drag operation
     * when clicked.  This is designed to facilitate embedding links within a
     * drag handle that do something other than start the drag.
     * @method addInvalidHandleType
     * @param {string} tagName the type of element to exclude
     */
    addInvalidHandleType: function(tagName) {
        var type = tagName.toUpperCase();
        this.invalidHandleTypes[type] = type;
    },

    /**
     * Lets you to specify an element id for a child of a drag handle
     * that should not initiate a drag
     * @method addInvalidHandleId
     * @param {string} id the element id of the element you wish to ignore
     */
    addInvalidHandleId: function(id) {
        if (typeof id !== "string") {
            id = Dom.generateId(id);
        }
        this.invalidHandleIds[id] = id;
    },


    /**
     * Lets you specify a css class of elements that will not initiate a drag
     * @method addInvalidHandleClass
     * @param {string} cssClass the class of the elements you wish to ignore
     */
    addInvalidHandleClass: function(cssClass) {
        this.invalidHandleClasses.push(cssClass);
    },

    /**
     * Unsets an excluded tag name set by addInvalidHandleType
     * @method removeInvalidHandleType
     * @param {string} tagName the type of element to unexclude
     */
    removeInvalidHandleType: function(tagName) {
        var type = tagName.toUpperCase();
        // this.invalidHandleTypes[type] = null;
        delete this.invalidHandleTypes[type];
    },
    
    /**
     * Unsets an invalid handle id
     * @method removeInvalidHandleId
     * @param {string} id the id of the element to re-enable
     */
    removeInvalidHandleId: function(id) {
        if (typeof id !== "string") {
            id = Dom.generateId(id);
        }
        delete this.invalidHandleIds[id];
    },

    /**
     * Unsets an invalid css class
     * @method removeInvalidHandleClass
     * @param {string} cssClass the class of the element(s) you wish to 
     * re-enable
     */
    removeInvalidHandleClass: function(cssClass) {
        for (var i=0, len=this.invalidHandleClasses.length; i<len; ++i) {
            if (this.invalidHandleClasses[i] == cssClass) {
                delete this.invalidHandleClasses[i];
            }
        }
    },

    /**
     * Checks the tag exclusion list to see if this click should be ignored
     * @method isValidHandleChild
     * @param {HTMLElement} node the HTMLElement to evaluate
     * @return {boolean} true if this is a valid tag type, false if not
     */
    isValidHandleChild: function(node) {

        var valid = true;
        // var n = (node.nodeName == "#text") ? node.parentNode : node;
        var nodeName;
        try {
            nodeName = node.nodeName.toUpperCase();
        } catch(e) {
            nodeName = node.nodeName;
        }
        valid = valid && !this.invalidHandleTypes[nodeName];
        valid = valid && !this.invalidHandleIds[node.id];

        for (var i=0, len=this.invalidHandleClasses.length; valid && i<len; ++i) {
            valid = !Dom.hasClass(node, this.invalidHandleClasses[i]);
        }


        return valid;

    },

    /**
     * Create the array of horizontal tick marks if an interval was specified
     * in setXConstraint().
     * @method setXTicks
     * @private
     */
    setXTicks: function(iStartX, iTickSize) {
        this.xTicks = [];
        this.xTickSize = iTickSize;
        
        var tickMap = {};

        for (var i = this.initPageX; i >= this.minX; i = i - iTickSize) {
            if (!tickMap[i]) {
                this.xTicks[this.xTicks.length] = i;
                tickMap[i] = true;
            }
        }

        for (i = this.initPageX; i <= this.maxX; i = i + iTickSize) {
            if (!tickMap[i]) {
                this.xTicks[this.xTicks.length] = i;
                tickMap[i] = true;
            }
        }

        this.xTicks.sort(this.DDM.numericSort) ;
    },

    /**
     * Create the array of vertical tick marks if an interval was specified in 
     * setYConstraint().
     * @method setYTicks
     * @private
     */
    setYTicks: function(iStartY, iTickSize) {
        this.yTicks = [];
        this.yTickSize = iTickSize;

        var tickMap = {};

        for (var i = this.initPageY; i >= this.minY; i = i - iTickSize) {
            if (!tickMap[i]) {
                this.yTicks[this.yTicks.length] = i;
                tickMap[i] = true;
            }
        }

        for (i = this.initPageY; i <= this.maxY; i = i + iTickSize) {
            if (!tickMap[i]) {
                this.yTicks[this.yTicks.length] = i;
                tickMap[i] = true;
            }
        }

        this.yTicks.sort(this.DDM.numericSort) ;
    },

    /**
     * By default, the element can be dragged any place on the screen.  Use 
     * this method to limit the horizontal travel of the element.  Pass in 
     * 0,0 for the parameters if you want to lock the drag to the y axis.
     * @method setXConstraint
     * @param {int} iLeft the number of pixels the element can move to the left
     * @param {int} iRight the number of pixels the element can move to the 
     * right
     * @param {int} iTickSize optional parameter for specifying that the 
     * element
     * should move iTickSize pixels at a time.
     */
    setXConstraint: function(iLeft, iRight, iTickSize) {
        this.leftConstraint = parseInt(iLeft, 10);
        this.rightConstraint = parseInt(iRight, 10);

        this.minX = this.initPageX - this.leftConstraint;
        this.maxX = this.initPageX + this.rightConstraint;
        if (iTickSize) { this.setXTicks(this.initPageX, iTickSize); }

        this.constrainX = true;
    },

    /**
     * Clears any constraints applied to this instance.  Also clears ticks
     * since they can't exist independent of a constraint at this time.
     * @method clearConstraints
     */
    clearConstraints: function() {
        this.constrainX = false;
        this.constrainY = false;
        this.clearTicks();
    },

    /**
     * Clears any tick interval defined for this instance
     * @method clearTicks
     */
    clearTicks: function() {
        this.xTicks = null;
        this.yTicks = null;
        this.xTickSize = 0;
        this.yTickSize = 0;
    },

    /**
     * By default, the element can be dragged any place on the screen.  Set 
     * this to limit the vertical travel of the element.  Pass in 0,0 for the
     * parameters if you want to lock the drag to the x axis.
     * @method setYConstraint
     * @param {int} iUp the number of pixels the element can move up
     * @param {int} iDown the number of pixels the element can move down
     * @param {int} iTickSize optional parameter for specifying that the 
     * element should move iTickSize pixels at a time.
     */
    setYConstraint: function(iUp, iDown, iTickSize) {
        this.topConstraint = parseInt(iUp, 10);
        this.bottomConstraint = parseInt(iDown, 10);

        this.minY = this.initPageY - this.topConstraint;
        this.maxY = this.initPageY + this.bottomConstraint;
        if (iTickSize) { this.setYTicks(this.initPageY, iTickSize); }

        this.constrainY = true;
        
    },

    /**
     * resetConstraints must be called if you manually reposition a dd element.
     * @method resetConstraints
     */
    resetConstraints: function() {


        // Maintain offsets if necessary
        if (this.initPageX || this.initPageX === 0) {
            // figure out how much this thing has moved
            var dx = (this.maintainOffset) ? this.lastPageX - this.initPageX : 0;
            var dy = (this.maintainOffset) ? this.lastPageY - this.initPageY : 0;

            this.setInitPosition(dx, dy);

        // This is the first time we have detected the element's position
        } else {
            this.setInitPosition();
        }

        if (this.constrainX) {
            this.setXConstraint( this.leftConstraint, 
                                 this.rightConstraint, 
                                 this.xTickSize        );
        }

        if (this.constrainY) {
            this.setYConstraint( this.topConstraint, 
                                 this.bottomConstraint, 
                                 this.yTickSize         );
        }
    },

    /**
     * Normally the drag element is moved pixel by pixel, but we can specify 
     * that it move a number of pixels at a time.  This method resolves the 
     * location when we have it set up like this.
     * @method getTick
     * @param {int} val where we want to place the object
     * @param {int[]} tickArray sorted array of valid points
     * @return {int} the closest tick
     * @private
     */
    getTick: function(val, tickArray) {

        if (!tickArray) {
            // If tick interval is not defined, it is effectively 1 pixel, 
            // so we return the value passed to us.
            return val; 
        } else if (tickArray[0] >= val) {
            // The value is lower than the first tick, so we return the first
            // tick.
            return tickArray[0];
        } else {
            for (var i=0, len=tickArray.length; i<len; ++i) {
                var next = i + 1;
                if (tickArray[next] && tickArray[next] >= val) {
                    var diff1 = val - tickArray[i];
                    var diff2 = tickArray[next] - val;
                    return (diff2 > diff1) ? tickArray[i] : tickArray[next];
                }
            }

            // The value is larger than the last tick, so we return the last
            // tick.
            return tickArray[tickArray.length - 1];
        }
    },

    /**
     * toString method
     * @method toString
     * @return {string} string representation of the dd obj
     */
    toString: function() {
        return ("DragDrop " + this.id);
    }

};
YAHOO.augment(YAHOO.util.DragDrop, YAHOO.util.EventProvider);

/**
* @event mouseDownEvent
* @description Provides access to the mousedown event. The mousedown does not always result in a drag operation.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4MouseDownEvent
* @description Provides access to the mousedown event, before the mouseDownEvent gets fired. Returning false will cancel the drag.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event mouseUpEvent
* @description Fired from inside DragDropMgr when the drag operation is finished.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4StartDragEvent
* @description Fires before the startDragEvent, returning false will cancel the startDrag Event.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event startDragEvent
* @description Occurs after a mouse down and the drag threshold has been met. The drag threshold default is either 3 pixels of mouse movement or 1 full second of holding the mousedown. 
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4EndDragEvent
* @description Fires before the endDragEvent. Returning false will cancel.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event endDragEvent
* @description Fires on the mouseup event after a drag has been initiated (startDrag fired).
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event dragEvent
* @description Occurs every mousemove event while dragging.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragEvent
* @description Fires before the dragEvent.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event invalidDropEvent
* @description Fires when the dragged objects is dropped in a location that contains no drop targets.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragOutEvent
* @description Fires before the dragOutEvent
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragOutEvent
* @description Fires when a dragged object is no longer over an object that had the onDragEnter fire. 
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragEnterEvent
* @description Occurs when the dragged object first interacts with another targettable drag and drop object.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragOverEvent
* @description Fires before the dragOverEvent.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragOverEvent
* @description Fires every mousemove event while over a drag and drop object.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragDropEvent 
* @description Fires before the dragDropEvent
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragDropEvent
* @description Fires when the dragged objects is dropped on another.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
})();
/**
 * A DragDrop implementation where the linked element follows the 
 * mouse cursor during a drag.
 * @class DD
 * @extends YAHOO.util.DragDrop
 * @constructor
 * @param {String} id the id of the linked element 
 * @param {String} sGroup the group of related DragDrop items
 * @param {object} config an object containing configurable attributes
 *                Valid properties for DD: 
 *                    scroll
 */
YAHOO.util.DD = function(id, sGroup, config) {
    if (id) {
        this.init(id, sGroup, config);
    }
};

YAHOO.extend(YAHOO.util.DD, YAHOO.util.DragDrop, {

    /**
     * When set to true, the utility automatically tries to scroll the browser
     * window when a drag and drop element is dragged near the viewport boundary.
     * Defaults to true.
     * @property scroll
     * @type boolean
     */
    scroll: true, 

    /**
     * Sets the pointer offset to the distance between the linked element's top 
     * left corner and the location the element was clicked
     * @method autoOffset
     * @param {int} iPageX the X coordinate of the click
     * @param {int} iPageY the Y coordinate of the click
     */
    autoOffset: function(iPageX, iPageY) {
        var x = iPageX - this.startPageX;
        var y = iPageY - this.startPageY;
        this.setDelta(x, y);
    },

    /** 
     * Sets the pointer offset.  You can call this directly to force the 
     * offset to be in a particular location (e.g., pass in 0,0 to set it 
     * to the center of the object, as done in YAHOO.widget.Slider)
     * @method setDelta
     * @param {int} iDeltaX the distance from the left
     * @param {int} iDeltaY the distance from the top
     */
    setDelta: function(iDeltaX, iDeltaY) {
        this.deltaX = iDeltaX;
        this.deltaY = iDeltaY;
    },

    /**
     * Sets the drag element to the location of the mousedown or click event, 
     * maintaining the cursor location relative to the location on the element 
     * that was clicked.  Override this if you want to place the element in a 
     * location other than where the cursor is.
     * @method setDragElPos
     * @param {int} iPageX the X coordinate of the mousedown or drag event
     * @param {int} iPageY the Y coordinate of the mousedown or drag event
     */
    setDragElPos: function(iPageX, iPageY) {
        // the first time we do this, we are going to check to make sure
        // the element has css positioning

        var el = this.getDragEl();
        this.alignElWithMouse(el, iPageX, iPageY);
    },

    /**
     * Sets the element to the location of the mousedown or click event, 
     * maintaining the cursor location relative to the location on the element 
     * that was clicked.  Override this if you want to place the element in a 
     * location other than where the cursor is.
     * @method alignElWithMouse
     * @param {HTMLElement} el the element to move
     * @param {int} iPageX the X coordinate of the mousedown or drag event
     * @param {int} iPageY the Y coordinate of the mousedown or drag event
     */
    alignElWithMouse: function(el, iPageX, iPageY) {
        var oCoord = this.getTargetCoord(iPageX, iPageY);

        if (!this.deltaSetXY) {
            var aCoord = [oCoord.x, oCoord.y];
            YAHOO.util.Dom.setXY(el, aCoord);

            var newLeft = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
            var newTop  = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );

            this.deltaSetXY = [ newLeft - oCoord.x, newTop - oCoord.y ];
        } else {
            YAHOO.util.Dom.setStyle(el, "left", (oCoord.x + this.deltaSetXY[0]) + "px");
            YAHOO.util.Dom.setStyle(el, "top",  (oCoord.y + this.deltaSetXY[1]) + "px");
        }
        
        this.cachePosition(oCoord.x, oCoord.y);
        var self = this;
        setTimeout(function() {
            self.autoScroll.call(self, oCoord.x, oCoord.y, el.offsetHeight, el.offsetWidth);
        }, 0);
    },

    /**
     * Saves the most recent position so that we can reset the constraints and
     * tick marks on-demand.  We need to know this so that we can calculate the
     * number of pixels the element is offset from its original position.
     * @method cachePosition
     * @param iPageX the current x position (optional, this just makes it so we
     * don't have to look it up again)
     * @param iPageY the current y position (optional, this just makes it so we
     * don't have to look it up again)
     */
    cachePosition: function(iPageX, iPageY) {
        if (iPageX) {
            this.lastPageX = iPageX;
            this.lastPageY = iPageY;
        } else {
            var aCoord = YAHOO.util.Dom.getXY(this.getEl());
            this.lastPageX = aCoord[0];
            this.lastPageY = aCoord[1];
        }
    },

    /**
     * Auto-scroll the window if the dragged object has been moved beyond the 
     * visible window boundary.
     * @method autoScroll
     * @param {int} x the drag element's x position
     * @param {int} y the drag element's y position
     * @param {int} h the height of the drag element
     * @param {int} w the width of the drag element
     * @private
     */
    autoScroll: function(x, y, h, w) {

        if (this.scroll) {
            // The client height
            var clientH = this.DDM.getClientHeight();

            // The client width
            var clientW = this.DDM.getClientWidth();

            // The amt scrolled down
            var st = this.DDM.getScrollTop();

            // The amt scrolled right
            var sl = this.DDM.getScrollLeft();

            // Location of the bottom of the element
            var bot = h + y;

            // Location of the right of the element
            var right = w + x;

            // The distance from the cursor to the bottom of the visible area, 
            // adjusted so that we don't scroll if the cursor is beyond the
            // element drag constraints
            var toBot = (clientH + st - y - this.deltaY);

            // The distance from the cursor to the right of the visible area
            var toRight = (clientW + sl - x - this.deltaX);


            // How close to the edge the cursor must be before we scroll
            // var thresh = (document.all) ? 100 : 40;
            var thresh = 40;

            // How many pixels to scroll per autoscroll op.  This helps to reduce 
            // clunky scrolling. IE is more sensitive about this ... it needs this 
            // value to be higher.
            var scrAmt = (document.all) ? 80 : 30;

            // Scroll down if we are near the bottom of the visible page and the 
            // obj extends below the crease
            if ( bot > clientH && toBot < thresh ) { 
                window.scrollTo(sl, st + scrAmt); 
            }

            // Scroll up if the window is scrolled down and the top of the object
            // goes above the top border
            if ( y < st && st > 0 && y - st < thresh ) { 
                window.scrollTo(sl, st - scrAmt); 
            }

            // Scroll right if the obj is beyond the right border and the cursor is
            // near the border.
            if ( right > clientW && toRight < thresh ) { 
                window.scrollTo(sl + scrAmt, st); 
            }

            // Scroll left if the window has been scrolled to the right and the obj
            // extends past the left border
            if ( x < sl && sl > 0 && x - sl < thresh ) { 
                window.scrollTo(sl - scrAmt, st);
            }
        }
    },

    /*
     * Sets up config options specific to this class. Overrides
     * YAHOO.util.DragDrop, but all versions of this method through the 
     * inheritance chain are called
     */
    applyConfig: function() {
        YAHOO.util.DD.superclass.applyConfig.call(this);
        this.scroll = (this.config.scroll !== false);
    },

    /*
     * Event that fires prior to the onMouseDown event.  Overrides 
     * YAHOO.util.DragDrop.
     */
    b4MouseDown: function(e) {
        this.setStartPosition();
        // this.resetConstraints();
        this.autoOffset(YAHOO.util.Event.getPageX(e), 
                            YAHOO.util.Event.getPageY(e));
    },

    /*
     * Event that fires prior to the onDrag event.  Overrides 
     * YAHOO.util.DragDrop.
     */
    b4Drag: function(e) {
        this.setDragElPos(YAHOO.util.Event.getPageX(e), 
                            YAHOO.util.Event.getPageY(e));
    },

    toString: function() {
        return ("DD " + this.id);
    }

    //////////////////////////////////////////////////////////////////////////
    // Debugging ygDragDrop events that can be overridden
    //////////////////////////////////////////////////////////////////////////
    /*
    startDrag: function(x, y) {
    },

    onDrag: function(e) {
    },

    onDragEnter: function(e, id) {
    },

    onDragOver: function(e, id) {
    },

    onDragOut: function(e, id) {
    },

    onDragDrop: function(e, id) {
    },

    endDrag: function(e) {
    }

    */

/**
* @event mouseDownEvent
* @description Provides access to the mousedown event. The mousedown does not always result in a drag operation.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4MouseDownEvent
* @description Provides access to the mousedown event, before the mouseDownEvent gets fired. Returning false will cancel the drag.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event mouseUpEvent
* @description Fired from inside DragDropMgr when the drag operation is finished.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4StartDragEvent
* @description Fires before the startDragEvent, returning false will cancel the startDrag Event.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event startDragEvent
* @description Occurs after a mouse down and the drag threshold has been met. The drag threshold default is either 3 pixels of mouse movement or 1 full second of holding the mousedown. 
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4EndDragEvent
* @description Fires before the endDragEvent. Returning false will cancel.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event endDragEvent
* @description Fires on the mouseup event after a drag has been initiated (startDrag fired).
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event dragEvent
* @description Occurs every mousemove event while dragging.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragEvent
* @description Fires before the dragEvent.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event invalidDropEvent
* @description Fires when the dragged objects is dropped in a location that contains no drop targets.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragOutEvent
* @description Fires before the dragOutEvent
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragOutEvent
* @description Fires when a dragged object is no longer over an object that had the onDragEnter fire. 
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragEnterEvent
* @description Occurs when the dragged object first interacts with another targettable drag and drop object.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragOverEvent
* @description Fires before the dragOverEvent.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragOverEvent
* @description Fires every mousemove event while over a drag and drop object.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragDropEvent 
* @description Fires before the dragDropEvent
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragDropEvent
* @description Fires when the dragged objects is dropped on another.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
});
/**
 * A DragDrop implementation that inserts an empty, bordered div into
 * the document that follows the cursor during drag operations.  At the time of
 * the click, the frame div is resized to the dimensions of the linked html
 * element, and moved to the exact location of the linked element.
 *
 * References to the "frame" element refer to the single proxy element that
 * was created to be dragged in place of all DDProxy elements on the
 * page.
 *
 * @class DDProxy
 * @extends YAHOO.util.DD
 * @constructor
 * @param {String} id the id of the linked html element
 * @param {String} sGroup the group of related DragDrop objects
 * @param {object} config an object containing configurable attributes
 *                Valid properties for DDProxy in addition to those in DragDrop: 
 *                   resizeFrame, centerFrame, dragElId
 */
YAHOO.util.DDProxy = function(id, sGroup, config) {
    if (id) {
        this.init(id, sGroup, config);
        this.initFrame(); 
    }
};

/**
 * The default drag frame div id
 * @property YAHOO.util.DDProxy.dragElId
 * @type String
 * @static
 */
YAHOO.util.DDProxy.dragElId = "ygddfdiv";

YAHOO.extend(YAHOO.util.DDProxy, YAHOO.util.DD, {

    /**
     * By default we resize the drag frame to be the same size as the element
     * we want to drag (this is to get the frame effect).  We can turn it off
     * if we want a different behavior.
     * @property resizeFrame
     * @type boolean
     */
    resizeFrame: true,

    /**
     * By default the frame is positioned exactly where the drag element is, so
     * we use the cursor offset provided by YAHOO.util.DD.  Another option that works only if
     * you do not have constraints on the obj is to have the drag frame centered
     * around the cursor.  Set centerFrame to true for this effect.
     * @property centerFrame
     * @type boolean
     */
    centerFrame: false,

    /**
     * Creates the proxy element if it does not yet exist
     * @method createFrame
     */
    createFrame: function() {
        var self=this, body=document.body;

        if (!body || !body.firstChild) {
            setTimeout( function() { self.createFrame(); }, 50 );
            return;
        }

        var div=this.getDragEl(), Dom=YAHOO.util.Dom;

        if (!div) {
            div    = document.createElement("div");
            div.id = this.dragElId;
            var s  = div.style;

            s.position   = "absolute";
            s.visibility = "hidden";
            s.cursor     = "move";
            s.border     = "2px solid #aaa";
            s.zIndex     = 999;
            s.height     = "25px";
            s.width      = "25px";

            var _data = document.createElement('div');
            Dom.setStyle(_data, 'height', '100%');
            Dom.setStyle(_data, 'width', '100%');
            /**
            * If the proxy element has no background-color, then it is considered to the "transparent" by Internet Explorer.
            * Since it is "transparent" then the events pass through it to the iframe below.
            * So creating a "fake" div inside the proxy element and giving it a background-color, then setting it to an
            * opacity of 0, it appears to not be there, however IE still thinks that it is so the events never pass through.
            */
            Dom.setStyle(_data, 'background-color', '#ccc');
            Dom.setStyle(_data, 'opacity', '0');
            div.appendChild(_data);

            // appendChild can blow up IE if invoked prior to the window load event
            // while rendering a table.  It is possible there are other scenarios 
            // that would cause this to happen as well.
            body.insertBefore(div, body.firstChild);
        }
    },

    /**
     * Initialization for the drag frame element.  Must be called in the
     * constructor of all subclasses
     * @method initFrame
     */
    initFrame: function() {
        this.createFrame();
    },

    applyConfig: function() {
        YAHOO.util.DDProxy.superclass.applyConfig.call(this);

        this.resizeFrame = (this.config.resizeFrame !== false);
        this.centerFrame = (this.config.centerFrame);
        this.setDragElId(this.config.dragElId || YAHOO.util.DDProxy.dragElId);
    },

    /**
     * Resizes the drag frame to the dimensions of the clicked object, positions 
     * it over the object, and finally displays it
     * @method showFrame
     * @param {int} iPageX X click position
     * @param {int} iPageY Y click position
     * @private
     */
    showFrame: function(iPageX, iPageY) {
        var el = this.getEl();
        var dragEl = this.getDragEl();
        var s = dragEl.style;

        this._resizeProxy();

        if (this.centerFrame) {
            this.setDelta( Math.round(parseInt(s.width,  10)/2), 
                           Math.round(parseInt(s.height, 10)/2) );
        }

        this.setDragElPos(iPageX, iPageY);

        YAHOO.util.Dom.setStyle(dragEl, "visibility", "visible"); 
    },

    /**
     * The proxy is automatically resized to the dimensions of the linked
     * element when a drag is initiated, unless resizeFrame is set to false
     * @method _resizeProxy
     * @private
     */
    _resizeProxy: function() {
        if (this.resizeFrame) {
            var DOM    = YAHOO.util.Dom;
            var el     = this.getEl();
            var dragEl = this.getDragEl();

            var bt = parseInt( DOM.getStyle(dragEl, "borderTopWidth"    ), 10);
            var br = parseInt( DOM.getStyle(dragEl, "borderRightWidth"  ), 10);
            var bb = parseInt( DOM.getStyle(dragEl, "borderBottomWidth" ), 10);
            var bl = parseInt( DOM.getStyle(dragEl, "borderLeftWidth"   ), 10);

            if (isNaN(bt)) { bt = 0; }
            if (isNaN(br)) { br = 0; }
            if (isNaN(bb)) { bb = 0; }
            if (isNaN(bl)) { bl = 0; }


            var newWidth  = Math.max(0, el.offsetWidth  - br - bl);                                                                                           
            var newHeight = Math.max(0, el.offsetHeight - bt - bb);


            DOM.setStyle( dragEl, "width",  newWidth  + "px" );
            DOM.setStyle( dragEl, "height", newHeight + "px" );
        }
    },

    // overrides YAHOO.util.DragDrop
    b4MouseDown: function(e) {
        this.setStartPosition();
        var x = YAHOO.util.Event.getPageX(e);
        var y = YAHOO.util.Event.getPageY(e);
        this.autoOffset(x, y);

        // This causes the autoscroll code to kick off, which means autoscroll can
        // happen prior to the check for a valid drag handle.
        // this.setDragElPos(x, y);
    },

    // overrides YAHOO.util.DragDrop
    b4StartDrag: function(x, y) {
        // show the drag frame
        this.showFrame(x, y);
    },

    // overrides YAHOO.util.DragDrop
    b4EndDrag: function(e) {
        YAHOO.util.Dom.setStyle(this.getDragEl(), "visibility", "hidden"); 
    },

    // overrides YAHOO.util.DragDrop
    // By default we try to move the element to the last location of the frame.  
    // This is so that the default behavior mirrors that of YAHOO.util.DD.  
    endDrag: function(e) {
        var DOM = YAHOO.util.Dom;
        var lel = this.getEl();
        var del = this.getDragEl();

        // Show the drag frame briefly so we can get its position
        // del.style.visibility = "";
        DOM.setStyle(del, "visibility", ""); 

        // Hide the linked element before the move to get around a Safari 
        // rendering bug.
        //lel.style.visibility = "hidden";
        DOM.setStyle(lel, "visibility", "hidden"); 
        YAHOO.util.DDM.moveToEl(lel, del);
        //del.style.visibility = "hidden";
        DOM.setStyle(del, "visibility", "hidden"); 
        //lel.style.visibility = "";
        DOM.setStyle(lel, "visibility", ""); 
    },

    toString: function() {
        return ("DDProxy " + this.id);
    }
/**
* @event mouseDownEvent
* @description Provides access to the mousedown event. The mousedown does not always result in a drag operation.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4MouseDownEvent
* @description Provides access to the mousedown event, before the mouseDownEvent gets fired. Returning false will cancel the drag.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event mouseUpEvent
* @description Fired from inside DragDropMgr when the drag operation is finished.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4StartDragEvent
* @description Fires before the startDragEvent, returning false will cancel the startDrag Event.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event startDragEvent
* @description Occurs after a mouse down and the drag threshold has been met. The drag threshold default is either 3 pixels of mouse movement or 1 full second of holding the mousedown. 
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event b4EndDragEvent
* @description Fires before the endDragEvent. Returning false will cancel.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event endDragEvent
* @description Fires on the mouseup event after a drag has been initiated (startDrag fired).
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

/**
* @event dragEvent
* @description Occurs every mousemove event while dragging.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragEvent
* @description Fires before the dragEvent.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event invalidDropEvent
* @description Fires when the dragged objects is dropped in a location that contains no drop targets.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragOutEvent
* @description Fires before the dragOutEvent
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragOutEvent
* @description Fires when a dragged object is no longer over an object that had the onDragEnter fire. 
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragEnterEvent
* @description Occurs when the dragged object first interacts with another targettable drag and drop object.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragOverEvent
* @description Fires before the dragOverEvent.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragOverEvent
* @description Fires every mousemove event while over a drag and drop object.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event b4DragDropEvent 
* @description Fires before the dragDropEvent
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/
/**
* @event dragDropEvent
* @description Fires when the dragged objects is dropped on another.
* @type YAHOO.util.CustomEvent See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
*/

});
/**
 * A DragDrop implementation that does not move, but can be a drop 
 * target.  You would get the same result by simply omitting implementation 
 * for the event callbacks, but this way we reduce the processing cost of the 
 * event listener and the callbacks.
 * @class DDTarget
 * @extends YAHOO.util.DragDrop 
 * @constructor
 * @param {String} id the id of the element that is a drop target
 * @param {String} sGroup the group of related DragDrop objects
 * @param {object} config an object containing configurable attributes
 *                 Valid properties for DDTarget in addition to those in 
 *                 DragDrop: 
 *                    none
 */
YAHOO.util.DDTarget = function(id, sGroup, config) {
    if (id) {
        this.initTarget(id, sGroup, config);
    }
};

// YAHOO.util.DDTarget.prototype = new YAHOO.util.DragDrop();
YAHOO.extend(YAHOO.util.DDTarget, YAHOO.util.DragDrop, {
    toString: function() {
        return ("DDTarget " + this.id);
    }
});
YAHOO.register("dragdrop", YAHOO.util.DragDropMgr, {version: "2.7.0", build: "1796"});
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
/**
 * The Connection Manager provides a simplified interface to the XMLHttpRequest
 * object.  It handles cross-browser instantiantion of XMLHttpRequest, negotiates the
 * interactive states and server response, returning the results to a pre-defined
 * callback you create.
 *
 * @namespace YAHOO.util
 * @module connection
 * @requires yahoo
 * @requires event
 */

/**
 * The Connection Manager singleton provides methods for creating and managing
 * asynchronous transactions.
 *
 * @class Connect
 */

YAHOO.util.Connect =
{
  /**
   * @description Array of MSFT ActiveX ids for XMLHttpRequest.
   * @property _msxml_progid
   * @private
   * @static
   * @type array
   */
	_msxml_progid:[
		'Microsoft.XMLHTTP',
		'MSXML2.XMLHTTP.3.0',
		'MSXML2.XMLHTTP'
		],

  /**
   * @description Object literal of HTTP header(s)
   * @property _http_header
   * @private
   * @static
   * @type object
   */
	_http_headers:{},

  /**
   * @description Determines if HTTP headers are set.
   * @property _has_http_headers
   * @private
   * @static
   * @type boolean
   */
	_has_http_headers:false,

 /**
  * @description Determines if a default header of
  * Content-Type of 'application/x-www-form-urlencoded'
  * will be added to any client HTTP headers sent for POST
  * transactions.
  * @property _use_default_post_header
  * @private
  * @static
  * @type boolean
  */
    _use_default_post_header:true,

 /**
  * @description The default header used for POST transactions.
  * @property _default_post_header
  * @private
  * @static
  * @type boolean
  */
    _default_post_header:'application/x-www-form-urlencoded; charset=UTF-8',

 /**
  * @description The default header used for transactions involving the
  * use of HTML forms.
  * @property _default_form_header
  * @private
  * @static
  * @type boolean
  */
    _default_form_header:'application/x-www-form-urlencoded',

 /**
  * @description Determines if a default header of
  * 'X-Requested-With: XMLHttpRequest'
  * will be added to each transaction.
  * @property _use_default_xhr_header
  * @private
  * @static
  * @type boolean
  */
    _use_default_xhr_header:true,

 /**
  * @description The default header value for the label
  * "X-Requested-With".  This is sent with each
  * transaction, by default, to identify the
  * request as being made by YUI Connection Manager.
  * @property _default_xhr_header
  * @private
  * @static
  * @type boolean
  */
    _default_xhr_header:'XMLHttpRequest',

 /**
  * @description Determines if custom, default headers
  * are set for each transaction.
  * @property _has_default_header
  * @private
  * @static
  * @type boolean
  */
    _has_default_headers:true,

 /**
  * @description Determines if custom, default headers
  * are set for each transaction.
  * @property _has_default_header
  * @private
  * @static
  * @type boolean
  */
    _default_headers:{},

 /**
  * @description Property modified by setForm() to determine if the data
  * should be submitted as an HTML form.
  * @property _isFormSubmit
  * @private
  * @static
  * @type boolean
  */
    _isFormSubmit:false,

 /**
  * @description Property modified by setForm() to determine if a file(s)
  * upload is expected.
  * @property _isFileUpload
  * @private
  * @static
  * @type boolean
  */
    _isFileUpload:false,

 /**
  * @description Property modified by setForm() to set a reference to the HTML
  * form node if the desired action is file upload.
  * @property _formNode
  * @private
  * @static
  * @type object
  */
    _formNode:null,

 /**
  * @description Property modified by setForm() to set the HTML form data
  * for each transaction.
  * @property _sFormData
  * @private
  * @static
  * @type string
  */
    _sFormData:null,

 /**
  * @description Collection of polling references to the polling mechanism in handleReadyState.
  * @property _poll
  * @private
  * @static
  * @type object
  */
    _poll:{},

 /**
  * @description Queue of timeout values for each transaction callback with a defined timeout value.
  * @property _timeOut
  * @private
  * @static
  * @type object
  */
    _timeOut:{},

  /**
   * @description The polling frequency, in milliseconds, for HandleReadyState.
   * when attempting to determine a transaction's XHR readyState.
   * The default is 50 milliseconds.
   * @property _polling_interval
   * @private
   * @static
   * @type int
   */
     _polling_interval:50,

  /**
   * @description A transaction counter that increments the transaction id for each transaction.
   * @property _transaction_id
   * @private
   * @static
   * @type int
   */
     _transaction_id:0,

  /**
   * @description Tracks the name-value pair of the "clicked" submit button if multiple submit
   * buttons are present in an HTML form; and, if YAHOO.util.Event is available.
   * @property _submitElementValue
   * @private
   * @static
   * @type string
   */
	 _submitElementValue:null,

  /**
   * @description Determines whether YAHOO.util.Event is available and returns true or false.
   * If true, an event listener is bound at the document level to trap click events that
   * resolve to a target type of "Submit".  This listener will enable setForm() to determine
   * the clicked "Submit" value in a multi-Submit button, HTML form.
   * @property _hasSubmitListener
   * @private
   * @static
   */
	 _hasSubmitListener:(function()
	 {
		if(YAHOO.util.Event){
			YAHOO.util.Event.addListener(
				document,
				'click',
				function(e){
					var obj = YAHOO.util.Event.getTarget(e),
						name = obj.nodeName.toLowerCase();
					if((name === 'input' || name === 'button') && (obj.type && obj.type.toLowerCase() == 'submit')){
						YAHOO.util.Connect._submitElementValue = encodeURIComponent(obj.name) + "=" + encodeURIComponent(obj.value);
					}
				});
			return true;
	    }
	    return false;
	 })(),

  /**
   * @description Custom event that fires at the start of a transaction
   * @property startEvent
   * @private
   * @static
   * @type CustomEvent
   */
	startEvent: new YAHOO.util.CustomEvent('start'),

  /**
   * @description Custom event that fires when a transaction response has completed.
   * @property completeEvent
   * @private
   * @static
   * @type CustomEvent
   */
	completeEvent: new YAHOO.util.CustomEvent('complete'),

  /**
   * @description Custom event that fires when handleTransactionResponse() determines a
   * response in the HTTP 2xx range.
   * @property successEvent
   * @private
   * @static
   * @type CustomEvent
   */
	successEvent: new YAHOO.util.CustomEvent('success'),

  /**
   * @description Custom event that fires when handleTransactionResponse() determines a
   * response in the HTTP 4xx/5xx range.
   * @property failureEvent
   * @private
   * @static
   * @type CustomEvent
   */
	failureEvent: new YAHOO.util.CustomEvent('failure'),

  /**
   * @description Custom event that fires when handleTransactionResponse() determines a
   * response in the HTTP 4xx/5xx range.
   * @property failureEvent
   * @private
   * @static
   * @type CustomEvent
   */
	uploadEvent: new YAHOO.util.CustomEvent('upload'),

  /**
   * @description Custom event that fires when a transaction is successfully aborted.
   * @property abortEvent
   * @private
   * @static
   * @type CustomEvent
   */
	abortEvent: new YAHOO.util.CustomEvent('abort'),

  /**
   * @description A reference table that maps callback custom events members to its specific
   * event name.
   * @property _customEvents
   * @private
   * @static
   * @type object
   */
	_customEvents:
	{
		onStart:['startEvent', 'start'],
		onComplete:['completeEvent', 'complete'],
		onSuccess:['successEvent', 'success'],
		onFailure:['failureEvent', 'failure'],
		onUpload:['uploadEvent', 'upload'],
		onAbort:['abortEvent', 'abort']
	},

  /**
   * @description Member to add an ActiveX id to the existing xml_progid array.
   * In the event(unlikely) a new ActiveX id is introduced, it can be added
   * without internal code modifications.
   * @method setProgId
   * @public
   * @static
   * @param {string} id The ActiveX id to be added to initialize the XHR object.
   * @return void
   */
	setProgId:function(id)
	{
		this._msxml_progid.unshift(id);
	},

  /**
   * @description Member to override the default POST header.
   * @method setDefaultPostHeader
   * @public
   * @static
   * @param {boolean} b Set and use default header - true or false .
   * @return void
   */
	setDefaultPostHeader:function(b)
	{
		if(typeof b == 'string'){
			this._default_post_header = b;
		}
		else if(typeof b == 'boolean'){
			this._use_default_post_header = b;
		}
	},

  /**
   * @description Member to override the default transaction header..
   * @method setDefaultXhrHeader
   * @public
   * @static
   * @param {boolean} b Set and use default header - true or false .
   * @return void
   */
	setDefaultXhrHeader:function(b)
	{
		if(typeof b == 'string'){
			this._default_xhr_header = b;
		}
		else{
			this._use_default_xhr_header = b;
		}
	},

  /**
   * @description Member to modify the default polling interval.
   * @method setPollingInterval
   * @public
   * @static
   * @param {int} i The polling interval in milliseconds.
   * @return void
   */
	setPollingInterval:function(i)
	{
		if(typeof i == 'number' && isFinite(i)){
			this._polling_interval = i;
		}
	},

  /**
   * @description Instantiates a XMLHttpRequest object and returns an object with two properties:
   * the XMLHttpRequest instance and the transaction id.
   * @method createXhrObject
   * @private
   * @static
   * @param {int} transactionId Property containing the transaction id for this transaction.
   * @return object
   */
	createXhrObject:function(transactionId)
	{
		var obj,http;
		try
		{
			// Instantiates XMLHttpRequest in non-IE browsers and assigns to http.
			http = new XMLHttpRequest();
			//  Object literal with http and tId properties
			obj = { conn:http, tId:transactionId };
		}
		catch(e)
		{
			for(var i=0; i<this._msxml_progid.length; ++i){
				try
				{
					// Instantiates XMLHttpRequest for IE and assign to http
					http = new ActiveXObject(this._msxml_progid[i]);
					//  Object literal with conn and tId properties
					obj = { conn:http, tId:transactionId };
					break;
				}
				catch(e2){}
			}
		}
		finally
		{
			return obj;
		}
	},

  /**
   * @description This method is called by asyncRequest to create a
   * valid connection object for the transaction.  It also passes a
   * transaction id and increments the transaction id counter.
   * @method getConnectionObject
   * @private
   * @static
   * @return {object}
   */
	getConnectionObject:function(isFileUpload)
	{
		var o;
		var tId = this._transaction_id;

		try
		{
			if(!isFileUpload){
				o = this.createXhrObject(tId);
			}
			else{
				o = {};
				o.tId = tId;
				o.isUpload = true;
			}

			if(o){
				this._transaction_id++;
			}
		}
		catch(e){}
		finally
		{
			return o;
		}
	},

  /**
   * @description Method for initiating an asynchronous request via the XHR object.
   * @method asyncRequest
   * @public
   * @static
   * @param {string} method HTTP transaction method
   * @param {string} uri Fully qualified path of resource
   * @param {callback} callback User-defined callback function or object
   * @param {string} postData POST body
   * @return {object} Returns the connection object
   */
	asyncRequest:function(method, uri, callback, postData)
	{
		var o = (this._isFileUpload)?this.getConnectionObject(true):this.getConnectionObject();
		var args = (callback && callback.argument)?callback.argument:null;

		if(!o){
			return null;
		}
		else{

			// Intialize any transaction-specific custom events, if provided.
			if(callback && callback.customevents){
				this.initCustomEvents(o, callback);
			}

			if(this._isFormSubmit){
				if(this._isFileUpload){
					this.uploadFile(o, callback, uri, postData);
					return o;
				}

				// If the specified HTTP method is GET, setForm() will return an
				// encoded string that is concatenated to the uri to
				// create a querystring.
				if(method.toUpperCase() == 'GET'){
					if(this._sFormData.length !== 0){
						// If the URI already contains a querystring, append an ampersand
						// and then concatenate _sFormData to the URI.
						uri += ((uri.indexOf('?') == -1)?'?':'&') + this._sFormData;
					}
				}
				else if(method.toUpperCase() == 'POST'){
					// If POST data exist in addition to the HTML form data,
					// it will be concatenated to the form data.
					postData = postData?this._sFormData + "&" + postData:this._sFormData;
				}
			}

			if(method.toUpperCase() == 'GET' && (callback && callback.cache === false)){
				// If callback.cache is defined and set to false, a
				// timestamp value will be added to the querystring.
				uri += ((uri.indexOf('?') == -1)?'?':'&') + "rnd=" + new Date().valueOf().toString();
			}

			o.conn.open(method, uri, true);

			// Each transaction will automatically include a custom header of
			// "X-Requested-With: XMLHttpRequest" to identify the request as
			// having originated from Connection Manager.
			if(this._use_default_xhr_header){
				if(!this._default_headers['X-Requested-With']){
					this.initHeader('X-Requested-With', this._default_xhr_header, true);
				}
			}

			//If the transaction method is POST and the POST header value is set to true
			//or a custom value, initalize the Content-Type header to this value.
			if((method.toUpperCase() === 'POST' && this._use_default_post_header) && this._isFormSubmit === false){
				this.initHeader('Content-Type', this._default_post_header);
			}

			//Initialize all default and custom HTTP headers,
			if(this._has_default_headers || this._has_http_headers){
				this.setHeader(o);
			}

			this.handleReadyState(o, callback);
			o.conn.send(postData || '');


			// Reset the HTML form data and state properties as
			// soon as the data are submitted.
			if(this._isFormSubmit === true){
				this.resetFormState();
			}

			// Fire global custom event -- startEvent
			this.startEvent.fire(o, args);

			if(o.startEvent){
				// Fire transaction custom event -- startEvent
				o.startEvent.fire(o, args);
			}

			return o;
		}
	},

  /**
   * @description This method creates and subscribes custom events,
   * specific to each transaction
   * @method initCustomEvents
   * @private
   * @static
   * @param {object} o The connection object
   * @param {callback} callback The user-defined callback object
   * @return {void}
   */
	initCustomEvents:function(o, callback)
	{
		var prop;
		// Enumerate through callback.customevents members and bind/subscribe
		// events that match in the _customEvents table.
		for(prop in callback.customevents){
			if(this._customEvents[prop][0]){
				// Create the custom event
				o[this._customEvents[prop][0]] = new YAHOO.util.CustomEvent(this._customEvents[prop][1], (callback.scope)?callback.scope:null);

				// Subscribe the custom event
				o[this._customEvents[prop][0]].subscribe(callback.customevents[prop]);
			}
		}
	},

  /**
   * @description This method serves as a timer that polls the XHR object's readyState
   * property during a transaction, instead of binding a callback to the
   * onreadystatechange event.  Upon readyState 4, handleTransactionResponse
   * will process the response, and the timer will be cleared.
   * @method handleReadyState
   * @private
   * @static
   * @param {object} o The connection object
   * @param {callback} callback The user-defined callback object
   * @return {void}
   */

    handleReadyState:function(o, callback)

    {
		var oConn = this;
		var args = (callback && callback.argument)?callback.argument:null;

		if(callback && callback.timeout){
			this._timeOut[o.tId] = window.setTimeout(function(){ oConn.abort(o, callback, true); }, callback.timeout);
		}

		this._poll[o.tId] = window.setInterval(
			function(){
				if(o.conn && o.conn.readyState === 4){

					// Clear the polling interval for the transaction
					// and remove the reference from _poll.
					window.clearInterval(oConn._poll[o.tId]);
					delete oConn._poll[o.tId];

					if(callback && callback.timeout){
						window.clearTimeout(oConn._timeOut[o.tId]);
						delete oConn._timeOut[o.tId];
					}

					// Fire global custom event -- completeEvent
					oConn.completeEvent.fire(o, args);

					if(o.completeEvent){
						// Fire transaction custom event -- completeEvent
						o.completeEvent.fire(o, args);
					}

					oConn.handleTransactionResponse(o, callback);
				}
			}
		,this._polling_interval);
    },

  /**
   * @description This method attempts to interpret the server response and
   * determine whether the transaction was successful, or if an error or
   * exception was encountered.
   * @method handleTransactionResponse
   * @private
   * @static
   * @param {object} o The connection object
   * @param {object} callback The user-defined callback object
   * @param {boolean} isAbort Determines if the transaction was terminated via abort().
   * @return {void}
   */
    handleTransactionResponse:function(o, callback, isAbort)
    {
		var httpStatus, responseObject;
		var args = (callback && callback.argument)?callback.argument:null;

		try
		{
			if(o.conn.status !== undefined && o.conn.status !== 0){
				httpStatus = o.conn.status;
			}
			else{
				httpStatus = 13030;
			}
		}
		catch(e){

			 // 13030 is a custom code to indicate the condition -- in Mozilla/FF --
			 // when the XHR object's status and statusText properties are
			 // unavailable, and a query attempt throws an exception.
			httpStatus = 13030;
		}

		if(httpStatus >= 200 && httpStatus < 300 || httpStatus === 1223){
			responseObject = this.createResponseObject(o, args);
			if(callback && callback.success){
				if(!callback.scope){
					callback.success(responseObject);
				}
				else{
					// If a scope property is defined, the callback will be fired from
					// the context of the object.
					callback.success.apply(callback.scope, [responseObject]);
				}
			}

