var Prototype={Version:"1.4.0",ScriptFragment:"(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)",emptyFunction:function(){},K:function(x){return x}};var Class={create:function(){return function(){this.initialize.apply(this,arguments)}}};var Abstract=new Object();Object.extend=function(destination,source){for(property in source){destination[property]=source[property]}return destination};Object.inspect=function(object){try{if(object==undefined){return"undefined"}if(object==null){return"null"}return object.inspect?object.inspect():object.toString()}catch(e){if(e instanceof RangeError){return"..."}throw e}};Function.prototype.bind=function(){var __method=this,args=$A(arguments),object=args.shift();return function(){return __method.apply(object,args.concat($A(arguments)))}};Function.prototype.bindAsEventListener=function(object){var __method=this;return function(event){return __method.call(object,event||window.event)}};Object.extend(Number.prototype,{toColorPart:function(){var 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$break}});return result},any:function(iterator){var result=true;this.each(function(value,index){if(result=!!(iterator||Prototype.K)(value,index)){throw $break}});return result},collect:function(iterator){var results=[];this.each(function(value,index){results.push(iterator(value,index))});return results},detect:function(iterator){var result;this.each(function(value,index){if(iterator(value,index)){result=value;throw $break}});return result},findAll:function(iterator){var results=[];this.each(function(value,index){if(iterator(value,index)){results.push(value)}});return results},grep:function(pattern,iterator){var results=[];this.each(function(value,index){var stringValue=value.toString();if(stringValue.match(pattern)){results.push((iterator||Prototype.K)(value,index))}});return results},include:function(object){var found=false;this.each(function(value){if(value==object){found=true;throw $break}});return found},inject:function(memo,iterator){this.each(function(value,index){memo=iterator(memo,value,index)});return memo},invoke:function(method){var args=$A(arguments).slice(1);return this.collect(function(value){return value[method].apply(value,args)})},max:function(iterator){var result;this.each(function(value,index){value=(iterator||Prototype.K)(value,index);if(value>=(result||value)){result=value}});return result},min:function(iterator){var result;this.each(function(value,index){value=(iterator||Prototype.K)(value,index);if(value<=(result||value)){result=value}});return result},partition:function(iterator){var trues=[],falses=[];this.each(function(value,index){((iterator||Prototype.K)(value,index)?trues:falses).push(value)});return[trues,falses]},pluck:function(property){var results=[];this.each(function(value,index){results.push(value[property])});return results},reject:function(iterator){var results=[];this.each(function(value,index){if(!iterator(value,index)){results.push(value)}});return results},sortBy:function(iterator){return this.collect(function(value,index){return{value:value,criteria:iterator(value,index)}}).sort(function(left,right){var a=left.criteria,b=right.criteria;return a<b?-1:a>b?1:0}).pluck("value")},toArray:function(){return this.collect(Prototype.K)},zip:function(){var iterator=Prototype.K,args=$A(arguments);if(typeof args.last()=="function"){iterator=args.pop()}var collections=[this].concat(args).map($A);return this.map(function(value,index){iterator(value=collections.pluck(index));return value})},inspect:function(){return"#<Enumerable:"+this.toArray().inspect()+">"}};Object.extend(Enumerable,{map:Enumerable.collect,find:Enumerable.detect,select:Enumerable.findAll,member:Enumerable.include,entries:Enumerable.toArray});var $A=Array.from=function(iterable){if(!iterable){return[]}if(iterable.toArray){return iterable.toArray()}else{var results=[];for(var i=0;i<iterable.length;i++){results.push(iterable[i])}return results}};Object.extend(Array.prototype,Enumerable);Array.prototype._reverse=Array.prototype.reverse;Object.extend(Array.prototype,{_each:function(iterator){for(var i=0;i<this.length;i++){iterator(this[i])}},clear:function(){this.length=0;return this},first:function(){return this[0]},last:function(){return this[this.length-1]},compact:function(){return this.select(function(value){return value!