function $H(a){var b=Object.extend({},a||{});Object.extend(b,Enumerable);Object.extend(b,Hash);return b}function $(){var a=new Array;for(var b=0;b<arguments.length;b++){var c=arguments[b];if(typeof c=="string")c=document.getElementById(c);if(arguments.length==1)return c;a.push(c)}return a}var Prototype={Version:"1.4.0",ScriptFragment:"(?:<script.*?>)((\n|\r|.)*?)(?:</script>)",emptyFunction:function(){},K:function(a){return a}};var Class={create:function(){return function(){this.initialize.apply(this,arguments)}}};var Abstract=new Object;Object.extend=function(a,b){for(property in b){a[property]=b[property]}return a};Object.inspect=function(a){try{if(a==undefined)return"undefined";if(a==null)return"null";return a.inspect?a.inspect():a.toString()}catch(b){if(b instanceof RangeError)return"...";throw b}};Function.prototype.bind=function(){var a=this,b=$A(arguments),c=b.shift();return function(){return a.apply(c,b.concat($A(arguments)))}};Function.prototype.bindAsEventListener=function(a){var b=this;return function(c){return b.call(a,c||window.event)}};Object.extend(Number.prototype,{toColorPart:function(){var a=this.toString(16);if(this<16)return"0"+a;return a},succ:function(){return this+1},times:function(a){$R(0,this,true).each(a);return this}});var Try={these:function(){var a;for(var b=0;b<arguments.length;b++){var c=arguments[b];try{a=c();break}catch(d){}}return a}};var PeriodicalExecuter=Class.create();PeriodicalExecuter.prototype={initialize:function(a,b){this.callback=a;this.frequency=b;this.currentlyExecuting=false;this.registerCallback()},registerCallback:function(){setInterval(this.onTimerEvent.bind(this),this.frequency*1e3)},onTimerEvent:function(){if(!this.currentlyExecuting){try{this.currentlyExecuting=true;this.callback()}finally{this.currentlyExecuting=false}}}};Object.extend(String.prototype,{stripTags:function(){return this.replace(/<\/?[^>]+>/gi,"")},stripScripts:function(){return this.replace(new RegExp(Prototype.ScriptFragment,"img"),"")},extractScripts:function(){var a=new RegExp(Prototype.ScriptFragment,"img");var b=new RegExp(Prototype.ScriptFragment,"im");return(this.match(a)||[]).map(function(a){return(a.match(b)||["",""])[1]})},evalScripts:function(){return this.extractScripts().map(eval)},escapeHTML:function(){var a=document.createElement("div");var b=document.createTextNode(this);a.appendChild(b);return a.innerHTML},unescapeHTML:function(){var a=document.createElement("div");a.innerHTML=this.stripTags();return a.childNodes[0]?a.childNodes[0].nodeValue:""},toQueryParams:function(){var a=this.match(/^\??(.*)$/)[1].split("&");return a.inject({},function(a,b){var c=b.split("=");a[c[0]]=c[1];return a})},toArray:function(){return this.split("")},camelize:function(){var a=this.split("-");if(a.length==1)return a[0];var b=this.indexOf("-")==0?a[0].charAt(0).toUpperCase()+a[0].substring(1):a[0];for(var c=1,d=a.length;c<d;c++){var e=a[c];b+=e.charAt(0).toUpperCase()+e.substring(1)}return b},inspect:function(){return"'"+this.replace("\\","\\\\").replace("'","\\'")+"'"}});String.prototype.parseQuery=String.prototype.toQueryParams;var $break=new Object;var $continue=new Object;var Enumerable={each:function(a){var b=0;try{this._each(function(c){try{a(c,b++)}catch(d){if(d!=$continue)throw d}})}catch(c){if(c!=$break)throw c}},all:function(a){var b=true;this.each(function(c,d){b=b&&!!(a||Prototype.K)(c,d);if(!b)throw $break});return b},any:function(a){var b=true;this.each(function(c,d){if(b=!!