			// Fire global custom event -- successEvent
			this.successEvent.fire(responseObject);

			if(o.successEvent){
				// Fire transaction custom event -- successEvent
				o.successEvent.fire(responseObject);
			}
		}
		else{
			switch(httpStatus){
				// The following cases are wininet.dll error codes that may be encountered.
				case 12002: // Server timeout
				case 12029: // 12029 to 12031 correspond to dropped connections.
				case 12030:
				case 12031:
				case 12152: // Connection closed by server.
				case 13030: // See above comments for variable status.
					responseObject = this.createExceptionObject(o.tId, args, (isAbort?isAbort:false));
					if(callback && callback.failure){
						if(!callback.scope){
							callback.failure(responseObject);
						}
						else{
							callback.failure.apply(callback.scope, [responseObject]);
						}
					}

					break;
				default:
					responseObject = this.createResponseObject(o, args);
					if(callback && callback.failure){
						if(!callback.scope){
							callback.failure(responseObject);
						}
						else{
							callback.failure.apply(callback.scope, [responseObject]);
						}
					}
			}

			// Fire global custom event -- failureEvent
			this.failureEvent.fire(responseObject);

			if(o.failureEvent){
				// Fire transaction custom event -- failureEvent
				o.failureEvent.fire(responseObject);
			}

		}

		this.releaseObject(o);
		responseObject = null;
    },

  /**
   * @description This method evaluates the server response, creates and returns the results via
   * its properties.  Success and failure cases will differ in the response
   * object's property values.
   * @method createResponseObject
   * @private
   * @static
   * @param {object} o The connection object
   * @param {callbackArg} callbackArg The user-defined argument or arguments to be passed to the callback
   * @return {object}
   */
    createResponseObject:function(o, callbackArg)
    {
		var obj = {};
		var headerObj = {};

		try
		{
			var headerStr = o.conn.getAllResponseHeaders();
			var header = headerStr.split('\n');
			for(var i=0; i<header.length; i++){
				var delimitPos = header[i].indexOf(':');
				if(delimitPos != -1){
					headerObj[header[i].substring(0,delimitPos)] = header[i].substring(delimitPos+2);
				}
			}
		}
		catch(e){}

		obj.tId = o.tId;
		// Normalize IE's response to HTTP 204 when Win error 1223.
		obj.status = (o.conn.status == 1223)?204:o.conn.status;
		// Normalize IE's statusText to "No Content" instead of "Unknown".
		obj.statusText = (o.conn.status == 1223)?"No Content":o.conn.statusText;
		obj.getResponseHeader = headerObj;
		obj.getAllResponseHeaders = headerStr;
		obj.responseText = o.conn.responseText;
		obj.responseXML = o.conn.responseXML;

		if(callbackArg){
			obj.argument = callbackArg;
		}

		return obj;
    },

  /**
   * @description If a transaction cannot be completed due to dropped or closed connections,
   * there may be not be enough information to build a full response object.
   * The failure callback will be fired and this specific condition can be identified
   * by a status property value of 0.
   *
   * If an abort was successful, the status property will report a value of -1.
   *
   * @method createExceptionObject
   * @private
   * @static
   * @param {int} tId The Transaction Id
   * @param {callbackArg} callbackArg The user-defined argument or arguments to be passed to the callback
   * @param {boolean} isAbort Determines if the exception case is caused by a transaction abort
   * @return {object}
   */
    createExceptionObject:function(tId, callbackArg, isAbort)
    {
		var COMM_CODE = 0;
		var COMM_ERROR = 'communication failure';
		var ABORT_CODE = -1;
		var ABORT_ERROR = 'transaction aborted';

		var obj = {};

		obj.tId = tId;
		if(isAbort){
			obj.status = ABORT_CODE;
			obj.statusText = ABORT_ERROR;
		}
		else{
			obj.status = COMM_CODE;
			obj.statusText = COMM_ERROR;
		}

		if(callbackArg){
			obj.argument = callbackArg;
		}

		return obj;
    },

  /**
   * @description Method that initializes the custom HTTP headers for the each transaction.
   * @method initHeader
   * @public
   * @static
   * @param {string} label The HTTP header label
   * @param {string} value The HTTP header value
   * @param {string} isDefault Determines if the specific header is a default header
   * automatically sent with each transaction.
   * @return {void}
   */
	initHeader:function(label, value, isDefault)
	{
		var headerObj = (isDefault)?this._default_headers:this._http_headers;
		headerObj[label] = value;

		if(isDefault){
			this._has_default_headers = true;
		}
		else{
			this._has_http_headers = true;
		}
	},


  /**
   * @description Accessor that sets the HTTP headers for each transaction.
   * @method setHeader
   * @private
   * @static
   * @param {object} o The connection object for the transaction.
   * @return {void}
   */
	setHeader:function(o)
	{
		var prop;
		if(this._has_default_headers){
			for(prop in this._default_headers){
				if(YAHOO.lang.hasOwnProperty(this._default_headers, prop)){
					o.conn.setRequestHeader(prop, this._default_headers[prop]);
				}
			}
		}

		if(this._has_http_headers){
			for(prop in this._http_headers){
				if(YAHOO.lang.hasOwnProperty(this._http_headers, prop)){
					o.conn.setRequestHeader(prop, this._http_headers[prop]);
				}
			}
			delete this._http_headers;

			this._http_headers = {};
			this._has_http_headers = false;
		}
	},

  /**
   * @description Resets the default HTTP headers object
   * @method resetDefaultHeaders
   * @public
   * @static
   * @return {void}
   */
	resetDefaultHeaders:function(){
		delete this._default_headers;
		this._default_headers = {};
		this._has_default_headers = false;
	},

  /**
   * @description This method assembles the form label and value pairs and
   * constructs an encoded string.
   * asyncRequest() will automatically initialize the transaction with a
   * a HTTP header Content-Type of application/x-www-form-urlencoded.
   * @method setForm
   * @public
   * @static
   * @param {string || object} form id or name attribute, or form object.
   * @param {boolean} optional enable file upload.
   * @param {boolean} optional enable file upload over SSL in IE only.
   * @return {string} string of the HTML form field name and value pairs..
   */
	setForm:function(formId, isUpload, secureUri)
	{
        var oForm, oElement, oName, oValue, oDisabled,
            hasSubmit = false,
            data = [], item = 0,
            i,len,j,jlen,opt;

		this.resetFormState();

		if(typeof formId == 'string'){
			// Determine if the argument is a form id or a form name.
			// Note form name usage is deprecated by supported
			// here for legacy reasons.
			oForm = (document.getElementById(formId) || document.forms[formId]);
		}
		else if(typeof formId == 'object'){
			// Treat argument as an HTML form object.
			oForm = formId;
		}
		else{
			return;
		}

		// If the isUpload argument is true, setForm will call createFrame to initialize
		// an iframe as the form target.
		//
		// The argument secureURI is also required by IE in SSL environments
		// where the secureURI string is a fully qualified HTTP path, used to set the source
		// of the iframe, to a stub resource in the same domain.
		if(isUpload){

			// Create iframe in preparation for file upload.
			this.createFrame(secureUri?secureUri:null);

			// Set form reference and file upload properties to true.
			this._isFormSubmit = true;
			this._isFileUpload = true;
			this._formNode = oForm;

			return;

		}

		// Iterate over the form elements collection to construct the
		// label-value pairs.
		for (i=0,len=oForm.elements.length; i<len; ++i){
			oElement  = oForm.elements[i];
			oDisabled = oElement.disabled;
            oName     = oElement.name;

			// Do not submit fields that are disabled or
			// do not have a name attribute value.
			if(!oDisabled && oName)
			{
                oName  = encodeURIComponent(oName)+'=';
                oValue = encodeURIComponent(oElement.value);

				switch(oElement.type)
				{
                    // Safari, Opera, FF all default opt.value from .text if
                    // value attribute not specified in markup
					case 'select-one':
                        if (oElement.selectedIndex > -1) {
                            opt = oElement.options[oElement.selectedIndex];
                            data[item++] = oName + encodeURIComponent(
                                (opt.attributes.value && opt.attributes.value.specified) ? opt.value : opt.text);
                        }
                        break;
					case 'select-multiple':
                        if (oElement.selectedIndex > -1) {
                            for(j=oElement.selectedIndex, jlen=oElement.options.length; j<jlen; ++j){
                                opt = oElement.options[j];
                                if (opt.selected) {
                                    data[item++] = oName + encodeURIComponent(
                                        (opt.attributes.value && opt.attributes.value.specified) ? opt.value : opt.text);
                                }
                            }
                        }
						break;
					case 'radio':
					case 'checkbox':
						if(oElement.checked){
                            data[item++] = oName + oValue;
						}
						break;
					case 'file':
						// stub case as XMLHttpRequest will only send the file path as a string.
					case undefined:
						// stub case for fieldset element which returns undefined.
					case 'reset':
						// stub case for input type reset button.
					case 'button':
						// stub case for input type button elements.
						break;
					case 'submit':
						if(hasSubmit === false){
							if(this._hasSubmitListener && this._submitElementValue){
                                data[item++] = this._submitElementValue;
							}
							hasSubmit = true;
						}
						break;
					default:
                        data[item++] = oName + oValue;
				}
			}
		}

		this._isFormSubmit = true;
		this._sFormData = data.join('&');


		this.initHeader('Content-Type', this._default_form_header);

		return this._sFormData;
	},

  /**
   * @description Resets HTML form properties when an HTML form or HTML form
   * with file upload transaction is sent.
   * @method resetFormState
   * @private
   * @static
   * @return {void}
   */
	resetFormState:function(){
		this._isFormSubmit = false;
		this._isFileUpload = false;
		this._formNode = null;
		this._sFormData = "";
	},

  /**
   * @description Creates an iframe to be used for form file uploads.  It is remove from the
   * document upon completion of the upload transaction.
   * @method createFrame
   * @private
   * @static
   * @param {string} optional qualified path of iframe resource for SSL in IE.
   * @return {void}
   */
	createFrame:function(secureUri){

		// IE does not allow the setting of id and name attributes as object
		// properties via createElement().  A different iframe creation
		// pattern is required for IE.
		var frameId = 'yuiIO' + this._transaction_id;
		var io;
		if(YAHOO.env.ua.ie){
			io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');

			// IE will throw a security exception in an SSL environment if the
			// iframe source is undefined.
			if(typeof secureUri == 'boolean'){
				io.src = 'javascript:false';
			}
		}
		else{
			io = document.createElement('iframe');
			io.id = frameId;
			io.name = frameId;
		}

		io.style.position = 'absolute';
		io.style.top = '-1000px';
		io.style.left = '-1000px';

		document.body.appendChild(io);
	},

  /**
   * @description Parses the POST data and creates hidden form elements
   * for each key-value, and appends them to the HTML form object.
   * @method appendPostData
   * @private
   * @static
   * @param {string} postData The HTTP POST data
   * @return {array} formElements Collection of hidden fields.
   */
	appendPostData:function(postData)
	{
		var formElements = [],
			postMessage = postData.split('&'),
			i, delimitPos;
		for(i=0; i < postMessage.length; i++){
			delimitPos = postMessage[i].indexOf('=');
			if(delimitPos != -1){
				formElements[i] = document.createElement('input');
				formElements[i].type = 'hidden';
				formElements[i].name = decodeURIComponent(postMessage[i].substring(0,delimitPos));
				formElements[i].value = decodeURIComponent(postMessage[i].substring(delimitPos+1));
				this._formNode.appendChild(formElements[i]);
			}
		}

		return formElements;
	},

  /**
   * @description Uploads HTML form, inclusive of files/attachments, using the
   * iframe created in createFrame to facilitate the transaction.
   * @method uploadFile
   * @private
   * @static
   * @param {int} id The transaction id.
   * @param {object} callback User-defined callback object.
   * @param {string} uri Fully qualified path of resource.
   * @param {string} postData POST data to be submitted in addition to HTML form.
   * @return {void}
   */
	uploadFile:function(o, callback, uri, postData){

		// Each iframe has an id prefix of "yuiIO" followed
		// by the unique transaction id.
		var frameId = 'yuiIO' + o.tId,
		    uploadEncoding = 'multipart/form-data',
		    io = document.getElementById(frameId),
		    oConn = this,
			args = (callback && callback.argument)?callback.argument:null,
            oElements,i,prop,obj;

		// Track original HTML form attribute values.
		var rawFormAttributes =
		{
			action:this._formNode.getAttribute('action'),
			method:this._formNode.getAttribute('method'),
			target:this._formNode.getAttribute('target')
		};

		// Initialize the HTML form properties in case they are
		// not defined in the HTML form.
		this._formNode.setAttribute('action', uri);
		this._formNode.setAttribute('method', 'POST');
		this._formNode.setAttribute('target', frameId);

		if(YAHOO.env.ua.ie){
			// IE does not respect property enctype for HTML forms.
			// Instead it uses the property - "encoding".
			this._formNode.setAttribute('encoding', uploadEncoding);
		}
		else{
			this._formNode.setAttribute('enctype', uploadEncoding);
		}

		if(postData){
			oElements = this.appendPostData(postData);
		}

		// Start file upload.
		this._formNode.submit();

		// Fire global custom event -- startEvent
		this.startEvent.fire(o, args);

		if(o.startEvent){
			// Fire transaction custom event -- startEvent
			o.startEvent.fire(o, args);
		}

		// Start polling if a callback is present and the timeout
		// property has been defined.
		if(callback && callback.timeout){
			this._timeOut[o.tId] = window.setTimeout(function(){ oConn.abort(o, callback, true); }, callback.timeout);
		}

		// Remove HTML elements created by appendPostData
		if(oElements && oElements.length > 0){
			for(i=0; i < oElements.length; i++){
				this._formNode.removeChild(oElements[i]);
			}
		}

		// Restore HTML form attributes to their original
		// values prior to file upload.
		for(prop in rawFormAttributes){
			if(YAHOO.lang.hasOwnProperty(rawFormAttributes, prop)){
				if(rawFormAttributes[prop]){
					this._formNode.setAttribute(prop, rawFormAttributes[prop]);
				}
				else{
					this._formNode.removeAttribute(prop);
				}
			}
		}

		// Reset HTML form state properties.
		this.resetFormState();

		// Create the upload callback handler that fires when the iframe
		// receives the load event.  Subsequently, the event handler is detached
		// and the iframe removed from the document.
		var uploadCallback = function()
		{
			if(callback && callback.timeout){
				window.clearTimeout(oConn._timeOut[o.tId]);
				delete oConn._timeOut[o.tId];
			}

			// Fire global custom event -- completeEvent
			oConn.completeEvent.fire(o, args);

			if(o.completeEvent){
				// Fire transaction custom event -- completeEvent
				o.completeEvent.fire(o, args);
			}

			obj = {
			    tId : o.tId,
			    argument : callback.argument
            };

			try
			{
				// responseText and responseXML will be populated with the same data from the iframe.
				// Since the HTTP headers cannot be read from the iframe
				obj.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:io.contentWindow.document.documentElement.textContent;
				obj.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;
			}
			catch(e){}

			if(callback && callback.upload){
				if(!callback.scope){
					callback.upload(obj);
				}
				else{
					callback.upload.apply(callback.scope, [obj]);
				}
			}

			// Fire global custom event -- uploadEvent
			oConn.uploadEvent.fire(obj);

			if(o.uploadEvent){
				// Fire transaction custom event -- uploadEvent
				o.uploadEvent.fire(obj);
			}

			YAHOO.util.Event.removeListener(io, "load", uploadCallback);

			setTimeout(
				function(){
					document.body.removeChild(io);
					oConn.releaseObject(o);
				}, 100);
		};

		// Bind the onload handler to the iframe to detect the file upload response.
		YAHOO.util.Event.addListener(io, "load", uploadCallback);
	},

  /**
   * @description Method to terminate a transaction, if it has not reached readyState 4.
   * @method abort
   * @public
   * @static
   * @param {object} o The connection object returned by asyncRequest.
   * @param {object} callback  User-defined callback object.
   * @param {string} isTimeout boolean to indicate if abort resulted from a callback timeout.
   * @return {boolean}
   */
	abort:function(o, callback, isTimeout)
	{
		var abortStatus;
		var args = (callback && callback.argument)?callback.argument:null;


		if(o && o.conn){
			if(this.isCallInProgress(o)){
				// Issue abort request
				o.conn.abort();

				window.clearInterval(this._poll[o.tId]);
				delete this._poll[o.tId];

				if(isTimeout){
					window.clearTimeout(this._timeOut[o.tId]);
					delete this._timeOut[o.tId];
				}

				abortStatus = true;
			}
		}
		else if(o && o.isUpload === true){
			var frameId = 'yuiIO' + o.tId;
			var io = document.getElementById(frameId);

			if(io){
				// Remove all listeners on the iframe prior to
				// its destruction.
				YAHOO.util.Event.removeListener(io, "load");
				// Destroy the iframe facilitating the transaction.
				document.body.removeChild(io);

				if(isTimeout){
					window.clearTimeout(this._timeOut[o.tId]);
					delete this._timeOut[o.tId];
				}

				abortStatus = true;
			}
		}
		else{
			abortStatus = false;
		}

		if(abortStatus === true){
			// Fire global custom event -- abortEvent
			this.abortEvent.fire(o, args);

			if(o.abortEvent){
				// Fire transaction custom event -- abortEvent
				o.abortEvent.fire(o, args);
			}

			this.handleTransactionResponse(o, callback, true);
		}

		return abortStatus;
	},

  /**
   * @description Determines if the transaction is still being processed.
   * @method isCallInProgress
   * @public
   * @static
   * @param {object} o The connection object returned by asyncRequest
   * @return {boolean}
   */
	isCallInProgress:function(o)
	{
		// if the XHR object assigned to the transaction has not been dereferenced,
		// then check its readyState status.  Otherwise, return false.
		if(o && o.conn){
			return o.conn.readyState !== 4 && o.conn.readyState !== 0;
		}
		else if(o && o.isUpload === true){
			var frameId = 'yuiIO' + o.tId;
			return document.getElementById(frameId)?true:false;
		}
		else{
			return false;
		}
	},

  /**
   * @description Dereference the XHR instance and the connection object after the transaction is completed.
   * @method releaseObject
   * @private
   * @static
   * @param {object} o The connection object
   * @return {void}
   */
	releaseObject:function(o)
	{
		if(o && o.conn){
			//dereference the XHR instance.
			o.conn = null;


			//dereference the connection object.
			o = null;
		}
	}
};
YAHOO.register("connection", YAHOO.util.Connect, {version: "2.7.0", build: "1796"});
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/


/**
* @module menu
* @description <p>The Menu family of components features a collection of 
* controls that make it easy to add menus to your website or web application.  
* With the Menu Controls you can create website fly-out menus, customized 
* context menus, or application-style menu bars with just a small amount of 
* scripting.</p><p>The Menu family of controls features:</p>
* <ul>
*    <li>Keyboard and mouse navigation.</li>
*    <li>A rich event model that provides access to all of a menu's 
*    interesting moments.</li>
*    <li>Support for 
*    <a href="http://en.wikipedia.org/wiki/Progressive_Enhancement">Progressive
*    Enhancement</a>; Menus can be created from simple, 
*    semantic markup on the page or purely through JavaScript.</li>
* </ul>
* @title Menu
* @namespace YAHOO.widget
* @requires Event, Dom, Container
*/
(function () {

    var _DIV = "DIV",
    	_HD = "hd",
    	_BD = "bd",
    	_FT = "ft",
    	_LI = "LI",
    	_DISABLED = "disabled",
		_MOUSEOVER = "mouseover",
		_MOUSEOUT = "mouseout",
		_MOUSEDOWN = "mousedown",
		_MOUSEUP = "mouseup",
		_FOCUS = YAHOO.env.ua.ie ? "focusin" : "focus",		
		_CLICK = "click",
		_KEYDOWN = "keydown",
		_KEYUP = "keyup",
		_KEYPRESS = "keypress",
		_CLICK_TO_HIDE = "clicktohide",
		_POSITION = "position", 
		_DYNAMIC = "dynamic",
		_SHOW_DELAY = "showdelay",
		_SELECTED = "selected",
		_VISIBLE = "visible",
		_UL = "UL",
		_MENUMANAGER = "MenuManager",
    	
    
    	Dom = YAHOO.util.Dom,
        Event = YAHOO.util.Event,
        Lang = YAHOO.lang;


    /**
    * Singleton that manages a collection of all menus and menu items.  Listens 
    * for DOM events at the document level and dispatches the events to the 
    * corresponding menu or menu item.
    *
    * @namespace YAHOO.widget
    * @class MenuManager
    * @static
    */
    YAHOO.widget.MenuManager = function () {
    
        // Private member variables
    
    
        // Flag indicating if the DOM event handlers have been attached
    
        var m_bInitializedEventHandlers = false,
    
    
        // Collection of menus

        m_oMenus = {},


        // Collection of visible menus
    
        m_oVisibleMenus = {},
    
    
        //  Collection of menu items 

        m_oItems = {},


        // Map of DOM event types to their equivalent CustomEvent types
        
        m_oEventTypes = {
            "click": "clickEvent",
            "mousedown": "mouseDownEvent",
            "mouseup": "mouseUpEvent",
            "mouseover": "mouseOverEvent",
            "mouseout": "mouseOutEvent",
            "keydown": "keyDownEvent",
            "keyup": "keyUpEvent",
            "keypress": "keyPressEvent",
            "focus": "focusEvent",
            "focusin": "focusEvent",
            "blur": "blurEvent",
            "focusout": "blurEvent"
        },


    	// The element in the DOM that currently has focus
    
		m_oFocusedElement = null,
    
    
        m_oFocusedMenuItem = null;
    
    
    
        // Private methods
    
    
        /**
        * @method getMenuRootElement
        * @description Finds the root DIV node of a menu or the root LI node of 
        * a menu item.
        * @private
        * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-58190037">HTMLElement</a>} p_oElement Object 
        * specifying an HTML element.
        */
        function getMenuRootElement(p_oElement) {
        
            var oParentNode,
            	returnVal;
    
            if (p_oElement && p_oElement.tagName) {
            
                switch (p_oElement.tagName.toUpperCase()) {
                        
                case _DIV:
    
                    oParentNode = p_oElement.parentNode;
    
                    // Check if the DIV is the inner "body" node of a menu

                    if ((
                            Dom.hasClass(p_oElement, _HD) ||
                            Dom.hasClass(p_oElement, _BD) ||
                            Dom.hasClass(p_oElement, _FT)
                        ) && 
                        oParentNode && 
                        oParentNode.tagName && 
                        oParentNode.tagName.toUpperCase() == _DIV) {
                    
                        returnVal = oParentNode;
                    
                    }
                    else {
                    
                        returnVal = p_oElement;
                    
                    }
                
                    break;

                case _LI:
    
                    returnVal = p_oElement;
                    
                    break;

                default:
    
                    oParentNode = p_oElement.parentNode;
    
                    if (oParentNode) {
                    
                        returnVal = getMenuRootElement(oParentNode);
                    
                    }
                
                    break;
                
                }
    
            }
            
            return returnVal;
            
        }
    
    
    
        // Private event handlers
    
    
        /**
        * @method onDOMEvent
        * @description Generic, global event handler for all of a menu's 
        * DOM-based events.  This listens for events against the document 
        * object.  If the target of a given event is a member of a menu or 
        * menu item's DOM, the instance's corresponding Custom Event is fired.
        * @private
        * @param {Event} p_oEvent Object representing the DOM event object  
        * passed back by the event utility (YAHOO.util.Event).
        */
        function onDOMEvent(p_oEvent) {
    
            // Get the target node of the DOM event
        
            var oTarget = Event.getTarget(p_oEvent),
                
            // See if the target of the event was a menu, or a menu item
    
            oElement = getMenuRootElement(oTarget),
            sCustomEventType,
            sTagName,
            sId,
            oMenuItem,
            oMenu; 
    
    
            if (oElement) {
    
                sTagName = oElement.tagName.toUpperCase();
        
                if (sTagName == _LI) {
            
                    sId = oElement.id;
            
                    if (sId && m_oItems[sId]) {
            
                        oMenuItem = m_oItems[sId];
                        oMenu = oMenuItem.parent;
            
                    }
                
                }
                else if (sTagName == _DIV) {
                
                    if (oElement.id) {
                    
                        oMenu = m_oMenus[oElement.id];
                    
                    }
                
                }
    
            }
    
    
            if (oMenu) {
    
                sCustomEventType = m_oEventTypes[p_oEvent.type];
    
    
                // Fire the Custom Event that corresponds the current DOM event    
        
                if (oMenuItem && !oMenuItem.cfg.getProperty(_DISABLED)) {
    
                    oMenuItem[sCustomEventType].fire(p_oEvent);                   
    
                }
        
                oMenu[sCustomEventType].fire(p_oEvent, oMenuItem);
            
            }
            else if (p_oEvent.type == _MOUSEDOWN) {
    
                /*
                    If the target of the event wasn't a menu, hide all 
                    dynamically positioned menus
                */
                
                for (var i in m_oVisibleMenus) {
        
                    if (Lang.hasOwnProperty(m_oVisibleMenus, i)) {
        
                        oMenu = m_oVisibleMenus[i];

                        if (oMenu.cfg.getProperty(_CLICK_TO_HIDE) && 
                            !(oMenu instanceof YAHOO.widget.MenuBar) && 
                            oMenu.cfg.getProperty(_POSITION) == _DYNAMIC) {
        
                            oMenu.hide();
        
                        }
                        else {
                            
							if (oMenu.cfg.getProperty(_SHOW_DELAY) > 0) {
							
								oMenu._cancelShowDelay();
							
							}


							if (oMenu.activeItem) {
						
								oMenu.activeItem.blur();
								oMenu.activeItem.cfg.setProperty(_SELECTED, false);
						
								oMenu.activeItem = null;            
						
							}
        
                        }
        
                    }
        
                } 
    
            }
            else if (p_oEvent.type == _FOCUS) {
            
            	m_oFocusedElement = oTarget;
            
            }
            
        }
    
    
        /**
        * @method onMenuDestroy
        * @description "destroy" event handler for a menu.
        * @private
        * @param {String} p_sType String representing the name of the event 
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        * @param {YAHOO.widget.Menu} p_oMenu The menu that fired the event.
        */
        function onMenuDestroy(p_sType, p_aArgs, p_oMenu) {
    
            if (m_oMenus[p_oMenu.id]) {
    
                this.removeMenu(p_oMenu);
    
            }
    
        }
    
    
        /**
        * @method onMenuFocus
        * @description "focus" event handler for a MenuItem instance.
        * @private
        * @param {String} p_sType String representing the name of the event 
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        function onMenuFocus(p_sType, p_aArgs) {
    
            var oItem = p_aArgs[1];
    
            if (oItem) {
    
                m_oFocusedMenuItem = oItem;
            
            }
    
        }
    
    
        /**
        * @method onMenuBlur
        * @description "blur" event handler for a MenuItem instance.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        function onMenuBlur(p_sType, p_aArgs) {
    
            m_oFocusedMenuItem = null;
    
        }
    

        /**
        * @method onMenuHide
        * @description "hide" event handler for a Menu instance.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
		* @param <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
		* level-one-html.html#ID-58190037">p_oFocusedElement</a> The HTML element that had focus
		* prior to the Menu being made visible
        */    
    	function onMenuHide(p_sType, p_aArgs, p_oFocusedElement) {

			/*
				Restore focus to the element in the DOM that had focus prior to the Menu 
				being made visible
			*/

			if (p_oFocusedElement && p_oFocusedElement.focus) {
			
				try {
					p_oFocusedElement.focus();
				}
				catch(ex) {
				}
			
			}
			
    		this.hideEvent.unsubscribe(onMenuHide, p_oFocusedElement);
    	
    	}
    

        /**
        * @method onMenuShow
        * @description "show" event handler for a MenuItem instance.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */    	
    	function onMenuShow(p_sType, p_aArgs) {

			/*
				Dynamically positioned, root Menus focus themselves when visible, and will then, 
				when hidden, restore focus to the UI control that had focus before the Menu was 
				made visible
			*/ 

			if (this === this.getRoot() && this.cfg.getProperty(_POSITION) === _DYNAMIC) {
    	
				this.hideEvent.subscribe(onMenuHide, m_oFocusedElement);
				this.focus();
			
			}
    	
    	}    
    
    
        /**
        * @method onMenuVisibleConfigChange
        * @description Event handler for when the "visible" configuration  
        * property of a Menu instance changes.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        function onMenuVisibleConfigChange(p_sType, p_aArgs) {
    
            var bVisible = p_aArgs[0],
                sId = this.id;
            
            if (bVisible) {
    
                m_oVisibleMenus[sId] = this;
                
            
            }
            else if (m_oVisibleMenus[sId]) {
            
                delete m_oVisibleMenus[sId];
                
            
            }
        
        }
    
    
        /**
        * @method onItemDestroy
        * @description "destroy" event handler for a MenuItem instance.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        function onItemDestroy(p_sType, p_aArgs) {
    
            removeItem(this);
    
        }


        /**
        * @method removeItem
        * @description Removes a MenuItem instance from the MenuManager's collection of MenuItems.
        * @private
        * @param {MenuItem} p_oMenuItem The MenuItem instance to be removed.
        */    
        function removeItem(p_oMenuItem) {

            var sId = p_oMenuItem.id;
    
            if (sId && m_oItems[sId]) {
    
                if (m_oFocusedMenuItem == p_oMenuItem) {
    
                    m_oFocusedMenuItem = null;
    
                }
    
                delete m_oItems[sId];
                
                p_oMenuItem.destroyEvent.unsubscribe(onItemDestroy);
    
    
            }

        }
    
    
        /**
        * @method onItemAdded
        * @description "itemadded" event handler for a Menu instance.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        function onItemAdded(p_sType, p_aArgs) {
    
            var oItem = p_aArgs[0],
                sId;
    
            if (oItem instanceof YAHOO.widget.MenuItem) { 
    
                sId = oItem.id;
        
                if (!m_oItems[sId]) {
            
                    m_oItems[sId] = oItem;
        
                    oItem.destroyEvent.subscribe(onItemDestroy);
        
        
                }
    
            }
        
        }
    
    
        return {
    
            // Privileged methods
    
    
            /**
            * @method addMenu
            * @description Adds a menu to the collection of known menus.
            * @param {YAHOO.widget.Menu} p_oMenu Object specifying the Menu  
            * instance to be added.
            */
            addMenu: function (p_oMenu) {
    
                var oDoc;
    
                if (p_oMenu instanceof YAHOO.widget.Menu && p_oMenu.id && 
                    !m_oMenus[p_oMenu.id]) {
        
                    m_oMenus[p_oMenu.id] = p_oMenu;
                
            
                    if (!m_bInitializedEventHandlers) {
            
                        oDoc = document;
                
                        Event.on(oDoc, _MOUSEOVER, onDOMEvent, this, true);
                        Event.on(oDoc, _MOUSEOUT, onDOMEvent, this, true);
                        Event.on(oDoc, _MOUSEDOWN, onDOMEvent, this, true);
                        Event.on(oDoc, _MOUSEUP, onDOMEvent, this, true);
                        Event.on(oDoc, _CLICK, onDOMEvent, this, true);
                        Event.on(oDoc, _KEYDOWN, onDOMEvent, this, true);
                        Event.on(oDoc, _KEYUP, onDOMEvent, this, true);
                        Event.on(oDoc, _KEYPRESS, onDOMEvent, this, true);
    
						Event.onFocus(oDoc, onDOMEvent, this, true);
						Event.onBlur(oDoc, onDOMEvent, this, true);						
    
                        m_bInitializedEventHandlers = true;
                        
            
                    }
            
                    p_oMenu.cfg.subscribeToConfigEvent(_VISIBLE, onMenuVisibleConfigChange);
                    p_oMenu.destroyEvent.subscribe(onMenuDestroy, p_oMenu, this);
                    p_oMenu.itemAddedEvent.subscribe(onItemAdded);
                    p_oMenu.focusEvent.subscribe(onMenuFocus);
                    p_oMenu.blurEvent.subscribe(onMenuBlur);
                    p_oMenu.showEvent.subscribe(onMenuShow);
        
        
                }
        
            },
    
        
            /**
            * @method removeMenu
            * @description Removes a menu from the collection of known menus.
            * @param {YAHOO.widget.Menu} p_oMenu Object specifying the Menu  
            * instance to be removed.
            */
            removeMenu: function (p_oMenu) {
    
                var sId,
                    aItems,
                    i;
        
                if (p_oMenu) {
    
                    sId = p_oMenu.id;
        
                    if ((sId in m_oMenus) && (m_oMenus[sId] == p_oMenu)) {

                        // Unregister each menu item

                        aItems = p_oMenu.getItems();

                        if (aItems && aItems.length > 0) {

                            i = aItems.length - 1;

                            do {

                                removeItem(aItems[i]);

                            }
                            while (i--);

                        }


                        // Unregister the menu

                        delete m_oMenus[sId];
            
        

                        /*
                             Unregister the menu from the collection of 
                             visible menus
                        */

                        if ((sId in m_oVisibleMenus) && (m_oVisibleMenus[sId] == p_oMenu)) {
            
                            delete m_oVisibleMenus[sId];
                            
       
                        }


                        // Unsubscribe event listeners

                        if (p_oMenu.cfg) {

                            p_oMenu.cfg.unsubscribeFromConfigEvent(_VISIBLE, 
                                onMenuVisibleConfigChange);
                            
                        }

                        p_oMenu.destroyEvent.unsubscribe(onMenuDestroy, 
                            p_oMenu);
                
                        p_oMenu.itemAddedEvent.unsubscribe(onItemAdded);
                        p_oMenu.focusEvent.unsubscribe(onMenuFocus);
                        p_oMenu.blurEvent.unsubscribe(onMenuBlur);

                    }
                
                }
    
            },
        
        
            /**
            * @method hideVisible
            * @description Hides all visible, dynamically positioned menus 
            * (excluding instances of YAHOO.widget.MenuBar).
            */
            hideVisible: function () {
        
                var oMenu;
        
                for (var i in m_oVisibleMenus) {
        
                    if (Lang.hasOwnProperty(m_oVisibleMenus, i)) {
        
                        oMenu = m_oVisibleMenus[i];
        
                        if (!(oMenu instanceof YAHOO.widget.MenuBar) && 
                            oMenu.cfg.getProperty(_POSITION) == _DYNAMIC) {
        
                            oMenu.hide();
        
                        }
        
                    }
        
                }        
    
            },


            /**
            * @method getVisible
            * @description Returns a collection of all visible menus registered
            * with the menu manger.
            * @return {Object}
            */
            getVisible: function () {
            
                return m_oVisibleMenus;
            
            },

    
            /**
            * @method getMenus
            * @description Returns a collection of all menus registered with the 
            * menu manger.
            * @return {Object}
            */
            getMenus: function () {
    
                return m_oMenus;
            
            },
    
    
            /**
            * @method getMenu
            * @description Returns a menu with the specified id.
            * @param {String} p_sId String specifying the id of the 
            * <code>&#60;div&#62;</code> element representing the menu to
            * be retrieved.
            * @return {YAHOO.widget.Menu}
            */
            getMenu: function (p_sId) {
                
                var returnVal;
                
                if (p_sId in m_oMenus) {
                
					returnVal = m_oMenus[p_sId];
				
				}
            
            	return returnVal;
            
            },
    
    
            /**
            * @method getMenuItem
            * @description Returns a menu item with the specified id.
            * @param {String} p_sId String specifying the id of the 
            * <code>&#60;li&#62;</code> element representing the menu item to
            * be retrieved.
            * @return {YAHOO.widget.MenuItem}
            */
            getMenuItem: function (p_sId) {
    
    			var returnVal;
    
    			if (p_sId in m_oItems) {
    
					returnVal = m_oItems[p_sId];
				
				}
				
				return returnVal;
            
            },


            /**
            * @method getMenuItemGroup
            * @description Returns an array of menu item instances whose 
            * corresponding <code>&#60;li&#62;</code> elements are child 
            * nodes of the <code>&#60;ul&#62;</code> element with the 
            * specified id.
            * @param {String} p_sId String specifying the id of the 
            * <code>&#60;ul&#62;</code> element representing the group of 
            * menu items to be retrieved.
            * @return {Array}
            */
            getMenuItemGroup: function (p_sId) {

                var oUL = Dom.get(p_sId),
                    aItems,
                    oNode,
                    oItem,
                    sId,
                    returnVal;
    

                if (oUL && oUL.tagName && oUL.tagName.toUpperCase() == _UL) {

                    oNode = oUL.firstChild;

                    if (oNode) {

                        aItems = [];
                        
                        do {

                            sId = oNode.id;

                            if (sId) {
                            
                                oItem = this.getMenuItem(sId);
                                
                                if (oItem) {
                                
                                    aItems[aItems.length] = oItem;
                                
                                }
                            
                            }
                        
                        }
                        while ((oNode = oNode.nextSibling));


                        if (aItems.length > 0) {

                            returnVal = aItems;
                        
                        }

                    }
                
                }

				return returnVal;
            
            },

    
            /**
            * @method getFocusedMenuItem
            * @description Returns a reference to the menu item that currently 
            * has focus.
            * @return {YAHOO.widget.MenuItem}
            */
            getFocusedMenuItem: function () {
    
                return m_oFocusedMenuItem;
    
            },
    
    
            /**
            * @method getFocusedMenu
            * @description Returns a reference to the menu that currently 
            * has focus.
            * @return {YAHOO.widget.Menu}
            */
            getFocusedMenu: function () {

				var returnVal;
    
                if (m_oFocusedMenuItem) {
    
                    returnVal = m_oFocusedMenuItem.parent.getRoot();
                
                }
    
    			return returnVal;
    
            },
    
        
            /**
            * @method toString
            * @description Returns a string representing the menu manager.
            * @return {String}
            */
            toString: function () {
            
                return _MENUMANAGER;
            
            }
    
        };
    
    }();

})();



(function () {

	var Lang = YAHOO.lang,

	// String constants
	
		_MENU = "Menu",
		_DIV_UPPERCASE = "DIV",
		_DIV_LOWERCASE = "div",
		_ID = "id",
		_SELECT = "SELECT",
		_XY = "xy",
		_Y = "y",
		_UL_UPPERCASE = "UL",
		_UL_LOWERCASE = "ul",
		_FIRST_OF_TYPE = "first-of-type",
		_LI = "LI",
		_OPTGROUP = "OPTGROUP",
		_OPTION = "OPTION",
		_DISABLED = "disabled",
		_NONE = "none",
		_SELECTED = "selected",
		_GROUP_INDEX = "groupindex",
		_INDEX = "index",
		_SUBMENU = "submenu",
		_VISIBLE = "visible",
		_HIDE_DELAY = "hidedelay",
		_POSITION = "position",
		_DYNAMIC = "dynamic",
		_STATIC = "static",
		_DYNAMIC_STATIC = _DYNAMIC + "," + _STATIC,
		_WINDOWS = "windows",
		_URL = "url",
		_HASH = "#",
		_TARGET = "target",
		_MAX_HEIGHT = "maxheight",
        _TOP_SCROLLBAR = "topscrollbar",
        _BOTTOM_SCROLLBAR = "bottomscrollbar",
        _UNDERSCORE = "_",
		_TOP_SCROLLBAR_DISABLED = _TOP_SCROLLBAR + _UNDERSCORE + _DISABLED,
		_BOTTOM_SCROLLBAR_DISABLED = _BOTTOM_SCROLLBAR + _UNDERSCORE + _DISABLED,
		_MOUSEMOVE = "mousemove",
		_SHOW_DELAY = "showdelay",
		_SUBMENU_HIDE_DELAY = "submenuhidedelay",
		_IFRAME = "iframe",
		_CONSTRAIN_TO_VIEWPORT = "constraintoviewport",
		_PREVENT_CONTEXT_OVERLAP = "preventcontextoverlap",
		_SUBMENU_ALIGNMENT = "submenualignment",
		_AUTO_SUBMENU_DISPLAY = "autosubmenudisplay",
		_CLICK_TO_HIDE = "clicktohide",
		_CONTAINER = "container",
		_SCROLL_INCREMENT = "scrollincrement",
		_MIN_SCROLL_HEIGHT = "minscrollheight",
		_CLASSNAME = "classname",
		_SHADOW = "shadow",
		_KEEP_OPEN = "keepopen",
		_HD = "hd",
		_HAS_TITLE = "hastitle",
		_CONTEXT = "context",
		_EMPTY_STRING = "",
		_MOUSEDOWN = "mousedown",
		_KEYDOWN = "keydown",
		_HEIGHT = "height",
		_WIDTH = "width",
		_PX = "px",
		_EFFECT = "effect",
		_MONITOR_RESIZE = "monitorresize",
		_DISPLAY = "display",
		_BLOCK = "block",
		_VISIBILITY = "visibility",
		_ABSOLUTE = "absolute",
		_ZINDEX = "zindex",
		_YUI_MENU_BODY_SCROLLED = "yui-menu-body-scrolled",
		_NON_BREAKING_SPACE = "&#32;",
		_SPACE = " ",
		_MOUSEOVER = "mouseover",
		_MOUSEOUT = "mouseout",
        _ITEM_ADDED = "itemAdded",
        _ITEM_REMOVED = "itemRemoved",
        _HIDDEN = "hidden",
        _YUI_MENU_SHADOW = "yui-menu-shadow",
        _YUI_MENU_SHADOW_VISIBLE = _YUI_MENU_SHADOW + "-visible",
        _YUI_MENU_SHADOW_YUI_MENU_SHADOW_VISIBLE = _YUI_MENU_SHADOW + _SPACE + _YUI_MENU_SHADOW_VISIBLE;


/**
* The Menu class creates a container that holds a vertical list representing 
* a set of options or commands.  Menu is the base class for all 
* menu containers. 
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;div&#62;</code> element of the menu.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;select&#62;</code> element to be used as the data source 
* for the menu.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-22445964">HTMLDivElement</a>} p_oElement Object 
* specifying the <code>&#60;div&#62;</code> element of the menu.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-94282980">HTMLSelectElement</a>} p_oElement 
* Object specifying the <code>&#60;select&#62;</code> element to be used as 
* the data source for the menu.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the menu. See configuration class documentation for 
* more details.
* @namespace YAHOO.widget
* @class Menu
* @constructor
* @extends YAHOO.widget.Overlay
*/
YAHOO.widget.Menu = function (p_oElement, p_oConfig) {

    if (p_oConfig) {

        this.parent = p_oConfig.parent;
        this.lazyLoad = p_oConfig.lazyLoad || p_oConfig.lazyload;
        this.itemData = p_oConfig.itemData || p_oConfig.itemdata;

    }


    YAHOO.widget.Menu.superclass.constructor.call(this, p_oElement, p_oConfig);

};



/**
* @method checkPosition
* @description Checks to make sure that the value of the "position" property 
* is one of the supported strings. Returns true if the position is supported.
* @private
* @param {Object} p_sPosition String specifying the position of the menu.
* @return {Boolean}
*/
function checkPosition(p_sPosition) {

	var returnVal = false;

    if (Lang.isString(p_sPosition)) {

        returnVal = (_DYNAMIC_STATIC.indexOf((p_sPosition.toLowerCase())) != -1);

    }

	return returnVal;

}


var Dom = YAHOO.util.Dom,
    Event = YAHOO.util.Event,
    Module = YAHOO.widget.Module,
    Overlay = YAHOO.widget.Overlay,
    Menu = YAHOO.widget.Menu,
    MenuManager = YAHOO.widget.MenuManager,
    CustomEvent = YAHOO.util.CustomEvent,
    UA = YAHOO.env.ua,
    
    m_oShadowTemplate,

	EVENT_TYPES = [
    
		["mouseOverEvent", _MOUSEOVER],
		["mouseOutEvent", _MOUSEOUT],
		["mouseDownEvent", _MOUSEDOWN],
		["mouseUpEvent", "mouseup"],
		["clickEvent", "click"],
		["keyPressEvent", "keypress"],
		["keyDownEvent", _KEYDOWN],
		["keyUpEvent", "keyup"],
		["focusEvent", "focus"],
		["blurEvent", "blur"],
		["itemAddedEvent", _ITEM_ADDED],
		["itemRemovedEvent", _ITEM_REMOVED]

	],

	VISIBLE_CONFIG =  { 
		key: _VISIBLE, 
		value: false, 
		validator: Lang.isBoolean
	}, 

	CONSTRAIN_TO_VIEWPORT_CONFIG =  {
		key: _CONSTRAIN_TO_VIEWPORT, 
		value: true, 
		validator: Lang.isBoolean, 
		supercedes: [_IFRAME,"x",_Y,_XY]
	}, 

	PREVENT_CONTEXT_OVERLAP_CONFIG =  {
		key: _PREVENT_CONTEXT_OVERLAP,
		value: true,
		validator: Lang.isBoolean,  
		supercedes: [_CONSTRAIN_TO_VIEWPORT]
	},

	POSITION_CONFIG =  { 
		key: _POSITION, 
		value: _DYNAMIC, 
		validator: checkPosition, 
		supercedes: [_VISIBLE, _IFRAME]
	}, 

	SUBMENU_ALIGNMENT_CONFIG =  { 
		key: _SUBMENU_ALIGNMENT, 
		value: ["tl","tr"]
	},

	AUTO_SUBMENU_DISPLAY_CONFIG =  { 
		key: _AUTO_SUBMENU_DISPLAY, 
		value: true, 
		validator: Lang.isBoolean,
		suppressEvent: true
	}, 

	SHOW_DELAY_CONFIG =  { 
		key: _SHOW_DELAY, 
		value: 250, 
		validator: Lang.isNumber, 
		suppressEvent: true
	}, 

	HIDE_DELAY_CONFIG =  { 
		key: _HIDE_DELAY, 
		value: 0, 
		validator: Lang.isNumber, 
		suppressEvent: true
	}, 

	SUBMENU_HIDE_DELAY_CONFIG =  { 
		key: _SUBMENU_HIDE_DELAY, 
		value: 250, 
		validator: Lang.isNumber,
		suppressEvent: true
	}, 

	CLICK_TO_HIDE_CONFIG =  { 
		key: _CLICK_TO_HIDE, 
		value: true, 
		validator: Lang.isBoolean,
		suppressEvent: true
	},

	CONTAINER_CONFIG =  { 
		key: _CONTAINER,
		suppressEvent: true
	}, 

	SCROLL_INCREMENT_CONFIG =  { 
		key: _SCROLL_INCREMENT, 
		value: 1, 
		validator: Lang.isNumber,
		supercedes: [_MAX_HEIGHT],
		suppressEvent: true
	},

	MIN_SCROLL_HEIGHT_CONFIG =  { 
		key: _MIN_SCROLL_HEIGHT, 
		value: 90, 
		validator: Lang.isNumber,
		supercedes: [_MAX_HEIGHT],
		suppressEvent: true
	},    

	MAX_HEIGHT_CONFIG =  { 
		key: _MAX_HEIGHT, 
		value: 0, 
		validator: Lang.isNumber,
		supercedes: [_IFRAME],
		suppressEvent: true
	}, 

	CLASS_NAME_CONFIG =  { 
		key: _CLASSNAME, 
		value: null, 
		validator: Lang.isString,
		suppressEvent: true
	}, 

	DISABLED_CONFIG =  { 
		key: _DISABLED, 
		value: false, 
		validator: Lang.isBoolean,
		suppressEvent: true
	},
	
