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A=C.nextSibling;if(C.nodeType==3&&!/\S/.test(C.nodeValue)){B.removeChild(C)}C=A}return B},empty:function(A){return $(A).innerHTML.match(/^\s*$/)},descendantOf:function(B,A){B=$(B),A=$(A);while(B=B.parentNode){if(B==A){return true}}return false},scrollTo:function(A){A=$(A);var B=Position.cumulativeOffset(A);window.scrollTo(B[0],B[1]);return A},getStyle:function(B,C){B=$(B);if(["float","cssFloat"].include(C)){C=(typeof B.style.styleFloat!="undefined"?"styleFloat":"cssFloat")}C=C.camelize();var D=B.style[C];if(!D){if(document.defaultView&&document.defaultView.getComputedStyle){var A=document.defaultView.getComputedStyle(B,null);D=A?A[C]:null}else{if(B.currentStyle){D=B.currentStyle[C]}}}if((D=="auto")&&["width","height"].include(C)&&(B.getStyle("display")!="none")){D=B["offset"+C.capitalize()]+"px"}if(window.opera&&["left","top","right","bottom"].include(C)){if(Element.getStyle(B,"position")=="static"){D="auto"}}if(C=="opacity"){if(D){return parseFloat(D)}if(D=(B.getStyle("filter")||"").match(/alpha\(opacity=(.*)\)/)){if(D[1]){return parseFloat(D[1])/100}}return 1}return D=="auto"?null:D},setStyle:function(B,C){B=$(B);for(var A in C){var D=C[A];if(A=="opacity"){if(D==1){D=(/Gecko/.test(navigator.userAgent)&&!/Konqueror|Safari|KHTML/.test(navigator.userAgent))?0.999999:1;if(/MSIE/.test(navigator.userAgent)&&!window.opera){B.style.filter=B.getStyle("filter").replace(/alpha\([^\)]*\)/gi,"")}}else{if(D==""){if(/MSIE/.test(navigator.userAgent)&&!window.opera){B.style.filter=B.getStyle("filter").replace(/alpha\([^\)]*\)/gi,"")}}else{if(D<0.00001){D=0}if(/MSIE/.test(navigator.userAgent)&&!window.opera){B.style.filter=B.getStyle("filter").replace(/alpha\([^\)]*\)/gi,"")+"alpha(opacity="+D*100+")"}}}}else{if(["float","cssFloat"].include(A)){A=(typeof B.style.styleFloat!="undefined")?"styleFloat":"cssFloat"}}B.style[A.camelize()]=D}return B},getDimensions:function(C){C=$(C);var G=$(C).getStyle("display");if(G!="none"&&G!=null){return{width:C.offsetWidth,height:C.offsetHeight}}var B=C.style;var F=B.visibility;var D=B.position;var A=B.display;B.visibility="hidden";B.position="absolute";B.display="block";var H=C.clientWidth;var E=C.clientHeight;B.display=A;B.position=D;B.visibility=F;return{width:H,height:E}},makePositioned:function(A){A=$(A);var B=Element.getStyle(A,"position");if(B=="static"||!B){A._madePositioned=true;A.style.position="relative";if(window.opera){A.style.top=0;A.style.left=0}}return A},undoPositioned:function(A){A=$(A);if(A._madePositioned){A._madePositioned=undefined;A.style.position=A.style.top=A.style.left=A.style.bottom=A.style.right=""}return A},makeClipping:function(A){A=$(A);if(A._overflow){return A}A._overflow=A.style.overflow||"auto";if((Element.getStyle(A,"overflow")||"visible")!="hidden"){A.style.overflow="hidden"}return A},undoClipping:function(A){A=$(A);if(!A._overflow){return 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B.specified?B.nodeValue:null}};Object.extend(Element._attributeTranslations.values,{href:Element._attributeTranslations.values._getAttr,src:Element._attributeTranslations.values._getAttr,disabled:Element._attributeTranslations.values._flag,checked:Element._attributeTranslations.values._flag,readonly:Element._attributeTranslations.values._flag,multiple:Element._attributeTranslations.values._flag});Element.Methods.Simulated={hasAttribute:function(B,C){var A=Element._attributeTranslations;C=A.names[C]||C;return $(B).getAttributeNode(C).specified}};if(document.all&&!window.opera){Element.Methods.update=function(C,B){C=$(C);B=typeof B=="undefined"?"":B.toString();var A=C.tagName.toUpperCase();if(["THEAD","TBODY","TR","TD"].include(A)){var D=document.createElement("div");switch(A){case"THEAD":case"TBODY":D.innerHTML="<table><tbody>"+B.stripScripts()+"</tbody></table>";depth=2;break;case"TR":D.innerHTML="<table><tbody><tr>"+B.stripScripts()+"</tr></tbody></table>";depth=3;break;case"TD":D.innerHTML="<table><tbody><tr><td>"+B.stripScripts()+"</td></tr></tbody></table>";depth=4}$A(C.childNodes).each(function(E){C.removeChild(E)});depth.times(function(){D=D.firstChild});$A(D.childNodes).each(function(E){C.appendChild(E)})}else{C.innerHTML=B.stripScripts()}setTimeout(function(){B.evalScripts()},10);return C}}Object.extend(Element,Element.Methods);var _nativeExtensions=false;if(/Konqueror|Safari|KHTML/.test(navigator.userAgent)){["","Form","Input","TextArea","Select"].each(function(B){var C="HTML"+B+"Element";if(window[C]){return }var A=window[C]={};A.prototype=document.createElement(B?B.toLowerCase():"div").__proto__})}Element.addMethods=function(A){Object.extend(Element.Methods,A||{});function B(F,D,C){C=C||false;var E=Element.extend.cache;for(var H in F){var G=F[H];if(!C||!(H in D)){D[H]=E.findOrStore(G)}}}if(typeof HTMLElement!="undefined"){B(Element.Methods,HTMLElement.prototype);B(Element.Methods.Simulated,HTMLElement.prototype,true);B(Form.Methods,HTMLFormElement.prototype);[HTMLInputElement,HTMLTextAreaElement,HTMLSelectElement].each(function(C){B(Form.Element.Methods,C.prototype)});_nativeExtensions=true}};var Toggle=new Object();Toggle.display=Element.toggle;Abstract.Insertion=function(A){this.adjacency=A};Abstract.Insertion.prototype={initialize:function(B,C){this.element=$(B);this.content=C.stripScripts();if(this.adjacency&&this.element.insertAdjacentHTML){try{this.element.insertAdjacentHTML(this.adjacency,this.content)}catch(D){var A=this.element.tagName.toUpperCase();if(["TBODY","TR"].include(A)){this.insertContent(this.contentFromAnonymousTable())}else{throw D}}}else{this.range=this.element.ownerDocument.createRange();if(this.initializeRange){this.initializeRange()}this.insertContent([this.range.createContextualFragment(this.content)])}setTimeout(function(){C.evalScripts()},10)},contentFromAnonymousTable:function(){var A=document.createElement("div");A.innerHTML="<table><tbody>"+this.content+"</tbody></table>";return $A(A.childNodes[0].childNodes[0].childNodes)}};var Insertion=new Object();Insertion.Before=Class.create();Insertion.Before.prototype=Object.extend(new Abstract.Insertion("beforeBegin"),{initializeRange:function(){this.range.setStartBefore(this.element)},insertContent:function(A){A.each((function(B){this.element.parentNode.insertBefore(B,this.element)}).bind(this))}});Insertion.Top=Class.create();Insertion.Top.prototype=Object.extend(new Abstract.Insertion("afterBegin"),{initializeRange:function(){this.range.selectNodeContents(this.element);this.range.collapse(true)},insertContent:function(A){A.reverse(false).each((function(B){this.element.insertBefore(B,this.element.firstChild)}).bind(this))}});Insertion.Bottom=Class.create();Insertion.Bottom.prototype=Object.extend(new Abstract.Insertion("beforeEnd"),{initializeRange:function(){this.range.selectNodeContents(this.element);this.range.collapse(this.element)},insertContent:function(A){A.each((function(B){this.element.appendChild(B)}).bind(this))}});Insertion.After=Class.create();Insertion.After.prototype=Object.extend(new