=undefined||value!=null})},flatten:function(){return this.inject([],function(array,value){return array.concat(value.constructor==Array?value.flatten():[value])})},without:function(){var values=$A(arguments);return this.select(function(value){return !values.include(value)})},indexOf:function(object){for(var i=0;i<this.length;i++){if(this[i]==object){return i}}return -1},reverse:function(inline){return(inline!==false?this:this.toArray())._reverse()},shift:function(){var result=this[0];for(var i=0;i<this.length-1;i++){this[i]=this[i+1]}this.length--;return result},inspect:function(){return"["+this.map(Object.inspect).join(", ")+"]"}});var Hash={_each:function(iterator){for(key in this){var value=this[key];if(typeof value=="function"){continue}var pair=[key,value];pair.key=key;pair.value=value;iterator(pair)}},keys:function(){return this.pluck("key")},values:function(){return this.pluck("value")},merge:function(hash){return $H(hash).inject($H(this),function(mergedHash,pair){mergedHash[pair.key]=pair.value;return mergedHash})},toQueryString:function(){return this.map(function(pair){return pair.map(encodeURIComponent).join("=")}).join("&")},inspect:function(){return"#<Hash:{"+this.map(function(pair){return pair.map(Object.inspect).join(": ")}).join(", ")+"}>"}};function $H(object){var hash=Object.extend({},object||{});Object.extend(hash,Enumerable);Object.extend(hash,Hash);return hash}ObjectRange=Class.create();Object.extend(ObjectRange.prototype,Enumerable);Object.extend(ObjectRange.prototype,{initialize:function(start,end,exclusive){this.start=start;this.end=end;this.exclusive=exclusive},_each:function(iterator){var value=this.start;do{iterator(value);value=value.succ()}while(this.include(value))},include:function(value){if(value<this.start){return false}if(this.exclusive){return value<this.end}return value<=this.end}});var $R=function(start,end,exclusive){return new ObjectRange(start,end,exclusive)};var Ajax={getTransport:function(){return Try.these(function(){return new ActiveXObject("Msxml2.XMLHTTP")},function(){return new ActiveXObject("Microsoft.XMLHTTP")},function(){return new XMLHttpRequest()})||false},activeRequestCount:0};Ajax.Responders={responders:[],_each:function(iterator){this.responders._each(iterator)},register:function(responderToAdd){if(!this.include(responderToAdd)){this.responders.push(responderToAdd)}},unregister:function(responderToRemove){this.responders=this.responders.without(responderToRemove)},dispatch:function(callback,request,transport,json){this.each(function(responder){if(responder[callback]&&typeof responder[callback]=="function"){try{responder[callback].apply(responder,[request,transport,json])}catch(e){}}})}};Object.extend(Ajax.Responders,Enumerable);Ajax.Responders.register({onCreate:function(){Ajax.activeRequestCount++},onComplete:function(){Ajax.activeRequestCount--}});Ajax.Base=function(){};Ajax.Base.prototype={setOptions:function(options){this.options={method:"post",asynchronous:true,parameters:""};Object.extend(this.options,options||{})},responseIsSuccess:function(){return this.transport.status==undefined||this.transport.status==0||(this.transport.status>=200&&this.transport.status<300)},responseIsFailure:function(){return !this.responseIsSuccess()}};Ajax.Request=Class.create();Ajax.Request.Events=["Uninitialized","Loading","Loaded","Interactive","Complete"];Ajax.Request.prototype=Object.extend(new Ajax.Base(),{initialize:function(url,options){this.transport=Ajax.getTransport();this.setOptions(options);this.request(url)},request:function(url){var parameters=this.options.parameters||"";if(parameters.length>0){parameters+="&_="}try{this.url=url;if(this.options.method=="get"&&parameters.length>0){this.url+=(this.url.match(/\?/)?"&":"?")