	SHADOW_CONFIG =  { 
		key: _SHADOW, 
		value: true, 
		validator: Lang.isBoolean,
		suppressEvent: true,
		supercedes: [_VISIBLE]
	},
	
	KEEP_OPEN_CONFIG = {
		key: _KEEP_OPEN, 
		value: false, 
		validator: Lang.isBoolean
	};



YAHOO.lang.extend(Menu, Overlay, {


// Constants


/**
* @property CSS_CLASS_NAME
* @description String representing the CSS class(es) to be applied to the 
* menu's <code>&#60;div&#62;</code> element.
* @default "yuimenu"
* @final
* @type String
*/
CSS_CLASS_NAME: "yuimenu",


/**
* @property ITEM_TYPE
* @description Object representing the type of menu item to instantiate and 
* add when parsing the child nodes (either <code>&#60;li&#62;</code> element, 
* <code>&#60;optgroup&#62;</code> element or <code>&#60;option&#62;</code>) 
* of the menu's source HTML element.
* @default YAHOO.widget.MenuItem
* @final
* @type YAHOO.widget.MenuItem
*/
ITEM_TYPE: null,


/**
* @property GROUP_TITLE_TAG_NAME
* @description String representing the tagname of the HTML element used to 
* title the menu's item groups.
* @default H6
* @final
* @type String
*/
GROUP_TITLE_TAG_NAME: "h6",


/**
* @property OFF_SCREEN_POSITION
* @description Array representing the default x and y position that a menu 
* should have when it is positioned outside the viewport by the 
* "poistionOffScreen" method.
* @default "-999em"
* @final
* @type String
*/
OFF_SCREEN_POSITION: "-999em",


// Private properties


/** 
* @property _useHideDelay
* @description Boolean indicating if the "mouseover" and "mouseout" event 
* handlers used for hiding the menu via a call to "YAHOO.lang.later" have 
* already been assigned.
* @default false
* @private
* @type Boolean
*/
_useHideDelay: false,


/**
* @property _bHandledMouseOverEvent
* @description Boolean indicating the current state of the menu's 
* "mouseover" event.
* @default false
* @private
* @type Boolean
*/
_bHandledMouseOverEvent: false,


/**
* @property _bHandledMouseOutEvent
* @description Boolean indicating the current state of the menu's
* "mouseout" event.
* @default false
* @private
* @type Boolean
*/
_bHandledMouseOutEvent: false,


/**
* @property _aGroupTitleElements
* @description Array of HTML element used to title groups of menu items.
* @default []
* @private
* @type Array
*/
_aGroupTitleElements: null,


/**
* @property _aItemGroups
* @description Multi-dimensional Array representing the menu items as they
* are grouped in the menu.
* @default []
* @private
* @type Array
*/
_aItemGroups: null,


/**
* @property _aListElements
* @description Array of <code>&#60;ul&#62;</code> elements, each of which is 
* the parent node for each item's <code>&#60;li&#62;</code> element.
* @default []
* @private
* @type Array
*/
_aListElements: null,


/**
* @property _nCurrentMouseX
* @description The current x coordinate of the mouse inside the area of 
* the menu.
* @default 0
* @private
* @type Number
*/
_nCurrentMouseX: 0,


/**
* @property _bStopMouseEventHandlers
* @description Stops "mouseover," "mouseout," and "mousemove" event handlers 
* from executing.
* @default false
* @private
* @type Boolean
*/
_bStopMouseEventHandlers: false,


/**
* @property _sClassName
* @description The current value of the "classname" configuration attribute.
* @default null
* @private
* @type String
*/
_sClassName: null,



// Public properties


/**
* @property lazyLoad
* @description Boolean indicating if the menu's "lazy load" feature is 
* enabled.  If set to "true," initialization and rendering of the menu's 
* items will be deferred until the first time it is made visible.  This 
* property should be set via the constructor using the configuration 
* object literal.
* @default false
* @type Boolean
*/
lazyLoad: false,


/**
* @property itemData
* @description Array of items to be added to the menu.  The array can contain 
* strings representing the text for each item to be created, object literals 
* representing the menu item configuration properties, or MenuItem instances.  
* This property should be set via the constructor using the configuration 
* object literal.
* @default null
* @type Array
*/
itemData: null,


/**
* @property activeItem
* @description Object reference to the item in the menu that has is selected.
* @default null
* @type YAHOO.widget.MenuItem
*/
activeItem: null,


/**
* @property parent
* @description Object reference to the menu's parent menu or menu item.  
* This property can be set via the constructor using the configuration 
* object literal.
* @default null
* @type YAHOO.widget.MenuItem
*/
parent: null,


/**
* @property srcElement
* @description Object reference to the HTML element (either 
* <code>&#60;select&#62;</code> or <code>&#60;div&#62;</code>) used to 
* create the menu.
* @default null
* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-94282980">HTMLSelectElement</a>|<a 
* href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.
* html#ID-22445964">HTMLDivElement</a>
*/
srcElement: null,



// Events


/**
* @event mouseOverEvent
* @description Fires when the mouse has entered the menu.  Passes back 
* the DOM Event object as an argument.
*/


/**
* @event mouseOutEvent
* @description Fires when the mouse has left the menu.  Passes back the DOM 
* Event object as an argument.
* @type YAHOO.util.CustomEvent
*/


/**
* @event mouseDownEvent
* @description Fires when the user mouses down on the menu.  Passes back the 
* DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/


/**
* @event mouseUpEvent
* @description Fires when the user releases a mouse button while the mouse is 
* over the menu.  Passes back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/


/**
* @event clickEvent
* @description Fires when the user clicks the on the menu.  Passes back the 
* DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/


/**
* @event keyPressEvent
* @description Fires when the user presses an alphanumeric key when one of the
* menu's items has focus.  Passes back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/


/**
* @event keyDownEvent
* @description Fires when the user presses a key when one of the menu's items 
* has focus.  Passes back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/


/**
* @event keyUpEvent
* @description Fires when the user releases a key when one of the menu's items 
* has focus.  Passes back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/


/**
* @event itemAddedEvent
* @description Fires when an item is added to the menu.
* @type YAHOO.util.CustomEvent
*/


/**
* @event itemRemovedEvent
* @description Fires when an item is removed to the menu.
* @type YAHOO.util.CustomEvent
*/


/**
* @method init
* @description The Menu class's initialization method. This method is 
* automatically called by the constructor, and sets up all DOM references 
* for pre-existing markup, and creates required markup if it is not 
* already present.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;div&#62;</code> element of the menu.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;select&#62;</code> element to be used as the data source 
* for the menu.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-22445964">HTMLDivElement</a>} p_oElement Object 
* specifying the <code>&#60;div&#62;</code> element of the menu.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-94282980">HTMLSelectElement</a>} p_oElement 
* Object specifying the <code>&#60;select&#62;</code> element to be used as 
* the data source for the menu.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the menu. See configuration class documentation for 
* more details.
*/
init: function (p_oElement, p_oConfig) {

    this._aItemGroups = [];
    this._aListElements = [];
    this._aGroupTitleElements = [];

    if (!this.ITEM_TYPE) {

        this.ITEM_TYPE = YAHOO.widget.MenuItem;

    }


    var oElement;

    if (Lang.isString(p_oElement)) {

        oElement = Dom.get(p_oElement);

    }
    else if (p_oElement.tagName) {

        oElement = p_oElement;

    }


    if (oElement && oElement.tagName) {

        switch(oElement.tagName.toUpperCase()) {
    
            case _DIV_UPPERCASE:

                this.srcElement = oElement;

                if (!oElement.id) {

                    oElement.setAttribute(_ID, Dom.generateId());

                }


                /* 
                    Note: we don't pass the user config in here yet 
                    because we only want it executed once, at the lowest 
                    subclass level.
                */ 
            
                Menu.superclass.init.call(this, oElement);

                this.beforeInitEvent.fire(Menu);

    
            break;
    
            case _SELECT:
    
                this.srcElement = oElement;

    
                /*
                    The source element is not something that we can use 
                    outright, so we need to create a new Overlay

                    Note: we don't pass the user config in here yet 
                    because we only want it executed once, at the lowest 
                    subclass level.
                */ 

                Menu.superclass.init.call(this, Dom.generateId());

                this.beforeInitEvent.fire(Menu);


            break;

        }

    }
    else {

        /* 
            Note: we don't pass the user config in here yet 
            because we only want it executed once, at the lowest 
            subclass level.
        */ 
    
        Menu.superclass.init.call(this, p_oElement);

        this.beforeInitEvent.fire(Menu);


    }


    if (this.element) {

        Dom.addClass(this.element, this.CSS_CLASS_NAME);


        // Subscribe to Custom Events

        this.initEvent.subscribe(this._onInit);
        this.beforeRenderEvent.subscribe(this._onBeforeRender);
        this.renderEvent.subscribe(this._onRender);
        this.beforeShowEvent.subscribe(this._onBeforeShow);
        this.hideEvent.subscribe(this._onHide);
        this.showEvent.subscribe(this._onShow);
        this.beforeHideEvent.subscribe(this._onBeforeHide);
        this.mouseOverEvent.subscribe(this._onMouseOver);
        this.mouseOutEvent.subscribe(this._onMouseOut);
        this.clickEvent.subscribe(this._onClick);
        this.keyDownEvent.subscribe(this._onKeyDown);
        this.keyPressEvent.subscribe(this._onKeyPress);
        this.blurEvent.subscribe(this._onBlur);


		//	Fixes an issue in Firefox 2 and Webkit where Dom's "getX" and "getY" 
		//	methods return values that don't take scrollTop into consideration 

        if ((UA.gecko && UA.gecko < 1.9) || UA.webkit) {

            this.cfg.subscribeToConfigEvent(_Y, this._onYChange);

        }


        if (p_oConfig) {
    
            this.cfg.applyConfig(p_oConfig, true);
    
        }


        // Register the Menu instance with the MenuManager

        MenuManager.addMenu(this);
        

        this.initEvent.fire(Menu);

    }

},



// Private methods


/**
* @method _initSubTree
* @description Iterates the childNodes of the source element to find nodes 
* used to instantiate menu and menu items.
* @private
*/
_initSubTree: function () {

    var oSrcElement = this.srcElement,
        sSrcElementTagName,
        nGroup,
        sGroupTitleTagName,
        oNode,
        aListElements,
        nListElements,
        i;


    if (oSrcElement) {
    
        sSrcElementTagName = 
            (oSrcElement.tagName && oSrcElement.tagName.toUpperCase());


        if (sSrcElementTagName == _DIV_UPPERCASE) {
    
            //  Populate the collection of item groups and item group titles
    
            oNode = this.body.firstChild;
    

            if (oNode) {
    
                nGroup = 0;
                sGroupTitleTagName = this.GROUP_TITLE_TAG_NAME.toUpperCase();
        
                do {
        

                    if (oNode && oNode.tagName) {
        
                        switch (oNode.tagName.toUpperCase()) {
        
                            case sGroupTitleTagName:
                            
                                this._aGroupTitleElements[nGroup] = oNode;
        
                            break;
        
                            case _UL_UPPERCASE:
        
                                this._aListElements[nGroup] = oNode;
                                this._aItemGroups[nGroup] = [];
                                nGroup++;
        
                            break;
        
                        }
                    
                    }
        
                }
                while ((oNode = oNode.nextSibling));
        
        
                /*
                    Apply the "first-of-type" class to the first UL to mimic 
                    the ":first-of-type" CSS3 psuedo class.
                */
        
                if (this._aListElements[0]) {
        
                    Dom.addClass(this._aListElements[0], _FIRST_OF_TYPE);
        
                }
            
            }
    
        }
    
    
        oNode = null;
    
    

        if (sSrcElementTagName) {
    
            switch (sSrcElementTagName) {
        
                case _DIV_UPPERCASE:

                    aListElements = this._aListElements;
                    nListElements = aListElements.length;
        
                    if (nListElements > 0) {
        
        
                        i = nListElements - 1;
        
                        do {
        
                            oNode = aListElements[i].firstChild;
            
                            if (oNode) {

            
                                do {
                
                                    if (oNode && oNode.tagName && 
                                        oNode.tagName.toUpperCase() == _LI) {
                
        
                                        this.addItem(new this.ITEM_TYPE(oNode, 
                                                    { parent: this }), i);
            
                                    }
                        
                                }
                                while ((oNode = oNode.nextSibling));
                            
                            }
                    
                        }
                        while (i--);
        
                    }
        
                break;
        
                case _SELECT:
        
        
                    oNode = oSrcElement.firstChild;
        
                    do {
        
                        if (oNode && oNode.tagName) {
                        
                            switch (oNode.tagName.toUpperCase()) {
            
                                case _OPTGROUP:
                                case _OPTION:
            
            
                                    this.addItem(
                                            new this.ITEM_TYPE(
                                                    oNode, 
                                                    { parent: this }
                                                )
                                            );
            
                                break;
            
                            }
    
                        }
        
                    }
                    while ((oNode = oNode.nextSibling));
        
                break;
        
            }
    
        }    
    
    }

},


/**
* @method _getFirstEnabledItem
* @description Returns the first enabled item in the menu.
* @return {YAHOO.widget.MenuItem}
* @private
*/
_getFirstEnabledItem: function () {

    var aItems = this.getItems(),
        nItems = aItems.length,
        oItem,
        returnVal;
    

    for(var i=0; i<nItems; i++) {

        oItem = aItems[i];

        if (oItem && !oItem.cfg.getProperty(_DISABLED) && oItem.element.style.display != _NONE) {

            returnVal = oItem;
            break;

        }
    
    }
    
    return returnVal;
    
},


/**
* @method _addItemToGroup
* @description Adds a menu item to a group.
* @private
* @param {Number} p_nGroupIndex Number indicating the group to which the 
* item belongs.
* @param {YAHOO.widget.MenuItem} p_oItem Object reference for the MenuItem 
* instance to be added to the menu.
* @param {String} p_oItem String specifying the text of the item to be added 
* to the menu.
* @param {Object} p_oItem Object literal containing a set of menu item 
* configuration properties.
* @param {Number} p_nItemIndex Optional. Number indicating the index at 
* which the menu item should be added.
* @return {YAHOO.widget.MenuItem}
*/
_addItemToGroup: function (p_nGroupIndex, p_oItem, p_nItemIndex) {

    var oItem,
        nGroupIndex,
        aGroup,
        oGroupItem,
        bAppend,
        oNextItemSibling,
        nItemIndex,
        returnVal;


    function getNextItemSibling(p_aArray, p_nStartIndex) {

        return (p_aArray[p_nStartIndex] || getNextItemSibling(p_aArray, (p_nStartIndex+1)));

    }


    if (p_oItem instanceof this.ITEM_TYPE) {

        oItem = p_oItem;
        oItem.parent = this;

    }
    else if (Lang.isString(p_oItem)) {

        oItem = new this.ITEM_TYPE(p_oItem, { parent: this });
    
    }
    else if (Lang.isObject(p_oItem)) {

        p_oItem.parent = this;

        oItem = new this.ITEM_TYPE(p_oItem.text, p_oItem);

    }


    if (oItem) {

        if (oItem.cfg.getProperty(_SELECTED)) {

            this.activeItem = oItem;
        
        }


        nGroupIndex = Lang.isNumber(p_nGroupIndex) ? p_nGroupIndex : 0;
        aGroup = this._getItemGroup(nGroupIndex);



        if (!aGroup) {

            aGroup = this._createItemGroup(nGroupIndex);

        }


        if (Lang.isNumber(p_nItemIndex)) {

            bAppend = (p_nItemIndex >= aGroup.length);            


            if (aGroup[p_nItemIndex]) {
    
                aGroup.splice(p_nItemIndex, 0, oItem);
    
            }
            else {
    
                aGroup[p_nItemIndex] = oItem;
    
            }


            oGroupItem = aGroup[p_nItemIndex];

            if (oGroupItem) {

                if (bAppend && (!oGroupItem.element.parentNode || 
                        oGroupItem.element.parentNode.nodeType == 11)) {
        
                    this._aListElements[nGroupIndex].appendChild(oGroupItem.element);
    
                }
                else {
    
                    oNextItemSibling = getNextItemSibling(aGroup, (p_nItemIndex+1));
    
                    if (oNextItemSibling && (!oGroupItem.element.parentNode || 
                            oGroupItem.element.parentNode.nodeType == 11)) {
            
                        this._aListElements[nGroupIndex].insertBefore(
                                oGroupItem.element, oNextItemSibling.element);
        
                    }
    
                }
    

                oGroupItem.parent = this;
        
                this._subscribeToItemEvents(oGroupItem);
    
                this._configureSubmenu(oGroupItem);
                
                this._updateItemProperties(nGroupIndex);
        

                this.itemAddedEvent.fire(oGroupItem);
                this.changeContentEvent.fire();

                returnVal = oGroupItem;
    
            }

        }
        else {
    
            nItemIndex = aGroup.length;
    
            aGroup[nItemIndex] = oItem;

            oGroupItem = aGroup[nItemIndex];
    

            if (oGroupItem) {
    
                if (!Dom.isAncestor(this._aListElements[nGroupIndex], oGroupItem.element)) {
    
                    this._aListElements[nGroupIndex].appendChild(oGroupItem.element);
    
                }
    
                oGroupItem.element.setAttribute(_GROUP_INDEX, nGroupIndex);
                oGroupItem.element.setAttribute(_INDEX, nItemIndex);
        
                oGroupItem.parent = this;
    
                oGroupItem.index = nItemIndex;
                oGroupItem.groupIndex = nGroupIndex;
        
                this._subscribeToItemEvents(oGroupItem);
    
                this._configureSubmenu(oGroupItem);
    
                if (nItemIndex === 0) {
        
                    Dom.addClass(oGroupItem.element, _FIRST_OF_TYPE);
        
                }

        

                this.itemAddedEvent.fire(oGroupItem);
                this.changeContentEvent.fire();

                returnVal = oGroupItem;
    
            }
    
        }

    }
    
    return returnVal;
    
},


/**
* @method _removeItemFromGroupByIndex
* @description Removes a menu item from a group by index.  Returns the menu 
* item that was removed.
* @private
* @param {Number} p_nGroupIndex Number indicating the group to which the menu 
* item belongs.
* @param {Number} p_nItemIndex Number indicating the index of the menu item 
* to be removed.
* @return {YAHOO.widget.MenuItem}
*/
_removeItemFromGroupByIndex: function (p_nGroupIndex, p_nItemIndex) {

    var nGroupIndex = Lang.isNumber(p_nGroupIndex) ? p_nGroupIndex : 0,
        aGroup = this._getItemGroup(nGroupIndex),
        aArray,
        oItem,
        oUL;

    if (aGroup) {

        aArray = aGroup.splice(p_nItemIndex, 1);
        oItem = aArray[0];
    
        if (oItem) {
    
            // Update the index and className properties of each member        
            
            this._updateItemProperties(nGroupIndex);
    
            if (aGroup.length === 0) {
    
                // Remove the UL
    
                oUL = this._aListElements[nGroupIndex];
    
                if (this.body && oUL) {
    
                    this.body.removeChild(oUL);
    
                }
    
                // Remove the group from the array of items
    
                this._aItemGroups.splice(nGroupIndex, 1);
    
    
                // Remove the UL from the array of ULs
    
                this._aListElements.splice(nGroupIndex, 1);
    
    
                /*
                     Assign the "first-of-type" class to the new first UL 
                     in the collection
                */
    
                oUL = this._aListElements[0];
    
                if (oUL) {
    
                    Dom.addClass(oUL, _FIRST_OF_TYPE);
    
                }            
    
            }
    

            this.itemRemovedEvent.fire(oItem);
            this.changeContentEvent.fire();
    
        }

    }

	// Return a reference to the item that was removed

	return oItem;
    
},


/**
* @method _removeItemFromGroupByValue
* @description Removes a menu item from a group by reference.  Returns the 
* menu item that was removed.
* @private
* @param {Number} p_nGroupIndex Number indicating the group to which the
* menu item belongs.
* @param {YAHOO.widget.MenuItem} p_oItem Object reference for the MenuItem 
* instance to be removed.
* @return {YAHOO.widget.MenuItem}
*/    
_removeItemFromGroupByValue: function (p_nGroupIndex, p_oItem) {

    var aGroup = this._getItemGroup(p_nGroupIndex),
        nItems,
        nItemIndex,
        returnVal,
        i;

    if (aGroup) {

        nItems = aGroup.length;
        nItemIndex = -1;
    
        if (nItems > 0) {
    
            i = nItems-1;
        
            do {
        
                if (aGroup[i] == p_oItem) {
        
                    nItemIndex = i;
                    break;    
        
                }
        
            }
            while (i--);
        
            if (nItemIndex > -1) {
        
                returnVal = this._removeItemFromGroupByIndex(p_nGroupIndex, nItemIndex);
        
            }
    
        }
    
    }
    
    return returnVal;

},


/**
* @method _updateItemProperties
* @description Updates the "index," "groupindex," and "className" properties 
* of the menu items in the specified group. 
* @private
* @param {Number} p_nGroupIndex Number indicating the group of items to update.
*/
_updateItemProperties: function (p_nGroupIndex) {

    var aGroup = this._getItemGroup(p_nGroupIndex),
        nItems = aGroup.length,
        oItem,
        oLI,
        i;


    if (nItems > 0) {

        i = nItems - 1;

        // Update the index and className properties of each member
    
        do {

            oItem = aGroup[i];

            if (oItem) {
    
                oLI = oItem.element;

                oItem.index = i;
                oItem.groupIndex = p_nGroupIndex;

                oLI.setAttribute(_GROUP_INDEX, p_nGroupIndex);
                oLI.setAttribute(_INDEX, i);

                Dom.removeClass(oLI, _FIRST_OF_TYPE);

            }
    
        }
        while (i--);


        if (oLI) {

            Dom.addClass(oLI, _FIRST_OF_TYPE);

        }

    }

},


/**
* @method _createItemGroup
* @description Creates a new menu item group (array) and its associated 
* <code>&#60;ul&#62;</code> element. Returns an aray of menu item groups.
* @private
* @param {Number} p_nIndex Number indicating the group to create.
* @return {Array}
*/
_createItemGroup: function (p_nIndex) {

    var oUL,
    	returnVal;

    if (!this._aItemGroups[p_nIndex]) {

        this._aItemGroups[p_nIndex] = [];

        oUL = document.createElement(_UL_LOWERCASE);

        this._aListElements[p_nIndex] = oUL;

        returnVal = this._aItemGroups[p_nIndex];

    }
    
    return returnVal;

},


/**
* @method _getItemGroup
* @description Returns the menu item group at the specified index.
* @private
* @param {Number} p_nIndex Number indicating the index of the menu item group 
* to be retrieved.
* @return {Array}
*/
_getItemGroup: function (p_nIndex) {

    var nIndex = Lang.isNumber(p_nIndex) ? p_nIndex : 0,
    	aGroups = this._aItemGroups,
    	returnVal;

	if (nIndex in aGroups) {

	    returnVal = aGroups[nIndex];

	}
	
	return returnVal;

},


/**
* @method _configureSubmenu
* @description Subscribes the menu item's submenu to its parent menu's events.
* @private
* @param {YAHOO.widget.MenuItem} p_oItem Object reference for the MenuItem 
* instance with the submenu to be configured.
*/
_configureSubmenu: function (p_oItem) {

    var oSubmenu = p_oItem.cfg.getProperty(_SUBMENU);

    if (oSubmenu) {
            
        /*
            Listen for configuration changes to the parent menu 
            so they they can be applied to the submenu.
        */

        this.cfg.configChangedEvent.subscribe(this._onParentMenuConfigChange, oSubmenu, true);

        this.renderEvent.subscribe(this._onParentMenuRender, oSubmenu, true);

    }

},




/**
* @method _subscribeToItemEvents
* @description Subscribes a menu to a menu item's event.
* @private
* @param {YAHOO.widget.MenuItem} p_oItem Object reference for the MenuItem 
* instance whose events should be subscribed to.
*/
_subscribeToItemEvents: function (p_oItem) {

    p_oItem.destroyEvent.subscribe(this._onMenuItemDestroy, p_oItem, this);
    p_oItem.cfg.configChangedEvent.subscribe(this._onMenuItemConfigChange, p_oItem, this);

},


/**
* @method _onVisibleChange
* @description Change event handler for the the menu's "visible" configuration
* property.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onVisibleChange: function (p_sType, p_aArgs) {

    var bVisible = p_aArgs[0];
    
    if (bVisible) {

        Dom.addClass(this.element, _VISIBLE);

    }
    else {

        Dom.removeClass(this.element, _VISIBLE);

    }

},


/**
* @method _cancelHideDelay
* @description Cancels the call to "hideMenu."
* @private
*/
_cancelHideDelay: function () {

    var oTimer = this.getRoot()._hideDelayTimer;

    if (oTimer) {

		oTimer.cancel();

    }

},


/**
* @method _execHideDelay
* @description Hides the menu after the number of milliseconds specified by 
* the "hidedelay" configuration property.
* @private
*/
_execHideDelay: function () {

    this._cancelHideDelay();

    var oRoot = this.getRoot();
        
	oRoot._hideDelayTimer = Lang.later(oRoot.cfg.getProperty(_HIDE_DELAY), this, function () {
    
        if (oRoot.activeItem) {

			if (oRoot.hasFocus()) {

				oRoot.activeItem.focus();
			
			}
			
            oRoot.clearActiveItem();

        }

        if (oRoot == this && !(this instanceof YAHOO.widget.MenuBar) && 
            this.cfg.getProperty(_POSITION) == _DYNAMIC) {

            this.hide();
        
        }
    
    });

},


/**
* @method _cancelShowDelay
* @description Cancels the call to the "showMenu."
* @private
*/
_cancelShowDelay: function () {

    var oTimer = this.getRoot()._showDelayTimer;

    if (oTimer) {

        oTimer.cancel();

    }

},


/**
* @method _execSubmenuHideDelay
* @description Hides a submenu after the number of milliseconds specified by 
* the "submenuhidedelay" configuration property have ellapsed.
* @private
* @param {YAHOO.widget.Menu} p_oSubmenu Object specifying the submenu that  
* should be hidden.
* @param {Number} p_nMouseX The x coordinate of the mouse when it left 
* the specified submenu's parent menu item.
* @param {Number} p_nHideDelay The number of milliseconds that should ellapse
* before the submenu is hidden.
*/
_execSubmenuHideDelay: function (p_oSubmenu, p_nMouseX, p_nHideDelay) {

	p_oSubmenu._submenuHideDelayTimer = Lang.later(50, this, function () {

        if (this._nCurrentMouseX > (p_nMouseX + 10)) {

            p_oSubmenu._submenuHideDelayTimer = Lang.later(p_nHideDelay, p_oSubmenu, function () {
        
                this.hide();

            });

        }
        else {

            p_oSubmenu.hide();
        
        }
	
	});

},



// Protected methods


/**
* @method _disableScrollHeader
* @description Disables the header used for scrolling the body of the menu.
* @protected
*/
_disableScrollHeader: function () {

    if (!this._bHeaderDisabled) {

        Dom.addClass(this.header, _TOP_SCROLLBAR_DISABLED);
        this._bHeaderDisabled = true;

    }

},


/**
* @method _disableScrollFooter
* @description Disables the footer used for scrolling the body of the menu.
* @protected
*/
_disableScrollFooter: function () {

    if (!this._bFooterDisabled) {

        Dom.addClass(this.footer, _BOTTOM_SCROLLBAR_DISABLED);
        this._bFooterDisabled = true;

    }

},


/**
* @method _enableScrollHeader
* @description Enables the header used for scrolling the body of the menu.
* @protected
*/
_enableScrollHeader: function () {

    if (this._bHeaderDisabled) {

        Dom.removeClass(this.header, _TOP_SCROLLBAR_DISABLED);
        this._bHeaderDisabled = false;

    }

},


/**
* @method _enableScrollFooter
* @description Enables the footer used for scrolling the body of the menu.
* @protected
*/
_enableScrollFooter: function () {

    if (this._bFooterDisabled) {

        Dom.removeClass(this.footer, _BOTTOM_SCROLLBAR_DISABLED);
        this._bFooterDisabled = false;

    }

},


/**
* @method _onMouseOver
* @description "mouseover" event handler for the menu.
* @protected
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onMouseOver: function (p_sType, p_aArgs) {

    var oEvent = p_aArgs[0],
        oItem = p_aArgs[1],
        oTarget = Event.getTarget(oEvent),
        oRoot = this.getRoot(),
        oSubmenuHideDelayTimer = this._submenuHideDelayTimer,
        oParentMenu,
        nShowDelay,
        bShowDelay,
        oActiveItem,
        oItemCfg,
        oSubmenu;


    var showSubmenu = function () {

        if (this.parent.cfg.getProperty(_SELECTED)) {

            this.show();

        }

    };


    if (!this._bStopMouseEventHandlers) {
    
		if (!this._bHandledMouseOverEvent && (oTarget == this.element || 
				Dom.isAncestor(this.element, oTarget))) {
	
			// Menu mouseover logic

	        if (this._useHideDelay) {
	        	this._cancelHideDelay();
	        }
	
			this._nCurrentMouseX = 0;
	
			Event.on(this.element, _MOUSEMOVE, this._onMouseMove, this, true);


			/*
				If the mouse is moving from the submenu back to its corresponding menu item, 
				don't hide the submenu or clear the active MenuItem.
			*/

			if (!(oItem && Dom.isAncestor(oItem.element, Event.getRelatedTarget(oEvent)))) {

				this.clearActiveItem();

			}
	

			if (this.parent && oSubmenuHideDelayTimer) {
	
				oSubmenuHideDelayTimer.cancel();
	
				this.parent.cfg.setProperty(_SELECTED, true);
	
				oParentMenu = this.parent.parent;
	
				oParentMenu._bHandledMouseOutEvent = true;
				oParentMenu._bHandledMouseOverEvent = false;
	
			}
	
	
			this._bHandledMouseOverEvent = true;
			this._bHandledMouseOutEvent = false;
		
		}
	
	
		if (oItem && !oItem.handledMouseOverEvent && !oItem.cfg.getProperty(_DISABLED) && 
			(oTarget == oItem.element || Dom.isAncestor(oItem.element, oTarget))) {
	
			// Menu Item mouseover logic
	
			nShowDelay = this.cfg.getProperty(_SHOW_DELAY);
			bShowDelay = (nShowDelay > 0);
	
	
			if (bShowDelay) {
			
				this._cancelShowDelay();
			
			}
	
	
			oActiveItem = this.activeItem;
		
			if (oActiveItem) {
		
				oActiveItem.cfg.setProperty(_SELECTED, false);
		
			}
	
	
			oItemCfg = oItem.cfg;
		
			// Select and focus the current menu item
		
			oItemCfg.setProperty(_SELECTED, true);
	
	
			if (this.hasFocus() || oRoot._hasFocus) {
			
				oItem.focus();
				
				oRoot._hasFocus = false;
			
			}
	
	
			if (this.cfg.getProperty(_AUTO_SUBMENU_DISPLAY)) {
	
				// Show the submenu this menu item
	
				oSubmenu = oItemCfg.getProperty(_SUBMENU);
			
				if (oSubmenu) {
			
					if (bShowDelay) {
	
						oRoot._showDelayTimer = 
							Lang.later(oRoot.cfg.getProperty(_SHOW_DELAY), oSubmenu, showSubmenu);
			
					}
					else {
	
						oSubmenu.show();
	
					}
	
				}
	
			}                        
	
			oItem.handledMouseOverEvent = true;
			oItem.handledMouseOutEvent = false;
	
		}
    
    }

},


/**
* @method _onMouseOut
* @description "mouseout" event handler for the menu.
* @protected
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onMouseOut: function (p_sType, p_aArgs) {

    var oEvent = p_aArgs[0],
        oItem = p_aArgs[1],
        oRelatedTarget = Event.getRelatedTarget(oEvent),
        bMovingToSubmenu = false,
        oItemCfg,
        oSubmenu,
        nSubmenuHideDelay,
        nShowDelay;


    if (!this._bStopMouseEventHandlers) {
    
		if (oItem && !oItem.cfg.getProperty(_DISABLED)) {
	
			oItemCfg = oItem.cfg;
			oSubmenu = oItemCfg.getProperty(_SUBMENU);
	
	
			if (oSubmenu && (oRelatedTarget == oSubmenu.element ||
					Dom.isAncestor(oSubmenu.element, oRelatedTarget))) {
	
				bMovingToSubmenu = true;
	
			}
	
	
			if (!oItem.handledMouseOutEvent && ((oRelatedTarget != oItem.element &&  
				!Dom.isAncestor(oItem.element, oRelatedTarget)) || bMovingToSubmenu)) {
	
				// Menu Item mouseout logic
	
				if (!bMovingToSubmenu) {
	
					oItem.cfg.setProperty(_SELECTED, false);
	
	
					if (oSubmenu) {
	
						nSubmenuHideDelay = this.cfg.getProperty(_SUBMENU_HIDE_DELAY);
	
						nShowDelay = this.cfg.getProperty(_SHOW_DELAY);
	
						if (!(this instanceof YAHOO.widget.MenuBar) && nSubmenuHideDelay > 0 && 
							nShowDelay >= nSubmenuHideDelay) {
	
							this._execSubmenuHideDelay(oSubmenu, Event.getPageX(oEvent),
									nSubmenuHideDelay);
	
						}
						else {
	
							oSubmenu.hide();
	
						}
	
					}
	
				}
	
	
				oItem.handledMouseOutEvent = true;
				oItem.handledMouseOverEvent = false;
		
			}
	
		}


		if (!this._bHandledMouseOutEvent && ((oRelatedTarget != this.element &&  
			!Dom.isAncestor(this.element, oRelatedTarget)) || bMovingToSubmenu)) {
	
			// Menu mouseout logic

	        if (this._useHideDelay) {
	        	this._execHideDelay();
	        }

			Event.removeListener(this.element, _MOUSEMOVE, this._onMouseMove);
	
			this._nCurrentMouseX = Event.getPageX(oEvent);
	
			this._bHandledMouseOutEvent = true;
			this._bHandledMouseOverEvent = false;
	
		}
    
    }

},


/**
* @method _onMouseMove
* @description "click" event handler for the menu.
* @protected
* @param {Event} p_oEvent Object representing the DOM event object passed 
* back by the event utility (YAHOO.util.Event).
* @param {YAHOO.widget.Menu} p_oMenu Object representing the menu that 
* fired the event.
*/
_onMouseMove: function (p_oEvent, p_oMenu) {

    if (!this._bStopMouseEventHandlers) {
    
	    this._nCurrentMouseX = Event.getPageX(p_oEvent);
    
    }

},


/**
* @method _onClick
* @description "click" event handler for the menu.
* @protected
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onClick: function (p_sType, p_aArgs) {

	var oEvent = p_aArgs[0],
		oItem = p_aArgs[1],
		bInMenuAnchor = false,
		oSubmenu,
		oMenu,
		oRoot,
		sId,
		sURL,
		nHashPos,
		nLen;


	var hide = function () {

		/*
			There is an inconsistency between Firefox for Mac OS X and Firefox Windows 
			regarding the triggering of the display of the browser's context menu and the 
			subsequent firing of the "click" event. In Firefox for Windows, when the user 
			triggers the display of the browser's context menu the "click" event also fires 
			for the document object, even though the "click" event did not fire for the 
			element that was the original target of the "contextmenu" event. This is unique 
			to Firefox on Windows. For all other A-Grade browsers, including Firefox for 
			Mac OS X, the "click" event doesn't fire for the document object. 

			This bug in Firefox for Windows affects Menu as Menu instances listen for 
			events at the document level and have an internal "click" event handler they 
			use to hide themselves when clicked. As a result, in Firefox for Windows a 
			Menu will hide when the user right clicks on a MenuItem to raise the browser's 
			default context menu, because its internal "click" event handler ends up 
			getting called.  The following line fixes this bug.
		*/

		if (!((UA.gecko && this.platform == _WINDOWS) && oEvent.button > 0)) {
		
			oRoot = this.getRoot();

			if (oRoot instanceof YAHOO.widget.MenuBar || 
				oRoot.cfg.getProperty(_POSITION) == _STATIC) {

				oRoot.clearActiveItem();

			}
			else {

				oRoot.hide();
			
			}
		
		}	
	
	};


	if (oItem) {
	
		if (oItem.cfg.getProperty(_DISABLED)) {
		
			Event.preventDefault(oEvent);

			hide.call(this);

		}
		else {

			oSubmenu = oItem.cfg.getProperty(_SUBMENU);
	
			
			/*
				 Check if the URL of the anchor is pointing to an element that is 
				 a child of the menu.
			*/
			
			sURL = oItem.cfg.getProperty(_URL);

		
			if (sURL) {
	
				nHashPos = sURL.indexOf(_HASH);
	
				nLen = sURL.length;
	
	
				if (nHashPos != -1) {
	
					sURL = sURL.substr(nHashPos, nLen);
		
					nLen = sURL.length;
	
	
					if (nLen > 1) {
	
						sId = sURL.substr(1, nLen);
	
						oMenu = YAHOO.widget.MenuManager.getMenu(sId);
						
						if (oMenu) {

							bInMenuAnchor = 
								(this.getRoot() === oMenu.getRoot());

						}
						
					}
					else if (nLen === 1) {
	
						bInMenuAnchor = true;
					
					}
	
				}
			
			}

	
			if (bInMenuAnchor && !oItem.cfg.getProperty(_TARGET)) {
	
				Event.preventDefault(oEvent);
				

				if (UA.webkit) {
				
					oItem.focus();
				
				}
				else {

					oItem.focusEvent.fire();
				
				}
			
			}
	
	
			if (!oSubmenu && !this.cfg.getProperty(_KEEP_OPEN)) {
	
				hide.call(this);
	
			}
			
		}
	
	}

},


/**
* @method _onKeyDown
* @description "keydown" event handler for the menu.
* @protected
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onKeyDown: function (p_sType, p_aArgs) {

    var oEvent = p_aArgs[0],
        oItem = p_aArgs[1],
        oSubmenu,
        oItemCfg,
        oParentItem,
        oRoot,
        oNextItem,
        oBody,
        nBodyScrollTop,
        nBodyOffsetHeight,
        aItems,
        nItems,
        nNextItemOffsetTop,
        nScrollTarget,
        oParentMenu;


	if (this._useHideDelay) {
		this._cancelHideDelay();
	}


    /*
        This function is called to prevent a bug in Firefox.  In Firefox,
        moving a DOM element into a stationary mouse pointer will cause the 
        browser to fire mouse events.  This can result in the menu mouse
        event handlers being called uncessarily, especially when menus are 
        moved into a stationary mouse pointer as a result of a 
        key event handler.
    */
    function stopMouseEventHandlers() {

        this._bStopMouseEventHandlers = true;
        
        Lang.later(10, this, function () {

            this._bStopMouseEventHandlers = false;
        
        });

    }


    if (oItem && !oItem.cfg.getProperty(_DISABLED)) {

        oItemCfg = oItem.cfg;
        oParentItem = this.parent;

        switch(oEvent.keyCode) {
    
            case 38:    // Up arrow
            case 40:    // Down arrow
    
                oNextItem = (oEvent.keyCode == 38) ? 
                    oItem.getPreviousEnabledSibling() : 
                    oItem.getNextEnabledSibling();
        
                if (oNextItem) {

                    this.clearActiveItem();

                    oNextItem.cfg.setProperty(_SELECTED, true);
                    oNextItem.focus();


                    if (this.cfg.getProperty(_MAX_HEIGHT) > 0) {

                        oBody = this.body;
                        nBodyScrollTop = oBody.scrollTop;
                        nBodyOffsetHeight = oBody.offsetHeight;
                        aItems = this.getItems();
                        nItems = aItems.length - 1;
                        nNextItemOffsetTop = oNextItem.element.offsetTop;


                        if (oEvent.keyCode == 40 ) {    // Down
                       
                            if (nNextItemOffsetTop >= (nBodyOffsetHeight + nBodyScrollTop)) {

                                oBody.scrollTop = nNextItemOffsetTop - nBodyOffsetHeight;

                            }
                            else if (nNextItemOffsetTop <= nBodyScrollTop) {
                            
                                oBody.scrollTop = 0;
                            
                            }


                            if (oNextItem == aItems[nItems]) {

                                oBody.scrollTop = oNextItem.element.offsetTop;

                            }

                        }
                        else {  // Up

                            if (nNextItemOffsetTop <= nBodyScrollTop) {

                                oBody.scrollTop = nNextItemOffsetTop - oNextItem.element.offsetHeight;
                            
                            }
                            else if (nNextItemOffsetTop >= (nBodyScrollTop + nBodyOffsetHeight)) {
                            
                                oBody.scrollTop = nNextItemOffsetTop;
                            
                            }


                            if (oNextItem == aItems[0]) {
                            
                                oBody.scrollTop = 0;
                            
                            }

                        }


                        nBodyScrollTop = oBody.scrollTop;
                        nScrollTarget = oBody.scrollHeight - oBody.offsetHeight;

                        if (nBodyScrollTop === 0) {

                            this._disableScrollHeader();
                            this._enableScrollFooter();

                        }
                        else if (nBodyScrollTop == nScrollTarget) {

                             this._enableScrollHeader();
                             this._disableScrollFooter();

                        }
                        else {

                            this._enableScrollHeader();
                            this._enableScrollFooter();

                        }

                    }

                }

    
                Event.preventDefault(oEvent);

                stopMouseEventHandlers();
    
            break;
            
    
            case 39:    // Right arrow
    
                oSubmenu = oItemCfg.getProperty(_SUBMENU);
    
                if (oSubmenu) {
    
                    if (!oItemCfg.getProperty(_SELECTED)) {
        
                        oItemCfg.setProperty(_SELECTED, true);
        
                    }
    
                    oSubmenu.show();
                    oSubmenu.setInitialFocus();
                    oSubmenu.setInitialSelection();
    
                }
                else {
    
                    oRoot = this.getRoot();
                    
                    if (oRoot instanceof YAHOO.widget.MenuBar) {
    
                        oNextItem = oRoot.activeItem.getNextEnabledSibling();
    
                        if (oNextItem) {
                        
                            oRoot.clearActiveItem();
    
                            oNextItem.cfg.setProperty(_SELECTED, true);
    
                            oSubmenu = oNextItem.cfg.getProperty(_SUBMENU);
    
                            if (oSubmenu) {
    
                                oSubmenu.show();
                                oSubmenu.setInitialFocus();
                            
                            }
                            else {
    
                            	oNextItem.focus();
                            
                            }
                        
                        }
                    
                    }
                
                }
    
    
                Event.preventDefault(oEvent);

                stopMouseEventHandlers();

            break;
    
    
            case 37:    // Left arrow
    
                if (oParentItem) {
    
                    oParentMenu = oParentItem.parent;
    
                    if (oParentMenu instanceof YAHOO.widget.MenuBar) {
    
                        oNextItem = 
                            oParentMenu.activeItem.getPreviousEnabledSibling();
    
                        if (oNextItem) {
                        
                            oParentMenu.clearActiveItem();
    
                            oNextItem.cfg.setProperty(_SELECTED, true);
    
                            oSubmenu = oNextItem.cfg.getProperty(_SUBMENU);
    
                            if (oSubmenu) {
                            
                                oSubmenu.show();
								oSubmenu.setInitialFocus();                                
                            
                            }
                            else {
    
                            	oNextItem.focus();
                            
                            }
                        
                        } 
                    
                    }
                    else {
    
                        this.hide();
    
                        oParentItem.focus();
                    
                    }
    
                }
    
                Event.preventDefault(oEvent);

                stopMouseEventHandlers();

            break;        
    
        }


    }


    if (oEvent.keyCode == 27) { // Esc key

        if (this.cfg.getProperty(_POSITION) == _DYNAMIC) {
        
            this.hide();

            if (this.parent) {

                this.parent.focus();
            
            }

        }
        else if (this.activeItem) {

            oSubmenu = this.activeItem.cfg.getProperty(_SUBMENU);

            if (oSubmenu && oSubmenu.cfg.getProperty(_VISIBLE)) {
            
                oSubmenu.hide();
                this.activeItem.focus();
            
            }
            else {

                this.activeItem.blur();
                this.activeItem.cfg.setProperty(_SELECTED, false);
        
            }
        
        }


        Event.preventDefault(oEvent);
    
    }
    
},


/**
* @method _onKeyPress
* @description "keypress" event handler for a Menu instance.
* @protected
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event 
* was fired.
*/
_onKeyPress: function (p_sType, p_aArgs) {
    
    var oEvent = p_aArgs[0];


    if (oEvent.keyCode == 40 || oEvent.keyCode == 38) {

        Event.preventDefault(oEvent);

    }

},


/**
* @method _onBlur
* @description "blur" event handler for a Menu instance.
* @protected
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event 
* was fired.
*/
_onBlur: function (p_sType, p_aArgs) {
        
	if (this._hasFocus) {
		this._hasFocus = false;
	}

},

/**
* @method _onYChange
* @description "y" event handler for a Menu instance.
* @protected
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event 
* was fired.
*/
_onYChange: function (p_sType, p_aArgs) {

    var oParent = this.parent,
        nScrollTop,
        oIFrame,
        nY;


    if (oParent) {

        nScrollTop = oParent.parent.body.scrollTop;


        if (nScrollTop > 0) {
    
            nY = (this.cfg.getProperty(_Y) - nScrollTop);
            
            Dom.setY(this.element, nY);

            oIFrame = this.iframe;            
    

            if (oIFrame) {
    
                Dom.setY(oIFrame, nY);
    
            }
            
            this.cfg.setProperty(_Y, nY, true);
        
        }
    
    }

},


/**
* @method _onScrollTargetMouseOver
* @description "mouseover" event handler for the menu's "header" and "footer" 
* elements.  Used to scroll the body of the menu up and down when the 
* menu's "maxheight" configuration property is set to a value greater than 0.
* @protected
* @param {Event} p_oEvent Object representing the DOM event object passed 
* back by the event utility (YAHOO.util.Event).
* @param {YAHOO.widget.Menu} p_oMenu Object representing the menu that 
* fired the event.
*/
_onScrollTargetMouseOver: function (p_oEvent, p_oMenu) {

	var oBodyScrollTimer = this._bodyScrollTimer;


	if (oBodyScrollTimer) {

		oBodyScrollTimer.cancel();

	}


	this._cancelHideDelay();


    var oTarget = Event.getTarget(p_oEvent),
        oBody = this.body,
        nScrollIncrement = this.cfg.getProperty(_SCROLL_INCREMENT),
        nScrollTarget,
        fnScrollFunction;


    function scrollBodyDown() {

        var nScrollTop = oBody.scrollTop;


        if (nScrollTop < nScrollTarget) {

            oBody.scrollTop = (nScrollTop + nScrollIncrement);

            this._enableScrollHeader();

        }
        else {

            oBody.scrollTop = nScrollTarget;

            this._bodyScrollTimer.cancel();

            this._disableScrollFooter();