Abstract.Insertion("afterEnd"),{initializeRange:function(){this.range.setStartAfter(this.element)},insertContent:function(A){A.each((function(B){this.element.parentNode.insertBefore(B,this.element.nextSibling)}).bind(this))}});Element.ClassNames=Class.create();Element.ClassNames.prototype={initialize:function(A){this.element=$(A)},_each:function(A){this.element.className.split(/\s+/).select(function(B){return B.length>0})._each(A)},set:function(A){this.element.className=A},add:function(A){if(this.include(A)){return }this.set($A(this).concat(A).join(" "))},remove:function(A){if(!this.include(A)){return }this.set($A(this).without(A).join(" "))},toString:function(){return $A(this).join(" ")}};Object.extend(Element.ClassNames.prototype,Enumerable);var Selector=Class.create();Selector.prototype={initialize:function(A){this.params={classNames:[]};this.expression=A.toString().strip();this.parseExpression();this.compileMatcher()},parseExpression:function(){function G(H){throw"Parse error in selector: "+H}if(this.expression==""){G("empty expression")}var F=this.params,E=this.expression,B,A,D,C;while(B=E.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)){F.attributes=F.attributes||[];F.attributes.push({name:B[2],operator:B[3],value:B[4]||B[5]||""});E=B[1]}if(E=="*"){return this.params.wildcard=true}while(B=E.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)){A=B[1],D=B[2],C=B[3];switch(A){case"#":F.id=D;break;case".":F.classNames.push(D);break;case"":case undefined:F.tagName=D.toUpperCase();break;default:G(E.inspect())}E=C}if(E.length>0){G(E.inspect())}},buildMatchExpression:function(){var E=this.params,D=[],C;if(E.wildcard){D.push("true")}if(C=E.id){D.push('element.readAttribute("id") == '+C.inspect())}if(C=E.tagName){D.push("element.tagName.toUpperCase() == "+C.inspect())}if((C=E.classNames).length>0){for(var A=0,B=C.length;A<B;A++){D.push("element.hasClassName("+C[A].inspect()+")")}}if(C=E.attributes){C.each(function(G){var H="element.readAttribute("+G.name.inspect()+")";var F=function(I){return H+" && "+H+".split("+I.inspect()+")"};switch(G.operator){case"=":D.push(H+" == "+G.value.inspect());break;case"~=":D.push(F(" ")+".include("+G.value.inspect()+")");break;case"|=":D.push(F("-")+".first().toUpperCase() == "+G.value.toUpperCase().inspect());break;case"!=":D.push(H+" != "+G.value.inspect());break;case"":case undefined:D.push("element.hasAttribute("+G.name.inspect()+")");break;default:throw"Unknown operator "+G.operator+" in selector"}})}return D.join(" && ")},compileMatcher:function(){this.match=new Function("element","if (!element.tagName) return false;       element = $(element);       return "+this.buildMatchExpression())},findElements:function(D){var C;if(C=$(this.params.id)){if(this.match(C)){if(!D||Element.childOf(C,D)){return[C]}}}D=(D||document).getElementsByTagName(this.params.tagName||"*");var B=[];for(var A=0,E=D.length;A<E;A++){if(this.match(C=D[A])){B.push(Element.extend(C))}}return B},toString:function(){return this.expression}};Object.extend(Selector,{matchElements:function(B,C){var A=new Selector(C);return B.select(A.match.bind(A)).map(Element.extend)},findElement:function(B,C,A){if(typeof C=="number"){A=C,C=false}return Selector.matchElements(B,C||"*")[A||0]},findChildElements:function(A,B){return B.map(function(C){return C.match(/[^\s"]+(?:"[^"]*"[^\s"]+)*/g).inject([null],function(E,F){var D=new Selector(F);return E.inject([],function(H,G){return H.concat(D.findElements(G||A))})})}).flatten()}});function $$(){return Selector.findChildElements(document,$A(arguments))}var Form={reset:function(A){$(A).reset();return A},serializeElements:function(C,A){var B=C.inject({},function(D,F){if(!F.disabled&&F.name){var E=F.name,G=$(F).getValue();if(G!