+parameters}Ajax.Responders.dispatch("onCreate",this,this.transport);this.transport.open(this.options.method,this.url,this.options.asynchronous);if(this.options.asynchronous){this.transport.onreadystatechange=this.onStateChange.bind(this);setTimeout((function(){this.respondToReadyState(1)}).bind(this),10)}this.setRequestHeaders();var body=this.options.postBody?this.options.postBody:parameters;this.transport.send(this.options.method=="post"?body:null)}catch(e){this.dispatchException(e)}},setRequestHeaders:function(){var requestHeaders=["X-Requested-With","XMLHttpRequest","X-Prototype-Version",Prototype.Version];if(this.options.method=="post"){requestHeaders.push("Content-type","application/x-www-form-urlencoded");if(this.transport.overrideMimeType){requestHeaders.push("Connection","close")}}if(this.options.requestHeaders){requestHeaders.push.apply(requestHeaders,this.options.requestHeaders)}for(var i=0;i<requestHeaders.length;i+=2){this.transport.setRequestHeader(requestHeaders[i],requestHeaders[i+1])}},onStateChange:function(){var readyState=this.transport.readyState;if(readyState!=1){this.respondToReadyState(this.transport.readyState)}},header:function(name){try{return this.transport.getResponseHeader(name)}catch(e){}},evalJSON:function(){try{return eval(this.header("X-JSON"))}catch(e){}},evalResponse:function(){try{return eval(this.transport.responseText)}catch(e){this.dispatchException(e)}},respondToReadyState:function(readyState){var event=Ajax.Request.Events[readyState];var 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onComplete=this.options.onComplete||Prototype.emptyFunction;this.options.onComplete=(function(transport,object){this.updateContent();onComplete(transport,object)}).bind(this);this.request(url)},updateContent:function(){var receiver=this.responseIsSuccess()?this.containers.success:this.containers.failure;var response=this.transport.responseText;if(!this.options.evalScripts){response=response.stripScripts()}if(receiver){if(this.options.insertion){new this.options.insertion(receiver,response)}else{Element.update(receiver,response)}}if(this.responseIsSuccess()){if(this.onComplete){setTimeout(this.onComplete.bind(this),10)}}}});Ajax.PeriodicalUpdater=Class.create();Ajax.PeriodicalUpdater.prototype=Object.extend(new Ajax.Base(),{initialize:function(container,url,options){this.setOptions(options);this.onComplete=this.options.onComplete;this.frequency=(this.options.frequency||2);this.decay=(this.options.decay||1);this.updater={};this.container=container;this.url=url;this.start()},start:function(){this.options.onComplete=this.updateComplete.bind(this);this.onTimerEvent()},stop:function(){this.updater.onComplete=undefined;clearTimeout(this.timer);(this.onComplete||Prototype.emptyFunction).apply(this,arguments)},updateComplete:function(request){if(this.options.decay){this.decay=(request.responseText==this.lastText?this.decay*this.options.decay:1);this.lastText=request.responseText}this.timer=setTimeout(this.onTimerEvent.bind(this),this.decay*this.frequency*1000)},onTimerEvent:function(){this.updater=new Ajax.Updater(this.container,this.url,this.options)}});document.getElementsByClassName=function(className,parentElement){var children=($(parentElement)||document.body).getElementsByTagName("*");return $A(children).inject([],function(elements,child){if(child.className.match(new RegExp("(^|\\s)"+className+"(\\s|$)"))){elements.push(child)}return elements})};if(!window.Element){var Element=new Object()}Object.extend(Element,{visible:function(element){return $(element).style.display!="none"},toggle:function(){for(var i=0;i<arguments.length;i++){var element=$(arguments[i]);Element[Element.visible(element)?"hide":"show"](element)}},hide:function(){for(var i=0;i<arguments.length;i++){var element=$(arguments[i]);element.style.display="none"}},show:function(){for(var i=0;i<arguments.length;i++){var element=$(arguments[i]);element.style.display=""}},remove:function(element){element=$(element);element.parentNode.removeChild(element)},update:function(element,html){$(element).innerHTML=html.stripScripts();setTimeout(function(){html.evalScripts()},10)},getHeight:function(element){element=$(element);return element.offsetHeight},classNames:function(element){return new Element.ClassNames(element)},hasClassName:function(element,className){if(!(element=$(element))){return}return Element.classNames(element).include(className)},addClassName:function(element,className){if(!(element=$(element))){return}return Element.classNames(element).add(className)},removeClassName:function(element,className){if(!