        }

    }


    function scrollBodyUp() {

        var nScrollTop = oBody.scrollTop;


        if (nScrollTop > 0) {

            oBody.scrollTop = (nScrollTop - nScrollIncrement);

            this._enableScrollFooter();

        }
        else {

            oBody.scrollTop = 0;

			this._bodyScrollTimer.cancel();

            this._disableScrollHeader();

        }

    }

    
    if (Dom.hasClass(oTarget, _HD)) {

        fnScrollFunction = scrollBodyUp;
    
    }
    else {

        nScrollTarget = oBody.scrollHeight - oBody.offsetHeight;

        fnScrollFunction = scrollBodyDown;
    
    }
    

    this._bodyScrollTimer = Lang.later(10, this, fnScrollFunction, null, true);

},


/**
* @method _onScrollTargetMouseOut
* @description "mouseout" event handler for the menu's "header" and "footer" 
* elements.  Used to stop scrolling the body of the menu up and down when the 
* menu's "maxheight" configuration property is set to a value greater than 0.
* @protected
* @param {Event} p_oEvent Object representing the DOM event object passed 
* back by the event utility (YAHOO.util.Event).
* @param {YAHOO.widget.Menu} p_oMenu Object representing the menu that 
* fired the event.
*/
_onScrollTargetMouseOut: function (p_oEvent, p_oMenu) {

	var oBodyScrollTimer = this._bodyScrollTimer;

	if (oBodyScrollTimer) {

		oBodyScrollTimer.cancel();

	}
	
    this._cancelHideDelay();

},



// Private methods


/**
* @method _onInit
* @description "init" event handler for the menu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onInit: function (p_sType, p_aArgs) {

    this.cfg.subscribeToConfigEvent(_VISIBLE, this._onVisibleChange);

    var bRootMenu = !this.parent,
        bLazyLoad = this.lazyLoad;


    /*
        Automatically initialize a menu's subtree if:

        1) This is the root menu and lazyload is off
        
        2) This is the root menu, lazyload is on, but the menu is 
           already visible

        3) This menu is a submenu and lazyload is off
    */



    if (((bRootMenu && !bLazyLoad) || 
        (bRootMenu && (this.cfg.getProperty(_VISIBLE) || 
        this.cfg.getProperty(_POSITION) == _STATIC)) || 
        (!bRootMenu && !bLazyLoad)) && this.getItemGroups().length === 0) {

        if (this.srcElement) {

            this._initSubTree();
        
        }


        if (this.itemData) {

            this.addItems(this.itemData);

        }
    
    }
    else if (bLazyLoad) {

        this.cfg.fireQueue();
    
    }

},


/**
* @method _onBeforeRender
* @description "beforerender" event handler for the menu.  Appends all of the 
* <code>&#60;ul&#62;</code>, <code>&#60;li&#62;</code> and their accompanying 
* title elements to the body element of the menu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onBeforeRender: function (p_sType, p_aArgs) {

    var oEl = this.element,
        nListElements = this._aListElements.length,
        bFirstList = true,
        i = 0,
        oUL,
        oGroupTitle;

    if (nListElements > 0) {

        do {

            oUL = this._aListElements[i];

            if (oUL) {

                if (bFirstList) {
        
                    Dom.addClass(oUL, _FIRST_OF_TYPE);
                    bFirstList = false;
        
                }


                if (!Dom.isAncestor(oEl, oUL)) {

                    this.appendToBody(oUL);

                }


                oGroupTitle = this._aGroupTitleElements[i];

                if (oGroupTitle) {

                    if (!Dom.isAncestor(oEl, oGroupTitle)) {

                        oUL.parentNode.insertBefore(oGroupTitle, oUL);

                    }


                    Dom.addClass(oUL, _HAS_TITLE);

                }

            }

            i++;

        }
        while (i < nListElements);

    }

},


/**
* @method _onRender
* @description "render" event handler for the menu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onRender: function (p_sType, p_aArgs) {

    if (this.cfg.getProperty(_POSITION) == _DYNAMIC) { 

        if (!this.cfg.getProperty(_VISIBLE)) {

            this.positionOffScreen();

        }
    
    }

},





/**
* @method _onBeforeShow
* @description "beforeshow" event handler for the menu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onBeforeShow: function (p_sType, p_aArgs) {

    var nOptions,
        n,
        oSrcElement,
        oContainer = this.cfg.getProperty(_CONTAINER);


    if (this.lazyLoad && this.getItemGroups().length === 0) {

        if (this.srcElement) {
        
            this._initSubTree();

        }


        if (this.itemData) {

            if (this.parent && this.parent.parent && 
                this.parent.parent.srcElement && 
                this.parent.parent.srcElement.tagName.toUpperCase() == 
                _SELECT) {

                nOptions = this.itemData.length;
    
                for(n=0; n<nOptions; n++) {

                    if (this.itemData[n].tagName) {

                        this.addItem((new this.ITEM_TYPE(this.itemData[n])));
    
                    }
    
                }
            
            }
            else {

                this.addItems(this.itemData);
            
            }
        
        }


        oSrcElement = this.srcElement;

        if (oSrcElement) {

            if (oSrcElement.tagName.toUpperCase() == _SELECT) {

                if (Dom.inDocument(oSrcElement)) {

                    this.render(oSrcElement.parentNode);
                
                }
                else {
                
                    this.render(oContainer);
                
                }

            }
            else {

                this.render();

            }

        }
        else {

            if (this.parent) {

                this.render(this.parent.element);     

            }
            else {

                this.render(oContainer);

            }                

        }

    }



    var oParent = this.parent,
		aAlignment;


    if (!oParent && this.cfg.getProperty(_POSITION) == _DYNAMIC) {

        this.cfg.refireEvent(_XY);
   
    }


	if (oParent) {

		aAlignment = oParent.parent.cfg.getProperty(_SUBMENU_ALIGNMENT);
		
		this.cfg.setProperty(_CONTEXT, [oParent.element, aAlignment[0], aAlignment[1]]);
		this.align();
	
	}

},


getConstrainedY: function (y) {

	var oMenu = this,
	
		aContext = oMenu.cfg.getProperty(_CONTEXT),
		nInitialMaxHeight = oMenu.cfg.getProperty(_MAX_HEIGHT),

		nMaxHeight,

		oOverlapPositions = {

			"trbr": true,
			"tlbl": true,
			"bltl": true,
			"brtr": true

		},

		bPotentialContextOverlap = (aContext && oOverlapPositions[aContext[1] + aContext[2]]),
	
		oMenuEl = oMenu.element,
		nMenuOffsetHeight = oMenuEl.offsetHeight,
	
		nViewportOffset = Overlay.VIEWPORT_OFFSET,
		viewPortHeight = Dom.getViewportHeight(),
		scrollY = Dom.getDocumentScrollTop(),

		bCanConstrain = 
			(oMenu.cfg.getProperty(_MIN_SCROLL_HEIGHT) + nViewportOffset < viewPortHeight),

		nAvailableHeight,

		oContextEl,
		nContextElY,
		nContextElHeight,

		bFlipped = false,

		nTopRegionHeight,
		nBottomRegionHeight,

		topConstraint = scrollY + nViewportOffset,
		bottomConstraint = scrollY + viewPortHeight - nMenuOffsetHeight - nViewportOffset,

		yNew = y;
		

	var flipVertical = function () {

		var nNewY;
	
		// The Menu is below the context element, flip it above
		if ((oMenu.cfg.getProperty(_Y) - scrollY) > nContextElY) { 
			nNewY = (nContextElY - nMenuOffsetHeight);
		}
		else {	// The Menu is above the context element, flip it below
			nNewY = (nContextElY + nContextElHeight);
		}

		oMenu.cfg.setProperty(_Y, (nNewY + scrollY), true);
		
		return nNewY;
	
	};


	/*
		 Uses the context element's position to calculate the availble height 
		 above and below it to display its corresponding Menu.
	*/

	var getDisplayRegionHeight = function () {

		// The Menu is below the context element
		if ((oMenu.cfg.getProperty(_Y) - scrollY) > nContextElY) {
			return (nBottomRegionHeight - nViewportOffset);				
		}
		else {	// The Menu is above the context element
			return (nTopRegionHeight - nViewportOffset);				
		}

	};


	/*
		Sets the Menu's "y" configuration property to the correct value based on its
		current orientation.
	*/ 

	var alignY = function () {

		var nNewY;

		if ((oMenu.cfg.getProperty(_Y) - scrollY) > nContextElY) { 
			nNewY = (nContextElY + nContextElHeight);
		}
		else {	
			nNewY = (nContextElY - oMenuEl.offsetHeight);
		}

		oMenu.cfg.setProperty(_Y, (nNewY + scrollY), true);
	
	};


	//	Resets the maxheight of the Menu to the value set by the user

	var resetMaxHeight = function () {

		oMenu._setScrollHeight(this.cfg.getProperty(_MAX_HEIGHT));

		oMenu.hideEvent.unsubscribe(resetMaxHeight);
	
	};


	/*
		Trys to place the Menu in the best possible position (either above or 
		below its corresponding context element).
	*/

	var setVerticalPosition = function () {

		var nDisplayRegionHeight = getDisplayRegionHeight(),
			bMenuHasItems = (oMenu.getItems().length > 0),
			nMenuMinScrollHeight,
			fnReturnVal;


		if (nMenuOffsetHeight > nDisplayRegionHeight) {

			nMenuMinScrollHeight = 
				bMenuHasItems ? oMenu.cfg.getProperty(_MIN_SCROLL_HEIGHT) : nMenuOffsetHeight;


			if ((nDisplayRegionHeight > nMenuMinScrollHeight) && bMenuHasItems) {
				nMaxHeight = nDisplayRegionHeight;
			}
			else {
				nMaxHeight = nInitialMaxHeight;
			}


			oMenu._setScrollHeight(nMaxHeight);
			oMenu.hideEvent.subscribe(resetMaxHeight);
			

			// Re-align the Menu since its height has just changed
			// as a result of the setting of the maxheight property.

			alignY();
			

			if (nDisplayRegionHeight < nMenuMinScrollHeight) {

				if (bFlipped) {
	
					/*
						 All possible positions and values for the "maxheight" 
						 configuration property have been tried, but none were 
						 successful, so fall back to the original size and position.
					*/

					flipVertical();
					
				}
				else {
	
					flipVertical();

					bFlipped = true;
	
					fnReturnVal = setVerticalPosition();
	
				}
				
			}
		
		}
		else if (nMaxHeight && (nMaxHeight !== nInitialMaxHeight)) {
		
			oMenu._setScrollHeight(nInitialMaxHeight);
			oMenu.hideEvent.subscribe(resetMaxHeight);

			// Re-align the Menu since its height has just changed
			// as a result of the setting of the maxheight property.

			alignY();
		
		}

		return fnReturnVal;

	};


	// Determine if the current value for the Menu's "y" configuration property will
	// result in the Menu being positioned outside the boundaries of the viewport

	if (y < topConstraint || y  > bottomConstraint) {

		// The current value for the Menu's "y" configuration property WILL
		// result in the Menu being positioned outside the boundaries of the viewport

		if (bCanConstrain) {

			if (oMenu.cfg.getProperty(_PREVENT_CONTEXT_OVERLAP) && bPotentialContextOverlap) {
		
				//	SOLUTION #1:
				//	If the "preventcontextoverlap" configuration property is set to "true", 
				//	try to flip and/or scroll the Menu to both keep it inside the boundaries of the 
				//	viewport AND from overlaping its context element (MenuItem or MenuBarItem).

				oContextEl = aContext[0];
				nContextElHeight = oContextEl.offsetHeight;
				nContextElY = (Dom.getY(oContextEl) - scrollY);
	
				nTopRegionHeight = nContextElY;
				nBottomRegionHeight = (viewPortHeight - (nContextElY + nContextElHeight));
	
				setVerticalPosition();
				
				yNew = oMenu.cfg.getProperty(_Y);
		
			}
			else if (!(oMenu instanceof YAHOO.widget.MenuBar) && 
				nMenuOffsetHeight >= viewPortHeight) {

				//	SOLUTION #2:
				//	If the Menu exceeds the height of the viewport, introduce scroll bars
				//	to keep the Menu inside the boundaries of the viewport

				nAvailableHeight = (viewPortHeight - (nViewportOffset * 2));
		
				if (nAvailableHeight > oMenu.cfg.getProperty(_MIN_SCROLL_HEIGHT)) {
		
					oMenu._setScrollHeight(nAvailableHeight);
					oMenu.hideEvent.subscribe(resetMaxHeight);
		
					alignY();
					
					yNew = oMenu.cfg.getProperty(_Y);
				
				}
		
			}	
			else {

				//	SOLUTION #3:
			
				if (y < topConstraint) {
					yNew  = topConstraint;
				} else if (y  > bottomConstraint) {
					yNew  = bottomConstraint;
				}				
			
			}

		}
		else {
			//	The "y" configuration property cannot be set to a value that will keep
			//	entire Menu inside the boundary of the viewport.  Therefore, set  
			//	the "y" configuration property to scrollY to keep as much of the 
			//	Menu inside the viewport as possible.
			yNew = nViewportOffset + scrollY;
		}	

	}

	return yNew;

},


/**
* @method _onHide
* @description "hide" event handler for the menu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onHide: function (p_sType, p_aArgs) {

	if (this.cfg.getProperty(_POSITION) === _DYNAMIC) {
	
		this.positionOffScreen();
	
	}

},


/**
* @method _onShow
* @description "show" event handler for the menu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onShow: function (p_sType, p_aArgs) {

    var oParent = this.parent,
        oParentMenu,
		oElement,
		nOffsetWidth,
		sWidth;        


    function disableAutoSubmenuDisplay(p_oEvent) {

        var oTarget;

        if (p_oEvent.type == _MOUSEDOWN || (p_oEvent.type == _KEYDOWN && p_oEvent.keyCode == 27)) {

            /*  
                Set the "autosubmenudisplay" to "false" if the user
                clicks outside the menu bar.
            */

            oTarget = Event.getTarget(p_oEvent);

            if (oTarget != oParentMenu.element || !Dom.isAncestor(oParentMenu.element, oTarget)) {

                oParentMenu.cfg.setProperty(_AUTO_SUBMENU_DISPLAY, false);

                Event.removeListener(document, _MOUSEDOWN, disableAutoSubmenuDisplay);
                Event.removeListener(document, _KEYDOWN, disableAutoSubmenuDisplay);

            }
        
        }

    }


	function onSubmenuHide(p_sType, p_aArgs, p_sWidth) {
	
		this.cfg.setProperty(_WIDTH, _EMPTY_STRING);
		this.hideEvent.unsubscribe(onSubmenuHide, p_sWidth);
	
	}


    if (oParent) {

        oParentMenu = oParent.parent;


        if (!oParentMenu.cfg.getProperty(_AUTO_SUBMENU_DISPLAY) && 
            (oParentMenu instanceof YAHOO.widget.MenuBar || 
            oParentMenu.cfg.getProperty(_POSITION) == _STATIC)) {

            oParentMenu.cfg.setProperty(_AUTO_SUBMENU_DISPLAY, true);

            Event.on(document, _MOUSEDOWN, disableAutoSubmenuDisplay);                             
            Event.on(document, _KEYDOWN, disableAutoSubmenuDisplay);

        }


		//	The following fixes an issue with the selected state of a MenuItem 
		//	not rendering correctly when a submenu is aligned to the left of
		//	its parent Menu instance.

		if ((this.cfg.getProperty("x") < oParentMenu.cfg.getProperty("x")) && 
			(UA.gecko && UA.gecko < 1.9) && !this.cfg.getProperty(_WIDTH)) {

			oElement = this.element;
			nOffsetWidth = oElement.offsetWidth;
			
			/*
				Measuring the difference of the offsetWidth before and after
				setting the "width" style attribute allows us to compute the 
				about of padding and borders applied to the element, which in 
				turn allows us to set the "width" property correctly.
			*/
			
			oElement.style.width = nOffsetWidth + _PX;
			
			sWidth = (nOffsetWidth - (oElement.offsetWidth - nOffsetWidth)) + _PX;
			
			this.cfg.setProperty(_WIDTH, sWidth);
		
			this.hideEvent.subscribe(onSubmenuHide, sWidth);
		
		}

    }

},


/**
* @method _onBeforeHide
* @description "beforehide" event handler for the menu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
*/
_onBeforeHide: function (p_sType, p_aArgs) {

    var oActiveItem = this.activeItem,
        oRoot = this.getRoot(),
        oConfig,
        oSubmenu;


    if (oActiveItem) {

        oConfig = oActiveItem.cfg;

        oConfig.setProperty(_SELECTED, false);

        oSubmenu = oConfig.getProperty(_SUBMENU);

        if (oSubmenu) {

            oSubmenu.hide();

        }

    }


	/*
		Focus can get lost in IE when the mouse is moving from a submenu back to its parent Menu.  
		For this reason, it is necessary to maintain the focused state in a private property 
		so that the _onMouseOver event handler is able to determined whether or not to set focus
		to MenuItems as the user is moving the mouse.
	*/ 

	if (UA.ie && this.cfg.getProperty(_POSITION) === _DYNAMIC && this.parent) {

		oRoot._hasFocus = this.hasFocus();
	
	}


    if (oRoot == this) {

        oRoot.blur();
    
    }

},


/**
* @method _onParentMenuConfigChange
* @description "configchange" event handler for a submenu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oSubmenu Object representing the submenu that 
* subscribed to the event.
*/
_onParentMenuConfigChange: function (p_sType, p_aArgs, p_oSubmenu) {
    
    var sPropertyName = p_aArgs[0][0],
        oPropertyValue = p_aArgs[0][1];

    switch(sPropertyName) {

        case _IFRAME:
        case _CONSTRAIN_TO_VIEWPORT:
        case _HIDE_DELAY:
        case _SHOW_DELAY:
        case _SUBMENU_HIDE_DELAY:
        case _CLICK_TO_HIDE:
        case _EFFECT:
        case _CLASSNAME:
        case _SCROLL_INCREMENT:
        case _MAX_HEIGHT:
        case _MIN_SCROLL_HEIGHT:
        case _MONITOR_RESIZE:
        case _SHADOW:
        case _PREVENT_CONTEXT_OVERLAP:

            p_oSubmenu.cfg.setProperty(sPropertyName, oPropertyValue);
                
        break;
        
        case _SUBMENU_ALIGNMENT:

			if (!(this.parent.parent instanceof YAHOO.widget.MenuBar)) {
		
				p_oSubmenu.cfg.setProperty(sPropertyName, oPropertyValue);
		
			}
        
        break;
        
    }
    
},


/**
* @method _onParentMenuRender
* @description "render" event handler for a submenu.  Renders a  
* submenu in response to the firing of its parent's "render" event.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oSubmenu Object representing the submenu that 
* subscribed to the event.
*/
_onParentMenuRender: function (p_sType, p_aArgs, p_oSubmenu) {

    var oParentMenu = p_oSubmenu.parent.parent,
    	oParentCfg = oParentMenu.cfg,

        oConfig = {

            constraintoviewport: oParentCfg.getProperty(_CONSTRAIN_TO_VIEWPORT),

            xy: [0,0],

            clicktohide: oParentCfg.getProperty(_CLICK_TO_HIDE),
                
            effect: oParentCfg.getProperty(_EFFECT),

            showdelay: oParentCfg.getProperty(_SHOW_DELAY),
            
            hidedelay: oParentCfg.getProperty(_HIDE_DELAY),

            submenuhidedelay: oParentCfg.getProperty(_SUBMENU_HIDE_DELAY),

            classname: oParentCfg.getProperty(_CLASSNAME),
            
            scrollincrement: oParentCfg.getProperty(_SCROLL_INCREMENT),
            
			maxheight: oParentCfg.getProperty(_MAX_HEIGHT),

            minscrollheight: oParentCfg.getProperty(_MIN_SCROLL_HEIGHT),
            
            iframe: oParentCfg.getProperty(_IFRAME),
            
            shadow: oParentCfg.getProperty(_SHADOW),

			preventcontextoverlap: oParentCfg.getProperty(_PREVENT_CONTEXT_OVERLAP),
            
            monitorresize: oParentCfg.getProperty(_MONITOR_RESIZE)

        },
        
        oLI;


	
	if (!(oParentMenu instanceof YAHOO.widget.MenuBar)) {

		oConfig[_SUBMENU_ALIGNMENT] = oParentCfg.getProperty(_SUBMENU_ALIGNMENT);

	}


    p_oSubmenu.cfg.applyConfig(oConfig);


    if (!this.lazyLoad) {

        oLI = this.parent.element;

        if (this.element.parentNode == oLI) {
    
            this.render();
    
        }
        else {

            this.render(oLI);
    
        }

    }
    
},


/**
* @method _onMenuItemDestroy
* @description "destroy" event handler for the menu's items.
* @private
* @param {String} p_sType String representing the name of the event 
* that was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item 
* that fired the event.
*/
_onMenuItemDestroy: function (p_sType, p_aArgs, p_oItem) {

    this._removeItemFromGroupByValue(p_oItem.groupIndex, p_oItem);

},


/**
* @method _onMenuItemConfigChange
* @description "configchange" event handler for the menu's items.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item 
* that fired the event.
*/
_onMenuItemConfigChange: function (p_sType, p_aArgs, p_oItem) {

    var sPropertyName = p_aArgs[0][0],
        oPropertyValue = p_aArgs[0][1],
        oSubmenu;


    switch(sPropertyName) {

        case _SELECTED:

            if (oPropertyValue === true) {

                this.activeItem = p_oItem;
            
            }

        break;

        case _SUBMENU:

            oSubmenu = p_aArgs[0][1];

            if (oSubmenu) {

                this._configureSubmenu(p_oItem);

            }

        break;

    }

},



// Public event handlers for configuration properties


/**
* @method configVisible
* @description Event handler for when the "visible" configuration property 
* the menu changes.
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oMenu Object representing the menu that 
* fired the event.
*/
configVisible: function (p_sType, p_aArgs, p_oMenu) {

    var bVisible,
        sDisplay;

    if (this.cfg.getProperty(_POSITION) == _DYNAMIC) {

        Menu.superclass.configVisible.call(this, p_sType, p_aArgs, p_oMenu);

    }
    else {

        bVisible = p_aArgs[0];
        sDisplay = Dom.getStyle(this.element, _DISPLAY);

        Dom.setStyle(this.element, _VISIBILITY, _VISIBLE);

        if (bVisible) {

            if (sDisplay != _BLOCK) {
                this.beforeShowEvent.fire();
                Dom.setStyle(this.element, _DISPLAY, _BLOCK);
                this.showEvent.fire();
            }
        
        }
        else {

			if (sDisplay == _BLOCK) {
				this.beforeHideEvent.fire();
				Dom.setStyle(this.element, _DISPLAY, _NONE);
				this.hideEvent.fire();
			}
        
        }

    }

},


/**
* @method configPosition
* @description Event handler for when the "position" configuration property 
* of the menu changes.
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oMenu Object representing the menu that 
* fired the event.
*/
configPosition: function (p_sType, p_aArgs, p_oMenu) {

    var oElement = this.element,
        sCSSPosition = p_aArgs[0] == _STATIC ? _STATIC : _ABSOLUTE,
        oCfg = this.cfg,
        nZIndex;


    Dom.setStyle(oElement, _POSITION, sCSSPosition);


    if (sCSSPosition == _STATIC) {

        // Statically positioned menus are visible by default
        
        Dom.setStyle(oElement, _DISPLAY, _BLOCK);

        oCfg.setProperty(_VISIBLE, true);

    }
    else {

        /*
            Even though the "visible" property is queued to 
            "false" by default, we need to set the "visibility" property to 
            "hidden" since Overlay's "configVisible" implementation checks the 
            element's "visibility" style property before deciding whether 
            or not to show an Overlay instance.
        */

        Dom.setStyle(oElement, _VISIBILITY, _HIDDEN);
    
    }

  	 
     if (sCSSPosition == _ABSOLUTE) { 	 
  	 
         nZIndex = oCfg.getProperty(_ZINDEX);
  	 
         if (!nZIndex || nZIndex === 0) { 	 
  	 
             oCfg.setProperty(_ZINDEX, 1); 	 
  	 
         } 	 
  	 
     }

},


/**
* @method configIframe
* @description Event handler for when the "iframe" configuration property of 
* the menu changes.
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oMenu Object representing the menu that 
* fired the event.
*/
configIframe: function (p_sType, p_aArgs, p_oMenu) {    

    if (this.cfg.getProperty(_POSITION) == _DYNAMIC) {

        Menu.superclass.configIframe.call(this, p_sType, p_aArgs, p_oMenu);

    }

},


/**
* @method configHideDelay
* @description Event handler for when the "hidedelay" configuration property 
* of the menu changes.
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oMenu Object representing the menu that 
* fired the event.
*/
configHideDelay: function (p_sType, p_aArgs, p_oMenu) {

    var nHideDelay = p_aArgs[0];

	this._useHideDelay = (nHideDelay > 0);

},


/**
* @method configContainer
* @description Event handler for when the "container" configuration property 
* of the menu changes.
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oMenu Object representing the menu that 
* fired the event.
*/
configContainer: function (p_sType, p_aArgs, p_oMenu) {

	var oElement = p_aArgs[0];

	if (Lang.isString(oElement)) {

        this.cfg.setProperty(_CONTAINER, Dom.get(oElement), true);

	}

},


/**
* @method _clearSetWidthFlag
* @description Change event listener for the "width" configuration property.  This listener is 
* added when a Menu's "width" configuration property is set by the "_setScrollHeight" method, and 
* is used to set the "_widthSetForScroll" property to "false" if the "width" configuration property 
* is changed after it was set by the "_setScrollHeight" method.  If the "_widthSetForScroll" 
* property is set to "false", and the "_setScrollHeight" method is in the process of tearing down 
* scrolling functionality, it will maintain the Menu's new width rather than reseting it.
* @private
*/
_clearSetWidthFlag: function () {

	this._widthSetForScroll = false;
	
	this.cfg.unsubscribeFromConfigEvent(_WIDTH, this._clearSetWidthFlag);

},


/**
* @method _setScrollHeight
* @description 
* @param {String} p_nScrollHeight Number representing the scrolling height of the Menu.
* @private
*/
_setScrollHeight: function (p_nScrollHeight) {

    var nScrollHeight = p_nScrollHeight,
		bRefireIFrameAndShadow = false,
		bSetWidth = false,
        oElement,
        oBody,
        oHeader,
        oFooter,
        fnMouseOver,
        fnMouseOut,
        nMinScrollHeight,
        nHeight,
        nOffsetWidth,
        sWidth;


	if (this.getItems().length > 0) {
	
        oElement = this.element;
        oBody = this.body;
        oHeader = this.header;
        oFooter = this.footer;
        fnMouseOver = this._onScrollTargetMouseOver;
        fnMouseOut = this._onScrollTargetMouseOut;
        nMinScrollHeight = this.cfg.getProperty(_MIN_SCROLL_HEIGHT);


		if (nScrollHeight > 0 && nScrollHeight < nMinScrollHeight) {
		
			nScrollHeight = nMinScrollHeight;
		
		}


		Dom.setStyle(oBody, _HEIGHT, _EMPTY_STRING);
		Dom.removeClass(oBody, _YUI_MENU_BODY_SCROLLED);
		oBody.scrollTop = 0;


		//	Need to set a width for the Menu to fix the following problems in 
		//	Firefox 2 and IE:

		//	#1) Scrolled Menus will render at 1px wide in Firefox 2

		//	#2) There is a bug in gecko-based browsers where an element whose 
		//	"position" property is set to "absolute" and "overflow" property is 
		//	set to "hidden" will not render at the correct width when its 
		//	offsetParent's "position" property is also set to "absolute."  It is 
		//	possible to work around this bug by specifying a value for the width 
		//	property in addition to overflow.

		//	#3) In IE it is necessary to give the Menu a width before the 
		//	scrollbars are rendered to prevent the Menu from rendering with a 
		//	width that is 100% of the browser viewport.
	
		bSetWidth = ((UA.gecko && UA.gecko < 1.9) || UA.ie);

		if (nScrollHeight > 0 && bSetWidth && !this.cfg.getProperty(_WIDTH)) {

			nOffsetWidth = oElement.offsetWidth;
	
			/*
				Measuring the difference of the offsetWidth before and after
				setting the "width" style attribute allows us to compute the 
				about of padding and borders applied to the element, which in 
				turn allows us to set the "width" property correctly.
			*/
			
			oElement.style.width = nOffsetWidth + _PX;
	
			sWidth = (nOffsetWidth - (oElement.offsetWidth - nOffsetWidth)) + _PX;


			this.cfg.unsubscribeFromConfigEvent(_WIDTH, this._clearSetWidthFlag);


			this.cfg.setProperty(_WIDTH, sWidth);


			/*
				Set a flag (_widthSetForScroll) to maintain some history regarding how the 
				"width" configuration property was set.  If the "width" configuration property 
				is set by something other than the "_setScrollHeight" method, it will be 
				necessary to maintain that new value and not clear the width if scrolling 
				is turned off.
			*/

			this._widthSetForScroll = true;

			this.cfg.subscribeToConfigEvent(_WIDTH, this._clearSetWidthFlag);
	
		}
	
	
		if (nScrollHeight > 0 && (!oHeader && !oFooter)) {
	
	
			this.setHeader(_NON_BREAKING_SPACE);
			this.setFooter(_NON_BREAKING_SPACE);
	
			oHeader = this.header;
			oFooter = this.footer;
	
			Dom.addClass(oHeader, _TOP_SCROLLBAR);
			Dom.addClass(oFooter, _BOTTOM_SCROLLBAR);
			
			oElement.insertBefore(oHeader, oBody);
			oElement.appendChild(oFooter);
		
		}
	
	
		nHeight = nScrollHeight;
	
	
		if (oHeader && oFooter) {
			nHeight = (nHeight - (oHeader.offsetHeight + oFooter.offsetHeight));
		}
	
	
		if ((nHeight > 0) && (oBody.offsetHeight > nScrollHeight)) {

	
			Dom.addClass(oBody, _YUI_MENU_BODY_SCROLLED);
			Dom.setStyle(oBody, _HEIGHT, (nHeight + _PX));

			if (!this._hasScrollEventHandlers) {
	
				Event.on(oHeader, _MOUSEOVER, fnMouseOver, this, true);
				Event.on(oHeader, _MOUSEOUT, fnMouseOut, this, true);
				Event.on(oFooter, _MOUSEOVER, fnMouseOver, this, true);
				Event.on(oFooter, _MOUSEOUT, fnMouseOut, this, true);
	
				this._hasScrollEventHandlers = true;
	
			}
	
			this._disableScrollHeader();
			this._enableScrollFooter();
			
			bRefireIFrameAndShadow = true;			
	
		}
		else if (oHeader && oFooter) {

	

			/*
				Only clear the the "width" configuration property if it was set the 
				"_setScrollHeight" method and wasn't changed by some other means after it was set.
			*/	
	
			if (this._widthSetForScroll) {
	

				this._widthSetForScroll = false;

				this.cfg.unsubscribeFromConfigEvent(_WIDTH, this._clearSetWidthFlag);
	
				this.cfg.setProperty(_WIDTH, _EMPTY_STRING);
			
			}
	
	
			this._enableScrollHeader();
			this._enableScrollFooter();
	
			if (this._hasScrollEventHandlers) {
	
				Event.removeListener(oHeader, _MOUSEOVER, fnMouseOver);
				Event.removeListener(oHeader, _MOUSEOUT, fnMouseOut);
				Event.removeListener(oFooter, _MOUSEOVER, fnMouseOver);
				Event.removeListener(oFooter, _MOUSEOUT, fnMouseOut);

				this._hasScrollEventHandlers = false;
	
			}

			oElement.removeChild(oHeader);
			oElement.removeChild(oFooter);
	
			this.header = null;
			this.footer = null;
			
			bRefireIFrameAndShadow = true;
		
		}


		if (bRefireIFrameAndShadow) {
	
			this.cfg.refireEvent(_IFRAME);
			this.cfg.refireEvent(_SHADOW);
		
		}
	
	}

},


/**
* @method _setMaxHeight
* @description "renderEvent" handler used to defer the setting of the 
* "maxheight" configuration property until the menu is rendered in lazy 
* load scenarios.
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event 
* was fired.
* @param {Number} p_nMaxHeight Number representing the value to set for the 
* "maxheight" configuration property.
* @private
*/
_setMaxHeight: function (p_sType, p_aArgs, p_nMaxHeight) {

    this._setScrollHeight(p_nMaxHeight);
    this.renderEvent.unsubscribe(this._setMaxHeight);

},


/**
* @method configMaxHeight
* @description Event handler for when the "maxheight" configuration property of 
* a Menu changes.
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event 
* was fired.
* @param {YAHOO.widget.Menu} p_oMenu The Menu instance fired
* the event.
*/
configMaxHeight: function (p_sType, p_aArgs, p_oMenu) {

	var nMaxHeight = p_aArgs[0];

	if (this.lazyLoad && !this.body && nMaxHeight > 0) {
	
		this.renderEvent.subscribe(this._setMaxHeight, nMaxHeight, this);

	}
	else {

		this._setScrollHeight(nMaxHeight);
	
	}

},


/**
* @method configClassName
* @description Event handler for when the "classname" configuration property of 
* a menu changes.
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oMenu The Menu instance fired the event.
*/
configClassName: function (p_sType, p_aArgs, p_oMenu) {

    var sClassName = p_aArgs[0];

    if (this._sClassName) {

        Dom.removeClass(this.element, this._sClassName);

    }

    Dom.addClass(this.element, sClassName);
    this._sClassName = sClassName;

},


/**
* @method _onItemAdded
* @description "itemadded" event handler for a Menu instance.
* @private
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event 
* was fired.
*/
_onItemAdded: function (p_sType, p_aArgs) {

    var oItem = p_aArgs[0];
    
    if (oItem) {

        oItem.cfg.setProperty(_DISABLED, true);
    
    }

},


/**
* @method configDisabled
* @description Event handler for when the "disabled" configuration property of 
* a menu changes.
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oMenu The Menu instance fired the event.
*/
configDisabled: function (p_sType, p_aArgs, p_oMenu) {

    var bDisabled = p_aArgs[0],
        aItems = this.getItems(),
        nItems,
        i;

    if (Lang.isArray(aItems)) {

        nItems = aItems.length;
    
        if (nItems > 0) {
        
            i = nItems - 1;
    
            do {
    
                aItems[i].cfg.setProperty(_DISABLED, bDisabled);
            
            }
            while (i--);
        
        }


        if (bDisabled) {

            this.clearActiveItem(true);

            Dom.addClass(this.element, _DISABLED);

            this.itemAddedEvent.subscribe(this._onItemAdded);

        }
        else {

            Dom.removeClass(this.element, _DISABLED);

            this.itemAddedEvent.unsubscribe(this._onItemAdded);

        }
        
    }

},


/**
* @method configShadow
* @description Event handler for when the "shadow" configuration property of 
* a menu changes.
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event was fired.
* @param {YAHOO.widget.Menu} p_oMenu The Menu instance fired the event.
*/
configShadow: function (p_sType, p_aArgs, p_oMenu) {

    var sizeShadow = function () {

        var oElement = this.element,
            oShadow = this._shadow;
    
        if (oShadow && oElement) {

			// Clear the previous width

			if (oShadow.style.width && oShadow.style.height) {
			
				oShadow.style.width = _EMPTY_STRING;
				oShadow.style.height = _EMPTY_STRING;
			
			}

            oShadow.style.width = (oElement.offsetWidth + 6) + _PX;
            oShadow.style.height = (oElement.offsetHeight + 1) + _PX;
            
        }
    
    };


    var replaceShadow = function () {

        this.element.appendChild(this._shadow);

    };


    var addShadowVisibleClass = function () {
    
        Dom.addClass(this._shadow, _YUI_MENU_SHADOW_VISIBLE);
    
    };
    

    var removeShadowVisibleClass = function () {

        Dom.removeClass(this._shadow, _YUI_MENU_SHADOW_VISIBLE);
    
    };


    var createShadow = function () {

        var oShadow = this._shadow,
            oElement;

        if (!oShadow) {

            oElement = this.element;


            if (!m_oShadowTemplate) {

                m_oShadowTemplate = document.createElement(_DIV_LOWERCASE);
                m_oShadowTemplate.className = _YUI_MENU_SHADOW_YUI_MENU_SHADOW_VISIBLE;
            
            }

            oShadow = m_oShadowTemplate.cloneNode(false);

            oElement.appendChild(oShadow);
            
            this._shadow = oShadow;

            this.beforeShowEvent.subscribe(addShadowVisibleClass);
            this.beforeHideEvent.subscribe(removeShadowVisibleClass);


            if (UA.ie) {
        
                /*
                     Need to call sizeShadow & syncIframe via setTimeout for 
                     IE 7 Quirks Mode and IE 6 Standards Mode and Quirks Mode 
                     or the shadow and iframe shim will not be sized and 
                     positioned properly.
                */
        
				Lang.later(0, this, function () {

                    sizeShadow.call(this); 
                    this.syncIframe();
				
				});


                this.cfg.subscribeToConfigEvent(_WIDTH, sizeShadow);
                this.cfg.subscribeToConfigEvent(_HEIGHT, sizeShadow);
                this.cfg.subscribeToConfigEvent(_MAX_HEIGHT, sizeShadow);
                this.changeContentEvent.subscribe(sizeShadow);

                Module.textResizeEvent.subscribe(sizeShadow, this, true);
                
                this.destroyEvent.subscribe(function () {
                
                    Module.textResizeEvent.unsubscribe(sizeShadow, this);
                
                });
        
            }

            this.cfg.subscribeToConfigEvent(_MAX_HEIGHT, replaceShadow);

        }

    };


    var onBeforeShow = function () {

    	if (this._shadow) {

			// If called because the "shadow" event was refired - just append again and resize
			
			replaceShadow.call(this);
			
			if (UA.ie) {
				sizeShadow.call(this);
			}
    	
    	}
    	else {
    
        	createShadow.call(this);
        
        }

        this.beforeShowEvent.unsubscribe(onBeforeShow);
    
    };


	var bShadow = p_aArgs[0];


    if (bShadow && this.cfg.getProperty(_POSITION) == _DYNAMIC) {

        if (this.cfg.getProperty(_VISIBLE)) {

			if (this._shadow) {

				// If the "shadow" event was refired - just append again and resize
				
				replaceShadow.call(this);
				
				if (UA.ie) {
					sizeShadow.call(this);
				}
				
			} 
			else {
            	createShadow.call(this);
            }
        
        }
        else {

            this.beforeShowEvent.subscribe(onBeforeShow);
        
        }
    
    }
    
},



// Public methods


/**
* @method initEvents
* @description Initializes the custom events for the menu.
*/
initEvents: function () {

	Menu.superclass.initEvents.call(this);

    // Create custom events

	var i = EVENT_TYPES.length - 1,
		aEventData,
		oCustomEvent;


	do {

		aEventData = EVENT_TYPES[i];

		oCustomEvent = this.createEvent(aEventData[1]);
		oCustomEvent.signature = CustomEvent.LIST;
		
		this[aEventData[0]] = oCustomEvent;

	}
	while (i--);

},


/**
* @method positionOffScreen
* @description Positions the menu outside of the boundaries of the browser's 
* viewport.  Called automatically when a menu is hidden to ensure that 
* it doesn't force the browser to render uncessary scrollbars.
*/
positionOffScreen: function () {

    var oIFrame = this.iframe,
    	oElement = this.element,
        sPos = this.OFF_SCREEN_POSITION;
    
    oElement.style.top = _EMPTY_STRING;
    oElement.style.left = _EMPTY_STRING;
    
    if (oIFrame) {

		oIFrame.style.top = sPos;
		oIFrame.style.left = sPos;
    
    }

},


/**
* @method getRoot
* @description Finds the menu's root menu.
*/
getRoot: function () {

    var oItem = this.parent,
        oParentMenu,
        returnVal;

    if (oItem) {

        oParentMenu = oItem.parent;

        returnVal = oParentMenu ? oParentMenu.getRoot() : this;

    }
    else {
    
        returnVal = this;
    
    }
    
    return returnVal;

},


/**
* @method toString
* @description Returns a string representing the menu.
* @return {String}
*/
toString: function () {

    var sReturnVal = _MENU,
        sId = this.id;

    if (sId) {

        sReturnVal += (_SPACE + sId);
    
    }

    return sReturnVal;

},


/**
* @method setItemGroupTitle
* @description Sets the title of a group of menu items.
* @param {String} p_sGroupTitle String specifying the title of the group.
* @param {Number} p_nGroupIndex Optional. Number specifying the group to which
* the title belongs.
*/
setItemGroupTitle: function (p_sGroupTitle, p_nGroupIndex) {

    var nGroupIndex,
        oTitle,
        i,
        nFirstIndex;
        
    if (Lang.isString(p_sGroupTitle) && p_sGroupTitle.length > 0) {

        nGroupIndex = Lang.isNumber(p_nGroupIndex) ? p_nGroupIndex : 0;
        oTitle = this._aGroupTitleElements[nGroupIndex];


        if (oTitle) {

            oTitle.innerHTML = p_sGroupTitle;
            
        }
        else {

            oTitle = document.createElement(this.GROUP_TITLE_TAG_NAME);
                    
            oTitle.innerHTML = p_sGroupTitle;

            this._aGroupTitleElements[nGroupIndex] = oTitle;

        }


        i = this._aGroupTitleElements.length - 1;

        do {

            if (this._aGroupTitleElements[i]) {

                Dom.removeClass(this._aGroupTitleElements[i], _FIRST_OF_TYPE);

                nFirstIndex = i;

            }

        }
        while (i--);


        if (nFirstIndex !== null) {

            Dom.addClass(this._aGroupTitleElements[nFirstIndex], 
                _FIRST_OF_TYPE);

        }

        this.changeContentEvent.fire();

    }

},



/**
* @method addItem
* @description Appends an item to the menu.
* @param {YAHOO.widget.MenuItem} p_oItem Object reference for the MenuItem 
* instance to be added to the menu.
* @param {String} p_oItem String specifying the text of the item to be added 
* to the menu.
* @param {Object} p_oItem Object literal containing a set of menu item 
* configuration properties.
* @param {Number} p_nGroupIndex Optional. Number indicating the group to
* which the item belongs.
* @return {YAHOO.widget.MenuItem}
*/
addItem: function (p_oItem, p_nGroupIndex) {

	return this._addItemToGroup(p_nGroupIndex, p_oItem);

},


/**
* @method addItems
* @description Adds an array of items to the menu.
* @param {Array} p_aItems Array of items to be added to the menu.  The array 
* can contain strings specifying the text for each item to be created, object
* literals specifying each of the menu item configuration properties, 
* or MenuItem instances.
* @param {Number} p_nGroupIndex Optional. Number specifying the group to 
* which the items belongs.
* @return {Array}
*/
addItems: function (p_aItems, p_nGroupIndex) {

    var nItems,
        aItems,
        oItem,
        i,
        returnVal;


    if (Lang.isArray(p_aItems)) {

        nItems = p_aItems.length;
        aItems = [];

        for(i=0; i<nItems; i++) {

            oItem = p_aItems[i];

            if (oItem) {

                if (Lang.isArray(oItem)) {
    
                    aItems[aItems.length] = this.addItems(oItem, i);
    
                }
                else {
    
                    aItems[aItems.length] = this._addItemToGroup(p_nGroupIndex, oItem);
                
                }

            }
    
        }


        if (aItems.length) {
        
            returnVal = aItems;
        
        }

    }

	return returnVal;

},


/**
* @method insertItem
* @description Inserts an item into the menu at the specified index.
* @param {YAHOO.widget.MenuItem} p_oItem Object reference for the MenuItem 
* instance to be added to the menu.
* @param {String} p_oItem String specifying the text of the item to be added 
* to the menu.
* @param {Object} p_oItem Object literal containing a set of menu item 
* configuration properties.
* @param {Number} p_nItemIndex Number indicating the ordinal position at which
* the item should be added.
* @param {Number} p_nGroupIndex Optional. Number indicating the group to which 
* the item belongs.
* @return {YAHOO.widget.MenuItem}
*/
insertItem: function (p_oItem, p_nItemIndex, p_nGroupIndex) {
    
	return this._addItemToGroup(p_nGroupIndex, p_oItem, p_nItemIndex);

},


/**
* @method removeItem
* @description Removes the specified item from the menu.
* @param {YAHOO.widget.MenuItem} p_oObject Object reference for the MenuItem 
* instance to be removed from the menu.
* @param {Number} p_oObject Number specifying the index of the item 
* to be removed.
* @param {Number} p_nGroupIndex Optional. Number specifying the group to 
* which the item belongs.
* @return {YAHOO.widget.MenuItem}
*/
removeItem: function (p_oObject, p_nGroupIndex) {

    var oItem,
    	returnVal;
    
    if (!Lang.isUndefined(p_oObject)) {

        if (p_oObject instanceof YAHOO.widget.MenuItem) {

            oItem = this._removeItemFromGroupByValue(p_nGroupIndex, p_oObject);           

        }
        else if (Lang.isNumber(p_oObject)) {

            oItem = this._removeItemFromGroupByIndex(p_nGroupIndex, p_oObject);

        }

        if (oItem) {

            oItem.destroy();


            returnVal = oItem;

        }

    }

	return returnVal;

},


/**
* @method getItems
* @description Returns an array of all of the items in the menu.
* @return {Array}
*/
getItems: function () {

    var aGroups = this._aItemGroups,
        nGroups,
        returnVal,
        aItems = [];


    if (Lang.isArray(aGroups)) {

        nGroups = aGroups.length;

        returnVal = ((nGroups == 1) ? aGroups[0] : (Array.prototype.concat.apply(aItems, aGroups)));

    }

	return returnVal;

},


/**
* @method getItemGroups
* @description Multi-dimensional Array representing the menu items as they 
* are grouped in the menu.
* @return {Array}
*/        
getItemGroups: function () {

    return this._aItemGroups;

},


/**
* @method getItem
* @description Returns the item at the specified index.
* @param {Number} p_nItemIndex Number indicating the ordinal position of the 
* item to be retrieved.
* @param {Number} p_nGroupIndex Optional. Number indicating the group to which 
* the item belongs.
* @return {YAHOO.widget.MenuItem}
*/
getItem: function (p_nItemIndex, p_nGroupIndex) {
    
    var aGroup,
    	returnVal;
    
    if (Lang.isNumber(p_nItemIndex)) {

        aGroup = this._getItemGroup(p_nGroupIndex);

        if (aGroup) {

            returnVal = aGroup[p_nItemIndex];
        
        }

    }
    
    return returnVal;
    
},


/**
* @method getSubmenus
* @description Returns an array of all of the submenus that are immediate 
* children of the menu.
* @return {Array}
*/
getSubmenus: function () {

    var aItems = this.getItems(),
        nItems = aItems.length,
        aSubmenus,
        oSubmenu,
        oItem,
        i;


    if (nItems > 0) {
        
        aSubmenus = [];

        for(i=0; i<nItems; i++) {

            oItem = aItems[i];
            
            if (oItem) {

                oSubmenu = oItem.cfg.getProperty(_SUBMENU);
                
                if (oSubmenu) {

                    aSubmenus[aSubmenus.length] = oSubmenu;