(a||Prototype.K)(c,d))throw $break});return b},collect:function(a){var b=[];this.each(function(c,d){b.push(a(c,d))});return b},detect:function(a){var b;this.each(function(c,d){if(a(c,d)){b=c;throw $break}});return b},findAll:function(a){var b=[];this.each(function(c,d){if(a(c,d))b.push(c)});return b},grep:function(a,b){var c=[];this.each(function(d,e){var f=d.toString();if(f.match(a))c.push((b||Prototype.K)(d,e))});return c},include:function(a){var b=false;this.each(function(c){if(c==a){b=true;throw $break}});return b},inject:function(a,b){this.each(function(c,d){a=b(a,c,d)});return a},invoke:function(a){var b=$A(arguments).slice(1);return this.collect(function(c){return c[a].apply(c,b)})},max:function(a){var b;this.each(function(c,d){c=(a||Prototype.K)(c,d);if(c>=(b||c))b=c});return b},min:function(a){var b;this.each(function(c,d){c=(a||Prototype.K)(c,d);if(c<=(b||c))b=c});return b},partition:function(a){var b=[],c=[];this.each(function(d,e){((a||Prototype.K)(d,e)?b:c).push(d)});return[b,c]},pluck:function(a){var b=[];this.each(function(c,d){b.push(c[a])});return b},reject:function(a){var b=[];this.each(function(c,d){if(!a(c,d))b.push(c)});return b},sortBy:function(a){return this.collect(function(b,c){return{value:b,criteria:a(b,c)}}).sort(function(a,b){var c=a.criteria,d=b.criteria;return c<d?-1:c>d?1:0}).pluck("value")},toArray:function(){return this.collect(Prototype.K)},zip:function(){var a=Prototype.K,b=$A(arguments);if(typeof b.last()=="function")a=b.pop();var c=[this].concat(b).map($A);return this.map(function(b,d){a(b=c.pluck(d));return b})},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 $A=Array.from=function(a){if(!a)return[];if(a.toArray){return a.toArray()}else{var b=[];for(var c=0;c<a.length;c++)b.push(a[c]);return b}};Object.extend(Array.prototype,Enumerable);Array.prototype._reverse=Array.prototype.reverse;Object.extend(Array.prototype,{_each:function(a){for(var b=0;b<this.length;b++)a(this[b])},clear:function(){this.length=0;return this},first:function(){return this[0]},last:function(){return this[this.length-1]},compact:function(){return this.select(function(a){return a!=undefined||a!=null})},flatten:function(){return this.inject([],function(a,b){return a.concat(b.constructor==Array?b.flatten():[b])})},without:function(){var a=$A(arguments);return this.select(function(b){return!a.include(b)})},indexOf:function(a){for(var b=0;b<this.length;b++)if(this[b]==a)return b;return-1},reverse:function(a){return(a!==false?this:this.toArray())._reverse()},shift:function(){var a=this[0];for(var b=0;b<this.length-1;b++)this[b]=this[b+1];this.length--;return a},inspect:function(){return"["+this.map(Object.inspect).join(", ")+"]"}});var Hash={_each:function(a){for(key in this){var b=this[key];if(typeof b=="function")continue;var c=[key,b];c.key=key;c.value=b;a(c)}},keys:function(){return this.pluck("key")},values:function(){return this.pluck("value")},merge:function(a){return $H(a).inject($H(this),function(a,b){a[b.key]=b.value;return a})},toQueryString:function(){return this.map(function(a){return a.map(encodeURIComponent).join("=")}).join("&")},inspect:function(){return"#<Hash:{"+this.map(function(a){return a.map(Object.inspect).join(": ")}).join(", ")+"}>"}};ObjectRange=Class.create();Object.extend(ObjectRange.prototype,Enumerable);Object.extend(ObjectRange.prototype,{initialize:function(a,b,c){this.start=a;this.end=b;this.exclusive=c},_each:function(a){var b=this.start;do{a(b);b=b.succ()}while(this.include(b))},include:function(a){if(a<this.start)return false;if(this.exclusive)return a<this.end;return a<=this.end}});var $R=function(a,b,c){return new ObjectRange(a,b,c)};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(a){this.responders._each(a)},register:function(a){if(!this.include(a))this.responders.push(a)},unregister:function(a){this.responders=this.responders.without(a)},dispatch:function(a,b,c,d){this.each(function(e){if(e[a]&&typeof