=undefined){if(D[E]){if(D[E].constructor!=Array){D[E]=[D[E]]}D[E].push(G)}else{D[E]=G}}}return D});return A?B:Hash.toQueryString(B)}};Form.Methods={serialize:function(B,A){return Form.serializeElements(Form.getElements(B),A)},getElements:function(A){return $A($(A).getElementsByTagName("*")).inject([],function(B,C){if(Form.Element.Serializers[C.tagName.toLowerCase()]){B.push(Element.extend(C))}return B})},getInputs:function(G,C,D){G=$(G);var A=G.getElementsByTagName("input");if(!C&&!D){return $A(A).map(Element.extend)}for(var E=0,H=[],F=A.length;E<F;E++){var B=A[E];if((C&&B.type!=C)||(D&&B.name!=D)){continue}H.push(Element.extend(B))}return H},disable:function(A){A=$(A);A.getElements().each(function(B){B.blur();B.disabled="true"});return A},enable:function(A){A=$(A);A.getElements().each(function(B){B.disabled=""});return A},findFirstElement:function(A){return $(A).getElements().find(function(B){return B.type!="hidden"&&!B.disabled&&["input","select","textarea"].include(B.tagName.toLowerCase())})},focusFirstElement:function(A){A=$(A);A.findFirstElement().activate();return A}};Object.extend(Form,Form.Methods);Form.Element={focus:function(A){$(A).focus();return A},select:function(A){$(A).select();return A}};Form.Element.Methods={serialize:function(A){A=$(A);if(!A.disabled&&A.name){var B=A.getValue();if(B!=undefined){var C={};C[A.name]=B;return Hash.toQueryString(C)}}return""},getValue:function(A){A=$(A);var B=A.tagName.toLowerCase();return Form.Element.Serializers[B](A)},clear:function(A){$(A).value="";return A},present:function(A){return $(A).value!=""},activate:function(A){A=$(A);A.focus();if(A.select&&(A.tagName.toLowerCase()!="input"||!["button","reset","submit"].include(A.type))){A.select()}return A},disable:function(A){A=$(A);A.disabled=true;return A},enable:function(A){A=$(A);A.blur();A.disabled=false;return A}};Object.extend(Form.Element,Form.Element.Methods);var Field=Form.Element;var $F=Form.Element.getValue;Form.Element.Serializers={input:function(A){switch(A.type.toLowerCase()){case"checkbox":case"radio":return Form.Element.Serializers.inputSelector(A);default:return Form.Element.Serializers.textarea(A)}},inputSelector:function(A){return A.checked?A.value:null},textarea:function(A){return A.value},select:function(A){return this[A.type=="select-one"?"selectOne":"selectMany"](A)},selectOne:function(B){var A=B.selectedIndex;return A>=0?this.optionValue(B.options[A]):null},selectMany:function(D){var A,E=D.length;if(!E){return null}for(var C=0,A=[];C<E;C++){var B=D.options[C];if(B.selected){A.push(this.optionValue(B))}}return A},optionValue:function(A){return Element.extend(A).hasAttribute("value")?A.value:A.text}};Abstract.TimedObserver=function(){};Abstract.TimedObserver.prototype={initialize:function(A,B,C){this.frequency=B;this.element=$(A);this.callback=C;this.lastValue=this.getValue();this.registerCallback()},registerCallback:function(){setInterval(this.onTimerEvent.bind(this),this.frequency*1000)},onTimerEvent:function(){var A=this.getValue();var B=("string"==typeof this.lastValue&&"string"==typeof A?this.lastValue!=A:String(this.lastValue)!