                }
            
            }
        
        }
    
    }

    return aSubmenus;

},


/**
* @method clearContent
* @description Removes all of the content from the menu, including the menu 
* items, group titles, header and footer.
*/
clearContent: function () {

    var aItems = this.getItems(),
        nItems = aItems.length,
        oElement = this.element,
        oBody = this.body,
        oHeader = this.header,
        oFooter = this.footer,
        oItem,
        oSubmenu,
        i;


    if (nItems > 0) {

        i = nItems - 1;

        do {

            oItem = aItems[i];

            if (oItem) {

                oSubmenu = oItem.cfg.getProperty(_SUBMENU);

                if (oSubmenu) {

                    this.cfg.configChangedEvent.unsubscribe(
                        this._onParentMenuConfigChange, oSubmenu);

                    this.renderEvent.unsubscribe(this._onParentMenuRender, 
                        oSubmenu);

                }
                
                this.removeItem(oItem, oItem.groupIndex);

            }
        
        }
        while (i--);

    }


    if (oHeader) {

        Event.purgeElement(oHeader);
        oElement.removeChild(oHeader);

    }
    

    if (oFooter) {

        Event.purgeElement(oFooter);
        oElement.removeChild(oFooter);
    }


    if (oBody) {

        Event.purgeElement(oBody);

        oBody.innerHTML = _EMPTY_STRING;

    }

    this.activeItem = null;

    this._aItemGroups = [];
    this._aListElements = [];
    this._aGroupTitleElements = [];

    this.cfg.setProperty(_WIDTH, null);

},


/**
* @method destroy
* @description Removes the menu's <code>&#60;div&#62;</code> element 
* (and accompanying child nodes) from the document.
*/
destroy: function () {

    // Remove all items

    this.clearContent();

    this._aItemGroups = null;
    this._aListElements = null;
    this._aGroupTitleElements = null;


    // Continue with the superclass implementation of this method

    Menu.superclass.destroy.call(this);
    

},


/**
* @method setInitialFocus
* @description Sets focus to the menu's first enabled item.
*/
setInitialFocus: function () {

    var oItem = this._getFirstEnabledItem();
    
    if (oItem) {

        oItem.focus();

    }
    
},


/**
* @method setInitialSelection
* @description Sets the "selected" configuration property of the menu's first 
* enabled item to "true."
*/
setInitialSelection: function () {

    var oItem = this._getFirstEnabledItem();
    
    if (oItem) {
    
        oItem.cfg.setProperty(_SELECTED, true);
    }        

},


/**
* @method clearActiveItem
* @description Sets the "selected" configuration property of the menu's active
* item to "false" and hides the item's submenu.
* @param {Boolean} p_bBlur Boolean indicating if the menu's active item 
* should be blurred.  
*/
clearActiveItem: function (p_bBlur) {

    if (this.cfg.getProperty(_SHOW_DELAY) > 0) {
    
        this._cancelShowDelay();
    
    }


    var oActiveItem = this.activeItem,
        oConfig,
        oSubmenu;

    if (oActiveItem) {

        oConfig = oActiveItem.cfg;

        if (p_bBlur) {

            oActiveItem.blur();
            
            this.getRoot()._hasFocus = true;
        
        }

        oConfig.setProperty(_SELECTED, false);

        oSubmenu = oConfig.getProperty(_SUBMENU);


        if (oSubmenu) {

            oSubmenu.hide();

        }

        this.activeItem = null;  

    }

},


/**
* @method focus
* @description Causes the menu to receive focus and fires the "focus" event.
*/
focus: function () {

    if (!this.hasFocus()) {

        this.setInitialFocus();
    
    }

},


/**
* @method blur
* @description Causes the menu to lose focus and fires the "blur" event.
*/    
blur: function () {

    var oItem;

    if (this.hasFocus()) {
    
        oItem = MenuManager.getFocusedMenuItem();
        
        if (oItem) {

            oItem.blur();

        }

    }

},


/**
* @method hasFocus
* @description Returns a boolean indicating whether or not the menu has focus.
* @return {Boolean}
*/
hasFocus: function () {

    return (MenuManager.getFocusedMenu() == this.getRoot());

},


/**
* Adds the specified CustomEvent subscriber to the menu and each of 
* its submenus.
* @method subscribe
* @param p_type     {string}   the type, or name of the event
* @param p_fn       {function} the function to exectute when the event fires
* @param p_obj      {Object}   An object to be passed along when the event 
*                              fires
* @param p_override {boolean}  If true, the obj passed in becomes the 
*                              execution scope of the listener
*/
subscribe: function () {

    function onItemAdded(p_sType, p_aArgs, p_oObject) {

        var oItem = p_aArgs[0],
            oSubmenu = oItem.cfg.getProperty(_SUBMENU);

        if (oSubmenu) {

            oSubmenu.subscribe.apply(oSubmenu, p_oObject);

        }
    
    }


    function onSubmenuAdded(p_sType, p_aArgs, p_oObject) { 
    
        var oSubmenu = this.cfg.getProperty(_SUBMENU);
        
        if (oSubmenu) {

            oSubmenu.subscribe.apply(oSubmenu, p_oObject);
        
        }
    
    }


    Menu.superclass.subscribe.apply(this, arguments);
    Menu.superclass.subscribe.call(this, _ITEM_ADDED, onItemAdded, arguments);


    var aItems = this.getItems(),
        nItems,
        oItem,
        oSubmenu,
        i;
        

    if (aItems) {

        nItems = aItems.length;
        
        if (nItems > 0) {
        
            i = nItems - 1;
            
            do {

                oItem = aItems[i];
                
                oSubmenu = oItem.cfg.getProperty(_SUBMENU);
                
                if (oSubmenu) {
                
                    oSubmenu.subscribe.apply(oSubmenu, arguments);
                
                }
                else {
                
                    oItem.cfg.subscribeToConfigEvent(_SUBMENU, onSubmenuAdded, arguments);
                
                }

            }
            while (i--);
        
        }

    }

},


/**
* @description Initializes the class's configurable properties which can be
* changed using the menu's Config object ("cfg").
* @method initDefaultConfig
*/
initDefaultConfig: function () {

    Menu.superclass.initDefaultConfig.call(this);

    var oConfig = this.cfg;


    // Module documentation overrides

    /**
    * @config effect
    * @description Object or array of objects representing the ContainerEffect 
    * classes that are active for animating the container.  When set this 
    * property is automatically applied to all submenus.
    * @type Object
    * @default null
    */

    // Overlay documentation overrides


    /**
    * @config x
    * @description Number representing the absolute x-coordinate position of 
    * the Menu.  This property is only applied when the "position" 
    * configuration property is set to dynamic.
    * @type Number
    * @default null
    */
    

    /**
    * @config y
    * @description Number representing the absolute y-coordinate position of 
    * the Menu.  This property is only applied when the "position" 
    * configuration property is set to dynamic.
    * @type Number
    * @default null
    */


    /**
    * @description Array of the absolute x and y positions of the Menu.  This 
    * property is only applied when the "position" configuration property is 
    * set to dynamic.
    * @config xy
    * @type Number[]
    * @default null
    */
    

    /**
    * @config context
    * @description Array of context arguments for context-sensitive positioning.  
    * The format is: [id or element, element corner, context corner]. 
    * For example, setting this property to ["img1", "tl", "bl"] would 
    * align the Mnu's top left corner to the context element's 
    * bottom left corner.  This property is only applied when the "position" 
    * configuration property is set to dynamic.
    * @type Array
    * @default null
    */
    
    
    /**
    * @config fixedcenter
    * @description Boolean indicating if the Menu should be anchored to the 
    * center of the viewport.  This property is only applied when the 
    * "position" configuration property is set to dynamic.
    * @type Boolean
    * @default false
    */
    
    
    /**
    * @config iframe
    * @description Boolean indicating whether or not the Menu should 
    * have an IFRAME shim; used to prevent SELECT elements from 
    * poking through an Overlay instance in IE6.  When set to "true", 
    * the iframe shim is created when the Menu instance is intially
    * made visible.  This property is only applied when the "position" 
    * configuration property is set to dynamic and is automatically applied 
    * to all submenus.
    * @type Boolean
    * @default true for IE6 and below, false for all other browsers.
    */


	// Add configuration attributes

    /*
        Change the default value for the "visible" configuration 
        property to "false" by re-adding the property.
    */

    /**
    * @config visible
    * @description Boolean indicating whether or not the menu is visible.  If 
    * the menu's "position" configuration property is set to "dynamic" (the 
    * default), this property toggles the menu's <code>&#60;div&#62;</code> 
    * element's "visibility" style property between "visible" (true) or 
    * "hidden" (false).  If the menu's "position" configuration property is 
    * set to "static" this property toggles the menu's 
    * <code>&#60;div&#62;</code> element's "display" style property 
    * between "block" (true) or "none" (false).
    * @default false
    * @type Boolean
    */
    oConfig.addProperty(
        VISIBLE_CONFIG.key, 
        {
            handler: this.configVisible, 
            value: VISIBLE_CONFIG.value, 
            validator: VISIBLE_CONFIG.validator
        }
     );


    /*
        Change the default value for the "constraintoviewport" configuration 
        property (inherited by YAHOO.widget.Overlay) to "true" by re-adding the property.
    */

    /**
    * @config constraintoviewport
    * @description Boolean indicating if the menu will try to remain inside 
    * the boundaries of the size of viewport.  This property is only applied 
    * when the "position" configuration property is set to dynamic and is 
    * automatically applied to all submenus.
    * @default true
    * @type Boolean
    */
    oConfig.addProperty(
        CONSTRAIN_TO_VIEWPORT_CONFIG.key, 
        {
            handler: this.configConstrainToViewport, 
            value: CONSTRAIN_TO_VIEWPORT_CONFIG.value, 
            validator: CONSTRAIN_TO_VIEWPORT_CONFIG.validator, 
            supercedes: CONSTRAIN_TO_VIEWPORT_CONFIG.supercedes 
        } 
    );


    /*
        Change the default value for the "preventcontextoverlap" configuration 
        property (inherited by YAHOO.widget.Overlay) to "true" by re-adding the property.
    */

	/**
	* @config preventcontextoverlap
	* @description Boolean indicating whether or not a submenu should overlap its parent MenuItem 
	* when the "constraintoviewport" configuration property is set to "true".
	* @type Boolean
	* @default true
	*/
	oConfig.addProperty(PREVENT_CONTEXT_OVERLAP_CONFIG.key, {

		value: PREVENT_CONTEXT_OVERLAP_CONFIG.value, 
		validator: PREVENT_CONTEXT_OVERLAP_CONFIG.validator, 
		supercedes: PREVENT_CONTEXT_OVERLAP_CONFIG.supercedes

	});


    /**
    * @config position
    * @description String indicating how a menu should be positioned on the 
    * screen.  Possible values are "static" and "dynamic."  Static menus are 
    * visible by default and reside in the normal flow of the document 
    * (CSS position: static).  Dynamic menus are hidden by default, reside 
    * out of the normal flow of the document (CSS position: absolute), and 
    * can overlay other elements on the screen.
    * @default dynamic
    * @type String
    */
    oConfig.addProperty(
        POSITION_CONFIG.key, 
        {
            handler: this.configPosition,
            value: POSITION_CONFIG.value, 
            validator: POSITION_CONFIG.validator,
            supercedes: POSITION_CONFIG.supercedes
        }
    );


    /**
    * @config submenualignment
    * @description Array defining how submenus should be aligned to their 
    * parent menu item. The format is: [itemCorner, submenuCorner]. By default
    * a submenu's top left corner is aligned to its parent menu item's top 
    * right corner.
    * @default ["tl","tr"]
    * @type Array
    */
    oConfig.addProperty(
        SUBMENU_ALIGNMENT_CONFIG.key, 
        { 
            value: SUBMENU_ALIGNMENT_CONFIG.value,
            suppressEvent: SUBMENU_ALIGNMENT_CONFIG.suppressEvent
        }
    );


    /**
    * @config autosubmenudisplay
    * @description Boolean indicating if submenus are automatically made 
    * visible when the user mouses over the menu's items.
    * @default true
    * @type Boolean
    */
	oConfig.addProperty(
	   AUTO_SUBMENU_DISPLAY_CONFIG.key, 
	   { 
	       value: AUTO_SUBMENU_DISPLAY_CONFIG.value, 
	       validator: AUTO_SUBMENU_DISPLAY_CONFIG.validator,
	       suppressEvent: AUTO_SUBMENU_DISPLAY_CONFIG.suppressEvent
       } 
    );


    /**
    * @config showdelay
    * @description Number indicating the time (in milliseconds) that should 
    * expire before a submenu is made visible when the user mouses over 
    * the menu's items.  This property is only applied when the "position" 
    * configuration property is set to dynamic and is automatically applied 
    * to all submenus.
    * @default 250
    * @type Number
    */
	oConfig.addProperty(
	   SHOW_DELAY_CONFIG.key, 
	   { 
	       value: SHOW_DELAY_CONFIG.value, 
	       validator: SHOW_DELAY_CONFIG.validator,
	       suppressEvent: SHOW_DELAY_CONFIG.suppressEvent
       } 
    );


    /**
    * @config hidedelay
    * @description Number indicating the time (in milliseconds) that should 
    * expire before the menu is hidden.  This property is only applied when 
    * the "position" configuration property is set to dynamic and is 
    * automatically applied to all submenus.
    * @default 0
    * @type Number
    */
	oConfig.addProperty(
	   HIDE_DELAY_CONFIG.key, 
	   { 
	       handler: this.configHideDelay,
	       value: HIDE_DELAY_CONFIG.value, 
	       validator: HIDE_DELAY_CONFIG.validator, 
	       suppressEvent: HIDE_DELAY_CONFIG.suppressEvent
       } 
    );


    /**
    * @config submenuhidedelay
    * @description Number indicating the time (in milliseconds) that should 
    * expire before a submenu is hidden when the user mouses out of a menu item 
    * heading in the direction of a submenu.  The value must be greater than or 
    * equal to the value specified for the "showdelay" configuration property.
    * This property is only applied when the "position" configuration property 
    * is set to dynamic and is automatically applied to all submenus.
    * @default 250
    * @type Number
    */
	oConfig.addProperty(
	   SUBMENU_HIDE_DELAY_CONFIG.key, 
	   { 
	       value: SUBMENU_HIDE_DELAY_CONFIG.value, 
	       validator: SUBMENU_HIDE_DELAY_CONFIG.validator,
	       suppressEvent: SUBMENU_HIDE_DELAY_CONFIG.suppressEvent
       } 
    );


    /**
    * @config clicktohide
    * @description Boolean indicating if the menu will automatically be 
    * hidden if the user clicks outside of it.  This property is only 
    * applied when the "position" configuration property is set to dynamic 
    * and is automatically applied to all submenus.
    * @default true
    * @type Boolean
    */
    oConfig.addProperty(
        CLICK_TO_HIDE_CONFIG.key,
        {
            value: CLICK_TO_HIDE_CONFIG.value,
            validator: CLICK_TO_HIDE_CONFIG.validator,
            suppressEvent: CLICK_TO_HIDE_CONFIG.suppressEvent
        }
    );


	/**
	* @config container
	* @description HTML element reference or string specifying the id 
	* attribute of the HTML element that the menu's markup should be 
	* rendered into.
	* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
	* level-one-html.html#ID-58190037">HTMLElement</a>|String
	* @default document.body
	*/
	oConfig.addProperty(
	   CONTAINER_CONFIG.key, 
	   { 
	       handler: this.configContainer,
	       value: document.body,
           suppressEvent: CONTAINER_CONFIG.suppressEvent
       } 
   );


    /**
    * @config scrollincrement
    * @description Number used to control the scroll speed of a menu.  Used to 
    * increment the "scrollTop" property of the menu's body by when a menu's 
    * content is scrolling.  When set this property is automatically applied 
    * to all submenus.
    * @default 1
    * @type Number
    */
    oConfig.addProperty(
        SCROLL_INCREMENT_CONFIG.key, 
        { 
            value: SCROLL_INCREMENT_CONFIG.value, 
            validator: SCROLL_INCREMENT_CONFIG.validator,
            supercedes: SCROLL_INCREMENT_CONFIG.supercedes,
            suppressEvent: SCROLL_INCREMENT_CONFIG.suppressEvent
        }
    );


    /**
    * @config minscrollheight
    * @description Number defining the minimum threshold for the "maxheight" 
    * configuration property.  When set this property is automatically applied 
    * to all submenus.
    * @default 90
    * @type Number
    */
    oConfig.addProperty(
        MIN_SCROLL_HEIGHT_CONFIG.key, 
        { 
            value: MIN_SCROLL_HEIGHT_CONFIG.value, 
            validator: MIN_SCROLL_HEIGHT_CONFIG.validator,
            supercedes: MIN_SCROLL_HEIGHT_CONFIG.supercedes,
            suppressEvent: MIN_SCROLL_HEIGHT_CONFIG.suppressEvent
        }
    );


    /**
    * @config maxheight
    * @description Number defining the maximum height (in pixels) for a menu's 
    * body element (<code>&#60;div class="bd"&#60;</code>).  Once a menu's body 
    * exceeds this height, the contents of the body are scrolled to maintain 
    * this value.  This value cannot be set lower than the value of the 
    * "minscrollheight" configuration property.
    * @default 0
    * @type Number
    */
    oConfig.addProperty(
       MAX_HEIGHT_CONFIG.key, 
       {
            handler: this.configMaxHeight,
            value: MAX_HEIGHT_CONFIG.value,
            validator: MAX_HEIGHT_CONFIG.validator,
            suppressEvent: MAX_HEIGHT_CONFIG.suppressEvent,
            supercedes: MAX_HEIGHT_CONFIG.supercedes            
       } 
    );


    /**
    * @config classname
    * @description String representing the CSS class to be applied to the 
    * menu's root <code>&#60;div&#62;</code> element.  The specified class(es)  
    * are appended in addition to the default class as specified by the menu's
    * CSS_CLASS_NAME constant. When set this property is automatically 
    * applied to all submenus.
    * @default null
    * @type String
    */
    oConfig.addProperty(
        CLASS_NAME_CONFIG.key, 
        { 
            handler: this.configClassName,
            value: CLASS_NAME_CONFIG.value, 
            validator: CLASS_NAME_CONFIG.validator,
            supercedes: CLASS_NAME_CONFIG.supercedes      
        }
    );


    /**
    * @config disabled
    * @description Boolean indicating if the menu should be disabled.  
    * Disabling a menu disables each of its items.  (Disabled menu items are 
    * dimmed and will not respond to user input or fire events.)  Disabled
    * menus have a corresponding "disabled" CSS class applied to their root
    * <code>&#60;div&#62;</code> element.
    * @default false
    * @type Boolean
    */
    oConfig.addProperty(
        DISABLED_CONFIG.key, 
        { 
            handler: this.configDisabled,
            value: DISABLED_CONFIG.value, 
            validator: DISABLED_CONFIG.validator,
            suppressEvent: DISABLED_CONFIG.suppressEvent
        }
    );


    /**
    * @config shadow
    * @description Boolean indicating if the menu should have a shadow.
    * @default true
    * @type Boolean
    */
    oConfig.addProperty(
        SHADOW_CONFIG.key, 
        { 
            handler: this.configShadow,
            value: SHADOW_CONFIG.value, 
            validator: SHADOW_CONFIG.validator
        }
    );


    /**
    * @config keepopen
    * @description Boolean indicating if the menu should remain open when clicked.
    * @default false
    * @type Boolean
    */
    oConfig.addProperty(
        KEEP_OPEN_CONFIG.key, 
        { 
            value: KEEP_OPEN_CONFIG.value, 
            validator: KEEP_OPEN_CONFIG.validator
        }
    );

}

}); // END YAHOO.lang.extend

})();



(function () {

/**
* Creates an item for a menu.
* 
* @param {String} p_oObject String specifying the text of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-74680021">HTMLLIElement</a>} p_oObject Object specifying 
* the <code>&#60;li&#62;</code> element of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-38450247">HTMLOptGroupElement</a>} p_oObject Object 
* specifying the <code>&#60;optgroup&#62;</code> element of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-70901257">HTMLOptionElement</a>} p_oObject Object 
* specifying the <code>&#60;option&#62;</code> element of the menu item.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the menu item. See configuration class documentation 
* for more details.
* @class MenuItem
* @constructor
*/
YAHOO.widget.MenuItem = function (p_oObject, p_oConfig) {

    if (p_oObject) {

        if (p_oConfig) {
    
            this.parent = p_oConfig.parent;
            this.value = p_oConfig.value;
            this.id = p_oConfig.id;

        }

        this.init(p_oObject, p_oConfig);

    }

};


var Dom = YAHOO.util.Dom,
    Module = YAHOO.widget.Module,
    Menu = YAHOO.widget.Menu,
    MenuItem = YAHOO.widget.MenuItem,
    CustomEvent = YAHOO.util.CustomEvent,
    UA = YAHOO.env.ua,
    Lang = YAHOO.lang,

	// Private string constants

	_TEXT = "text",
	_HASH = "#",
	_HYPHEN = "-",
	_HELP_TEXT = "helptext",
	_URL = "url",
	_TARGET = "target",
	_EMPHASIS = "emphasis",
	_STRONG_EMPHASIS = "strongemphasis",
	_CHECKED = "checked",
	_SUBMENU = "submenu",
	_DISABLED = "disabled",
	_SELECTED = "selected",
	_HAS_SUBMENU = "hassubmenu",
	_CHECKED_DISABLED = "checked-disabled",
	_HAS_SUBMENU_DISABLED = "hassubmenu-disabled",
	_HAS_SUBMENU_SELECTED = "hassubmenu-selected",
	_CHECKED_SELECTED = "checked-selected",
	_ONCLICK = "onclick",
	_CLASSNAME = "classname",
	_EMPTY_STRING = "",
	_OPTION = "OPTION",
	_OPTGROUP = "OPTGROUP",
	_LI_UPPERCASE = "LI",
	_HREF = "href",
	_SELECT = "SELECT",
	_DIV = "DIV",
	_START_HELP_TEXT = "<em class=\"helptext\">",
	_START_EM = "<em>",
	_END_EM = "</em>",
	_START_STRONG = "<strong>",
	_END_STRONG = "</strong>",
	_PREVENT_CONTEXT_OVERLAP = "preventcontextoverlap",
	_OBJ = "obj",
	_SCOPE = "scope",
	_NONE = "none",
	_VISIBLE = "visible",
	_SPACE = " ",
	_MENUITEM = "MenuItem",
	_CLICK = "click",
	_SHOW = "show",
	_HIDE = "hide",
	_LI_LOWERCASE = "li",
	_ANCHOR_TEMPLATE = "<a href=\"#\"></a>",

    EVENT_TYPES = [
    
        ["mouseOverEvent", "mouseover"],
        ["mouseOutEvent", "mouseout"],
        ["mouseDownEvent", "mousedown"],
        ["mouseUpEvent", "mouseup"],
        ["clickEvent", _CLICK],
        ["keyPressEvent", "keypress"],
        ["keyDownEvent", "keydown"],
        ["keyUpEvent", "keyup"],
        ["focusEvent", "focus"],
        ["blurEvent", "blur"],
        ["destroyEvent", "destroy"]
    
    ],

	TEXT_CONFIG = { 
		key: _TEXT, 
		value: _EMPTY_STRING, 
		validator: Lang.isString, 
		suppressEvent: true 
	}, 

	HELP_TEXT_CONFIG = { 
		key: _HELP_TEXT,
		supercedes: [_TEXT], 
		suppressEvent: true 
	},

	URL_CONFIG = { 
		key: _URL, 
		value: _HASH, 
		suppressEvent: true 
	}, 

	TARGET_CONFIG = { 
		key: _TARGET, 
		suppressEvent: true 
	}, 

	EMPHASIS_CONFIG = { 
		key: _EMPHASIS, 
		value: false, 
		validator: Lang.isBoolean, 
		suppressEvent: true, 
		supercedes: [_TEXT]
	}, 

	STRONG_EMPHASIS_CONFIG = { 
		key: _STRONG_EMPHASIS, 
		value: false, 
		validator: Lang.isBoolean, 
		suppressEvent: true,
		supercedes: [_TEXT]
	},

	CHECKED_CONFIG = { 
		key: _CHECKED, 
		value: false, 
		validator: Lang.isBoolean, 
		suppressEvent: true, 
		supercedes: [_DISABLED, _SELECTED]
	}, 

	SUBMENU_CONFIG = { 
		key: _SUBMENU,
		suppressEvent: true,
		supercedes: [_DISABLED, _SELECTED]
	},

	DISABLED_CONFIG = { 
		key: _DISABLED, 
		value: false, 
		validator: Lang.isBoolean, 
		suppressEvent: true,
		supercedes: [_TEXT, _SELECTED]
	},

	SELECTED_CONFIG = { 
		key: _SELECTED, 
		value: false, 
		validator: Lang.isBoolean, 
		suppressEvent: true
	},

	ONCLICK_CONFIG = { 
		key: _ONCLICK,
		suppressEvent: true
	},

	CLASS_NAME_CONFIG = { 
		key: _CLASSNAME, 
		value: null, 
		validator: Lang.isString,
		suppressEvent: true
	},
    
	KEY_LISTENER_CONFIG = {
		key: "keylistener", 
		value: null, 
		suppressEvent: true
	},

	m_oMenuItemTemplate = null,

    CLASS_NAMES = {};


/**
* @method getClassNameForState
* @description Returns a class name for the specified prefix and state.  If the class name does not 
* yet exist, it is created and stored in the CLASS_NAMES object to increase performance.
* @private
* @param {String} prefix String representing the prefix for the class name
* @param {String} state String representing a state - "disabled," "checked," etc.
*/  
var getClassNameForState = function (prefix, state) {

	var oClassNames = CLASS_NAMES[prefix];
	
	if (!oClassNames) {
		CLASS_NAMES[prefix] = {};
		oClassNames = CLASS_NAMES[prefix];
	}


	var sClassName = oClassNames[state];

	if (!sClassName) {
		sClassName = prefix + _HYPHEN + state;
		oClassNames[state] = sClassName;
	}

	return sClassName;
	
};


/**
* @method addClassNameForState
* @description Applies a class name to a MenuItem instance's &#60;LI&#62; and &#60;A&#62; elements
* that represents a MenuItem's state - "disabled," "checked," etc.
* @private
* @param {String} state String representing a state - "disabled," "checked," etc.
*/  
var addClassNameForState = function (state) {

	Dom.addClass(this.element, getClassNameForState(this.CSS_CLASS_NAME, state));
	Dom.addClass(this._oAnchor, getClassNameForState(this.CSS_LABEL_CLASS_NAME, state));

};

/**
* @method removeClassNameForState
* @description Removes a class name from a MenuItem instance's &#60;LI&#62; and &#60;A&#62; elements
* that represents a MenuItem's state - "disabled," "checked," etc.
* @private
* @param {String} state String representing a state - "disabled," "checked," etc.
*/  
var removeClassNameForState = function (state) {

	Dom.removeClass(this.element, getClassNameForState(this.CSS_CLASS_NAME, state));
	Dom.removeClass(this._oAnchor, getClassNameForState(this.CSS_LABEL_CLASS_NAME, state));

};


MenuItem.prototype = {

    /**
    * @property CSS_CLASS_NAME
    * @description String representing the CSS class(es) to be applied to the 
    * <code>&#60;li&#62;</code> element of the menu item.
    * @default "yuimenuitem"
    * @final
    * @type String
    */
    CSS_CLASS_NAME: "yuimenuitem",


    /**
    * @property CSS_LABEL_CLASS_NAME
    * @description String representing the CSS class(es) to be applied to the 
    * menu item's <code>&#60;a&#62;</code> element.
    * @default "yuimenuitemlabel"
    * @final
    * @type String
    */
    CSS_LABEL_CLASS_NAME: "yuimenuitemlabel",


    /**
    * @property SUBMENU_TYPE
    * @description Object representing the type of menu to instantiate and 
    * add when parsing the child nodes of the menu item's source HTML element.
    * @final
    * @type YAHOO.widget.Menu
    */
    SUBMENU_TYPE: null,



    // Private member variables
    

    /**
    * @property _oAnchor
    * @description Object reference to the menu item's 
    * <code>&#60;a&#62;</code> element.
    * @default null 
    * @private
    * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-48250443">HTMLAnchorElement</a>
    */
    _oAnchor: null,
    
    
    /**
    * @property _oHelpTextEM
    * @description Object reference to the menu item's help text 
    * <code>&#60;em&#62;</code> element.
    * @default null
    * @private
    * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-58190037">HTMLElement</a>
    */
    _oHelpTextEM: null,
    
    
    /**
    * @property _oSubmenu
    * @description Object reference to the menu item's submenu.
    * @default null
    * @private
    * @type YAHOO.widget.Menu
    */
    _oSubmenu: null,


    /** 
    * @property _oOnclickAttributeValue
    * @description Object reference to the menu item's current value for the 
    * "onclick" configuration attribute.
    * @default null
    * @private
    * @type Object
    */
    _oOnclickAttributeValue: null,


    /**
    * @property _sClassName
    * @description The current value of the "classname" configuration attribute.
    * @default null
    * @private
    * @type String
    */
    _sClassName: null,



    // Public properties


	/**
    * @property constructor
	* @description Object reference to the menu item's constructor function.
    * @default YAHOO.widget.MenuItem
	* @type YAHOO.widget.MenuItem
	*/
	constructor: MenuItem,


    /**
    * @property index
    * @description Number indicating the ordinal position of the menu item in 
    * its group.
    * @default null
    * @type Number
    */
    index: null,


    /**
    * @property groupIndex
    * @description Number indicating the index of the group to which the menu 
    * item belongs.
    * @default null
    * @type Number
    */
    groupIndex: null,


    /**
    * @property parent
    * @description Object reference to the menu item's parent menu.
    * @default null
    * @type YAHOO.widget.Menu
    */
    parent: null,


    /**
    * @property element
    * @description Object reference to the menu item's 
    * <code>&#60;li&#62;</code> element.
    * @default <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level
    * -one-html.html#ID-74680021">HTMLLIElement</a>
    * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-74680021">HTMLLIElement</a>
    */
    element: null,


    /**
    * @property srcElement
    * @description Object reference to the HTML element (either 
    * <code>&#60;li&#62;</code>, <code>&#60;optgroup&#62;</code> or 
    * <code>&#60;option&#62;</code>) used create the menu item.
    * @default <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
    * level-one-html.html#ID-74680021">HTMLLIElement</a>|<a href="http://www.
    * w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-38450247"
    * >HTMLOptGroupElement</a>|<a href="http://www.w3.org/TR/2000/WD-DOM-
    * Level-1-20000929/level-one-html.html#ID-70901257">HTMLOptionElement</a>
    * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-74680021">HTMLLIElement</a>|<a href="http://www.w3.
    * org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-38450247">
    * HTMLOptGroupElement</a>|<a href="http://www.w3.org/TR/2000/WD-DOM-
    * Level-1-20000929/level-one-html.html#ID-70901257">HTMLOptionElement</a>
    */
    srcElement: null,


    /**
    * @property value
    * @description Object reference to the menu item's value.
    * @default null
    * @type Object
    */
    value: null,


	/**
    * @property browser
    * @deprecated Use YAHOO.env.ua
	* @description String representing the browser.
	* @type String
	*/
	browser: Module.prototype.browser,


    /**
    * @property id
    * @description Id of the menu item's root <code>&#60;li&#62;</code> 
    * element.  This property should be set via the constructor using the 
    * configuration object literal.  If an id is not specified, then one will 
    * be created using the "generateId" method of the Dom utility.
    * @default null
    * @type String
    */
    id: null,



    // Events


    /**
    * @event destroyEvent
    * @description Fires when the menu item's <code>&#60;li&#62;</code> 
    * element is removed from its parent <code>&#60;ul&#62;</code> element.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event mouseOverEvent
    * @description Fires when the mouse has entered the menu item.  Passes 
    * back the DOM Event object as an argument.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event mouseOutEvent
    * @description Fires when the mouse has left the menu item.  Passes back 
    * the DOM Event object as an argument.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event mouseDownEvent
    * @description Fires when the user mouses down on the menu item.  Passes 
    * back the DOM Event object as an argument.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event mouseUpEvent
    * @description Fires when the user releases a mouse button while the mouse 
    * is over the menu item.  Passes back the DOM Event object as an argument.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event clickEvent
    * @description Fires when the user clicks the on the menu item.  Passes 
    * back the DOM Event object as an argument.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event keyPressEvent
    * @description Fires when the user presses an alphanumeric key when the 
    * menu item has focus.  Passes back the DOM Event object as an argument.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event keyDownEvent
    * @description Fires when the user presses a key when the menu item has 
    * focus.  Passes back the DOM Event object as an argument.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event keyUpEvent
    * @description Fires when the user releases a key when the menu item has 
    * focus.  Passes back the DOM Event object as an argument.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event focusEvent
    * @description Fires when the menu item receives focus.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @event blurEvent
    * @description Fires when the menu item loses the input focus.
    * @type YAHOO.util.CustomEvent
    */


    /**
    * @method init
    * @description The MenuItem class's initialization method. This method is 
    * automatically called by the constructor, and sets up all DOM references 
    * for pre-existing markup, and creates required markup if it is not 
    * already present.
    * @param {String} p_oObject String specifying the text of the menu item.
    * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-74680021">HTMLLIElement</a>} p_oObject Object specifying 
    * the <code>&#60;li&#62;</code> element of the menu item.
    * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-38450247">HTMLOptGroupElement</a>} p_oObject Object 
    * specifying the <code>&#60;optgroup&#62;</code> element of the menu item.
    * @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
    * one-html.html#ID-70901257">HTMLOptionElement</a>} p_oObject Object 
    * specifying the <code>&#60;option&#62;</code> element of the menu item.
    * @param {Object} p_oConfig Optional. Object literal specifying the 
    * configuration for the menu item. See configuration class documentation 
    * for more details.
    */
    init: function (p_oObject, p_oConfig) {


        if (!this.SUBMENU_TYPE) {
    
            this.SUBMENU_TYPE = Menu;
    
        }


        // Create the config object

        this.cfg = new YAHOO.util.Config(this);

        this.initDefaultConfig();

        var oConfig = this.cfg,
            sURL = _HASH,
            oCustomEvent,
			aEventData,
            oAnchor,
            sTarget,
            sText,
            sId,
            i;


        if (Lang.isString(p_oObject)) {

            this._createRootNodeStructure();

            oConfig.queueProperty(_TEXT, p_oObject);

        }
        else if (p_oObject && p_oObject.tagName) {

            switch(p_oObject.tagName.toUpperCase()) {

                case _OPTION:

                    this._createRootNodeStructure();

                    oConfig.queueProperty(_TEXT, p_oObject.text);
                    oConfig.queueProperty(_DISABLED, p_oObject.disabled);

                    this.value = p_oObject.value;

                    this.srcElement = p_oObject;

                break;

                case _OPTGROUP:

                    this._createRootNodeStructure();

                    oConfig.queueProperty(_TEXT, p_oObject.label);
                    oConfig.queueProperty(_DISABLED, p_oObject.disabled);

                    this.srcElement = p_oObject;

                    this._initSubTree();

                break;

                case _LI_UPPERCASE:

                    // Get the anchor node (if it exists)
                    
                    oAnchor = Dom.getFirstChild(p_oObject);


                    // Capture the "text" and/or the "URL"

                    if (oAnchor) {

                        sURL = oAnchor.getAttribute(_HREF, 2);
                        sTarget = oAnchor.getAttribute(_TARGET);

                        sText = oAnchor.innerHTML;

                    }

                    this.srcElement = p_oObject;
                    this.element = p_oObject;
                    this._oAnchor = oAnchor;

                    /*
                        Set these properties silently to sync up the 
                        configuration object without making changes to the 
                        element's DOM
                    */ 

                    oConfig.setProperty(_TEXT, sText, true);
                    oConfig.setProperty(_URL, sURL, true);
                    oConfig.setProperty(_TARGET, sTarget, true);

                    this._initSubTree();

                break;

            }            

        }


        if (this.element) {

            sId = (this.srcElement || this.element).id;

            if (!sId) {

                sId = this.id || Dom.generateId();

                this.element.id = sId;

            }

            this.id = sId;


            Dom.addClass(this.element, this.CSS_CLASS_NAME);
            Dom.addClass(this._oAnchor, this.CSS_LABEL_CLASS_NAME);


			i = EVENT_TYPES.length - 1;

			do {

				aEventData = EVENT_TYPES[i];

				oCustomEvent = this.createEvent(aEventData[1]);
				oCustomEvent.signature = CustomEvent.LIST;
				
				this[aEventData[0]] = oCustomEvent;

			}
			while (i--);


            if (p_oConfig) {
    
                oConfig.applyConfig(p_oConfig);
    
            }        

            oConfig.fireQueue();

        }

    },



    // Private methods

    /**
    * @method _createRootNodeStructure
    * @description Creates the core DOM structure for the menu item.
    * @private
    */
    _createRootNodeStructure: function () {

        var oElement,
            oAnchor;

        if (!m_oMenuItemTemplate) {

            m_oMenuItemTemplate = document.createElement(_LI_LOWERCASE);
            m_oMenuItemTemplate.innerHTML = _ANCHOR_TEMPLATE;

        }

        oElement = m_oMenuItemTemplate.cloneNode(true);
        oElement.className = this.CSS_CLASS_NAME;

        oAnchor = oElement.firstChild;
        oAnchor.className = this.CSS_LABEL_CLASS_NAME;

        this.element = oElement;
        this._oAnchor = oAnchor;

    },


    /**
    * @method _initSubTree
    * @description Iterates the source element's childNodes collection and uses 
    * the child nodes to instantiate other menus.
    * @private
    */
    _initSubTree: function () {

        var oSrcEl = this.srcElement,
            oConfig = this.cfg,
            oNode,
            aOptions,
            nOptions,
            oMenu,
            n;


        if (oSrcEl.childNodes.length > 0) {

            if (this.parent.lazyLoad && this.parent.srcElement && 
                this.parent.srcElement.tagName.toUpperCase() == _SELECT) {

                oConfig.setProperty(
                        _SUBMENU, 
                        { id: Dom.generateId(), itemdata: oSrcEl.childNodes }
                    );

            }
            else {

                oNode = oSrcEl.firstChild;
                aOptions = [];
    
                do {
    
                    if (oNode && oNode.tagName) {
    
                        switch(oNode.tagName.toUpperCase()) {
                
                            case _DIV:
                
                                oConfig.setProperty(_SUBMENU, oNode);
                
                            break;
         
                            case _OPTION:
        
                                aOptions[aOptions.length] = oNode;
        
                            break;
               
                        }
                    
                    }
                
                }        
                while((oNode = oNode.nextSibling));
    
    
                nOptions = aOptions.length;
    
                if (nOptions > 0) {
    
                    oMenu = new this.SUBMENU_TYPE(Dom.generateId());
                    
                    oConfig.setProperty(_SUBMENU, oMenu);
    
                    for(n=0; n<nOptions; n++) {
        
                        oMenu.addItem((new oMenu.ITEM_TYPE(aOptions[n])));
        
                    }
        
                }
            
            }

        }

    },



    // Event handlers for configuration properties


    /**
    * @method configText
    * @description Event handler for when the "text" configuration property of 
    * the menu item changes.
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */
    configText: function (p_sType, p_aArgs, p_oItem) {

        var sText = p_aArgs[0],
            oConfig = this.cfg,
            oAnchor = this._oAnchor,
            sHelpText = oConfig.getProperty(_HELP_TEXT),
            sHelpTextHTML = _EMPTY_STRING,
            sEmphasisStartTag = _EMPTY_STRING,
            sEmphasisEndTag = _EMPTY_STRING;


        if (sText) {


            if (sHelpText) {
                    
                sHelpTextHTML = _START_HELP_TEXT + sHelpText + _END_EM;
            
            }


            if (oConfig.getProperty(_EMPHASIS)) {

                sEmphasisStartTag = _START_EM;
                sEmphasisEndTag = _END_EM;

            }


            if (oConfig.getProperty(_STRONG_EMPHASIS)) {

                sEmphasisStartTag = _START_STRONG;
                sEmphasisEndTag = _END_STRONG;
            
            }


            oAnchor.innerHTML = (sEmphasisStartTag + sText + sEmphasisEndTag + sHelpTextHTML);

        }

    },


    /**
    * @method configHelpText
    * @description Event handler for when the "helptext" configuration property 
    * of the menu item changes.
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */    
    configHelpText: function (p_sType, p_aArgs, p_oItem) {

        this.cfg.refireEvent(_TEXT);

    },


    /**
    * @method configURL
    * @description Event handler for when the "url" configuration property of 
    * the menu item changes.
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */    
    configURL: function (p_sType, p_aArgs, p_oItem) {

        var sURL = p_aArgs[0];

        if (!sURL) {

            sURL = _HASH;

        }

        var oAnchor = this._oAnchor;

        if (UA.opera) {

            oAnchor.removeAttribute(_HREF);
        
        }

        oAnchor.setAttribute(_HREF, sURL);

    },


    /**
    * @method configTarget
    * @description Event handler for when the "target" configuration property 
    * of the menu item changes.  
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */    
    configTarget: function (p_sType, p_aArgs, p_oItem) {

        var sTarget = p_aArgs[0],
            oAnchor = this._oAnchor;

        if (sTarget && sTarget.length > 0) {

            oAnchor.setAttribute(_TARGET, sTarget);

        }
        else {

            oAnchor.removeAttribute(_TARGET);
        
        }

    },


    /**
    * @method configEmphasis
    * @description Event handler for when the "emphasis" configuration property
    * of the menu item changes.
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */    
    configEmphasis: function (p_sType, p_aArgs, p_oItem) {

        var bEmphasis = p_aArgs[0],
            oConfig = this.cfg;


        if (bEmphasis && oConfig.getProperty(_STRONG_EMPHASIS)) {

            oConfig.setProperty(_STRONG_EMPHASIS, false);

        }


        oConfig.refireEvent(_TEXT);

    },


    /**
    * @method configStrongEmphasis
    * @description Event handler for when the "strongemphasis" configuration 
    * property of the menu item changes.
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */    
    configStrongEmphasis: function (p_sType, p_aArgs, p_oItem) {

        var bStrongEmphasis = p_aArgs[0],
            oConfig = this.cfg;


        if (bStrongEmphasis && oConfig.getProperty(_EMPHASIS)) {

            oConfig.setProperty(_EMPHASIS, false);

        }

        oConfig.refireEvent(_TEXT);

    },


    /**
    * @method configChecked
    * @description Event handler for when the "checked" configuration property 
    * of the menu item changes. 
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */    
    configChecked: function (p_sType, p_aArgs, p_oItem) {

        var bChecked = p_aArgs[0],
            oConfig = this.cfg;


        if (bChecked) {

            addClassNameForState.call(this, _CHECKED);

        }
        else {

            removeClassNameForState.call(this, _CHECKED);
        }


        oConfig.refireEvent(_TEXT);


        if (oConfig.getProperty(_DISABLED)) {

            oConfig.refireEvent(_DISABLED);

        }


        if (oConfig.getProperty(_SELECTED)) {

            oConfig.refireEvent(_SELECTED);

        }

    },



    /**
    * @method configDisabled
    * @description Event handler for when the "disabled" configuration property 
    * of the menu item changes. 
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */    
    configDisabled: function (p_sType, p_aArgs, p_oItem) {

        var bDisabled = p_aArgs[0],
            oConfig = this.cfg,
            oSubmenu = oConfig.getProperty(_SUBMENU),
            bChecked = oConfig.getProperty(_CHECKED);


        if (bDisabled) {

            if (oConfig.getProperty(_SELECTED)) {

                oConfig.setProperty(_SELECTED, false);

            }


			addClassNameForState.call(this, _DISABLED);


            if (oSubmenu) {

				addClassNameForState.call(this, _HAS_SUBMENU_DISABLED);
            
            }
            

            if (bChecked) {

				addClassNameForState.call(this, _CHECKED_DISABLED);

            }

        }
        else {

			removeClassNameForState.call(this, _DISABLED);


            if (oSubmenu) {

				removeClassNameForState.call(this, _HAS_SUBMENU_DISABLED);
            
            }
            

            if (bChecked) {

				removeClassNameForState.call(this, _CHECKED_DISABLED);

            }

        }

    },


    /**
    * @method configSelected
    * @description Event handler for when the "selected" configuration property 
    * of the menu item changes. 
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */    
    configSelected: function (p_sType, p_aArgs, p_oItem) {

        var oConfig = this.cfg,
        	oAnchor = this._oAnchor,
        	
            bSelected = p_aArgs[0],
            bChecked = oConfig.getProperty(_CHECKED),
            oSubmenu = oConfig.getProperty(_SUBMENU);


        if (UA.opera) {

            oAnchor.blur();
        
        }


        if (bSelected && !oConfig.getProperty(_DISABLED)) {

			addClassNameForState.call(this, _SELECTED);


            if (oSubmenu) {

				addClassNameForState.call(this, _HAS_SUBMENU_SELECTED);
            
            }


            if (bChecked) {

				addClassNameForState.call(this, _CHECKED_SELECTED);

            }

        }
        else {

			removeClassNameForState.call(this, _SELECTED);


            if (oSubmenu) {

				removeClassNameForState.call(this, _HAS_SUBMENU_SELECTED);
            
            }


            if (bChecked) {

				removeClassNameForState.call(this, _CHECKED_SELECTED);

            }

        }


        if (this.hasFocus() && UA.opera) {
        
            oAnchor.focus();
        
        }

    },


    /**
    * @method _onSubmenuBeforeHide
    * @description "beforehide" Custom Event handler for a submenu.
    * @private
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    */
    _onSubmenuBeforeHide: function (p_sType, p_aArgs) {

        var oItem = this.parent,
            oMenu;

        function onHide() {

            oItem._oAnchor.blur();
            oMenu.beforeHideEvent.unsubscribe(onHide);
        
        }


        if (oItem.hasFocus()) {

            oMenu = oItem.parent;

            oMenu.beforeHideEvent.subscribe(onHide);
        
        }
    
    },


    /**
    * @method configSubmenu
    * @description Event handler for when the "submenu" configuration property 
    * of the menu item changes. 
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */
    configSubmenu: function (p_sType, p_aArgs, p_oItem) {

        var oSubmenu = p_aArgs[0],
            oConfig = this.cfg,
            bLazyLoad = this.parent && this.parent.lazyLoad,
            oMenu,
            sSubmenuId,
            oSubmenuConfig;


        if (oSubmenu) {

            if (oSubmenu instanceof Menu) {

                oMenu = oSubmenu;
                oMenu.parent = this;
                oMenu.lazyLoad = bLazyLoad;