(element=$(element))){return}return Element.classNames(element).remove(className)},cleanWhitespace:function(element){element=$(element);for(var i=0;i<element.childNodes.length;i++){var node=element.childNodes[i];if(node.nodeType==3&&!/\S/.test(node.nodeValue)){Element.remove(node)}}},empty:function(element){return $(element).innerHTML.match(/^\s*$/)},scrollTo:function(element){element=$(element);var x=element.x?element.x:element.offsetLeft,y=element.y?element.y:element.offsetTop;window.scrollTo(x,y)},getStyle:function(element,style){element=$(element);var value=element.style[style.camelize()];if(!value){if(document.defaultView&&document.defaultView.getComputedStyle){var css=document.defaultView.getComputedStyle(element,null);value=css?css.getPropertyValue(style):null}else{if(element.currentStyle){value=element.currentStyle[style.camelize()]}}}if(window.opera&&["left","top","right","bottom"].include(style)){if(Element.getStyle(element,"position")=="static"){value="auto"}}return value=="auto"?null:value},setStyle:function(element,style){element=$(element);for(name in style){element.style[name.camelize()]=style[name]}},getDimensions:function(element){element=$(element);if(Element.getStyle(element,"display")!="none"){return{width:element.offsetWidth,height:element.offsetHeight}}var els=element.style;var originalVisibility=els.visibility;var originalPosition=els.position;els.visibility="hidden";els.position="absolute";els.display="";var originalWidth=element.clientWidth;var originalHeight=element.clientHeight;els.display="none";els.position=originalPosition;els.visibility=originalVisibility;return{width:originalWidth,height:originalHeight}},makePositioned:function(element){element=$(element);var pos=Element.getStyle(element,"position");if(pos=="static"||!pos){element._madePositioned=true;element.style.position="relative";if(window.opera){element.style.top=0;element.style.left=0}}},undoPositioned:function(element){element=$(element);if(element._madePositioned){element._madePositioned=undefined;element.style.position=element.style.top=element.style.left=element.style.bottom=element.style.right=""}},makeClipping:function(element){element=$(element);if(element._overflow){return}element._overflow=element.style.overflow;if((Element.getStyle(element,"overflow")||"visible")!="hidden"){element.style.overflow="hidden"}},undoClipping:function(element){element=$(element);if(element._overflow){return}element.style.overflow=element._overflow;element._overflow=undefined}});var Toggle=new Object();Toggle.display=Element.toggle;Abstract.Insertion=function(adjacency){this.adjacency=adjacency};Abstract.Insertion.prototype={initialize:function(element,content){this.element=$(element);this.content=content.stripScripts();if(this.adjacency&&this.element.insertAdjacentHTML){try{this.element.insertAdjacentHTML(this.adjacency,this.content)}catch(e){if(this.element.tagName.toLowerCase()=="tbody"){this.insertContent(this.contentFromAnonymousTable())}else{throw e}}}else{this.range=this.element.ownerDocument.createRange();if(this.initializeRange){this.initializeRange()}this.insertContent([this.range.createContextualFragment(this.content)])}setTimeout(function(){content.evalScripts()},10)},contentFromAnonymousTable:function(){var div=document.createElement("div");div.innerHTML="<table><tbody>"+this.content+"</tbody></table>";return $A(div.childNodes[0].childNodes[0].childNodes)}};var Insertion=new Object();Insertion.Before=Class.create();Insertion.Before.prototype=Object.extend(new Abstract.Insertion("beforeBegin"),{initializeRange:function(){this.range.setStartBefore(this.element)},insertContent:function(fragments){fragments.each((function(fragment){this.element.parentNode.insertBefore(fragment,this.element)}).bind(this))}});Insertion.Top=Class.create();Insertion.Top.prototype=Object.extend(new Abstract.Insertion("afterBegin"),{initializeRange:function(){this.range.selectNodeContents(this.element);this.range.collapse(true)},insertContent:function(fragments){fragments.reverse(false).each((function(fragment){this.element.insertBefore(fragment,this.element.firstChild)}).bind(this))}});Insertion.Bottom=Class.create();Insertion.Bottom.prototype=Object.extend(new