=String(A));if(B){this.callback(this.element,A);this.lastValue=A}}};Form.Element.Observer=Class.create();Form.Element.Observer.prototype=Object.extend(new Abstract.TimedObserver(),{getValue:function(){return Form.Element.getValue(this.element)}});Form.Observer=Class.create();Form.Observer.prototype=Object.extend(new Abstract.TimedObserver(),{getValue:function(){return Form.serialize(this.element)}});Abstract.EventObserver=function(){};Abstract.EventObserver.prototype={initialize:function(A,B){this.element=$(A);this.callback=B;this.lastValue=this.getValue();if(this.element.tagName.toLowerCase()=="form"){this.registerFormCallbacks()}else{this.registerCallback(this.element)}},onElementEvent:function(){var A=this.getValue();if(this.lastValue!=A){this.callback(this.element,A);this.lastValue=A}},registerFormCallbacks:function(){Form.getElements(this.element).each(this.registerCallback.bind(this))},registerCallback:function(A){if(A.type){switch(A.type.toLowerCase()){case"checkbox":case"radio":Event.observe(A,"click",this.onElementEvent.bind(this));break;default:Event.observe(A,"change",this.onElementEvent.bind(this));break}}}};Form.Element.EventObserver=Class.create();Form.Element.EventObserver.prototype=Object.extend(new Abstract.EventObserver(),{getValue:function(){return Form.Element.getValue(this.element)}});Form.EventObserver=Class.create();Form.EventObserver.prototype=Object.extend(new Abstract.EventObserver(),{getValue:function(){return Form.serialize(this.element)}});if(!window.Event){var Event=new Object()}Object.extend(Event,{KEY_BACKSPACE:8,KEY_TAB:9,KEY_RETURN:13,KEY_ESC:27,KEY_LEFT:37,KEY_UP:38,KEY_RIGHT:39,KEY_DOWN:40,KEY_DELETE:46,KEY_HOME:36,KEY_END:35,KEY_PAGEUP:33,KEY_PAGEDOWN:34,element:function(A){return A.target||A.srcElement},isLeftClick:function(A){return(((A.which)&&(A.which==1))||((A.button)&&(A.button==1)))},pointerX:function(A){return A.pageX||(A.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft))},pointerY:function(A){return A.pageY||(A.clientY+(document.documentElement.scrollTop||document.body.scrollTop))},stop:function(A){if(A.preventDefault){A.preventDefault();A.stopPropagation()}else{A.returnValue=false;A.cancelBubble=true}},findElement:function(C,B){var A=Event.element(C);while(A.parentNode&&(!A.tagName||(A.tagName.toUpperCase()!=B.toUpperCase()))){A=A.parentNode}return A},observers:false,_observeAndCache:function(D,C,B,A){if(!this.observers){this.observers=[]}if(D.addEventListener){this.observers.push([D,C,B,A]);D.addEventListener(C,B,A)}else{if(D.attachEvent){this.observers.push([D,C,B,A]);D.attachEvent("on"+C,B)}}},unloadCache:function(){if(!Event.observers){return }for(var A=0,B=Event.observers.length;A<B;A++){Event.stopObserving.apply(this,Event.observers[A]);Event.observers[A][0]=null}Event.observers=false},observe:function(D,C,B,A){D=$(D);A=A||false;if(C=="keypress"&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||D.attachEvent)){C="keydown"}Event._observeAndCache(D,C,B,A)},stopObserving:function(D,C,B,A){D=$(D);A=A||false;if(C=="keypress"&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||D.detachEvent)){C="keydown"}if(D.removeEventListener){D.removeEventListener(C,B,A)}else{if(D.detachEvent){try{D.detachEvent("on"+C,B)}catch(E){}}}}});if(navigator.appVersion.match(/\bMSIE\b/)){Event.observe(window,"unload",Event.unloadCache,false)}var Position={includeScrollOffsets:false,prepare:function(){this.deltaX=window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft||0;this.deltaY=window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0},realOffset:function(B){var