            }
            else if (Lang.isObject(oSubmenu) && oSubmenu.id && !oSubmenu.nodeType) {

                sSubmenuId = oSubmenu.id;
                oSubmenuConfig = oSubmenu;

                oSubmenuConfig.lazyload = bLazyLoad;
                oSubmenuConfig.parent = this;

                oMenu = new this.SUBMENU_TYPE(sSubmenuId, oSubmenuConfig);


                // Set the value of the property to the Menu instance

                oConfig.setProperty(_SUBMENU, oMenu, true);

            }
            else {

                oMenu = new this.SUBMENU_TYPE(oSubmenu, { lazyload: bLazyLoad, parent: this });


                // Set the value of the property to the Menu instance
                
                oConfig.setProperty(_SUBMENU, oMenu, true);

            }


            if (oMenu) {

				oMenu.cfg.setProperty(_PREVENT_CONTEXT_OVERLAP, true);

                addClassNameForState.call(this, _HAS_SUBMENU);


				if (oConfig.getProperty(_URL) === _HASH) {
				
					oConfig.setProperty(_URL, (_HASH + oMenu.id));
				
				}


                this._oSubmenu = oMenu;


                if (UA.opera) {
                
                    oMenu.beforeHideEvent.subscribe(this._onSubmenuBeforeHide);               
                
                }
            
            }

        }
        else {

			removeClassNameForState.call(this, _HAS_SUBMENU);

            if (this._oSubmenu) {

                this._oSubmenu.destroy();

            }

        }


        if (oConfig.getProperty(_DISABLED)) {

            oConfig.refireEvent(_DISABLED);

        }


        if (oConfig.getProperty(_SELECTED)) {

            oConfig.refireEvent(_SELECTED);

        }

    },


    /**
    * @method configOnClick
    * @description Event handler for when the "onclick" configuration property 
    * of the menu item changes. 
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */
    configOnClick: function (p_sType, p_aArgs, p_oItem) {

        var oObject = p_aArgs[0];

        /*
            Remove any existing listeners if a "click" event handler has 
            already been specified.
        */

        if (this._oOnclickAttributeValue && (this._oOnclickAttributeValue != oObject)) {

            this.clickEvent.unsubscribe(this._oOnclickAttributeValue.fn, 
                                this._oOnclickAttributeValue.obj);

            this._oOnclickAttributeValue = null;

        }


        if (!this._oOnclickAttributeValue && Lang.isObject(oObject) && 
            Lang.isFunction(oObject.fn)) {
            
            this.clickEvent.subscribe(oObject.fn, 
                ((_OBJ in oObject) ? oObject.obj : this), 
                ((_SCOPE in oObject) ? oObject.scope : null) );

            this._oOnclickAttributeValue = oObject;

        }
    
    },


    /**
    * @method configClassName
    * @description Event handler for when the "classname" configuration 
    * property of a menu item changes.
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    * @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
    * that fired the event.
    */
    configClassName: function (p_sType, p_aArgs, p_oItem) {
    
        var sClassName = p_aArgs[0];
    
        if (this._sClassName) {
    
            Dom.removeClass(this.element, this._sClassName);
    
        }
    
        Dom.addClass(this.element, sClassName);
        this._sClassName = sClassName;
    
    },


    /**
    * @method _dispatchClickEvent
    * @description Dispatches a DOM "click" event to the anchor element of a 
	* MenuItem instance.
	* @private	
    */
	_dispatchClickEvent: function () {

		var oMenuItem = this,
			oAnchor,
			oEvent;

		if (!oMenuItem.cfg.getProperty(_DISABLED)) {

			oAnchor = Dom.getFirstChild(oMenuItem.element);

			//	Dispatch a "click" event to the MenuItem's anchor so that its
			//	"click" event handlers will get called in response to the user 
			//	pressing the keyboard shortcut defined by the "keylistener"
			//	configuration property.

			if (UA.ie) {
				oAnchor.fireEvent(_ONCLICK);
			}
			else {

				if ((UA.gecko && UA.gecko >= 1.9) || UA.opera || UA.webkit) {

					oEvent = document.createEvent("HTMLEvents");
					oEvent.initEvent(_CLICK, true, true);

				}
				else {

					oEvent = document.createEvent("MouseEvents");
					oEvent.initMouseEvent(_CLICK, true, true, window, 0, 0, 0, 
						0, 0, false, false, false, false, 0, null);

				}

				oAnchor.dispatchEvent(oEvent);

			}

		}

	},


    /**
    * @method _createKeyListener
    * @description "show" event handler for a Menu instance - responsible for 
	* setting up the KeyListener instance for a MenuItem.
	* @private	
    * @param {String} type String representing the name of the event that 
    * was fired.
    * @param {Array} args Array of arguments sent when the event was fired.
    * @param {Array} keyData Array of arguments sent when the event was fired.
    */
	_createKeyListener: function (type, args, keyData) {

		var oMenuItem = this,
			oMenu = oMenuItem.parent;

		var oKeyListener = new YAHOO.util.KeyListener(
										oMenu.element.ownerDocument, 
										keyData, 
										{
											fn: oMenuItem._dispatchClickEvent, 
											scope: oMenuItem, 
											correctScope: true });


		if (oMenu.cfg.getProperty(_VISIBLE)) {
			oKeyListener.enable();
		}


		oMenu.subscribe(_SHOW, oKeyListener.enable, null, oKeyListener);
		oMenu.subscribe(_HIDE, oKeyListener.disable, null, oKeyListener);
		
		oMenuItem._keyListener = oKeyListener;
		
		oMenu.unsubscribe(_SHOW, oMenuItem._createKeyListener, keyData);
		
	},


    /**
    * @method configKeyListener
    * @description Event handler for when the "keylistener" configuration 
    * property of a menu item changes.
    * @param {String} p_sType String representing the name of the event that 
    * was fired.
    * @param {Array} p_aArgs Array of arguments sent when the event was fired.
    */
    configKeyListener: function (p_sType, p_aArgs) {

		var oKeyData = p_aArgs[0],
			oMenuItem = this,
			oMenu = oMenuItem.parent;

		if (oMenuItem._keyData) {

			//	Unsubscribe from the "show" event in case the keylistener 
			//	config was changed before the Menu was ever made visible.

			oMenu.unsubscribe(_SHOW, 
					oMenuItem._createKeyListener, oMenuItem._keyData);

			oMenuItem._keyData = null;					
					
		}


		//	Tear down for the previous value of the "keylistener" property

		if (oMenuItem._keyListener) {

			oMenu.unsubscribe(_SHOW, oMenuItem._keyListener.enable);
			oMenu.unsubscribe(_HIDE, oMenuItem._keyListener.disable);

			oMenuItem._keyListener.disable();
			oMenuItem._keyListener = null;

		}


    	if (oKeyData) {
	
			oMenuItem._keyData = oKeyData;

			//	Defer the creation of the KeyListener instance until the 
			//	parent Menu is visible.  This is necessary since the 
			//	KeyListener instance needs to be bound to the document the 
			//	Menu has been rendered into.  Deferring creation of the 
			//	KeyListener instance also improves performance.

			oMenu.subscribe(_SHOW, oMenuItem._createKeyListener, 
				oKeyData, oMenuItem);
		}
    
    },


    // Public methods


	/**
    * @method initDefaultConfig
	* @description Initializes an item's configurable properties.
	*/
	initDefaultConfig : function () {

        var oConfig = this.cfg;


        // Define the configuration attributes

        /**
        * @config text
        * @description String specifying the text label for the menu item.  
        * When building a menu from existing HTML the value of this property
        * will be interpreted from the menu's markup.
        * @default ""
        * @type String
        */
        oConfig.addProperty(
            TEXT_CONFIG.key, 
            { 
                handler: this.configText, 
                value: TEXT_CONFIG.value, 
                validator: TEXT_CONFIG.validator, 
                suppressEvent: TEXT_CONFIG.suppressEvent 
            }
        );
        

        /**
        * @config helptext
        * @description String specifying additional instructional text to 
        * accompany the text for the menu item.
        * @deprecated Use "text" configuration property to add help text markup.  
        * For example: <code>oMenuItem.cfg.setProperty("text", "Copy &#60;em 
        * class=\"helptext\"&#62;Ctrl + C&#60;/em&#62;");</code>
        * @default null
        * @type String|<a href="http://www.w3.org/TR/
        * 2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-58190037">
        * HTMLElement</a>
        */
        oConfig.addProperty(
            HELP_TEXT_CONFIG.key,
            {
                handler: this.configHelpText, 
                supercedes: HELP_TEXT_CONFIG.supercedes,
                suppressEvent: HELP_TEXT_CONFIG.suppressEvent 
            }
        );


        /**
        * @config url
        * @description String specifying the URL for the menu item's anchor's 
        * "href" attribute.  When building a menu from existing HTML the value 
        * of this property will be interpreted from the menu's markup.
        * @default "#"
        * @type String
        */        
        oConfig.addProperty(
            URL_CONFIG.key, 
            {
                handler: this.configURL, 
                value: URL_CONFIG.value, 
                suppressEvent: URL_CONFIG.suppressEvent
            }
        );


        /**
        * @config target
        * @description String specifying the value for the "target" attribute 
        * of the menu item's anchor element. <strong>Specifying a target will 
        * require the user to click directly on the menu item's anchor node in
        * order to cause the browser to navigate to the specified URL.</strong> 
        * When building a menu from existing HTML the value of this property 
        * will be interpreted from the menu's markup.
        * @default null
        * @type String
        */        
        oConfig.addProperty(
            TARGET_CONFIG.key, 
            {
                handler: this.configTarget, 
                suppressEvent: TARGET_CONFIG.suppressEvent
            }
        );


        /**
        * @config emphasis
        * @description Boolean indicating if the text of the menu item will be 
        * rendered with emphasis.
        * @deprecated Use the "text" configuration property to add emphasis.  
        * For example: <code>oMenuItem.cfg.setProperty("text", "&#60;em&#62;Some 
        * Text&#60;/em&#62;");</code>
        * @default false
        * @type Boolean
        */
        oConfig.addProperty(
            EMPHASIS_CONFIG.key, 
            { 
                handler: this.configEmphasis, 
                value: EMPHASIS_CONFIG.value, 
                validator: EMPHASIS_CONFIG.validator, 
                suppressEvent: EMPHASIS_CONFIG.suppressEvent,
                supercedes: EMPHASIS_CONFIG.supercedes
            }
        );


        /**
        * @config strongemphasis
        * @description Boolean indicating if the text of the menu item will be 
        * rendered with strong emphasis.
        * @deprecated Use the "text" configuration property to add strong emphasis.  
        * For example: <code>oMenuItem.cfg.setProperty("text", "&#60;strong&#62; 
        * Some Text&#60;/strong&#62;");</code>
        * @default false
        * @type Boolean
        */
        oConfig.addProperty(
            STRONG_EMPHASIS_CONFIG.key,
            {
                handler: this.configStrongEmphasis,
                value: STRONG_EMPHASIS_CONFIG.value,
                validator: STRONG_EMPHASIS_CONFIG.validator,
                suppressEvent: STRONG_EMPHASIS_CONFIG.suppressEvent,
                supercedes: STRONG_EMPHASIS_CONFIG.supercedes
            }
        );


        /**
        * @config checked
        * @description Boolean indicating if the menu item should be rendered 
        * with a checkmark.
        * @default false
        * @type Boolean
        */
        oConfig.addProperty(
            CHECKED_CONFIG.key, 
            {
                handler: this.configChecked, 
                value: CHECKED_CONFIG.value, 
                validator: CHECKED_CONFIG.validator, 
                suppressEvent: CHECKED_CONFIG.suppressEvent,
                supercedes: CHECKED_CONFIG.supercedes
            } 
        );


        /**
        * @config disabled
        * @description Boolean indicating if the menu item should be disabled.  
        * (Disabled menu items are  dimmed and will not respond to user input 
        * or fire events.)
        * @default false
        * @type Boolean
        */
        oConfig.addProperty(
            DISABLED_CONFIG.key,
            {
                handler: this.configDisabled,
                value: DISABLED_CONFIG.value,
                validator: DISABLED_CONFIG.validator,
                suppressEvent: DISABLED_CONFIG.suppressEvent
            }
        );


        /**
        * @config selected
        * @description Boolean indicating if the menu item should 
        * be highlighted.
        * @default false
        * @type Boolean
        */
        oConfig.addProperty(
            SELECTED_CONFIG.key,
            {
                handler: this.configSelected,
                value: SELECTED_CONFIG.value,
                validator: SELECTED_CONFIG.validator,
                suppressEvent: SELECTED_CONFIG.suppressEvent
            }
        );


        /**
        * @config submenu
        * @description Object specifying the submenu to be appended to the 
        * menu item.  The value can be one of the following: <ul><li>Object 
        * specifying a Menu instance.</li><li>Object literal specifying the
        * menu to be created.  Format: <code>{ id: [menu id], itemdata: 
        * [<a href="YAHOO.widget.Menu.html#itemData">array of values for 
        * items</a>] }</code>.</li><li>String specifying the id attribute 
        * of the <code>&#60;div&#62;</code> element of the menu.</li><li>
        * Object specifying the <code>&#60;div&#62;</code> element of the 
        * menu.</li></ul>
        * @default null
        * @type Menu|String|Object|<a href="http://www.w3.org/TR/2000/
        * WD-DOM-Level-1-20000929/level-one-html.html#ID-58190037">
        * HTMLElement</a>
        */
        oConfig.addProperty(
            SUBMENU_CONFIG.key, 
            {
                handler: this.configSubmenu, 
                supercedes: SUBMENU_CONFIG.supercedes,
                suppressEvent: SUBMENU_CONFIG.suppressEvent
            }
        );


        /**
        * @config onclick
        * @description Object literal representing the code to be executed when 
        * the item is clicked.  Format:<br> <code> {<br> 
        * <strong>fn:</strong> Function,   &#47;&#47; The handler to call when 
        * the event fires.<br> <strong>obj:</strong> Object, &#47;&#47; An 
        * object to  pass back to the handler.<br> <strong>scope:</strong> 
        * Object &#47;&#47; The object to use for the scope of the handler.
        * <br> } </code>
        * @type Object
        * @default null
        */
        oConfig.addProperty(
            ONCLICK_CONFIG.key, 
            {
                handler: this.configOnClick, 
                suppressEvent: ONCLICK_CONFIG.suppressEvent 
            }
        );


        /**
        * @config classname
        * @description CSS class to be applied to the menu item's root 
        * <code>&#60;li&#62;</code> element.  The specified class(es) are 
        * appended in addition to the default class as specified by the menu 
        * item's CSS_CLASS_NAME constant.
        * @default null
        * @type String
        */
        oConfig.addProperty(
            CLASS_NAME_CONFIG.key, 
            { 
                handler: this.configClassName,
                value: CLASS_NAME_CONFIG.value, 
                validator: CLASS_NAME_CONFIG.validator,
                suppressEvent: CLASS_NAME_CONFIG.suppressEvent 
            }
        );


        /**
        * @config keylistener
        * @description Object literal representing the key(s) that can be used 
 		* to trigger the MenuItem's "click" event.  Possible attributes are 
		* shift (boolean), alt (boolean), ctrl (boolean) and keys (either an int 
		* or an array of ints representing keycodes).
        * @default null
        * @type Object
        */
        oConfig.addProperty(
            KEY_LISTENER_CONFIG.key, 
            { 
                handler: this.configKeyListener,
                value: KEY_LISTENER_CONFIG.value, 
                suppressEvent: KEY_LISTENER_CONFIG.suppressEvent 
            }
        );

	},


    /**
    * @method getNextEnabledSibling
    * @description Finds the menu item's next enabled sibling.
    * @return YAHOO.widget.MenuItem
    */
    getNextEnabledSibling: function () {

        var nGroupIndex,
            aItemGroups,
            oNextItem,
            nNextGroupIndex,
            aNextGroup,
            returnVal;

        function getNextArrayItem(p_aArray, p_nStartIndex) {

            return p_aArray[p_nStartIndex] || getNextArrayItem(p_aArray, (p_nStartIndex+1));

        }

        if (this.parent instanceof Menu) {

            nGroupIndex = this.groupIndex;
    
            aItemGroups = this.parent.getItemGroups();
    
            if (this.index < (aItemGroups[nGroupIndex].length - 1)) {
    
                oNextItem = getNextArrayItem(aItemGroups[nGroupIndex], 
                        (this.index+1));
    
            }
            else {
    
                if (nGroupIndex < (aItemGroups.length - 1)) {
    
                    nNextGroupIndex = nGroupIndex + 1;
    
                }
                else {
    
                    nNextGroupIndex = 0;
    
                }
    
                aNextGroup = getNextArrayItem(aItemGroups, nNextGroupIndex);
    
                // Retrieve the first menu item in the next group
    
                oNextItem = getNextArrayItem(aNextGroup, 0);
    
            }
    
            returnVal = (oNextItem.cfg.getProperty(_DISABLED) || 
                oNextItem.element.style.display == _NONE) ? 
                oNextItem.getNextEnabledSibling() : oNextItem;

        }
        
        return returnVal;

    },


    /**
    * @method getPreviousEnabledSibling
    * @description Finds the menu item's previous enabled sibling.
    * @return {YAHOO.widget.MenuItem}
    */
    getPreviousEnabledSibling: function () {

        var nGroupIndex,
            aItemGroups,
            oPreviousItem,
            nPreviousGroupIndex,
            aPreviousGroup,
            returnVal;

        function getPreviousArrayItem(p_aArray, p_nStartIndex) {

            return p_aArray[p_nStartIndex] || getPreviousArrayItem(p_aArray, (p_nStartIndex-1));

        }

        function getFirstItemIndex(p_aArray, p_nStartIndex) {

            return p_aArray[p_nStartIndex] ? p_nStartIndex : 
                getFirstItemIndex(p_aArray, (p_nStartIndex+1));

        }

       if (this.parent instanceof Menu) {

            nGroupIndex = this.groupIndex;
            aItemGroups = this.parent.getItemGroups();

    
            if (this.index > getFirstItemIndex(aItemGroups[nGroupIndex], 0)) {
    
                oPreviousItem = getPreviousArrayItem(aItemGroups[nGroupIndex], 
                        (this.index-1));
    
            }
            else {
    
                if (nGroupIndex > getFirstItemIndex(aItemGroups, 0)) {
    
                    nPreviousGroupIndex = nGroupIndex - 1;
    
                }
                else {
    
                    nPreviousGroupIndex = aItemGroups.length - 1;
    
                }
    
                aPreviousGroup = getPreviousArrayItem(aItemGroups, 
                    nPreviousGroupIndex);
    
                oPreviousItem = getPreviousArrayItem(aPreviousGroup, 
                        (aPreviousGroup.length - 1));
    
            }

            returnVal = (oPreviousItem.cfg.getProperty(_DISABLED) || 
                oPreviousItem.element.style.display == _NONE) ? 
                oPreviousItem.getPreviousEnabledSibling() : oPreviousItem;

        }
        
        return returnVal;

    },


    /**
    * @method focus
    * @description Causes the menu item to receive the focus and fires the 
    * focus event.
    */
    focus: function () {

        var oParent = this.parent,
            oAnchor = this._oAnchor,
            oActiveItem = oParent.activeItem;


        function setFocus() {

            try {

                if (!(UA.ie && !document.hasFocus())) {
                
					if (oActiveItem) {
		
						oActiveItem.blurEvent.fire();
		
					}
	
					oAnchor.focus();
					
					this.focusEvent.fire();
                
                }

            }
            catch(e) {
            
            }

        }


        if (!this.cfg.getProperty(_DISABLED) && oParent && oParent.cfg.getProperty(_VISIBLE) && 
            this.element.style.display != _NONE) {


            /*
                Setting focus via a timer fixes a race condition in Firefox, IE 
                and Opera where the browser viewport jumps as it trys to 
                position and focus the menu.
            */

            Lang.later(0, this, setFocus);

        }

    },


    /**
    * @method blur
    * @description Causes the menu item to lose focus and fires the 
    * blur event.
    */    
    blur: function () {

        var oParent = this.parent;

        if (!this.cfg.getProperty(_DISABLED) && oParent && oParent.cfg.getProperty(_VISIBLE)) {

            Lang.later(0, this, function () {

                try {
    
                    this._oAnchor.blur();
                    this.blurEvent.fire();    

                } 
                catch (e) {
                
                }
                
            }, 0);

        }

    },


    /**
    * @method hasFocus
    * @description Returns a boolean indicating whether or not the menu item
    * has focus.
    * @return {Boolean}
    */
    hasFocus: function () {
    
        return (YAHOO.widget.MenuManager.getFocusedMenuItem() == this);
    
    },


	/**
    * @method destroy
	* @description Removes the menu item's <code>&#60;li&#62;</code> element 
	* from its parent <code>&#60;ul&#62;</code> element.
	*/
    destroy: function () {

        var oEl = this.element,
            oSubmenu,
            oParentNode,
            aEventData,
            i;


        if (oEl) {


            // If the item has a submenu, destroy it first

            oSubmenu = this.cfg.getProperty(_SUBMENU);

            if (oSubmenu) {
            
                oSubmenu.destroy();
            
            }


            // Remove the element from the parent node

            oParentNode = oEl.parentNode;

            if (oParentNode) {

                oParentNode.removeChild(oEl);

                this.destroyEvent.fire();

            }


            // Remove CustomEvent listeners

			i = EVENT_TYPES.length - 1;

			do {

				aEventData = EVENT_TYPES[i];
				
				this[aEventData[0]].unsubscribeAll();

			}
			while (i--);
            
            
            this.cfg.configChangedEvent.unsubscribeAll();

        }

    },


    /**
    * @method toString
    * @description Returns a string representing the menu item.
    * @return {String}
    */
    toString: function () {

        var sReturnVal = _MENUITEM,
            sId = this.id;

        if (sId) {
    
            sReturnVal += (_SPACE + sId);
        
        }

        return sReturnVal;
    
    }

};

Lang.augmentProto(MenuItem, YAHOO.util.EventProvider);

})();
(function () {

	var _XY = "xy",
		_MOUSEDOWN = "mousedown",
		_CONTEXTMENU = "ContextMenu",
		_SPACE = " ";

/**
* Creates a list of options or commands which are made visible in response to 
* an HTML element's "contextmenu" event ("mousedown" for Opera).
*
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;div&#62;</code> element of the context menu.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;select&#62;</code> element to be used as the data source for the 
* context menu.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-
* html.html#ID-22445964">HTMLDivElement</a>} p_oElement Object specifying the 
* <code>&#60;div&#62;</code> element of the context menu.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-
* html.html#ID-94282980">HTMLSelectElement</a>} p_oElement Object specifying 
* the <code>&#60;select&#62;</code> element to be used as the data source for 
* the context menu.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the context menu. See configuration class documentation 
* for more details.
* @class ContextMenu
* @constructor
* @extends YAHOO.widget.Menu
* @namespace YAHOO.widget
*/
YAHOO.widget.ContextMenu = function(p_oElement, p_oConfig) {

    YAHOO.widget.ContextMenu.superclass.constructor.call(this, p_oElement, p_oConfig);

};


var Event = YAHOO.util.Event,
	UA = YAHOO.env.ua,
    ContextMenu = YAHOO.widget.ContextMenu,



    /**
    * Constant representing the name of the ContextMenu's events
    * @property EVENT_TYPES
    * @private
    * @final
    * @type Object
    */
    EVENT_TYPES = {

        "TRIGGER_CONTEXT_MENU": "triggerContextMenu",
        "CONTEXT_MENU": (UA.opera ? _MOUSEDOWN : "contextmenu"),
        "CLICK": "click"

    },
    
    
    /**
    * Constant representing the ContextMenu's configuration properties
    * @property DEFAULT_CONFIG
    * @private
    * @final
    * @type Object
    */
    TRIGGER_CONFIG = { 
		key: "trigger",
		suppressEvent: true
    };


/**
* @method position
* @description "beforeShow" event handler used to position the contextmenu.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {Array} p_aPos Array representing the xy position for the context menu.
*/
function position(p_sType, p_aArgs, p_aPos) {

    this.cfg.setProperty(_XY, p_aPos);
    
    this.beforeShowEvent.unsubscribe(position, p_aPos);

}


YAHOO.lang.extend(ContextMenu, YAHOO.widget.Menu, {



// Private properties


/**
* @property _oTrigger
* @description Object reference to the current value of the "trigger" 
* configuration property.
* @default null
* @private
* @type String|<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/leve
* l-one-html.html#ID-58190037">HTMLElement</a>|Array
*/
_oTrigger: null,


/**
* @property _bCancelled
* @description Boolean indicating if the display of the context menu should 
* be cancelled.
* @default false
* @private
* @type Boolean
*/
_bCancelled: false,



// Public properties


/**
* @property contextEventTarget
* @description Object reference for the HTML element that was the target of the
* "contextmenu" DOM event ("mousedown" for Opera) that triggered the display of 
* the context menu.
* @default null
* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-
* html.html#ID-58190037">HTMLElement</a>
*/
contextEventTarget: null,



// Events


/**
* @event triggerContextMenuEvent
* @description Custom Event wrapper for the "contextmenu" DOM event 
* ("mousedown" for Opera) fired by the element(s) that trigger the display of 
* the context menu.
*/
triggerContextMenuEvent: null,



/**
* @method init
* @description The ContextMenu class's initialization method. This method is 
* automatically called by the constructor, and sets up all DOM references for 
* pre-existing markup, and creates required markup if it is not already present.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;div&#62;</code> element of the context menu.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;select&#62;</code> element to be used as the data source for 
* the context menu.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-
* html.html#ID-22445964">HTMLDivElement</a>} p_oElement Object specifying the 
* <code>&#60;div&#62;</code> element of the context menu.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-
* html.html#ID-94282980">HTMLSelectElement</a>} p_oElement Object specifying 
* the <code>&#60;select&#62;</code> element to be used as the data source for 
* the context menu.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the context menu. See configuration class documentation 
* for more details.
*/
init: function(p_oElement, p_oConfig) {


    // Call the init of the superclass (YAHOO.widget.Menu)

    ContextMenu.superclass.init.call(this, p_oElement);


    this.beforeInitEvent.fire(ContextMenu);


    if (p_oConfig) {

        this.cfg.applyConfig(p_oConfig, true);

    }
    
    this.initEvent.fire(ContextMenu);
    
},


/**
* @method initEvents
* @description Initializes the custom events for the context menu.
*/
initEvents: function() {

	ContextMenu.superclass.initEvents.call(this);

    // Create custom events

    this.triggerContextMenuEvent = this.createEvent(EVENT_TYPES.TRIGGER_CONTEXT_MENU);

    this.triggerContextMenuEvent.signature = YAHOO.util.CustomEvent.LIST;

},


/**
* @method cancel
* @description Cancels the display of the context menu.
*/
cancel: function() {

    this._bCancelled = true;

},



// Private methods


/**
* @method _removeEventHandlers
* @description Removes all of the DOM event handlers from the HTML element(s) 
* whose "context menu" event ("click" for Opera) trigger the display of 
* the context menu.
* @private
*/
_removeEventHandlers: function() {

    var oTrigger = this._oTrigger;


    // Remove the event handlers from the trigger(s)

    if (oTrigger) {

        Event.removeListener(oTrigger, EVENT_TYPES.CONTEXT_MENU, this._onTriggerContextMenu);    
        
        if (UA.opera) {
        
            Event.removeListener(oTrigger, EVENT_TYPES.CLICK, this._onTriggerClick);
    
        }

    }

},



// Private event handlers



/**
* @method _onTriggerClick
* @description "click" event handler for the HTML element(s) identified as the 
* "trigger" for the context menu.  Used to cancel default behaviors in Opera.
* @private
* @param {Event} p_oEvent Object representing the DOM event object passed back 
* by the event utility (YAHOO.util.Event).
* @param {YAHOO.widget.ContextMenu} p_oMenu Object representing the context 
* menu that is handling the event.
*/
_onTriggerClick: function(p_oEvent, p_oMenu) {

    if (p_oEvent.ctrlKey) {
    
        Event.stopEvent(p_oEvent);

    }
    
},


/**
* @method _onTriggerContextMenu
* @description "contextmenu" event handler ("mousedown" for Opera) for the HTML 
* element(s) that trigger the display of the context menu.
* @private
* @param {Event} p_oEvent Object representing the DOM event object passed back 
* by the event utility (YAHOO.util.Event).
* @param {YAHOO.widget.ContextMenu} p_oMenu Object representing the context 
* menu that is handling the event.
*/
_onTriggerContextMenu: function(p_oEvent, p_oMenu) {

    var aXY;

    if (!(p_oEvent.type == _MOUSEDOWN && !p_oEvent.ctrlKey)) {
	
		this.contextEventTarget = Event.getTarget(p_oEvent);
	
		this.triggerContextMenuEvent.fire(p_oEvent);
		
	
		if (!this._bCancelled) {

			/*
				Prevent the browser's default context menu from appearing and 
				stop the propagation of the "contextmenu" event so that 
				other ContextMenu instances are not displayed.
			*/

			Event.stopEvent(p_oEvent);


			// Hide any other Menu instances that might be visible

			YAHOO.widget.MenuManager.hideVisible();
			
	

			// Position and display the context menu
	
			aXY = Event.getXY(p_oEvent);
	
	
			if (!YAHOO.util.Dom.inDocument(this.element)) {
	
				this.beforeShowEvent.subscribe(position, aXY);
	
			}
			else {
	
				this.cfg.setProperty(_XY, aXY);
			
			}
	
	
			this.show();
	
		}
	
		this._bCancelled = false;

    }

},



// Public methods


/**
* @method toString
* @description Returns a string representing the context menu.
* @return {String}
*/
toString: function() {

    var sReturnVal = _CONTEXTMENU,
        sId = this.id;

    if (sId) {

        sReturnVal += (_SPACE + sId);
    
    }

    return sReturnVal;

},


/**
* @method initDefaultConfig
* @description Initializes the class's configurable properties which can be 
* changed using the context menu's Config object ("cfg").
*/
initDefaultConfig: function() {

    ContextMenu.superclass.initDefaultConfig.call(this);

    /**
    * @config trigger
    * @description The HTML element(s) whose "contextmenu" event ("mousedown" 
    * for Opera) trigger the display of the context menu.  Can be a string 
    * representing the id attribute of the HTML element, an object reference 
    * for the HTML element, or an array of strings or HTML element references.
    * @default null
    * @type String|<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
    * level-one-html.html#ID-58190037">HTMLElement</a>|Array
    */
    this.cfg.addProperty(TRIGGER_CONFIG.key, 
        {
            handler: this.configTrigger, 
            suppressEvent: TRIGGER_CONFIG.suppressEvent 
        }
    );

},


/**
* @method destroy
* @description Removes the context menu's <code>&#60;div&#62;</code> element 
* (and accompanying child nodes) from the document.
*/
destroy: function() {

    // Remove the DOM event handlers from the current trigger(s)

    this._removeEventHandlers();


    // Continue with the superclass implementation of this method

    ContextMenu.superclass.destroy.call(this);

},



// Public event handlers for configuration properties


/**
* @method configTrigger
* @description Event handler for when the value of the "trigger" configuration 
* property changes. 
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.ContextMenu} p_oMenu Object representing the context 
* menu that fired the event.
*/
configTrigger: function(p_sType, p_aArgs, p_oMenu) {
    
    var oTrigger = p_aArgs[0];

    if (oTrigger) {

        /*
            If there is a current "trigger" - remove the event handlers 
            from that element(s) before assigning new ones
        */

        if (this._oTrigger) {
        
            this._removeEventHandlers();

        }

        this._oTrigger = oTrigger;


        /*
            Listen for the "mousedown" event in Opera b/c it does not 
            support the "contextmenu" event
        */ 
  
        Event.on(oTrigger, EVENT_TYPES.CONTEXT_MENU, this._onTriggerContextMenu, this, true);


        /*
            Assign a "click" event handler to the trigger element(s) for
            Opera to prevent default browser behaviors.
        */

        if (UA.opera) {
        
            Event.on(oTrigger, EVENT_TYPES.CLICK, this._onTriggerClick, this, true);

        }

    }
    else {
   
        this._removeEventHandlers();
    
    }
    
}

}); // END YAHOO.lang.extend

}());



/**
* Creates an item for a context menu.
* 
* @param {String} p_oObject String specifying the text of the context menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-74680021">HTMLLIElement</a>} p_oObject Object specifying the 
* <code>&#60;li&#62;</code> element of the context menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-38450247">HTMLOptGroupElement</a>} p_oObject Object 
* specifying the <code>&#60;optgroup&#62;</code> element of the context 
* menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-70901257">HTMLOptionElement</a>} p_oObject Object specifying 
* the <code>&#60;option&#62;</code> element of the context menu item.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the context menu item. See configuration class 
* documentation for more details.
* @class ContextMenuItem
* @constructor
* @extends YAHOO.widget.MenuItem
* @deprecated As of version 2.4.0 items for YAHOO.widget.ContextMenu instances
* are of type YAHOO.widget.MenuItem.
*/
YAHOO.widget.ContextMenuItem = YAHOO.widget.MenuItem;
(function () {

	var Lang = YAHOO.lang,

		// String constants
	
		_STATIC = "static",
		_DYNAMIC_STATIC = "dynamic," + _STATIC,
		_DISABLED = "disabled",
		_SELECTED = "selected",
		_AUTO_SUBMENU_DISPLAY = "autosubmenudisplay",
		_SUBMENU = "submenu",
		_VISIBLE = "visible",
		_SPACE = " ",
		_SUBMENU_TOGGLE_REGION = "submenutoggleregion",
		_MENUBAR = "MenuBar";

/**
* Horizontal collection of items, each of which can contain a submenu.
* 
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;div&#62;</code> element of the menu bar.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;select&#62;</code> element to be used as the data source for the 
* menu bar.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-22445964">HTMLDivElement</a>} p_oElement Object specifying 
* the <code>&#60;div&#62;</code> element of the menu bar.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-94282980">HTMLSelectElement</a>} p_oElement Object 
* specifying the <code>&#60;select&#62;</code> element to be used as the data 
* source for the menu bar.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the menu bar. See configuration class documentation for
* more details.
* @class MenuBar
* @constructor
* @extends YAHOO.widget.Menu
* @namespace YAHOO.widget
*/
YAHOO.widget.MenuBar = function(p_oElement, p_oConfig) {

    YAHOO.widget.MenuBar.superclass.constructor.call(this, p_oElement, p_oConfig);

};


/**
* @method checkPosition
* @description Checks to make sure that the value of the "position" property 
* is one of the supported strings. Returns true if the position is supported.
* @private
* @param {Object} p_sPosition String specifying the position of the menu.
* @return {Boolean}
*/
function checkPosition(p_sPosition) {

	var returnVal = false;

    if (Lang.isString(p_sPosition)) {

        returnVal = (_DYNAMIC_STATIC.indexOf((p_sPosition.toLowerCase())) != -1);

    }
    
    return returnVal;

}


var Event = YAHOO.util.Event,
    MenuBar = YAHOO.widget.MenuBar,

    POSITION_CONFIG =  { 
		key: "position", 
		value: _STATIC, 
		validator: checkPosition, 
		supercedes: [_VISIBLE] 
	}, 

	SUBMENU_ALIGNMENT_CONFIG =  { 
		key: "submenualignment", 
		value: ["tl","bl"]
	},

	AUTO_SUBMENU_DISPLAY_CONFIG =  { 
		key: _AUTO_SUBMENU_DISPLAY, 
		value: false, 
		validator: Lang.isBoolean,
		suppressEvent: true
	},
	
	SUBMENU_TOGGLE_REGION_CONFIG = {
		key: _SUBMENU_TOGGLE_REGION, 
		value: false, 
		validator: Lang.isBoolean
	};



Lang.extend(MenuBar, YAHOO.widget.Menu, {

/**
* @method init
* @description The MenuBar class's initialization method. This method is 
* automatically called by the constructor, and sets up all DOM references for 
* pre-existing markup, and creates required markup if it is not already present.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;div&#62;</code> element of the menu bar.
* @param {String} p_oElement String specifying the id attribute of the 
* <code>&#60;select&#62;</code> element to be used as the data source for the 
* menu bar.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-22445964">HTMLDivElement</a>} p_oElement Object specifying 
* the <code>&#60;div&#62;</code> element of the menu bar.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-94282980">HTMLSelectElement</a>} p_oElement Object 
* specifying the <code>&#60;select&#62;</code> element to be used as the data 
* source for the menu bar.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the menu bar. See configuration class documentation for
* more details.
*/
init: function(p_oElement, p_oConfig) {

    if(!this.ITEM_TYPE) {

        this.ITEM_TYPE = YAHOO.widget.MenuBarItem;

    }


    // Call the init of the superclass (YAHOO.widget.Menu)

    MenuBar.superclass.init.call(this, p_oElement);


    this.beforeInitEvent.fire(MenuBar);


    if(p_oConfig) {

        this.cfg.applyConfig(p_oConfig, true);

    }

    this.initEvent.fire(MenuBar);

},



// Constants


/**
* @property CSS_CLASS_NAME
* @description String representing the CSS class(es) to be applied to the menu 
* bar's <code>&#60;div&#62;</code> element.
* @default "yuimenubar"
* @final
* @type String
*/
CSS_CLASS_NAME: "yuimenubar",


/**
* @property SUBMENU_TOGGLE_REGION_WIDTH
* @description Width (in pixels) of the area of a MenuBarItem that, when pressed, will toggle the
* display of the MenuBarItem's submenu.
* @default 20
* @final
* @type Number
*/
SUBMENU_TOGGLE_REGION_WIDTH: 20,


// Protected event handlers


/**
* @method _onKeyDown
* @description "keydown" Custom Event handler for the menu bar.
* @private
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuBar} p_oMenuBar Object representing the menu bar 
* that fired the event.
*/
_onKeyDown: function(p_sType, p_aArgs, p_oMenuBar) {

    var oEvent = p_aArgs[0],
        oItem = p_aArgs[1],
        oSubmenu,
        oItemCfg,
        oNextItem;


    if(oItem && !oItem.cfg.getProperty(_DISABLED)) {

        oItemCfg = oItem.cfg;

        switch(oEvent.keyCode) {
    
            case 37:    // Left arrow
            case 39:    // Right arrow
    
                if(oItem == this.activeItem && !oItemCfg.getProperty(_SELECTED)) {
    
                    oItemCfg.setProperty(_SELECTED, true);
    
                }
                else {
    
                    oNextItem = (oEvent.keyCode == 37) ? 
                        oItem.getPreviousEnabledSibling() : 
                        oItem.getNextEnabledSibling();
            
                    if(oNextItem) {
    
                        this.clearActiveItem();
    
                        oNextItem.cfg.setProperty(_SELECTED, true);
                        
						oSubmenu = oNextItem.cfg.getProperty(_SUBMENU);
						
						if(oSubmenu) {
					
							oSubmenu.show();
							oSubmenu.setInitialFocus();
						
						}
						else {
							oNextItem.focus();  
						}
    
                    }
    
                }
    
                Event.preventDefault(oEvent);
    
            break;
    
            case 40:    // Down arrow
    
                if(this.activeItem != oItem) {
    
                    this.clearActiveItem();
    
                    oItemCfg.setProperty(_SELECTED, true);
                    oItem.focus();
                
                }
    
                oSubmenu = oItemCfg.getProperty(_SUBMENU);
    
                if(oSubmenu) {
    
                    if(oSubmenu.cfg.getProperty(_VISIBLE)) {
    
                        oSubmenu.setInitialSelection();
                        oSubmenu.setInitialFocus();
                    
                    }
                    else {
    
                        oSubmenu.show();
                        oSubmenu.setInitialFocus();
                    
                    }
    
                }
    
                Event.preventDefault(oEvent);
    
            break;
    
        }

    }


    if(oEvent.keyCode == 27 && this.activeItem) { // Esc key

        oSubmenu = this.activeItem.cfg.getProperty(_SUBMENU);

        if(oSubmenu && oSubmenu.cfg.getProperty(_VISIBLE)) {
        
            oSubmenu.hide();
            this.activeItem.focus();
        
        }
        else {

            this.activeItem.cfg.setProperty(_SELECTED, false);
            this.activeItem.blur();
    
        }

        Event.preventDefault(oEvent);
    
    }

},


/**
* @method _onClick
* @description "click" event handler for the menu bar.
* @protected
* @param {String} p_sType String representing the name of the event that 
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuBar} p_oMenuBar Object representing the menu bar 
* that fired the event.
*/
_onClick: function(p_sType, p_aArgs, p_oMenuBar) {

    MenuBar.superclass._onClick.call(this, p_sType, p_aArgs, p_oMenuBar);

    var oItem = p_aArgs[1],
        bReturnVal = true,
    	oItemEl,
        oEvent,
        oTarget,
        oActiveItem,
        oConfig,
        oSubmenu,
        nMenuItemX,
        nToggleRegion;


	var toggleSubmenuDisplay = function () {

		if(oSubmenu.cfg.getProperty(_VISIBLE)) {
		
			oSubmenu.hide();
		
		}
		else {
		
			oSubmenu.show();                    
		
		}
	
	};
    

    if(oItem && !oItem.cfg.getProperty(_DISABLED)) {

        oEvent = p_aArgs[0];
        oTarget = Event.getTarget(oEvent);
        oActiveItem = this.activeItem;
        oConfig = this.cfg;


        // Hide any other submenus that might be visible
    
        if(oActiveItem && oActiveItem != oItem) {
    
            this.clearActiveItem();
    
        }

    
        oItem.cfg.setProperty(_SELECTED, true);
    

        // Show the submenu for the item
    
        oSubmenu = oItem.cfg.getProperty(_SUBMENU);


        if(oSubmenu) {

			oItemEl = oItem.element;
			nMenuItemX = YAHOO.util.Dom.getX(oItemEl);
			nToggleRegion = nMenuItemX + (oItemEl.offsetWidth - this.SUBMENU_TOGGLE_REGION_WIDTH);

			if (oConfig.getProperty(_SUBMENU_TOGGLE_REGION)) {

				if (Event.getPageX(oEvent) > nToggleRegion) {

					toggleSubmenuDisplay();

					Event.preventDefault(oEvent);

					/*
						 Return false so that other click event handlers are not called when the 
						 user clicks inside the toggle region.
					*/
					bReturnVal = false;
				
				}
        
        	}
			else {

				toggleSubmenuDisplay();
            
            }
        
        }
    
    }


	return bReturnVal;

},



// Public methods

/**
* @method configSubmenuToggle
* @description Event handler for when the "submenutoggleregion" configuration property of 
* a MenuBar changes.
* @param {String} p_sType The name of the event that was fired.
* @param {Array} p_aArgs Collection of arguments sent when the event was fired.
*/
configSubmenuToggle: function (p_sType, p_aArgs) {

	var bSubmenuToggle = p_aArgs[0];
	
	if (bSubmenuToggle) {
	
		this.cfg.setProperty(_AUTO_SUBMENU_DISPLAY, false);
	
	}

},


/**
* @method toString
* @description Returns a string representing the menu bar.
* @return {String}
*/
toString: function() {

    var sReturnVal = _MENUBAR,
        sId = this.id;

    if(sId) {

        sReturnVal += (_SPACE + sId);
    
    }

    return sReturnVal;

},


/**
* @description Initializes the class's configurable properties which can be
* changed using the menu bar's Config object ("cfg").
* @method initDefaultConfig
*/
initDefaultConfig: function() {

    MenuBar.superclass.initDefaultConfig.call(this);

    var oConfig = this.cfg;

	// Add configuration properties


    /*
        Set the default value for the "position" configuration property
        to "static" by re-adding the property.
    */


    /**
    * @config position
    * @description String indicating how a menu bar should be positioned on the 
    * screen.  Possible values are "static" and "dynamic."  Static menu bars 
    * are visible by default and reside in the normal flow of the document 
    * (CSS position: static).  Dynamic menu bars are hidden by default, reside
    * out of the normal flow of the document (CSS position: absolute), and can 
    * overlay other elements on the screen.
    * @default static
    * @type String
    */
    oConfig.addProperty(
        POSITION_CONFIG.key, 
        {
            handler: this.configPosition, 
            value: POSITION_CONFIG.value, 
            validator: POSITION_CONFIG.validator,
            supercedes: POSITION_CONFIG.supercedes
        }
    );


    /*
        Set the default value for the "submenualignment" configuration property
        to ["tl","bl"] by re-adding the property.
    */

    /**
    * @config submenualignment
    * @description Array defining how submenus should be aligned to their 
    * parent menu bar item. The format is: [itemCorner, submenuCorner].
    * @default ["tl","bl"]
    * @type Array
    */
    oConfig.addProperty(
        SUBMENU_ALIGNMENT_CONFIG.key, 
        {
            value: SUBMENU_ALIGNMENT_CONFIG.value,
            suppressEvent: SUBMENU_ALIGNMENT_CONFIG.suppressEvent
        }
    );


    /*
        Change the default value for the "autosubmenudisplay" configuration 
        property to "false" by re-adding the property.
    */

    /**
    * @config autosubmenudisplay
    * @description Boolean indicating if submenus are automatically made 
    * visible when the user mouses over the menu bar's items.
    * @default false
    * @type Boolean
    */
	oConfig.addProperty(
	   AUTO_SUBMENU_DISPLAY_CONFIG.key, 
	   {
	       value: AUTO_SUBMENU_DISPLAY_CONFIG.value, 
	       validator: AUTO_SUBMENU_DISPLAY_CONFIG.validator,
	       suppressEvent: AUTO_SUBMENU_DISPLAY_CONFIG.suppressEvent
       } 
    );


    /**
    * @config submenutoggleregion
    * @description Boolean indicating if only a specific region of a MenuBarItem should toggle the 
    * display of a submenu.  The default width of the region is determined by the value of the
    * SUBMENU_TOGGLE_REGION_WIDTH property.  If set to true, the autosubmenudisplay 
    * configuration property will be set to false, and any click event listeners will not be 
    * called when the user clicks inside the submenu toggle region of a MenuBarItem.  If the 
    * user clicks outside of the submenu toggle region, the MenuBarItem will maintain its 
    * standard behavior.
    * @default false
    * @type Boolean
    */
	oConfig.addProperty(
	   SUBMENU_TOGGLE_REGION_CONFIG.key, 
	   {
	       value: SUBMENU_TOGGLE_REGION_CONFIG.value, 
	       validator: SUBMENU_TOGGLE_REGION_CONFIG.validator,
	       handler: this.configSubmenuToggle
       } 
    );

}
 
}); // END YAHOO.lang.extend

}());



/**
* Creates an item for a menu bar.
* 
* @param {String} p_oObject String specifying the text of the menu bar item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-74680021">HTMLLIElement</a>} p_oObject Object specifying the 
* <code>&#60;li&#62;</code> element of the menu bar item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-38450247">HTMLOptGroupElement</a>} p_oObject Object 
* specifying the <code>&#60;optgroup&#62;</code> element of the menu bar item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-70901257">HTMLOptionElement</a>} p_oObject Object specifying 
* the <code>&#60;option&#62;</code> element of the menu bar item.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the menu bar item. See configuration class documentation 
* for more details.
* @class MenuBarItem
* @constructor
* @extends YAHOO.widget.MenuItem
*/
YAHOO.widget.MenuBarItem = function(p_oObject, p_oConfig) {