Abstract.Insertion("beforeEnd"),{initializeRange:function(){this.range.selectNodeContents(this.element);this.range.collapse(this.element)},insertContent:function(fragments){fragments.each((function(fragment){this.element.appendChild(fragment)}).bind(this))}});Insertion.After=Class.create();Insertion.After.prototype=Object.extend(new Abstract.Insertion("afterEnd"),{initializeRange:function(){this.range.setStartAfter(this.element)},insertContent:function(fragments){fragments.each((function(fragment){this.element.parentNode.insertBefore(fragment,this.element.nextSibling)}).bind(this))}});Element.ClassNames=Class.create();Element.ClassNames.prototype={initialize:function(element){this.element=$(element)},_each:function(iterator){this.element.className.split(/\s+/).select(function(name){return name.length>0})._each(iterator)},set:function(className){this.element.className=className},add:function(classNameToAdd){if(this.include(classNameToAdd)){return}this.set(this.toArray().concat(classNameToAdd).join(" "))},remove:function(classNameToRemove){if(!this.include(classNameToRemove)){return}this.set(this.select(function(className){return className!=classNameToRemove}).join(" "))},toString:function(){return this.toArray().join(" ")}};Object.extend(Element.ClassNames.prototype,Enumerable);var Field={clear:function(){for(var i=0;i<arguments.length;i++){$(arguments[i]).value=""}},focus:function(element){$(element).focus()},present:function(){for(var i=0;i<arguments.length;i++){if($(arguments[i]).value==""){return false}}return true},select:function(element){$(element).select()},activate:function(element){element=$(element);element.focus();if(element.select){element.select()}}};var Form={serialize:function(form){var elements=Form.getElements($(form));var queryComponents=new Array();for(var i=0;i<elements.length;i++){var queryComponent=Form.Element.serialize(elements[i]);if(queryComponent){queryComponents.push(queryComponent)}}return queryComponents.join("&")},getElements:function(form){form=$(form);var elements=new Array();for(tagName in Form.Element.Serializers){var tagElements=form.getElementsByTagName(tagName);for(var j=0;j<tagElements.length;j++){elements.push(tagElements[j])}}return elements},getInputs:function(form,typeName,name){form=$(form);var inputs=form.getElementsByTagName("input");if(!typeName&&!name){return inputs}var matchingInputs=new Array();for(var i=0;i<inputs.length;i++){var input=inputs[i];if((typeName&&input.type!=typeName)||(name&&input.name!=name)){continue}matchingInputs.push(input)}return matchingInputs},disable:function(form){var elements=Form.getElements(form);for(var i=0;i<elements.length;i++){var element=elements[i];element.blur();element.disabled="true"}},enable:function(form){var elements=Form.getElements(form);for(var i=0;i<elements.length;i++){var element=elements[i];element.disabled=""}},findFirstElement:function(form){return Form.getElements(form).find(function(element){return element.type!="hidden"&&!element.disabled&&["input","select","textarea"].include(element.tagName.toLowerCase())})},focusFirstElement:function(form){Field.activate(Form.findFirstElement(form))},reset:function(form){$(form).reset()}};Form.Element={serialize:function(element){element=$(element);var method=element.tagName.toLowerCase();var parameter=Form.Element.Serializers[method](element);if(parameter){var key=encodeURIComponent(parameter[0]);if(key.length==0){return}if(parameter[1].constructor!=Array){parameter[1]=[parameter[1]]}return parameter[1].map(function(value){return key+"="+encodeURIComponent(value)}).join("&")}},getValue:function(element){element=$(element);var method=element.tagName.toLowerCase();var parameter=Form.Element.Serializers[method](element);if(parameter){return parameter[1]}}};Form.Element.Serializers={input:function(element){switch(element.type.toLowerCase()){case"submit":case"hidden":case"password":case"text":return Form.Element.Serializers.textarea(element);case"checkbox":case"radio":return Form.Element.Serializers.inputSelector(element)}return false},inputSelector:function(element){if(element.checked){return[element.name,element.value]}},textarea:function(element){return[element.name,element.value]},select:function(element){return Form.Element.Serializers[element.type=="select-one"?"selectOne":"selectMany"](element)},selectOne:function(element){var value="",opt,index=element.selectedIndex;if(index>=0){opt=element.options[index];value=opt.value;if(!value&&!