A=0,C=0;do{A+=B.scrollTop||0;C+=B.scrollLeft||0;B=B.parentNode}while(B);return[C,A]},cumulativeOffset:function(B){var A=0,C=0;do{A+=B.offsetTop||0;C+=B.offsetLeft||0;B=B.offsetParent}while(B);return[C,A]},positionedOffset:function(B){var A=0,D=0;do{A+=B.offsetTop||0;D+=B.offsetLeft||0;B=B.offsetParent;if(B){if(B.tagName=="BODY"){break}var C=Element.getStyle(B,"position");if(C=="relative"||C=="absolute"){break}}}while(B);return[D,A]},offsetParent:function(A){if(A.offsetParent){return A.offsetParent}if(A==document.body){return A}while((A=A.parentNode)&&A!=document.body){if(Element.getStyle(A,"position")!="static"){return A}}return document.body},within:function(B,A,C){if(this.includeScrollOffsets){return this.withinIncludingScrolloffsets(B,A,C)}this.xcomp=A;this.ycomp=C;this.offset=this.cumulativeOffset(B);return(C>=this.offset[1]&&C<this.offset[1]+B.offsetHeight&&A>=this.offset[0]&&A<this.offset[0]+B.offsetWidth)},withinIncludingScrolloffsets:function(B,A,D){var C=this.realOffset(B);this.xcomp=A+C[0]-this.deltaX;this.ycomp=D+C[1]-this.deltaY;this.offset=this.cumulativeOffset(B);return(this.ycomp>=this.offset[1]&&this.ycomp<this.offset[1]+B.offsetHeight&&this.xcomp>=this.offset[0]&&this.xcomp<this.offset[0]+B.offsetWidth)},overlap:function(B,A){if(!B){return 0}if(B=="vertical"){return((this.offset[1]+A.offsetHeight)-this.ycomp)/A.offsetHeight}if(B=="horizontal"){return((this.offset[0]+A.offsetWidth)-this.xcomp)/A.offsetWidth}},page:function(D){var A=0,C=0;var B=D;do{A+=B.offsetTop||0;C+=B.offsetLeft||0;if(B.offsetParent==document.body){if(Element.getStyle(B,"position")=="absolute"){break}}}while(B=B.offsetParent);B=D;do{if(!window.opera||B.tagName=="BODY"){A-=B.scrollTop||0;C-=B.scrollLeft||0}}while(B=B.parentNode);return[C,A]},clone:function(C,E){var A=Object.extend({setLeft:true,setTop:true,setWidth:true,setHeight:true,offsetTop:0,offsetLeft:0},arguments[2]||{});C=$(C);var D=Position.page(C);E=$(E);var F=[0,0];var B=null;if(Element.getStyle(E,"position")=="absolute"){B=Position.offsetParent(E);F=Position.page(B)}if(B==document.body){F[0]-=document.body.offsetLeft;F[1]-=document.body.offsetTop}if(A.setLeft){E.style.left=(D[0]-F[0]+A.offsetLeft)+"px"}if(A.setTop){E.style.top=(D[1]-F[1]+A.offsetTop)+"px"}if(A.setWidth){E.style.width=C.offsetWidth+"px"}if(A.setHeight){E.style.height=C.offsetHeight+"px"}},absolutize:function(B){B=$(B);if(B.style.position=="absolute"){return }Position.prepare();var D=Position.positionedOffset(B);var F=D[1];var E=D[0];var C=B.clientWidth;var A=B.clientHeight;B._originalLeft=E-parseFloat(B.style.left||0);B._originalTop=F-parseFloat(B.style.top||0);B._originalWidth=B.style.width;B._originalHeight=B.style.height;B.style.position="absolute";B.style.top=F+"px";B.style.left=E+"px";B.style.width=C+"px";B.style.height=A+"px"},relativize:function(A){A=$(A);if(A.style.position=="relative"){return }Position.prepare();A.style.position="relative";var C=parseFloat(A.style.top||0)-(A._originalTop||0);var B=parseFloat(A.style.left||0)-(A._originalLeft||0);A.style.top=C+"px";A.style.left=B+"px";A.style.height=A._originalHeight;A.style.width=A._originalWidth}};if(/Konqueror|Safari|KHTML/.test(navigator.userAgent)){Position.cumulativeOffset=function(B){var A=0,C=0;do{A+=B.offsetTop||0;C+=B.offsetLeft||0;if(B.offsetParent==document.body){if(Element.getStyle(B,"position")=="absolute"){break}}B=B.offsetParent}while(B);return[C,A]}}Element.addMethods();