    YAHOO.widget.MenuBarItem.superclass.constructor.call(this, p_oObject, p_oConfig);

};

YAHOO.lang.extend(YAHOO.widget.MenuBarItem, YAHOO.widget.MenuItem, {



/**
* @method init
* @description The MenuBarItem class's initialization method. This method is 
* automatically called by the constructor, and sets up all DOM references for 
* pre-existing markup, and creates required markup if it is not already present.
* @param {String} p_oObject String specifying the text of the menu bar item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-74680021">HTMLLIElement</a>} p_oObject Object specifying the 
* <code>&#60;li&#62;</code> element of the menu bar item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-38450247">HTMLOptGroupElement</a>} p_oObject Object 
* specifying the <code>&#60;optgroup&#62;</code> element of the menu bar item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-70901257">HTMLOptionElement</a>} p_oObject Object specifying 
* the <code>&#60;option&#62;</code> element of the menu bar item.
* @param {Object} p_oConfig Optional. Object literal specifying the 
* configuration for the menu bar item. See configuration class documentation 
* for more details.
*/
init: function(p_oObject, p_oConfig) {

    if(!this.SUBMENU_TYPE) {

        this.SUBMENU_TYPE = YAHOO.widget.Menu;

    }


    /* 
        Call the init of the superclass (YAHOO.widget.MenuItem)
        Note: We don't pass the user config in here yet 
        because we only want it executed once, at the lowest 
        subclass level.
    */ 

    YAHOO.widget.MenuBarItem.superclass.init.call(this, p_oObject);  


    var oConfig = this.cfg;

    if(p_oConfig) {

        oConfig.applyConfig(p_oConfig, true);

    }

    oConfig.fireQueue();

},



// Constants


/**
* @property CSS_CLASS_NAME
* @description String representing the CSS class(es) to be applied to the 
* <code>&#60;li&#62;</code> element of the menu bar item.
* @default "yuimenubaritem"
* @final
* @type String
*/
CSS_CLASS_NAME: "yuimenubaritem",


/**
* @property CSS_LABEL_CLASS_NAME
* @description String representing the CSS class(es) to be applied to the 
* menu bar item's <code>&#60;a&#62;</code> element.
* @default "yuimenubaritemlabel"
* @final
* @type String
*/
CSS_LABEL_CLASS_NAME: "yuimenubaritemlabel",



// Public methods


/**
* @method toString
* @description Returns a string representing the menu bar item.
* @return {String}
*/
toString: function() {

    var sReturnVal = "MenuBarItem";

    if(this.cfg && this.cfg.getProperty("text")) {

        sReturnVal += (": " + this.cfg.getProperty("text"));

    }

    return sReturnVal;

}
    
}); // END YAHOO.lang.extend
YAHOO.register("menu", YAHOO.widget.Menu, {version: "2.7.0", build: "1796"});
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
(function() {
var Dom = YAHOO.util.Dom,
    Event = YAHOO.util.Event,
    Lang = YAHOO.lang;
    /**
     * @module editor    
     * @description <p>Creates a rich custom Toolbar Button. Primarily used with the Rich Text Editor's Toolbar</p>
     * @class ToolbarButtonAdvanced
     * @namespace YAHOO.widget
     * @requires yahoo, dom, element, event, container_core, menu, button
     * 
     * Provides a toolbar button based on the button and menu widgets.
     * @constructor
     * @class ToolbarButtonAdvanced
     * @param {String/HTMLElement} el The element to turn into a button.
     * @param {Object} attrs Object liternal containing configuration parameters.
    */
    if (YAHOO.widget.Button) {
        YAHOO.widget.ToolbarButtonAdvanced = YAHOO.widget.Button;
        /**
        * @property buttonType
        * @private
        * @description Tells if the Button is a Rich Button or a Simple Button
        */
        YAHOO.widget.ToolbarButtonAdvanced.prototype.buttonType = 'rich';
        /**
        * @method checkValue
        * @param {String} value The value of the option that we want to mark as selected
        * @description Select an option by value
        */
        YAHOO.widget.ToolbarButtonAdvanced.prototype.checkValue = function(value) {
            var _menuItems = this.getMenu().getItems();
            if (_menuItems.length === 0) {
                this.getMenu()._onBeforeShow();
                _menuItems = this.getMenu().getItems();
            }
            for (var i = 0; i < _menuItems.length; i++) {
                _menuItems[i].cfg.setProperty('checked', false);
                if (_menuItems[i].value == value) {
                    _menuItems[i].cfg.setProperty('checked', true);
                }
            }      
        };
    } else {
        YAHOO.widget.ToolbarButtonAdvanced = function() {};
    }


    /**
     * @description <p>Creates a basic custom Toolbar Button. Primarily used with the Rich Text Editor's Toolbar</p><p>Provides a toolbar button based on the button and menu widgets, &lt;select&gt; elements are used in place of menu's.</p>
     * @class ToolbarButton
     * @namespace YAHOO.widget
     * @requires yahoo, dom, element, event
     * @extends YAHOO.util.Element
     * 
     * 
     * @constructor
     * @param {String/HTMLElement} el The element to turn into a button.
     * @param {Object} attrs Object liternal containing configuration parameters.
    */

    YAHOO.widget.ToolbarButton = function(el, attrs) {
        
        if (Lang.isObject(arguments[0]) && !Dom.get(el).nodeType) {
            attrs = el;
        }
        var local_attrs = (attrs || {});

        var oConfig = {
            element: null,
            attributes: local_attrs
        };

        if (!oConfig.attributes.type) {
            oConfig.attributes.type = 'push';
        }
        
        oConfig.element = document.createElement('span');
        oConfig.element.setAttribute('unselectable', 'on');
        oConfig.element.className = 'yui-button yui-' + oConfig.attributes.type + '-button';
        oConfig.element.innerHTML = '<span class="first-child"><a href="#">LABEL</a></span>';
        oConfig.element.firstChild.firstChild.tabIndex = '-1';
        oConfig.attributes.id = (oConfig.attributes.id || Dom.generateId());
        oConfig.element.id = oConfig.attributes.id;

        YAHOO.widget.ToolbarButton.superclass.constructor.call(this, oConfig.element, oConfig.attributes);
    };

    YAHOO.extend(YAHOO.widget.ToolbarButton, YAHOO.util.Element, {
        /**
        * @property buttonType
        * @private
        * @description Tells if the Button is a Rich Button or a Simple Button
        */
        buttonType: 'normal',
        /**
        * @method _handleMouseOver
        * @private
        * @description Adds classes to the button elements on mouseover (hover)
        */
        _handleMouseOver: function() {
            if (!this.get('disabled')) {
                this.addClass('yui-button-hover');
                this.addClass('yui-' + this.get('type') + '-button-hover');
            }
        },
        /**
        * @method _handleMouseOut
        * @private
        * @description Removes classes from the button elements on mouseout (hover)
        */
        _handleMouseOut: function() {
            this.removeClass('yui-button-hover');
            this.removeClass('yui-' + this.get('type') + '-button-hover');
        },
        /**
        * @method checkValue
        * @param {String} value The value of the option that we want to mark as selected
        * @description Select an option by value
        */
        checkValue: function(value) {
            if (this.get('type') == 'menu') {
                var opts = this._button.options;
                for (var i = 0; i < opts.length; i++) {
                    if (opts[i].value == value) {
                        opts.selectedIndex = i;
                    }
                }
            }
        },
        /** 
        * @method init
        * @description The ToolbarButton class's initialization method
        */        
        init: function(p_oElement, p_oAttributes) {
            YAHOO.widget.ToolbarButton.superclass.init.call(this, p_oElement, p_oAttributes);

            this.on('mouseover', this._handleMouseOver, this, true);
            this.on('mouseout', this._handleMouseOut, this, true);
            this.on('click', function(ev) {
                Event.stopEvent(ev);
                return false;
            }, this, true);
        },
        /**
        * @method initAttributes
        * @description Initializes all of the configuration attributes used to create 
        * the toolbar.
        * @param {Object} attr Object literal specifying a set of 
        * configuration attributes used to create the toolbar.
        */        
        initAttributes: function(attr) {
            YAHOO.widget.ToolbarButton.superclass.initAttributes.call(this, attr);
            /**
            * @attribute value
            * @description The value of the button
            * @type String
            */            
            this.setAttributeConfig('value', {
                value: attr.value
            });
            /**
            * @attribute menu
            * @description The menu attribute, see YAHOO.widget.Button
            * @type Object
            */            
            this.setAttributeConfig('menu', {
                value: attr.menu || false
            });
            /**
            * @attribute type
            * @description The type of button to create: push, menu, color, select, spin
            * @type String
            */            
            this.setAttributeConfig('type', {
                value: attr.type,
                writeOnce: true,
                method: function(type) {
                    var el, opt;
                    if (!this._button) {
                        this._button = this.get('element').getElementsByTagName('a')[0];
                    }
                    switch (type) {
                        case 'select':
                        case 'menu':
                            el = document.createElement('select');
                            var menu = this.get('menu');
                            for (var i = 0; i < menu.length; i++) {
                                opt = document.createElement('option');
                                opt.innerHTML = menu[i].text;
                                opt.value = menu[i].value;
                                if (menu[i].checked) {
                                    opt.selected = true;
                                }
                                el.appendChild(opt);
                            }
                            this._button.parentNode.replaceChild(el, this._button);
                            Event.on(el, 'change', this._handleSelect, this, true);
                            this._button = el;
                            break;
                    }
                }
            });

            /**
            * @attribute disabled
            * @description Set the button into a disabled state
            * @type String
            */            
            this.setAttributeConfig('disabled', {
                value: attr.disabled || false,
                method: function(disabled) {
                    if (disabled) {
                        this.addClass('yui-button-disabled');
                        this.addClass('yui-' + this.get('type') + '-button-disabled');
                    } else {
                        this.removeClass('yui-button-disabled');
                        this.removeClass('yui-' + this.get('type') + '-button-disabled');
                    }
                    if (this.get('type') == 'menu') {
                        this._button.disabled = disabled;
                    }
                }
            });

            /**
            * @attribute label
            * @description The text label for the button
            * @type String
            */            
            this.setAttributeConfig('label', {
                value: attr.label,
                method: function(label) {
                    if (!this._button) {
                        this._button = this.get('element').getElementsByTagName('a')[0];
                    }
                    if (this.get('type') == 'push') {
                        this._button.innerHTML = label;
                    }
                }
            });

            /**
            * @attribute title
            * @description The title of the button
            * @type String
            */            
            this.setAttributeConfig('title', {
                value: attr.title
            });

            /**
            * @config container
            * @description The container that the button is rendered to, handled by Toolbar
            * @type String
            */            
            this.setAttributeConfig('container', {
                value: null,
                writeOnce: true,
                method: function(cont) {
                    this.appendTo(cont);
                }
            });

        },
        /** 
        * @private
        * @method _handleSelect
        * @description The event fired when a change event gets fired on a select element
        * @param {Event} ev The change event.
        */        
        _handleSelect: function(ev) {
            var tar = Event.getTarget(ev);
            var value = tar.options[tar.selectedIndex].value;
            this.fireEvent('change', {type: 'change', value: value });
        },
        /** 
        * @method getMenu
        * @description A stub function to mimic YAHOO.widget.Button's getMenu method
        */        
        getMenu: function() {
            return this.get('menu');
        },
        /** 
        * @method destroy
        * @description Destroy the button
        */        
        destroy: function() {
            Event.purgeElement(this.get('element'), true);
            this.get('element').parentNode.removeChild(this.get('element'));
            //Brutal Object Destroy
            for (var i in this) {
                if (Lang.hasOwnProperty(this, i)) {
                    this[i] = null;
                }
            }       
        },
        /** 
        * @method fireEvent
        * @description Overridden fireEvent method to prevent DOM events from firing if the button is disabled.
        */        
        fireEvent: function(p_sType, p_aArgs) {
            //  Disabled buttons should not respond to DOM events
            if (this.DOM_EVENTS[p_sType] && this.get('disabled')) {
                Event.stopEvent(p_aArgs);
                return;
            }
        
            YAHOO.widget.ToolbarButton.superclass.fireEvent.call(this, p_sType, p_aArgs);
        },
        /**
        * @method toString
        * @description Returns a string representing the toolbar.
        * @return {String}
        */        
        toString: function() {
            return 'ToolbarButton (' + this.get('id') + ')';
        }
        
    });
})();
/**
 * @module editor
 * @description <p>Creates a rich Toolbar widget based on Button. Primarily used with the Rich Text Editor</p>
 * @namespace YAHOO.widget
 * @requires yahoo, dom, element, event, toolbarbutton
 * @optional container_core, dragdrop
 */
(function() {
var Dom = YAHOO.util.Dom,
    Event = YAHOO.util.Event,
    Lang = YAHOO.lang;
    
    var getButton = function(id) {
        var button = id;
        if (Lang.isString(id)) {
            button = this.getButtonById(id);
        }
        if (Lang.isNumber(id)) {
            button = this.getButtonByIndex(id);
        }
        if ((!(button instanceof YAHOO.widget.ToolbarButton)) && (!(button instanceof YAHOO.widget.ToolbarButtonAdvanced))) {
            button = this.getButtonByValue(id);
        }
        if ((button instanceof YAHOO.widget.ToolbarButton) || (button instanceof YAHOO.widget.ToolbarButtonAdvanced)) {
            return button;
        }
        return false;
    };

    /**
     * Provides a rich toolbar widget based on the button and menu widgets
     * @constructor
     * @class Toolbar
     * @extends YAHOO.util.Element
     * @param {String/HTMLElement} el The element to turn into a toolbar.
     * @param {Object} attrs Object liternal containing configuration parameters.
    */
    YAHOO.widget.Toolbar = function(el, attrs) {
        
        if (Lang.isObject(arguments[0]) && !Dom.get(el).nodeType) {
            attrs = el;
        }
        var local_attrs = {};
        if (attrs) {
            Lang.augmentObject(local_attrs, attrs); //Break the config reference
        }
        

        var oConfig = {
            element: null,
            attributes: local_attrs
        };
        
        
        if (Lang.isString(el) && Dom.get(el)) {
            oConfig.element = Dom.get(el);
        } else if (Lang.isObject(el) && Dom.get(el) && Dom.get(el).nodeType) {  
            oConfig.element = Dom.get(el);
        }
        

        if (!oConfig.element) {
            oConfig.element = document.createElement('DIV');
            oConfig.element.id = Dom.generateId();
            
            if (local_attrs.container && Dom.get(local_attrs.container)) {
                Dom.get(local_attrs.container).appendChild(oConfig.element);
            }
        }
        

        if (!oConfig.element.id) {
            oConfig.element.id = ((Lang.isString(el)) ? el : Dom.generateId());
        }
        
        var fs = document.createElement('fieldset');
        var lg = document.createElement('legend');
        lg.innerHTML = 'Toolbar';
        fs.appendChild(lg);
        
        var cont = document.createElement('DIV');
        oConfig.attributes.cont = cont;
        Dom.addClass(cont, 'yui-toolbar-subcont');
        fs.appendChild(cont);
        oConfig.element.appendChild(fs);

        oConfig.element.tabIndex = -1;

        
        oConfig.attributes.element = oConfig.element;
        oConfig.attributes.id = oConfig.element.id;

        YAHOO.widget.Toolbar.superclass.constructor.call(this, oConfig.element, oConfig.attributes);
         
    };

    YAHOO.extend(YAHOO.widget.Toolbar, YAHOO.util.Element, {
        /**
        * @method _addMenuClasses
        * @private
        * @description This method is called from Menu's renderEvent to add a few more classes to the menu items
        * @param {String} ev The event that fired.
        * @param {Array} na Array of event information.
        * @param {Object} o Button config object. 
        */
        _addMenuClasses: function(ev, na, o) {
            Dom.addClass(this.element, 'yui-toolbar-' + o.get('value') + '-menu');
            if (Dom.hasClass(o._button.parentNode.parentNode, 'yui-toolbar-select')) {
                Dom.addClass(this.element, 'yui-toolbar-select-menu');
            }
            var items = this.getItems();
            for (var i = 0; i < items.length; i++) {
                Dom.addClass(items[i].element, 'yui-toolbar-' + o.get('value') + '-' + ((items[i].value) ? items[i].value.replace(/ /g, '-').toLowerCase() : items[i]._oText.nodeValue.replace(/ /g, '-').toLowerCase()));
                Dom.addClass(items[i].element, 'yui-toolbar-' + o.get('value') + '-' + ((items[i].value) ? items[i].value.replace(/ /g, '-') : items[i]._oText.nodeValue.replace(/ /g, '-')));
            }
        },
        /** 
        * @property buttonType
        * @description The default button to use
        * @type Object
        */
        buttonType: YAHOO.widget.ToolbarButton,
        /** 
        * @property dd
        * @description The DragDrop instance associated with the Toolbar
        * @type Object
        */
        dd: null,
        /** 
        * @property _colorData
        * @description Object reference containing colors hex and text values.
        * @type Object
        */
        _colorData: {
/* {{{ _colorData */
    '#111111': 'Obsidian',
    '#2D2D2D': 'Dark Gray',
    '#434343': 'Shale',
    '#5B5B5B': 'Flint',
    '#737373': 'Gray',
    '#8B8B8B': 'Concrete',
    '#A2A2A2': 'Gray',
    '#B9B9B9': 'Titanium',
    '#000000': 'Black',
    '#D0D0D0': 'Light Gray',
    '#E6E6E6': 'Silver',
    '#FFFFFF': 'White',
    '#BFBF00': 'Pumpkin',
    '#FFFF00': 'Yellow',
    '#FFFF40': 'Banana',
    '#FFFF80': 'Pale Yellow',
    '#FFFFBF': 'Butter',
    '#525330': 'Raw Siena',
    '#898A49': 'Mildew',
    '#AEA945': 'Olive',
    '#7F7F00': 'Paprika',
    '#C3BE71': 'Earth',
    '#E0DCAA': 'Khaki',
    '#FCFAE1': 'Cream',
    '#60BF00': 'Cactus',
    '#80FF00': 'Chartreuse',
    '#A0FF40': 'Green',
    '#C0FF80': 'Pale Lime',
    '#DFFFBF': 'Light Mint',
    '#3B5738': 'Green',
    '#668F5A': 'Lime Gray',
    '#7F9757': 'Yellow',
    '#407F00': 'Clover',
    '#8A9B55': 'Pistachio',
    '#B7C296': 'Light Jade',
    '#E6EBD5': 'Breakwater',
    '#00BF00': 'Spring Frost',
    '#00FF80': 'Pastel Green',
    '#40FFA0': 'Light Emerald',
    '#80FFC0': 'Sea Foam',
    '#BFFFDF': 'Sea Mist',
    '#033D21': 'Dark Forrest',
    '#438059': 'Moss',
    '#7FA37C': 'Medium Green',
    '#007F40': 'Pine',
    '#8DAE94': 'Yellow Gray Green',
    '#ACC6B5': 'Aqua Lung',
    '#DDEBE2': 'Sea Vapor',
    '#00BFBF': 'Fog',
    '#00FFFF': 'Cyan',
    '#40FFFF': 'Turquoise Blue',
    '#80FFFF': 'Light Aqua',
    '#BFFFFF': 'Pale Cyan',
    '#033D3D': 'Dark Teal',
    '#347D7E': 'Gray Turquoise',
    '#609A9F': 'Green Blue',
    '#007F7F': 'Seaweed',
    '#96BDC4': 'Green Gray',
    '#B5D1D7': 'Soapstone',
    '#E2F1F4': 'Light Turquoise',
    '#0060BF': 'Summer Sky',
    '#0080FF': 'Sky Blue',
    '#40A0FF': 'Electric Blue',
    '#80C0FF': 'Light Azure',
    '#BFDFFF': 'Ice Blue',
    '#1B2C48': 'Navy',
    '#385376': 'Biscay',
    '#57708F': 'Dusty Blue',
    '#00407F': 'Sea Blue',
    '#7792AC': 'Sky Blue Gray',
    '#A8BED1': 'Morning Sky',
    '#DEEBF6': 'Vapor',
    '#0000BF': 'Deep Blue',
    '#0000FF': 'Blue',
    '#4040FF': 'Cerulean Blue',
    '#8080FF': 'Evening Blue',
    '#BFBFFF': 'Light Blue',
    '#212143': 'Deep Indigo',
    '#373E68': 'Sea Blue',
    '#444F75': 'Night Blue',
    '#00007F': 'Indigo Blue',
    '#585E82': 'Dockside',
    '#8687A4': 'Blue Gray',
    '#D2D1E1': 'Light Blue Gray',
    '#6000BF': 'Neon Violet',
    '#8000FF': 'Blue Violet',
    '#A040FF': 'Violet Purple',
    '#C080FF': 'Violet Dusk',
    '#DFBFFF': 'Pale Lavender',
    '#302449': 'Cool Shale',
    '#54466F': 'Dark Indigo',
    '#655A7F': 'Dark Violet',
    '#40007F': 'Violet',
    '#726284': 'Smoky Violet',
    '#9E8FA9': 'Slate Gray',
    '#DCD1DF': 'Violet White',
    '#BF00BF': 'Royal Violet',
    '#FF00FF': 'Fuchsia',
    '#FF40FF': 'Magenta',
    '#FF80FF': 'Orchid',
    '#FFBFFF': 'Pale Magenta',
    '#4A234A': 'Dark Purple',
    '#794A72': 'Medium Purple',
    '#936386': 'Cool Granite',
    '#7F007F': 'Purple',
    '#9D7292': 'Purple Moon',
    '#C0A0B6': 'Pale Purple',
    '#ECDAE5': 'Pink Cloud',
    '#BF005F': 'Hot Pink',
    '#FF007F': 'Deep Pink',
    '#FF409F': 'Grape',
    '#FF80BF': 'Electric Pink',
    '#FFBFDF': 'Pink',
    '#451528': 'Purple Red',
    '#823857': 'Purple Dino',
    '#A94A76': 'Purple Gray',
    '#7F003F': 'Rose',
    '#BC6F95': 'Antique Mauve',
    '#D8A5BB': 'Cool Marble',
    '#F7DDE9': 'Pink Granite',
    '#C00000': 'Apple',
    '#FF0000': 'Fire Truck',
    '#FF4040': 'Pale Red',
    '#FF8080': 'Salmon',
    '#FFC0C0': 'Warm Pink',
    '#441415': 'Sepia',
    '#82393C': 'Rust',
    '#AA4D4E': 'Brick',
    '#800000': 'Brick Red',
    '#BC6E6E': 'Mauve',
    '#D8A3A4': 'Shrimp Pink',
    '#F8DDDD': 'Shell Pink',
    '#BF5F00': 'Dark Orange',
    '#FF7F00': 'Orange',
    '#FF9F40': 'Grapefruit',
    '#FFBF80': 'Canteloupe',
    '#FFDFBF': 'Wax',
    '#482C1B': 'Dark Brick',
    '#855A40': 'Dirt',
    '#B27C51': 'Tan',
    '#7F3F00': 'Nutmeg',
    '#C49B71': 'Mustard',
    '#E1C4A8': 'Pale Tan',
    '#FDEEE0': 'Marble'
/* }}} */
        },
        /** 
        * @property _colorPicker
        * @description The HTML Element containing the colorPicker
        * @type HTMLElement
        */
        _colorPicker: null,
        /** 
        * @property STR_COLLAPSE
        * @description String for Toolbar Collapse Button
        * @type String
        */
        STR_COLLAPSE: 'Collapse Toolbar',
        /** 
        * @property STR_SPIN_LABEL
        * @description String for spinbutton dynamic label. Note the {VALUE} will be replaced with YAHOO.lang.substitute
        * @type String
        */
        STR_SPIN_LABEL: 'Spin Button with value {VALUE}. Use Control Shift Up Arrow and Control Shift Down arrow keys to increase or decrease the value.',
        /** 
        * @property STR_SPIN_UP
        * @description String for spinbutton up
        * @type String
        */
        STR_SPIN_UP: 'Click to increase the value of this input',
        /** 
        * @property STR_SPIN_DOWN
        * @description String for spinbutton down
        * @type String
        */
        STR_SPIN_DOWN: 'Click to decrease the value of this input',
        /** 
        * @property _titlebar
        * @description Object reference to the titlebar
        * @type HTMLElement
        */
        _titlebar: null,
        /** 
        * @property browser
        * @description Standard browser detection
        * @type Object
        */
        browser: YAHOO.env.ua,
        /**
        * @protected
        * @property _buttonList
        * @description Internal property list of current buttons in the toolbar
        * @type Array
        */
        _buttonList: null,
        /**
        * @protected
        * @property _buttonGroupList
        * @description Internal property list of current button groups in the toolbar
        * @type Array
        */
        _buttonGroupList: null,
        /**
        * @protected
        * @property _sep
        * @description Internal reference to the separator HTML Element for cloning
        * @type HTMLElement
        */
        _sep: null,
        /**
        * @protected
        * @property _sepCount
        * @description Internal refernce for counting separators, so we can give them a useful class name for styling
        * @type Number
        */
        _sepCount: null,
        /**
        * @protected
        * @property draghandle
        * @type HTMLElement
        */
        _dragHandle: null,
        /**
        * @protected
        * @property _toolbarConfigs
        * @type Object
        */
        _toolbarConfigs: {
            renderer: true
        },
        /**
        * @protected
        * @property CLASS_CONTAINER
        * @description Default CSS class to apply to the toolbar container element
        * @type String
        */
        CLASS_CONTAINER: 'yui-toolbar-container',
        /**
        * @protected
        * @property CLASS_DRAGHANDLE
        * @description Default CSS class to apply to the toolbar's drag handle element
        * @type String
        */
        CLASS_DRAGHANDLE: 'yui-toolbar-draghandle',
        /**
        * @protected
        * @property CLASS_SEPARATOR
        * @description Default CSS class to apply to all separators in the toolbar
        * @type String
        */
        CLASS_SEPARATOR: 'yui-toolbar-separator',
        /**
        * @protected
        * @property CLASS_DISABLED
        * @description Default CSS class to apply when the toolbar is disabled
        * @type String
        */
        CLASS_DISABLED: 'yui-toolbar-disabled',
        /**
        * @protected
        * @property CLASS_PREFIX
        * @description Default prefix for dynamically created class names
        * @type String
        */
        CLASS_PREFIX: 'yui-toolbar',
        /** 
        * @method init
        * @description The Toolbar class's initialization method
        */
        init: function(p_oElement, p_oAttributes) {
            YAHOO.widget.Toolbar.superclass.init.call(this, p_oElement, p_oAttributes);

        },
        /**
        * @method initAttributes
        * @description Initializes all of the configuration attributes used to create 
        * the toolbar.
        * @param {Object} attr Object literal specifying a set of 
        * configuration attributes used to create the toolbar.
        */
        initAttributes: function(attr) {
            YAHOO.widget.Toolbar.superclass.initAttributes.call(this, attr);
            this.addClass(this.CLASS_CONTAINER);

            /**
            * @attribute buttonType
            * @description The buttonType to use (advanced or basic)
            * @type String
            */
            this.setAttributeConfig('buttonType', {
                value: attr.buttonType || 'basic',
                writeOnce: true,
                validator: function(type) {
                    switch (type) {
                        case 'advanced':
                        case 'basic':
                            return true;
                    }
                    return false;
                },
                method: function(type) {
                    if (type == 'advanced') {
                        if (YAHOO.widget.Button) {
                            this.buttonType = YAHOO.widget.ToolbarButtonAdvanced;
                        } else {
                            this.buttonType = YAHOO.widget.ToolbarButton;
                        }
                    } else {
                        this.buttonType = YAHOO.widget.ToolbarButton;
                    }
                }
            });


            /**
            * @attribute buttons
            * @description Object specifying the buttons to include in the toolbar
            * Example:
            * <code><pre>
            * {
            *   { id: 'b3', type: 'button', label: 'Underline', value: 'underline' },
            *   { type: 'separator' },
            *   { id: 'b4', type: 'menu', label: 'Align', value: 'align',
            *       menu: [
            *           { text: "Left", value: 'alignleft' },
            *           { text: "Center", value: 'aligncenter' },
            *           { text: "Right", value: 'alignright' }
            *       ]
            *   }
            * }
            * </pre></code>
            * @type Array
            */
            
            this.setAttributeConfig('buttons', {
                value: [],
                writeOnce: true,
                method: function(data) {
                    for (var i in data) {
                        if (Lang.hasOwnProperty(data, i)) {
                            if (data[i].type == 'separator') {
                                this.addSeparator();
                            } else if (data[i].group !== undefined) {
                                this.addButtonGroup(data[i]);
                            } else {
                                this.addButton(data[i]);
                            }
                        }
                    }
                }
            });

            /**
            * @attribute disabled
            * @description Boolean indicating if the toolbar should be disabled. It will also disable the draggable attribute if it is on.
            * @default false
            * @type Boolean
            */
            this.setAttributeConfig('disabled', {
                value: false,
                method: function(disabled) {
                    if (this.get('disabled') === disabled) {
                        return false;
                    }
                    if (disabled) {
                        this.addClass(this.CLASS_DISABLED);
                        this.set('draggable', false);
                        this.disableAllButtons();
                    } else {
                        this.removeClass(this.CLASS_DISABLED);
                        if (this._configs.draggable._initialConfig.value) {
                            //Draggable by default, set it back
                            this.set('draggable', true);
                        }
                        this.resetAllButtons();
                    }
                }
            });

            /**
            * @config cont
            * @description The container for the toolbar.
            * @type HTMLElement
            */
            this.setAttributeConfig('cont', {
                value: attr.cont,
                readOnly: true
            });


            /**
            * @attribute grouplabels
            * @description Boolean indicating if the toolbar should show the group label's text string.
            * @default true
            * @type Boolean
            */
            this.setAttributeConfig('grouplabels', {
                value: ((attr.grouplabels === false) ? false : true),
                method: function(grouplabels) {
                    if (grouplabels) {
                        Dom.removeClass(this.get('cont'), (this.CLASS_PREFIX + '-nogrouplabels'));
                    } else {
                        Dom.addClass(this.get('cont'), (this.CLASS_PREFIX + '-nogrouplabels'));
                    }
                }
            });
            /**
            * @attribute titlebar
            * @description Boolean indicating if the toolbar should have a titlebar. If
            * passed a string, it will use that as the titlebar text
            * @default false
            * @type Boolean or String
            */
            this.setAttributeConfig('titlebar', {
                value: false,
                method: function(titlebar) {
                    if (titlebar) {
                        if (this._titlebar && this._titlebar.parentNode) {
                            this._titlebar.parentNode.removeChild(this._titlebar);
                        }
                        this._titlebar = document.createElement('DIV');
                        this._titlebar.tabIndex = '-1';
                        Event.on(this._titlebar, 'focus', function() {
                            this._handleFocus();
                        }, this, true);
                        Dom.addClass(this._titlebar, this.CLASS_PREFIX + '-titlebar');
                        if (Lang.isString(titlebar)) {
                            var h2 = document.createElement('h2');
                            h2.tabIndex = '-1';
                            h2.innerHTML = '<a href="#" tabIndex="0">' + titlebar + '</a>';
                            this._titlebar.appendChild(h2);
                            Event.on(h2.firstChild, 'click', function(ev) {
                                Event.stopEvent(ev);
                            });
                            Event.on([h2, h2.firstChild], 'focus', function() {
                                this._handleFocus();
                            }, this, true);
                        }
                        if (this.get('firstChild')) {
                            this.insertBefore(this._titlebar, this.get('firstChild'));
                        } else {
                            this.appendChild(this._titlebar);
                        }
                        if (this.get('collapse')) {
                            this.set('collapse', true);
                        }
                    } else if (this._titlebar) {
                        if (this._titlebar && this._titlebar.parentNode) {
                            this._titlebar.parentNode.removeChild(this._titlebar);
                        }
                    }
                }
            });


            /**
            * @attribute collapse
            * @description Boolean indicating if the the titlebar should have a collapse button.
            * The collapse button will not remove the toolbar, it will minimize it to the titlebar
            * @default false
            * @type Boolean
            */
            this.setAttributeConfig('collapse', {
                value: false,
                method: function(collapse) {
                    if (this._titlebar) {
                        var collapseEl = null;
                        var el = Dom.getElementsByClassName('collapse', 'span', this._titlebar);
                        if (collapse) {
                            if (el.length > 0) {
                                //There is already a collapse button
                                return true;
                            }
                            collapseEl = document.createElement('SPAN');
                            collapseEl.innerHTML = 'X';
                            collapseEl.title = this.STR_COLLAPSE;

                            Dom.addClass(collapseEl, 'collapse');
                            this._titlebar.appendChild(collapseEl);
                            Event.addListener(collapseEl, 'click', function() {
                                if (Dom.hasClass(this.get('cont').parentNode, 'yui-toolbar-container-collapsed')) {
                                    this.collapse(false); //Expand Toolbar
                                } else {
                                    this.collapse(); //Collapse Toolbar
                                }
                            }, this, true);
                        } else {
                            collapseEl = Dom.getElementsByClassName('collapse', 'span', this._titlebar);
                            if (collapseEl[0]) {
                                if (Dom.hasClass(this.get('cont').parentNode, 'yui-toolbar-container-collapsed')) {
                                    //We are closed, reopen the titlebar..
                                    this.collapse(false); //Expand Toolbar
                                }
                                collapseEl[0].parentNode.removeChild(collapseEl[0]);
                            }
                        }
                    }
                }
            });

            /**
            * @attribute draggable
            * @description Boolean indicating if the toolbar should be draggable.  
            * @default false
            * @type Boolean
            */

            this.setAttributeConfig('draggable', {
                value: (attr.draggable || false),
                method: function(draggable) {
                    if (draggable && !this.get('titlebar')) {
                        if (!this._dragHandle) {
                            this._dragHandle = document.createElement('SPAN');
                            this._dragHandle.innerHTML = '|';
                            this._dragHandle.setAttribute('title', 'Click to drag the toolbar');
                            this._dragHandle.id = this.get('id') + '_draghandle';
                            Dom.addClass(this._dragHandle, this.CLASS_DRAGHANDLE);
                            if (this.get('cont').hasChildNodes()) {
                                this.get('cont').insertBefore(this._dragHandle, this.get('cont').firstChild);
                            } else {
                                this.get('cont').appendChild(this._dragHandle);
                            }
                            this.dd = new YAHOO.util.DD(this.get('id'));
                            this.dd.setHandleElId(this._dragHandle.id);
                            
                        }
                    } else {
                        if (this._dragHandle) {
                            this._dragHandle.parentNode.removeChild(this._dragHandle);
                            this._dragHandle = null;
                            this.dd = null;
                        }
                    }
                    if (this._titlebar) {
                        if (draggable) {
                            this.dd = new YAHOO.util.DD(this.get('id'));
                            this.dd.setHandleElId(this._titlebar);
                            Dom.addClass(this._titlebar, 'draggable');
                        } else {
                            Dom.removeClass(this._titlebar, 'draggable');
                            if (this.dd) {
                                this.dd.unreg();
                                this.dd = null;
                            }
                        }
                    }
                },
                validator: function(value) {
                    var ret = true;
                    if (!YAHOO.util.DD) {
                        ret = false;
                    }
                    return ret;
                }
            });

        },
        /**
        * @method addButtonGroup
        * @description Add a new button group to the toolbar. (uses addButton)
        * @param {Object} oGroup Object literal reference to the Groups Config (contains an array of button configs as well as the group label)
        */
        addButtonGroup: function(oGroup) {
            if (!this.get('element')) {
                this._queue[this._queue.length] = ['addButtonGroup', arguments];
                return false;
            }
            
            if (!this.hasClass(this.CLASS_PREFIX + '-grouped')) {
                this.addClass(this.CLASS_PREFIX + '-grouped');
            }
            var div = document.createElement('DIV');
            Dom.addClass(div, this.CLASS_PREFIX + '-group');
            Dom.addClass(div, this.CLASS_PREFIX + '-group-' + oGroup.group);
            if (oGroup.label) {
                var label = document.createElement('h3');
                label.innerHTML = oGroup.label;
                div.appendChild(label);
            }
            if (!this.get('grouplabels')) {
                Dom.addClass(this.get('cont'), this.CLASS_PREFIX, '-nogrouplabels');
            }

            this.get('cont').appendChild(div);

            //For accessibility, let's put all of the group buttons in an Unordered List
            var ul = document.createElement('ul');
            div.appendChild(ul);

            if (!this._buttonGroupList) {
                this._buttonGroupList = {};
            }
            
            this._buttonGroupList[oGroup.group] = ul;

            for (var i = 0; i < oGroup.buttons.length; i++) {
                var li = document.createElement('li');
                li.className = this.CLASS_PREFIX + '-groupitem';
                ul.appendChild(li);
                if ((oGroup.buttons[i].type !== undefined) && oGroup.buttons[i].type == 'separator') {
                    this.addSeparator(li);
                } else {
                    oGroup.buttons[i].container = li;
                    this.addButton(oGroup.buttons[i]);
                }
            }
        },
        /**
        * @method addButtonToGroup
        * @description Add a new button to a toolbar group. Buttons supported:
        *   push, split, menu, select, color, spin
        * @param {Object} oButton Object literal reference to the Button's Config
        * @param {String} group The Group identifier passed into the initial config
        * @param {HTMLElement} after Optional HTML element to insert this button after in the DOM.
        */
        addButtonToGroup: function(oButton, group, after) {
            var groupCont = this._buttonGroupList[group];
            var li = document.createElement('li');
            li.className = this.CLASS_PREFIX + '-groupitem';
            oButton.container = li;
            this.addButton(oButton, after);
            groupCont.appendChild(li);
        },
        /**
        * @method addButton
        * @description Add a new button to the toolbar. Buttons supported:
        *   push, split, menu, select, color, spin
        * @param {Object} oButton Object literal reference to the Button's Config
        * @param {HTMLElement} after Optional HTML element to insert this button after in the DOM.
        */
        addButton: function(oButton, after) {
            if (!this.get('element')) {
                this._queue[this._queue.length] = ['addButton', arguments];
                return false;
            }
            if (!this._buttonList) {
                this._buttonList = [];
            }
            if (!oButton.container) {
                oButton.container = this.get('cont');
            }

            if ((oButton.type == 'menu') || (oButton.type == 'split') || (oButton.type == 'select')) {
                if (Lang.isArray(oButton.menu)) {
                    for (var i in oButton.menu) {
                        if (Lang.hasOwnProperty(oButton.menu, i)) {
                            var funcObject = {
                                fn: function(ev, x, oMenu) {
                                    if (!oButton.menucmd) {
                                        oButton.menucmd = oButton.value;
                                    }
                                    oButton.value = ((oMenu.value) ? oMenu.value : oMenu._oText.nodeValue);
                                },
                                scope: this
                            };
                            oButton.menu[i].onclick = funcObject;
                        }
                    }
                }
            }
            var _oButton = {}, skip = false;
            for (var o in oButton) {
                if (Lang.hasOwnProperty(oButton, o)) {
                    if (!this._toolbarConfigs[o]) {
                        _oButton[o] = oButton[o];
                    }
                }
            }
            if (oButton.type == 'select') {
                _oButton.type = 'menu';
            }
            if (oButton.type == 'spin') {
                _oButton.type = 'push';
            }
            if (_oButton.type == 'color') {
                if (YAHOO.widget.Overlay) {
                    _oButton = this._makeColorButton(_oButton);
                } else {
                    skip = true;
                }
            }
            if (_oButton.menu) {
                if ((YAHOO.widget.Overlay) && (oButton.menu instanceof YAHOO.widget.Overlay)) {
                    oButton.menu.showEvent.subscribe(function() {
                        this._button = _oButton;
                    });
                } else {
                    for (var m = 0; m < _oButton.menu.length; m++) {
                        if (!_oButton.menu[m].value) {
                            _oButton.menu[m].value = _oButton.menu[m].text;
                        }
                    }
                    if (this.browser.webkit) {
                        _oButton.focusmenu = false;
                    }
                }
            }
            if (skip) {
                oButton = false;
            } else {
                //Add to .get('buttons') manually
                this._configs.buttons.value[this._configs.buttons.value.length] = oButton;
                
                var tmp = new this.buttonType(_oButton);
                tmp.get('element').tabIndex = '-1';
                tmp.get('element').setAttribute('role', 'button');
                tmp._selected = true;
                
                if (this.get('disabled')) {
                    //Toolbar is disabled, disable the new button too!
                    tmp.set('disabled', true);
                }
                if (!oButton.id) {
                    oButton.id = tmp.get('id');
                }
                
                if (after) {
                    var el = tmp.get('element');
                    var nextSib = null;
                    if (after.get) {
                        nextSib = after.get('element').nextSibling;
                    } else if (after.nextSibling) {
                        nextSib = after.nextSibling;
                    }
                    if (nextSib) {
                        nextSib.parentNode.insertBefore(el, nextSib);
                    }
                }
                tmp.addClass(this.CLASS_PREFIX + '-' + tmp.get('value'));

                var icon = document.createElement('span');
                icon.className = this.CLASS_PREFIX + '-icon';
                tmp.get('element').insertBefore(icon, tmp.get('firstChild'));
                if (tmp._button.tagName.toLowerCase() == 'button') {
                    tmp.get('element').setAttribute('unselectable', 'on');
                    //Replace the Button HTML Element with an a href if it exists
                    var a = document.createElement('a');
                    a.innerHTML = tmp._button.innerHTML;
                    a.href = '#';
                    a.tabIndex = '-1';
                    Event.on(a, 'click', function(ev) {
                        Event.stopEvent(ev);
                    });
                    tmp._button.parentNode.replaceChild(a, tmp._button);
                    tmp._button = a;
                }

                if (oButton.type == 'select') {
                    if (tmp._button.tagName.toLowerCase() == 'select') {
                        icon.parentNode.removeChild(icon);
                        var iel = tmp._button;
                        var parEl = tmp.get('element');
                        parEl.parentNode.replaceChild(iel, parEl);
                    } else {
                        //Don't put a class on it if it's a real select element
                        tmp.addClass(this.CLASS_PREFIX + '-select');
                    }
                }
                if (oButton.type == 'spin') {
                    if (!Lang.isArray(oButton.range)) {
                        oButton.range = [ 10, 100 ];
                    }
                    this._makeSpinButton(tmp, oButton);
                }
                tmp.get('element').setAttribute('title', tmp.get('label'));
                if (oButton.type != 'spin') {
                    if ((YAHOO.widget.Overlay) && (_oButton.menu instanceof YAHOO.widget.Overlay)) {
                        var showPicker = function(ev) {
                            var exec = true;
                            if (ev.keyCode && (ev.keyCode == 9)) {
                                exec = false;
                            }
                            if (exec) {
                                if (this._colorPicker) {
                                    this._colorPicker._button = oButton.value;
                                }
                                var menuEL = tmp.getMenu().element;
                                if (Dom.getStyle(menuEL, 'visibility') == 'hidden') {
                                    tmp.getMenu().show();
                                } else {
                                    tmp.getMenu().hide();
                                }
                            }
                            YAHOO.util.Event.stopEvent(ev);
                        };
                        tmp.on('mousedown', showPicker, oButton, this);
                        tmp.on('keydown', showPicker, oButton, this);
                        
                    } else if ((oButton.type != 'menu') && (oButton.type != 'select')) {
                        tmp.on('keypress', this._buttonClick, oButton, this);
                        tmp.on('mousedown', function(ev) {
                            YAHOO.util.Event.stopEvent(ev);
                            this._buttonClick(ev, oButton);
                        }, oButton, this);
                        tmp.on('click', function(ev) {
                            YAHOO.util.Event.stopEvent(ev);
                        });
                    } else {
                        //Stop the mousedown event so we can trap the selection in the editor!
                        tmp.on('mousedown', function(ev) {
                            YAHOO.util.Event.stopEvent(ev);
                        });
                        tmp.on('click', function(ev) {
                            YAHOO.util.Event.stopEvent(ev);
                        });
                        tmp.on('change', function(ev) {
                            if (!oButton.menucmd) {
                                oButton.menucmd = oButton.value;
                            }
                            oButton.value = ev.value;
                            this._buttonClick(ev, oButton);
                        }, this, true);

                        var self = this;
                        //Hijack the mousedown event in the menu and make it fire a button click..
                        tmp.on('appendTo', function() {
                            var tmp = this;
                            if (tmp.getMenu() && tmp.getMenu().mouseDownEvent) {
                                tmp.getMenu().mouseDownEvent.subscribe(function(ev, args) {
                                    var oMenu = args[1];
                                    YAHOO.util.Event.stopEvent(args[0]);
                                    tmp._onMenuClick(args[0], tmp);
                                    if (!oButton.menucmd) {
                                        oButton.menucmd = oButton.value;
                                    }
                                    oButton.value = ((oMenu.value) ? oMenu.value : oMenu._oText.nodeValue);
                                    self._buttonClick.call(self, args[1], oButton);
                                    tmp._hideMenu();
                                    return false;
                                });
                                tmp.getMenu().clickEvent.subscribe(function(ev, args) {
                                    YAHOO.util.Event.stopEvent(args[0]);
                                });
                                tmp.getMenu().mouseUpEvent.subscribe(function(ev, args) {
                                    YAHOO.util.Event.stopEvent(args[0]);
                                });
                            }
                        });
                        
                    }
                } else {
                    //Stop the mousedown event so we can trap the selection in the editor!
                    tmp.on('mousedown', function(ev) {
                        YAHOO.util.Event.stopEvent(ev);
                    });
                    tmp.on('click', function(ev) {
                        YAHOO.util.Event.stopEvent(ev);
                    });
                }
                if (this.browser.ie) {
                    /*
                    //Add a couple of new events for IE
                    tmp.DOM_EVENTS.focusin = true;
                    tmp.DOM_EVENTS.focusout = true;
                    