("value" in opt)){value=opt.text}}return[element.name,value]},selectMany:function(element){var value=new Array();for(var i=0;i<element.length;i++){var opt=element.options[i];if(opt.selected){var optValue=opt.value;if(!optValue&&!("value" in opt)){optValue=opt.text}value.push(optValue)}}return[element.name,value]}};var $F=Form.Element.getValue;Abstract.TimedObserver=function(){};Abstract.TimedObserver.prototype={initialize:function(element,frequency,callback){this.frequency=frequency;this.element=$(element);this.callback=callback;this.lastValue=this.getValue();this.registerCallback()},registerCallback:function(){setInterval(this.onTimerEvent.bind(this),this.frequency*1000)},onTimerEvent:function(){var value=this.getValue();if(this.lastValue!=value){this.callback(this.element,value);this.lastValue=value}}};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(element,callback){this.element=$(element);this.callback=callback;this.lastValue=this.getValue();if(this.element.tagName.toLowerCase()=="form"){this.registerFormCallbacks()}else{this.registerCallback(this.element)}},onElementEvent:function(){var value=this.getValue();if(this.lastValue!=value){this.callback(this.element,value);this.lastValue=value}},registerFormCallbacks:function(){var elements=Form.getElements(this.element);for(var i=0;i<elements.length;i++){this.registerCallback(elements[i])}},registerCallback:function(element){if(element.type){switch(element.type.toLowerCase()){case"checkbox":case"radio":Event.observe(element,"click",this.onElementEvent.bind(this));break;case"password":case"text":case"textarea":case"select-one":case"select-multiple":Event.observe(element,"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,element:function(event){return event.target||event.srcElement},isLeftClick:function(event){return(((event.which)&&(event.which==1))||((event.button)&&(event.button==1)))},pointerX:function(event){return event.pageX||(event.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft))},pointerY:function(event){return event.pageY||(event.clientY+(document.documentElement.scrollTop||document.body.scrollTop))},stop:function(event){if(event.preventDefault){event.preventDefault();event.stopPropagation()}else{event.returnValue=false;event.cancelBubble=true}},findElement:function(event,tagName){var element=Event.element(event);while(element.parentNode&&(!element.tagName||(element.tagName.toUpperCase()!=tagName.toUpperCase()))){element=element.parentNode}return element},observers:false,_observeAndCache:function(element,name,observer,useCapture){if(!this.observers){this.observers=[]}if(element.addEventListener){this.observers.push([element,name,observer,useCapture]);element.addEventListener(name,observer,useCapture)}else{if(element.attachEvent){this.observers.push([element,name,observer,useCapture]);element.attachEvent("on"+name,observer)}}},unloadCache:function(){if(!Event.observers){return}for(var i=0;i<Event.observers.length;i++){Event.stopObserving.apply(this,Event.observers[i]);Event.observers[i][0]=null}Event.observers=false},observe:function(element,name,observer,useCapture){var element=$(element);useCapture=useCapture||false;if(name=="keypress"&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.attachEvent)){name="keydown"}this._observeAndCache(element,name,observer,useCapture)},stopObserving:function(element,name,observer,useCapture){var element=$(element);useCapture=useCapture||false;if(name=="keypress"&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.detachEvent)){name="keydown"}if(element.removeEventListener){element.removeEventListener(name,observer,useCapture)}else{if(element.detachEvent){element.detachEvent("on"+name,observer)}}}});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(element){var valueT=0,valueL=0;do{valueT+=element.scrollTop||0;valueL+=element.scrollLeft||0;element=element.parentNode}while(element);return[valueL,valueT]},cumulativeOffset:function(element){var valueT=0,valueL=0;do{valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;element=element.offsetParent}while(element);return[valueL,valueT]},positionedOffset:function(element){var valueT=0,valueL=0;do{valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;element=element.offsetParent;if(element){p=Element.getStyle(element,"position");if(p=="relative"||p=="absolute"){break}}}while(element);return[valueL,valueT]},offsetParent:function(element){if(element.offsetParent){return element.offsetParent}if(element==document.body){return element}while((element=element.parentNode)&&element!