                    //Stop them so we don't loose focus in the Editor
                    tmp.on('focusin', function(ev) {
                        YAHOO.util.Event.stopEvent(ev);
                    }, oButton, this);
                    
                    tmp.on('focusout', function(ev) {
                        YAHOO.util.Event.stopEvent(ev);
                    }, oButton, this);
                    tmp.on('click', function(ev) {
                        YAHOO.util.Event.stopEvent(ev);
                    }, oButton, this);
                    */
                }
                if (this.browser.webkit) {
                    //This will keep the document from gaining focus and the editor from loosing it..
                    //Forcefully remove the focus calls in button!
                    tmp.hasFocus = function() {
                        return true;
                    };
                }
                this._buttonList[this._buttonList.length] = tmp;
                if ((oButton.type == 'menu') || (oButton.type == 'split') || (oButton.type == 'select')) {
                    if (Lang.isArray(oButton.menu)) {
                        var menu = tmp.getMenu();
                        if (menu && menu.renderEvent) {
                            menu.renderEvent.subscribe(this._addMenuClasses, tmp);
                            if (oButton.renderer) {
                                menu.renderEvent.subscribe(oButton.renderer, tmp);
                            }
                        }
                    }
                }
            }
            return oButton;
        },
        /**
        * @method addSeparator
        * @description Add a new button separator to the toolbar.
        * @param {HTMLElement} cont Optional HTML element to insert this button into.
        * @param {HTMLElement} after Optional HTML element to insert this button after in the DOM.
        */
        addSeparator: function(cont, after) {
            if (!this.get('element')) {
                this._queue[this._queue.length] = ['addSeparator', arguments];
                return false;
            }
            var sepCont = ((cont) ? cont : this.get('cont'));
            if (!this.get('element')) {
                this._queue[this._queue.length] = ['addSeparator', arguments];
                return false;
            }
            if (this._sepCount === null) {
                this._sepCount = 0;
            }
            if (!this._sep) {
                this._sep = document.createElement('SPAN');
                Dom.addClass(this._sep, this.CLASS_SEPARATOR);
                this._sep.innerHTML = '|';
            }
            var _sep = this._sep.cloneNode(true);
            this._sepCount++;
            Dom.addClass(_sep, this.CLASS_SEPARATOR + '-' + this._sepCount);
            if (after) {
                var nextSib = null;
                if (after.get) {
                    nextSib = after.get('element').nextSibling;
                } else if (after.nextSibling) {
                    nextSib = after.nextSibling;
                } else {
                    nextSib = after;
                }
                if (nextSib) {
                    if (nextSib == after) {
                        nextSib.parentNode.appendChild(_sep);
                    } else {
                        nextSib.parentNode.insertBefore(_sep, nextSib);
                    }
                }
            } else {
                sepCont.appendChild(_sep);
            }
            return _sep;
        },
        /**
        * @method _createColorPicker
        * @private
        * @description Creates the core DOM reference to the color picker menu item.
        * @param {String} id the id of the toolbar to prefix this DOM container with.
        */
        _createColorPicker: function(id) {
            if (Dom.get(id + '_colors')) {
               Dom.get(id + '_colors').parentNode.removeChild(Dom.get(id + '_colors'));
            }
            var picker = document.createElement('div');
            picker.className = 'yui-toolbar-colors';
            picker.id = id + '_colors';
            picker.style.display = 'none';
            Event.on(window, 'load', function() {
                document.body.appendChild(picker);
            }, this, true);

            this._colorPicker = picker;

            var html = '';
            for (var i in this._colorData) {
                if (Lang.hasOwnProperty(this._colorData, i)) {
                    html += '<a style="background-color: ' + i + '" href="#">' + i.replace('#', '') + '</a>';
                }
            }
            html += '<span><em>X</em><strong></strong></span>';
            window.setTimeout(function() {
                picker.innerHTML = html;
            }, 0);

            Event.on(picker, 'mouseover', function(ev) {
                var picker = this._colorPicker;
                var em = picker.getElementsByTagName('em')[0];
                var strong = picker.getElementsByTagName('strong')[0];
                var tar = Event.getTarget(ev);
                if (tar.tagName.toLowerCase() == 'a') {
                    em.style.backgroundColor = tar.style.backgroundColor;
                    strong.innerHTML = this._colorData['#' + tar.innerHTML] + '<br>' + tar.innerHTML;
                }
            }, this, true);
            Event.on(picker, 'focus', function(ev) {
                Event.stopEvent(ev);
            });
            Event.on(picker, 'click', function(ev) {
                Event.stopEvent(ev);
            });
            Event.on(picker, 'mousedown', function(ev) {
                Event.stopEvent(ev);
                var tar = Event.getTarget(ev);
                if (tar.tagName.toLowerCase() == 'a') {
                    var retVal = this.fireEvent('colorPickerClicked', { type: 'colorPickerClicked', target: this, button: this._colorPicker._button, color: tar.innerHTML, colorName: this._colorData['#' + tar.innerHTML] } );
                    if (retVal !== false) {
                        var info = {
                            color: tar.innerHTML,
                            colorName: this._colorData['#' + tar.innerHTML],
                            value: this._colorPicker._button 
                        };
                    
                        this.fireEvent('buttonClick', { type: 'buttonClick', target: this.get('element'), button: info });
                    }
                    this.getButtonByValue(this._colorPicker._button).getMenu().hide();
                }
            }, this, true);
        },
        /**
        * @method _resetColorPicker
        * @private
        * @description Clears the currently selected color or mouseover color in the color picker.
        */
        _resetColorPicker: function() {
            var em = this._colorPicker.getElementsByTagName('em')[0];
            var strong = this._colorPicker.getElementsByTagName('strong')[0];
            em.style.backgroundColor = 'transparent';
            strong.innerHTML = '';
        },
        /**
        * @method _makeColorButton
        * @private
        * @description Called to turn a "color" button into a menu button with an Overlay for the menu.
        * @param {Object} _oButton <a href="YAHOO.widget.ToolbarButton.html">YAHOO.widget.ToolbarButton</a> reference
        */
        _makeColorButton: function(_oButton) {
            if (!this._colorPicker) {   
                this._createColorPicker(this.get('id'));
            }
            _oButton.type = 'color';
            _oButton.menu = new YAHOO.widget.Overlay(this.get('id') + '_' + _oButton.value + '_menu', { visible: false, position: 'absolute', iframe: true });
            _oButton.menu.setBody('');
            _oButton.menu.render(this.get('cont'));
            Dom.addClass(_oButton.menu.element, 'yui-button-menu');
            Dom.addClass(_oButton.menu.element, 'yui-color-button-menu');
            _oButton.menu.beforeShowEvent.subscribe(function() {
                _oButton.menu.cfg.setProperty('zindex', 5); //Re Adjust the overlays zIndex.. not sure why.
                _oButton.menu.cfg.setProperty('context', [this.getButtonById(_oButton.id).get('element'), 'tl', 'bl']); //Re Adjust the overlay.. not sure why.
                //Move the DOM reference of the color picker to the Overlay that we are about to show.
                this._resetColorPicker();
                var _p = this._colorPicker;
                if (_p.parentNode) {
                    _p.parentNode.removeChild(_p);
                }
                _oButton.menu.setBody('');
                _oButton.menu.appendToBody(_p);
                this._colorPicker.style.display = 'block';
            }, this, true);
            return _oButton;
        },
        /**
        * @private
        * @method _makeSpinButton
        * @description Create a button similar to an OS Spin button.. It has an up/down arrow combo to scroll through a range of int values.
        * @param {Object} _button <a href="YAHOO.widget.ToolbarButton.html">YAHOO.widget.ToolbarButton</a> reference
        * @param {Object} oButton Object literal containing the buttons initial config
        */
        _makeSpinButton: function(_button, oButton) {
            _button.addClass(this.CLASS_PREFIX + '-spinbutton');
            var self = this,
                _par = _button._button.parentNode.parentNode, //parentNode of Button Element for appending child
                range = oButton.range,
                _b1 = document.createElement('a'),
                _b2 = document.createElement('a');
                _b1.href = '#';
                _b2.href = '#';
                _b1.tabIndex = '-1';
                _b2.tabIndex = '-1';
            
            //Setup the up and down arrows
            _b1.className = 'up';
            _b1.title = this.STR_SPIN_UP;
            _b1.innerHTML = this.STR_SPIN_UP;
            _b2.className = 'down';
            _b2.title = this.STR_SPIN_DOWN;
            _b2.innerHTML = this.STR_SPIN_DOWN;

            //Append them to the container
            _par.appendChild(_b1);
            _par.appendChild(_b2);
            
            var label = YAHOO.lang.substitute(this.STR_SPIN_LABEL, { VALUE: _button.get('label') });
            _button.set('title', label);

            var cleanVal = function(value) {
                value = ((value < range[0]) ? range[0] : value);
                value = ((value > range[1]) ? range[1] : value);
                return value;
            };

            var br = this.browser;
            var tbar = false;
            var strLabel = this.STR_SPIN_LABEL;
            if (this._titlebar && this._titlebar.firstChild) {
                tbar = this._titlebar.firstChild;
            }
            
            var _intUp = function(ev) {
                YAHOO.util.Event.stopEvent(ev);
                if (!_button.get('disabled') && (ev.keyCode != 9)) {
                    var value = parseInt(_button.get('label'), 10);
                    value++;
                    value = cleanVal(value);
                    _button.set('label', ''+value);
                    var label = YAHOO.lang.substitute(strLabel, { VALUE: _button.get('label') });
                    _button.set('title', label);
                    if (!br.webkit && tbar) {
                        //tbar.focus(); //We do this for accessibility, on the re-focus of the element, a screen reader will re-read the title that was just changed
                        //_button.focus();
                    }
                    self._buttonClick(ev, oButton);
                }
            };

            var _intDown = function(ev) {
                YAHOO.util.Event.stopEvent(ev);
                if (!_button.get('disabled') && (ev.keyCode != 9)) {
                    var value = parseInt(_button.get('label'), 10);
                    value--;
                    value = cleanVal(value);

                    _button.set('label', ''+value);
                    var label = YAHOO.lang.substitute(strLabel, { VALUE: _button.get('label') });
                    _button.set('title', label);
                    if (!br.webkit && tbar) {
                        //tbar.focus(); //We do this for accessibility, on the re-focus of the element, a screen reader will re-read the title that was just changed
                        //_button.focus();
                    }
                    self._buttonClick(ev, oButton);
                }
            };

            var _intKeyUp = function(ev) {
                if (ev.keyCode == 38) {
                    _intUp(ev);
                } else if (ev.keyCode == 40) {
                    _intDown(ev);
                } else if (ev.keyCode == 107 && ev.shiftKey) {  //Plus Key
                    _intUp(ev);
                } else if (ev.keyCode == 109 && ev.shiftKey) {  //Minus Key
                    _intDown(ev);
                }
            };

            //Handle arrow keys..
            _button.on('keydown', _intKeyUp, this, true);

            //Listen for the click on the up button and act on it
            //Listen for the click on the down button and act on it
            Event.on(_b1, 'mousedown',function(ev) {
                Event.stopEvent(ev);
            }, this, true);
            Event.on(_b2, 'mousedown', function(ev) {
                Event.stopEvent(ev);
            }, this, true);
            Event.on(_b1, 'click', _intUp, this, true);
            Event.on(_b2, 'click', _intDown, this, true);
        },
        /**
        * @protected
        * @method _buttonClick
        * @description Click handler for all buttons in the toolbar.
        * @param {String} ev The event that was passed in.
        * @param {Object} info Object literal of information about the button that was clicked.
        */
        _buttonClick: function(ev, info) {
            var doEvent = true;
            
            if (ev && ev.type == 'keypress') {
                if (ev.keyCode == 9) {
                    doEvent = false;
                } else if ((ev.keyCode === 13) || (ev.keyCode === 0) || (ev.keyCode === 32)) {
                } else {
                    doEvent = false;
                }
            }

            if (doEvent) {
                var fireNextEvent = true,
                    retValue = false;
                    
                info.isSelected = this.isSelected(info.id);

                if (info.value) {
                    retValue = this.fireEvent(info.value + 'Click', { type: info.value + 'Click', target: this.get('element'), button: info });
                    if (retValue === false) {
                        fireNextEvent = false;
                    }
                }
                
                if (info.menucmd && fireNextEvent) {
                    retValue = this.fireEvent(info.menucmd + 'Click', { type: info.menucmd + 'Click', target: this.get('element'), button: info });
                    if (retValue === false) {
                        fireNextEvent = false;
                    }
                }
                if (fireNextEvent) {
                    this.fireEvent('buttonClick', { type: 'buttonClick', target: this.get('element'), button: info });
                }

                if (info.type == 'select') {
                    var button = this.getButtonById(info.id);
                    if (button.buttonType == 'rich') {
                        var txt = info.value;
                        for (var i = 0; i < info.menu.length; i++) {
                            if (info.menu[i].value == info.value) {
                                txt = info.menu[i].text;
                                break;
                            }
                        }
                        button.set('label', '<span class="yui-toolbar-' + info.menucmd + '-' + (info.value).replace(/ /g, '-').toLowerCase() + '">' + txt + '</span>');
                        var _items = button.getMenu().getItems();
                        for (var m = 0; m < _items.length; m++) {
                            if (_items[m].value.toLowerCase() == info.value.toLowerCase()) {
                                _items[m].cfg.setProperty('checked', true);
                            } else {
                                _items[m].cfg.setProperty('checked', false);
                            }
                        }
                    }
                }
                if (ev) {
                    Event.stopEvent(ev);
                }
            }
        },
        /**
        * @private
        * @property _keyNav
        * @description Flag to determine if the arrow nav listeners have been attached
        * @type Boolean
        */
        _keyNav: null,
        /**
        * @private
        * @property _navCounter
        * @description Internal counter for walking the buttons in the toolbar with the arrow keys
        * @type Number
        */
        _navCounter: null,
        /**
        * @private
        * @method _navigateButtons
        * @description Handles the navigation/focus of toolbar buttons with the Arrow Keys
        * @param {Event} ev The Key Event
        */
        _navigateButtons: function(ev) {
            switch (ev.keyCode) {
                case 37:
                case 39:
                    if (ev.keyCode == 37) {
                        this._navCounter--;
                    } else {
                        this._navCounter++;
                    }
                    if (this._navCounter > (this._buttonList.length - 1)) {
                        this._navCounter = 0;
                    }
                    if (this._navCounter < 0) {
                        this._navCounter = (this._buttonList.length - 1);
                    }
                    if (this._buttonList[this._navCounter]) {
                        var el = this._buttonList[this._navCounter].get('element');
                        if (this.browser.ie) {
                            el = this._buttonList[this._navCounter].get('element').getElementsByTagName('a')[0];
                        }
                        if (this._buttonList[this._navCounter].get('disabled')) {
                            this._navigateButtons(ev);
                        } else {
                            el.focus();
                        }
                    }
                    break;
            }
        },
        /**
        * @private
        * @method _handleFocus
        * @description Sets up the listeners for the arrow key navigation
        */
        _handleFocus: function() {
            if (!this._keyNav) {
                var ev = 'keypress';
                if (this.browser.ie) {
                    ev = 'keydown';
                }
                Event.on(this.get('element'), ev, this._navigateButtons, this, true);
                this._keyNav = true;
                this._navCounter = -1;
            }
        },
        /**
        * @method getButtonById
        * @description Gets a button instance from the toolbar by is Dom id.
        * @param {String} id The Dom id to query for.
        * @return {<a href="YAHOO.widget.ToolbarButton.html">YAHOO.widget.ToolbarButton</a>}
        */
        getButtonById: function(id) {
            var len = this._buttonList.length;
            for (var i = 0; i < len; i++) {
                if (this._buttonList[i] && this._buttonList[i].get('id') == id) {
                    return this._buttonList[i];
                }
            }
            return false;
        },
        /**
        * @method getButtonByValue
        * @description Gets a button instance or a menuitem instance from the toolbar by it's value.
        * @param {String} value The button value to query for.
        * @return {<a href="YAHOO.widget.ToolbarButton.html">YAHOO.widget.ToolbarButton</a> or <a href="YAHOO.widget.MenuItem.html">YAHOO.widget.MenuItem</a>}
        */
        getButtonByValue: function(value) {
            var _buttons = this.get('buttons');
            var len = _buttons.length;
            for (var i = 0; i < len; i++) {
                if (_buttons[i].group !== undefined) {
                    for (var m = 0; m < _buttons[i].buttons.length; m++) {
                        if ((_buttons[i].buttons[m].value == value) || (_buttons[i].buttons[m].menucmd == value)) {
                            return this.getButtonById(_buttons[i].buttons[m].id);
                        }
                        if (_buttons[i].buttons[m].menu) { //Menu Button, loop through the values
                            for (var s = 0; s < _buttons[i].buttons[m].menu.length; s++) {
                                if (_buttons[i].buttons[m].menu[s].value == value) {
                                    return this.getButtonById(_buttons[i].buttons[m].id);
                                }
                            }
                        }
                    }
                } else {
                    if ((_buttons[i].value == value) || (_buttons[i].menucmd == value)) {
                        return this.getButtonById(_buttons[i].id);
                    }
                    if (_buttons[i].menu) { //Menu Button, loop through the values
                        for (var j = 0; j < _buttons[i].menu.length; j++) {
                            if (_buttons[i].menu[j].value == value) {
                                return this.getButtonById(_buttons[i].id);
                            }
                        }
                    }
                }
            }
            return false;
        },
        /**
        * @method getButtonByIndex
        * @description Gets a button instance from the toolbar by is index in _buttonList.
        * @param {Number} index The index of the button in _buttonList.
        * @return {<a href="YAHOO.widget.ToolbarButton.html">YAHOO.widget.ToolbarButton</a>}
        */
        getButtonByIndex: function(index) {
            if (this._buttonList[index]) {
                return this._buttonList[index];
            } else {
                return false;
            }
        },
        /**
        * @method getButtons
        * @description Returns an array of buttons in the current toolbar
        * @return {Array}
        */
        getButtons: function() {
            return this._buttonList;
        },
        /**
        * @method disableButton
        * @description Disables a button in the toolbar.
        * @param {String/Number} id Disable a button by it's id, index or value.
        * @return {Boolean}
        */
        disableButton: function(id) {
            var button = getButton.call(this, id);
            if (button) {
                button.set('disabled', true);
            } else {
                return false;
            }
        },
        /**
        * @method enableButton
        * @description Enables a button in the toolbar.
        * @param {String/Number} id Enable a button by it's id, index or value.
        * @return {Boolean}
        */
        enableButton: function(id) {
            if (this.get('disabled')) {
                return false;
            }
            var button = getButton.call(this, id);
            if (button) {
                if (button.get('disabled')) {
                    button.set('disabled', false);
                }
            } else {
                return false;
            }
        },
        /**
        * @method isSelected
        * @description Tells if a button is selected or not.
        * @param {String/Number} id A button by it's id, index or value.
        * @return {Boolean}
        */
        isSelected: function(id) {
            var button = getButton.call(this, id);
            if (button) {
                return button._selected;
            }
            return false;
        },
        /**
        * @method selectButton
        * @description Selects a button in the toolbar.
        * @param {String/Number} id Select a button by it's id, index or value.
        * @param {String} value If this is a Menu Button, check this item in the menu
        * @return {Boolean}
        */
        selectButton: function(id, value) {
            var button = getButton.call(this, id);
            if (button) {
                button.addClass('yui-button-selected');
                button.addClass('yui-button-' + button.get('value') + '-selected');
                button._selected = true;
                if (value) {
                    if (button.buttonType == 'rich') {
                        var _items = button.getMenu().getItems();
                        for (var m = 0; m < _items.length; m++) {
                            if (_items[m].value == value) {
                                _items[m].cfg.setProperty('checked', true);
                                button.set('label', '<span class="yui-toolbar-' + button.get('value') + '-' + (value).replace(/ /g, '-').toLowerCase() + '">' + _items[m]._oText.nodeValue + '</span>');
                            } else {
                                _items[m].cfg.setProperty('checked', false);
                            }
                        }
                    }
                }
            } else {
                return false;
            }
        },
        /**
        * @method deselectButton
        * @description Deselects a button in the toolbar.
        * @param {String/Number} id Deselect a button by it's id, index or value.
        * @return {Boolean}
        */
        deselectButton: function(id) {
            var button = getButton.call(this, id);
            if (button) {
                button.removeClass('yui-button-selected');
                button.removeClass('yui-button-' + button.get('value') + '-selected');
                button.removeClass('yui-button-hover');
                button._selected = false;
            } else {
                return false;
            }
        },
        /**
        * @method deselectAllButtons
        * @description Deselects all buttons in the toolbar.
        * @return {Boolean}
        */
        deselectAllButtons: function() {
            var len = this._buttonList.length;
            for (var i = 0; i < len; i++) {
                this.deselectButton(this._buttonList[i]);
            }
        },
        /**
        * @method disableAllButtons
        * @description Disables all buttons in the toolbar.
        * @return {Boolean}
        */
        disableAllButtons: function() {
            if (this.get('disabled')) {
                return false;
            }
            var len = this._buttonList.length;
            for (var i = 0; i < len; i++) {
                this.disableButton(this._buttonList[i]);
            }
        },
        /**
        * @method enableAllButtons
        * @description Enables all buttons in the toolbar.
        * @return {Boolean}
        */
        enableAllButtons: function() {
            if (this.get('disabled')) {
                return false;
            }
            var len = this._buttonList.length;
            for (var i = 0; i < len; i++) {
                this.enableButton(this._buttonList[i]);
            }
        },
        /**
        * @method resetAllButtons
        * @description Resets all buttons to their initial state.
        * @param {Object} _ex Except these buttons
        * @return {Boolean}
        */
        resetAllButtons: function(_ex) {
            if (!Lang.isObject(_ex)) {
                _ex = {};
            }
            if (this.get('disabled')) {
                return false;
            }
            var len = this._buttonList.length;
            for (var i = 0; i < len; i++) {
                var _button = this._buttonList[i];
                if (_button) {
                    var disabled = _button._configs.disabled._initialConfig.value;
                    if (_ex[_button.get('id')]) {
                        this.enableButton(_button);
                        this.selectButton(_button);
                    } else {
                        if (disabled) {
                            this.disableButton(_button);
                        } else {
                            this.enableButton(_button);
                        }
                        this.deselectButton(_button);
                    }
                }
            }
        },
        /**
        * @method destroyButton
        * @description Destroy a button in the toolbar.
        * @param {String/Number} id Destroy a button by it's id or index.
        * @return {Boolean}
        */
        destroyButton: function(id) {
            var button = getButton.call(this, id);
            if (button) {
                var thisID = button.get('id');
                button.destroy();

                var len = this._buttonList.length;
                for (var i = 0; i < len; i++) {
                    if (this._buttonList[i] && this._buttonList[i].get('id') == thisID) {
                        this._buttonList[i] = null;
                    }
                }
            } else {
                return false;
            }
        },
        /**
        * @method destroy
        * @description Destroys the toolbar, all of it's elements and objects.
        * @return {Boolean}
        */
        destroy: function() {
            this.get('element').innerHTML = '';
            this.get('element').className = '';
            //Brutal Object Destroy
            for (var i in this) {
                if (Lang.hasOwnProperty(this, i)) {
                    this[i] = null;
                }
            }
            return true;
        },
        /**
        * @method collapse
        * @description Programatically collapse the toolbar.
        * @param {Boolean} collapse True to collapse, false to expand.
        */
        collapse: function(collapse) {
            var el = Dom.getElementsByClassName('collapse', 'span', this._titlebar);
            if (collapse === false) {
                Dom.removeClass(this.get('cont').parentNode, 'yui-toolbar-container-collapsed');
                if (el[0]) {
                    Dom.removeClass(el[0], 'collapsed');
                }
                this.fireEvent('toolbarExpanded', { type: 'toolbarExpanded', target: this });
            } else {
                if (el[0]) {
                    Dom.addClass(el[0], 'collapsed');
                }
                Dom.addClass(this.get('cont').parentNode, 'yui-toolbar-container-collapsed');
                this.fireEvent('toolbarCollapsed', { type: 'toolbarCollapsed', target: this });
            }
        },
        /**
        * @method toString
        * @description Returns a string representing the toolbar.
        * @return {String}
        */
        toString: function() {
            return 'Toolbar (#' + this.get('element').id + ') with ' + this._buttonList.length + ' buttons.';
        }
    });
/**
* @event buttonClick
* @param {Object} o The object passed to this handler is the button config used to create the button.
* @description Fires when any botton receives a click event. Passes back a single object representing the buttons config object. See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
* @type YAHOO.util.CustomEvent
*/
/**
* @event valueClick
* @param {Object} o The object passed to this handler is the button config used to create the button.
* @description This is a special dynamic event that is created and dispatched based on the value property
* of the button config. See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
* Example:
* <code><pre>
* buttons : [
*   { type: 'button', value: 'test', value: 'testButton' }
* ]</pre>
* </code>
* With the valueClick event you could subscribe to this buttons click event with this:
* tbar.in('testButtonClick', function() { alert('test button clicked'); })
* @type YAHOO.util.CustomEvent
*/
/**
* @event toolbarExpanded
* @description Fires when the toolbar is expanded via the collapse button. See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
* @type YAHOO.util.CustomEvent
*/
/**
* @event toolbarCollapsed
* @description Fires when the toolbar is collapsed via the collapse button. See <a href="YAHOO.util.Element.html#addListener">Element.addListener</a> for more information on listening for this event.
* @type YAHOO.util.CustomEvent
*/
})();
/**
 * @module editor
 * @description <p>The Rich Text Editor is a UI control that replaces a standard HTML textarea; it allows for the rich formatting of text content, including common structural treatments like lists, formatting treatments like bold and italic text, and drag-and-drop inclusion and sizing of images. The Rich Text Editor's toolbar is extensible via a plugin architecture so that advanced implementations can achieve a high degree of customization.</p>
 * @namespace YAHOO.widget
 * @requires yahoo, dom, element, event, toolbar
 * @optional animation, container_core, resize, dragdrop
 */

(function() {
var Dom = YAHOO.util.Dom,
    Event = YAHOO.util.Event,
    Lang = YAHOO.lang,
    Toolbar = YAHOO.widget.Toolbar;

    /**
     * The Rich Text Editor is a UI control that replaces a standard HTML textarea; it allows for the rich formatting of text content, including common structural treatments like lists, formatting treatments like bold and italic text, and drag-and-drop inclusion and sizing of images. The Rich Text Editor's toolbar is extensible via a plugin architecture so that advanced implementations can achieve a high degree of customization.
     * @constructor
     * @class SimpleEditor
     * @extends YAHOO.util.Element
     * @param {String/HTMLElement} el The textarea element to turn into an editor.
     * @param {Object} attrs Object liternal containing configuration parameters.
    */
    
    YAHOO.widget.SimpleEditor = function(el, attrs) {
        
        var o = {};
        if (Lang.isObject(el) && (!el.tagName) && !attrs) {
            Lang.augmentObject(o, el); //Break the config reference
            el = document.createElement('textarea');
            this.DOMReady = true;
            if (o.container) {
                var c = Dom.get(o.container);
                c.appendChild(el);
            } else {
                document.body.appendChild(el);
            }
        } else {
            if (attrs) {
                Lang.augmentObject(o, attrs); //Break the config reference
            }
        }

        var oConfig = {
            element: null,
            attributes: o
        }, id = null;

        if (Lang.isString(el)) {
            id = el;
        } else {
            if (oConfig.attributes.id) {
                id = oConfig.attributes.id;
            } else {
                this.DOMReady = true;
                id = Dom.generateId(el);
            }
        }
        oConfig.element = el;

        var element_cont = document.createElement('DIV');
        oConfig.attributes.element_cont = new YAHOO.util.Element(element_cont, {
            id: id + '_container'
        });
        var div = document.createElement('div');
        Dom.addClass(div, 'first-child');
        oConfig.attributes.element_cont.appendChild(div);
        
        if (!oConfig.attributes.toolbar_cont) {
            oConfig.attributes.toolbar_cont = document.createElement('DIV');
            oConfig.attributes.toolbar_cont.id = id + '_toolbar';
            div.appendChild(oConfig.attributes.toolbar_cont);
        }
        var editorWrapper = document.createElement('DIV');
        div.appendChild(editorWrapper);
        oConfig.attributes.editor_wrapper = editorWrapper;

        YAHOO.widget.SimpleEditor.superclass.constructor.call(this, oConfig.element, oConfig.attributes);
    };


    YAHOO.extend(YAHOO.widget.SimpleEditor, YAHOO.util.Element, {
        /**
        * @private
        * @property _resizeConfig
        * @description The default config for the Resize Utility
        */
        _resizeConfig: {
            handles: ['br'],
            autoRatio: true,
            status: true,
            proxy: true,
            useShim: true,
            setSize: false
        },
        /**
        * @private
        * @method _setupResize
        * @description Creates the Resize instance and binds its events.
        */
        _setupResize: function() {
            if (!YAHOO.util.DD || !YAHOO.util.Resize) { return false; }
            if (this.get('resize')) {
                var config = {};
                Lang.augmentObject(config, this._resizeConfig); //Break the config reference
                this.resize = new YAHOO.util.Resize(this.get('element_cont').get('element'), config);
                this.resize.on('resize', function(args) {
                    var anim = this.get('animate');
                    this.set('animate', false);
                    this.set('width', args.width + 'px');
                    var h = args.height,
                        th = (this.toolbar.get('element').clientHeight + 2),
                        dh = 0;
                    if (this.dompath) {
                        dh = (this.dompath.clientHeight + 1); //It has a 1px top border..
                    }
                    var newH = (h - th - dh);
                    this.set('height', newH + 'px');
                    this.get('element_cont').setStyle('height', '');
                    this.set('animate', anim);
                }, this, true);
            }
        },
        /**
        * @property resize
        * @description A reference to the Resize object
        * @type YAHOO.util.Resize
        */
        resize: null,
        /**
        * @private
        * @method _setupDD
        * @description Sets up the DD instance used from the 'drag' config option.
        */
        _setupDD: function() {
            if (!YAHOO.util.DD) { return false; }
            if (this.get('drag')) {
                var d = this.get('drag'),
                    dd = YAHOO.util.DD;
                if (d === 'proxy') {
                    dd = YAHOO.util.DDProxy;
                }

                this.dd = new dd(this.get('element_cont').get('element'));
                this.toolbar.addClass('draggable'); 
                this.dd.setHandleElId(this.toolbar._titlebar); 
            }
        },
        /**
        * @property dd
        * @description A reference to the DragDrop object.
        * @type YAHOO.util.DD/YAHOO.util.DDProxy
        */
        dd: null,
        /**
        * @private
        * @property _lastCommand
        * @description A cache of the last execCommand (used for Undo/Redo so they don't mark an undo level)
        * @type String
        */
        _lastCommand: null,
        _undoNodeChange: function() {},
        _storeUndo: function() {},
        /**
        * @private
        * @method _checkKey
        * @description Checks a keyMap entry against a key event
        * @param {Object} k The _keyMap object
        * @param {Event} e The Mouse Event
        * @return {Boolean}
        */
        _checkKey: function(k, e) {
            var ret = false;
            if ((e.keyCode === k.key)) {
                if (k.mods && (k.mods.length > 0)) {
                    var val = 0;
                    for (var i = 0; i < k.mods.length; i++) {
                        if (this.browser.mac) {
                            if (k.mods[i] == 'ctrl') {
                                k.mods[i] = 'meta';
                            }
                        }
                        if (e[k.mods[i] + 'Key'] === true) {
                            val++;
                        }
                    }
                    if (val === k.mods.length) {
                        ret = true;
                    }
                } else {
                    ret = true;
                }
            }
            return ret;
        },
        /**
        * @private
        * @property _keyMap
        * @description Named key maps for various actions in the Editor. Example: <code>CLOSE_WINDOW: { key: 87, mods: ['shift', 'ctrl'] }</code>. 
        * This entry shows that when key 87 (W) is found with the modifiers of shift and control, the window will close. You can customize this object to tweak keyboard shortcuts.
        * @type {Object/Mixed}
        */
        _keyMap: {
            SELECT_ALL: {
                key: 65, //A key
                mods: ['ctrl']
            },
            CLOSE_WINDOW: {
                key: 87, //W key
                mods: ['shift', 'ctrl']
            },
            FOCUS_TOOLBAR: {
                key: 27,
                mods: ['shift']
            },
            FOCUS_AFTER: {
                key: 27
            },
            FONT_SIZE_UP: {
                key: 38,
                mods: ['shift', 'ctrl']
            },
            FONT_SIZE_DOWN: {
                key: 40,
                mods: ['shift', 'ctrl']
            },
            CREATE_LINK: {
                key: 76,
                mods: ['shift', 'ctrl']
            },
            BOLD: {
                key: 66,
                mods: ['shift', 'ctrl']
            },
            ITALIC: {
                key: 73,
                mods: ['shift', 'ctrl']
            },
            UNDERLINE: {
                key: 85,
                mods: ['shift', 'ctrl']
            },
            UNDO: {
                key: 90,
                mods: ['ctrl']
            },
            REDO: {
                key: 90,
                mods: ['shift', 'ctrl']
            },
            JUSTIFY_LEFT: {
                key: 219,
                mods: ['shift', 'ctrl']
            },
            JUSTIFY_CENTER: {
                key: 220,
                mods: ['shift', 'ctrl']
            },
            JUSTIFY_RIGHT: {
                key: 221,
                mods: ['shift', 'ctrl']
            }
        },
        /**
        * @private
        * @method _cleanClassName
        * @description Makes a useable classname from dynamic data, by dropping it to lowercase and replacing spaces with -'s.
        * @param {String} str The classname to clean up
        * @return {String}
        */
        _cleanClassName: function(str) {
            return str.replace(/ /g, '-').toLowerCase();
        },
        /**
        * @property _textarea
        * @description Flag to determine if we are using a textarea or an HTML Node.
        * @type Boolean
        */
        _textarea: null,
        /**
        * @property _docType
        * @description The DOCTYPE to use in the editable container.
        * @type String
        */
        _docType: '<!DOCTYPE HTML PUBLIC "-/'+'/W3C/'+'/DTD HTML 4.01/'+'/EN" "http:/'+'/www.w3.org/TR/html4/strict.dtd">',
        /**
        * @property editorDirty
        * @description This flag will be set when certain things in the Editor happen. It is to be used by the developer to check to see if content has changed.
        * @type Boolean
        */
        editorDirty: null,
        /**
        * @property _defaultCSS
        * @description The default CSS used in the config for 'css'. This way you can add to the config like this: { css: YAHOO.widget.SimpleEditor.prototype._defaultCSS + 'ADD MYY CSS HERE' }
        * @type String
        */
        _defaultCSS: 'html { height: 95%; } body { padding: 7px; background-color: #fff; font: 13px/1.22 arial,helvetica,clean,sans-serif;*font-size:small;*font:x-small; } a, a:visited, a:hover { color: blue !important; text-decoration: underline !important; cursor: text !important; } .warning-localfile { border-bottom: 1px dashed red !important; } .yui-busy { cursor: wait !important; } img.selected { border: 2px dotted #808080; } img { cursor: pointer !important; border: none; } body.ptags.webkit div.yui-wk-p { margin: 11px 0; } body.ptags.webkit div.yui-wk-div { margin: 0; }',
        /**
        * @property _defaultToolbar
        * @private
        * @description Default toolbar config.
        * @type Object
        */
        _defaultToolbar: null,
        /**
        * @property _lastButton
        * @private
        * @description The last button pressed, so we don't disable it.
        * @type Object
        */
        _lastButton: null,
        /**
        * @property _baseHREF
        * @private
        * @description The base location of the editable page (this page) so that relative paths for image work.
        * @type String
        */
        _baseHREF: function() {
            var href = document.location.href;
            if (href.indexOf('?') !== -1) { //Remove the query string
                href = href.substring(0, href.indexOf('?'));
            }
            href = href.substring(0, href.lastIndexOf('/')) + '/';
            return href;
        }(),
        /**
        * @property _lastImage
        * @private
        * @description Safari reference for the last image selected (for styling as selected).
        * @type HTMLElement
        */
        _lastImage: null,
        /**
        * @property _blankImageLoaded
        * @private
        * @description Don't load the blank image more than once..
        * @type Boolean
        */
        _blankImageLoaded: null,
        /**
        * @property _fixNodesTimer
        * @private
        * @description Holder for the fixNodes timer
        * @type Date
        */
        _fixNodesTimer: null,
        /**
        * @property _nodeChangeTimer
        * @private
        * @description Holds a reference to the nodeChange setTimeout call
        * @type Number
        */
        _nodeChangeTimer: null,
        /**
        * @property _lastNodeChangeEvent
        * @private
        * @description Flag to determine the last event that fired a node change
        * @type Event
        */
        _lastNodeChangeEvent: null,
        /**
        * @property _lastNodeChange
        * @private
        * @description Flag to determine when the last node change was fired
        * @type Date
        */
        _lastNodeChange: 0,
        /**
        * @property _rendered
        * @private
        * @description Flag to determine if editor has been rendered or not
        * @type Boolean
        */
        _rendered: null,
        /**
        * @property DOMReady
        * @private
        * @description Flag to determine if DOM is ready or not
        * @type Boolean
        */
        DOMReady: null,
        /**
        * @property _selection
        * @private
        * @description Holder for caching iframe selections
        * @type Object
        */
        _selection: null,
        /**
        * @property _mask
        * @private
        * @description DOM Element holder for the editor Mask when disabled
        * @type Object
        */
        _mask: null,
        /**
        * @property _showingHiddenElements
        * @private
        * @description Status of the hidden elements button
        * @type Boolean
        */
        _showingHiddenElements: null,
        /**
        * @property currentWindow
        * @description A reference to the currently open EditorWindow
        * @type Object
        */
        currentWindow: null,
        /**
        * @property currentEvent
        * @description A reference to the current editor event
        * @type Event
        */
        currentEvent: null,
        /**
        * @property operaEvent
        * @private
        * @description setTimeout holder for Opera and Image DoubleClick event..
        * @type Object
        */
        operaEvent: null,
        /**
        * @property currentFont
        * @description A reference to the last font selected from the Toolbar
        * @type HTMLElement
        */
        currentFont: null,
        /**
        * @property currentElement
        * @description A reference to the current working element in the editor
        * @type Array
        */
        currentElement: null,
        /**
        * @property dompath
        * @description A reference to the dompath container for writing the current working dom path to.
        * @type HTMLElement
        */
        dompath: null,
        /**
        * @property beforeElement
        * @description A reference to the H2 placed before the editor for Accessibilty.
        * @type HTMLElement
        */
        beforeElement: null,
        /**
        * @property afterElement
        * @description A reference to the H2 placed after the editor for Accessibilty.
        * @type HTMLElement
        */
        afterElement: null,
        /**
        * @property invalidHTML
        * @description Contains a list of HTML elements that are invalid inside the editor. They will be removed when they are found. If you set the value of a key to "{ keepContents: true }", then the element will be replaced with a yui-non span to be filtered out when cleanHTML is called. The only tag that is ignored here is the span tag as it will force the Editor into a loop and freeze the browser. However.. all of these tags will be removed in the cleanHTML routine.
        * @type Object
        */
        invalidHTML: {
            form: true,
            input: true,
            button: true,
            select: true,
            link: true,
            html: true,
            body: true,
            iframe: true,
            script: true,
            style: true,
            textarea: true
        },
        /**
        * @property toolbar
        * @description Local property containing the <a href="YAHOO.widget.Toolbar.html">YAHOO.widget.Toolbar</a> instance
        * @type <a href="YAHOO.widget.Toolbar.html">YAHOO.widget.Toolbar</a>
        */
        toolbar: null,
        /**
        * @private
        * @property _contentTimer
        * @description setTimeout holder for documentReady check
        */
        _contentTimer: null,
        /**
        * @private
        * @property _contentTimerCounter
        * @description Counter to check the number of times the body is polled for before giving up
        * @type Number
        */
        _contentTimerCounter: 0,
        /**
        * @private
        * @property _disabled
        * @description The Toolbar items that should be disabled if there is no selection present in the editor.
        * @type Array
        */
        _disabled: [ 'createlink', 'fontname', 'fontsize', 'forecolor', 'backcolor' ],
        /**
        * @private
        * @property _alwaysDisabled
        * @description The Toolbar items that should ALWAYS be disabled event if there is a selection present in the editor.
        * @type Object
        */
        _alwaysDisabled: { undo: true, redo: true },
        /**
        * @private
        * @property _alwaysEnabled
        * @description The Toolbar items that should ALWAYS be enabled event if there isn't a selection present in the editor.
        * @type Object
        */
        _alwaysEnabled: { },
        /**
        * @private
        * @property _semantic
        * @description The Toolbar commands that we should attempt to make tags out of instead of using styles.
        * @type Object
        */
        _semantic: { 'bold': true, 'italic' : true, 'underline' : true },
        /**
        * @private
        * @property _tag2cmd
        * @description A tag map of HTML tags to convert to the different types of commands so we can select the proper toolbar button.
        * @type Object
        */
        _tag2cmd: {
            'b': 'bold',
            'strong': 'bold',
            'i': 'italic',
            'em': 'italic',
            'u': 'underline',
            'sup': 'superscript',
            'sub': 'subscript',
            'img': 'insertimage',
            'a' : 'createlink',
            'ul' : 'insertunorderedlist',
            'ol' : 'insertorderedlist'
        },

        /**
        * @private _createIframe
        * @description Creates the DOM and YUI Element for the iFrame editor area.
        * @param {String} id The string ID to prefix the iframe with
        * @return {Object} iFrame object
        */
        _createIframe: function() {
            var ifrmDom = document.createElement('iframe');
            ifrmDom.id = this.get('id') + '_editor';
            var config = {
                border: '0',
                frameBorder: '0',
                marginWidth: '0',
                marginHeight: '0',
                leftMargin: '0',
                topMargin: '0',
                allowTransparency: 'true',
                width: '100%'
            };
            if (this.get('autoHeight')) {
                config.scrolling = 'no';
            }
            for (var i in config) {
                if (Lang.hasOwnProperty(config, i)) {
                    ifrmDom.setAttribute(i, config[i]);
                }
            }
            var isrc = 'javascript:;';
            if (this.browser.ie) {
                //isrc = 'about:blank';
                //TODO - Check this, I have changed it before..
                isrc = 'javascript:false;';
            }
            ifrmDom.setAttribute('src', isrc);
            var ifrm = new YAHOO.util.Element(ifrmDom);
            ifrm.setStyle('visibility', 'hidden');
            return ifrm;
        },
        /**
        * @private _isElement
        * @description Checks to see if an Element reference is a valid one and has a certain tag type
        * @param {HTMLElement} el The element to check
        * @param {String} tag The tag that the element needs to be
        * @return {Boolean}
        */
        _isElement: function(el, tag) {
            if (el && el.tagName && (el.tagName.toLowerCase() == tag)) {
                return true;
            }
            if (el && el.getAttribute && (el.getAttribute('tag') == tag)) {
                return true;
            }
            return false;
        },
        /**
        * @private _hasParent
        * @description Checks to see if an Element reference or one of it's parents is a valid one and has a certain tag type
        * @param {HTMLElement} el The element to check
        * @param {String} tag The tag that the element needs to be
        * @return HTMLElement
        */
        _hasParent: function(el, tag) {
            if (!el || !el.parentNode) {
                return false;
            }
            
            while (el.parentNode) {
                if (this._isElement(el, tag)) {
                    return el;
                }
                if (el.parentNode) {
                    el = el.parentNode;
                } else {
                    return false;
                }
            }
            return false;
        },
        /**
        * @private
        * @method _getDoc
        * @description Get the Document of the IFRAME
        * @return {Object}
        */
        _getDoc: function() {
            var value = false;
            if (this.get) {
                if (this.get('iframe')) {
                    if (this.get('iframe').get) {
                        if (this.get('iframe').get('element')) {
                            try {
                                if (this.get('iframe').get('element').contentWindow) {
                                    if (this.get('iframe').get('element').contentWindow.document) {
                                        value = this.get('iframe').get('element').contentWindow.document;
                                        return value;
                                    }
                                }
                            } catch (e) {}
                        }
                    }
                }
            }
            return false;
        },
        /**
        * @private
        * @method _getWindow
        * @description Get the Window of the IFRAME
        * @return {Object}
        */
        _getWindow: function() {
            return this.get('iframe').get('element').contentWindow;
        },
        /**
        * @method focus
        * @description Attempt to set the focus of the iframes window.
        */
        focus: function() {
            this._getWindow().focus();
        },
        /**
        * @private
        * @depreciated - This should not be used, moved to this.focus();
        * @method _focusWindow
        * @description Attempt to set the focus of the iframes window.
        */
        _focusWindow: function() {
            this.focus();
        },
        /**
        * @private
        * @method _hasSelection
        * @description Determines if there is a selection in the editor document.
        * @return {Boolean}
        */
        _hasSelection: function() {
            var sel = this._getSelection();
            var range = this._getRange();
            var hasSel = false;

            if (!sel || !range) {
                return hasSel;
            }

            //Internet Explorer
            if (this.browser.ie || this.browser.opera) {
                if (range.text) {
                    hasSel = true;
                }
                if (range.html) {
                    hasSel = true;
                }
            } else {
                if (this.browser.webkit) {
                    if (sel+'' !== '') {
                        hasSel = true;
                    }
                } else {
                    if (sel && (sel.toString() !== '') && (sel !== undefined)) {
                        hasSel = true;
                    }
                }
            }
            return hasSel;
        },
        /**
        * @private
        * @method _getSelection
        * @description Handles the different selection objects across the A-Grade list.
        * @return {Object} Selection Object
        */
        _getSelection: function() {
            var _sel = null;
            if (this._getDoc() && this._getWindow()) {
                if (this._getDoc().selection) {
                    _sel = this._getDoc().selection;
                } else {
                    _sel = this._getWindow().getSelection();
                }
                //Handle Safari's lack of Selection Object
                if (this.browser.webkit) {
                    if (_sel.baseNode) {
                            this._selection = {};
                            this._selection.baseNode = _sel.baseNode;
                            this._selection.baseOffset = _sel.baseOffset;
                            this._selection.extentNode = _sel.extentNode;
                            this._selection.extentOffset = _sel.extentOffset;
                    } else if (this._selection !== null) {
                        _sel = this._getWindow().getSelection();
                        _sel.setBaseAndExtent(
                            this._selection.baseNode,
                            this._selection.baseOffset,
                            this._selection.extentNode,
                            this._selection.extentOffset);
                        this._selection = null;
                    }
                }
            }
            return _sel;
        },
        /**
        * @private
        * @method _selectNode
        * @description Places the highlight around a given node
        * @param {HTMLElement} node The node to select
        */
        _selectNode: function(node, collapse) {
            if (!node) {
                return false;
            }
            var sel = this._getSelection(),
                range = null;

            if (this.browser.ie) {
                try { //IE freaks out here sometimes..
                    range = this._getDoc().body.createTextRange();
                    range.moveToElementText(node);
                    range.select();
                } catch (e) {
                }
            } else if (this.browser.webkit) {
                if (collapse) {
				    sel.setBaseAndExtent(node, 1, node, node.innerText.length);
                } else {
				    sel.setBaseAndExtent(node, 0, node, node.innerText.length);
                }
            } else if (this.browser.opera) {
                sel = this._getWindow().getSelection();
                range = this._getDoc().createRange();
                range.selectNode(node);
                sel.removeAllRanges();
                sel.addRange(range);
            } else {
                range = this._getDoc().createRange();
                range.selectNodeContents(node);
                sel.removeAllRanges();
                sel.addRange(range);
            }
            //TODO - Check Performance
            this.nodeChange();
        },
        /**
        * @private
        * @method _getRange
        * @description Handles the different range objects across the A-Grade list.
        * @return {Object} Range Object
        */
        _getRange: function() {
            var sel = this._getSelection();

            if (sel === null) {
                return null;
            }

            if (this.browser.webkit && !sel.getRangeAt) {
                var _range = this._getDoc().createRange();
                try {
                    _range.setStart(sel.anchorNode, sel.anchorOffset);
                    _range.setEnd(sel.focusNode, sel.focusOffset);
                } catch (e) {
                    _range = this._getWindow().getSelection()+'';
              