=document.body){if(Element.getStyle(element,"position")!="static"){return element}}return document.body},within:function(element,x,y){if(this.includeScrollOffsets){return this.withinIncludingScrolloffsets(element,x,y)}this.xcomp=x;this.ycomp=y;this.offset=this.cumulativeOffset(element);return(y>=this.offset[1]&&y<this.offset[1]+element.offsetHeight&&x>=this.offset[0]&&x<this.offset[0]+element.offsetWidth)},withinIncludingScrolloffsets:function(element,x,y){var offsetcache=this.realOffset(element);this.xcomp=x+offsetcache[0]-this.deltaX;this.ycomp=y+offsetcache[1]-this.deltaY;this.offset=this.cumulativeOffset(element);return(this.ycomp>=this.offset[1]&&this.ycomp<this.offset[1]+element.offsetHeight&&this.xcomp>=this.offset[0]&&this.xcomp<this.offset[0]+element.offsetWidth)},overlap:function(mode,element){if(!mode){return 0}if(mode=="vertical"){return((this.offset[1]+element.offsetHeight)-this.ycomp)/element.offsetHeight}if(mode=="horizontal"){return((this.offset[0]+element.offsetWidth)-this.xcomp)/element.offsetWidth}},clone:function(source,target){source=$(source);target=$(target);target.style.position="absolute";var offsets=this.cumulativeOffset(source);target.style.top=offsets[1]+"px";target.style.left=offsets[0]+"px";target.style.width=source.offsetWidth+"px";target.style.height=source.offsetHeight+"px"},page:function(forElement){var valueT=0,valueL=0;var element=forElement;do{valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;if(element.offsetParent==document.body){if(Element.getStyle(element,"position")=="absolute"){break}}}while(element=element.offsetParent);element=forElement;do{valueT-=element.scrollTop||0;valueL-=element.scrollLeft||0}while(element=element.parentNode);return[valueL,valueT]},clone:function(source,target){var options=Object.extend({setLeft:true,setTop:true,setWidth:true,setHeight:true,offsetTop:0,offsetLeft:0},arguments[2]||{});source=$(source);var p=Position.page(source);target=$(target);var delta=[0,0];var parent=null;if(Element.getStyle(target,"position")=="absolute"){parent=Position.offsetParent(target);delta=Position.page(parent)}if(parent==document.body){delta[0]-=document.body.offsetLeft;delta[1]-=document.body.offsetTop}if(options.setLeft){target.style.left=(p[0]-delta[0]+options.offsetLeft)+"px"}if(options.setTop){target.style.top=(p[1]-delta[1]+options.offsetTop)+"px"}if(options.setWidth){target.style.width=source.offsetWidth+"px"}if(options.setHeight){target.style.height=source.offsetHeight+"px"}},absolutize:function(element){element=$(element);if(element.style.position=="absolute"){return}Position.prepare();var offsets=Position.positionedOffset(element);var top=offsets[1];var left=offsets[0];var width=element.clientWidth;var height=element.clientHeight;element._originalLeft=left-parseFloat(element.style.left||0);element._originalTop=top-parseFloat(element.style.top||0);element._originalWidth=element.style.width;element._originalHeight=element.style.height;element.style.position="absolute";element.style.top=top+"px";element.style.left=left+"px";element.style.width=width+"px";element.style.height=height+"px"},relativize:function(element){element=$(element);if(element.style.position=="relative"){return}Position.prepare();element.style.position="relative";var top=parseFloat(element.style.top||0)-(element._originalTop||0);var left=parseFloat(element.style.left||0)-(element._originalLeft||0);element.style.top=top+"px";element.style.left=left+"px";element.style.height=element._originalHeight;element.style.width=element._originalWidth}};if(/Konqueror|Safari|KHTML/.test(navigator.userAgent)){Position.cumulativeOffset=function(element){var valueT=0,valueL=0;do{valueT+=element.offsetTop||0;valueL+=element.offsetLeft||0;if(element.offsetParent==document.body){if(Element.getStyle(element,"position")=="absolute"){break}}element=element.offsetParent}while(element);return[valueL,valueT]}};