e[a]=="function"){try{e[a].apply(e,[b,c,d])}catch(f){}}})}};Object.extend(Ajax.Responders,Enumerable);Ajax.Responders.register({onCreate:function(){Ajax.activeRequestCount++},onComplete:function(){Ajax.activeRequestCount--}});Ajax.Base=function(){};Ajax.Base.prototype={setOptions:function(a){this.options={method:"post",asynchronous:true,parameters:""};Object.extend(this.options,a||{})},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(a,b){this.transport=Ajax.getTransport();this.setOptions(b);this.request(a)},request:function(a){var b=this.options.parameters||"";if(b.length>0)b+="&_=";try{this.url=a;if(this.options.method=="get"&&b.length>0)this.url+=(this.url.match(/\?/)?"&":"?")+b;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 c=this.options.postBody?this.options.postBody:b;this.transport.send(this.options.method=="post"?c:null)}catch(d){this.dispatchException(d)}},setRequestHeaders:function(){var a=["X-Requested-With","XMLHttpRequest","X-Prototype-Version",Prototype.Version];if(this.options.method=="post"){a.push("Content-type","application/x-www-form-urlencoded");if(this.transport.overrideMimeType)a.push("Connection","close")}if(this.options.requestHeaders)a.push.apply(a,this.options.requestHeaders);for(var b=0;b<a.length;b+=2)this.transport.setRequestHeader(a[b],a[b+1])},onStateChange:function(){var a=this.transport.readyState;if(a!=1)this.respondToReadyState(this.transport.readyState)},header:function(a){try{return this.transport.getResponseHeader(a)}catch(b){}},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(a){var b=Ajax.Request.Events[a];var c=this.transport,d=this.evalJSON();if(b=="Complete"){try{(this.options["on"+this.transport.status]||this.options["on"+(this.responseIsSuccess()?"Success":"Failure")]||Prototype.emptyFunction)(c,d)}catch(e){this.dispatchException(e)}if((this.header("Content-type")||"").match(/^text\/javascript/i))this.evalResponse()}try{(this.options["on"+b]||Prototype.emptyFunction)(c,d);Ajax.Responders.dispatch("on"+b,this,c,d)}catch(e){this.dispatchException(e)}if(b=="Complete")this.transport.onreadystatechange=Prototype.emptyFunction},dispatchException:function(a){(this.options.onException||Prototype.emptyFunction)(this,a);Ajax.Responders.dispatch("onException",this,a)}});Ajax.Updater=Class.create();Object.extend(Object.extend(Ajax.Updater.prototype,Ajax.Request.prototype),{initialize:function(a,b,c){this.containers={success:a.success?$(a.success):$(a),failure:a.failure?$(a.failure):a.success?null:$(a)};this.transport=Ajax.getTransport();this.setOptions(c);var d=this.options.onComplete||Prototype.emptyFunction;this.options.onComplete=function(a,b){this.updateContent();d(a,b)}.bind(this);this.request(b)},updateContent:function(){var a=this.responseIsSuccess()?this.containers.success:this.containers.failure;var b=this.transport.responseText;if(!this.options.evalScripts)b=b.stripScripts();if(a){if(this.options.insertion){new this.options.insertion(a,b)}else{Element.update(a,b)}}if(this.responseIsSuccess()){if(this.onComplete)setTimeout(this.onComplete.bind(this),10)}}});Ajax.PeriodicalUpdater=Class.create();Ajax.PeriodicalUpdater.prototype=Object.extend(new Ajax.Base,{initialize:function(a,b,c){this.setOptions(c);this.onComplete=this.options.onComplete;this.frequency=this.options.frequency||2;this.decay=this.options.decay||1;this.updater={};this.container=a;this.url=b;this.start()},start:function(){this.options.onComplete=this.updateComplete.bind(this);this.onTimerEvent()},stop:function(){this.updater.onComplete=undefined;clearTimeout(this.timer);(this.onComplete||Prototype.emptyFunction).apply(this,arguments)},updateComplete:function(a){if(this.options.decay){this.decay=a.responseText==this.lastText?this.decay*this.options.decay:1;this.lastText=a.responseText}this.timer=setTimeout(this.onTimerEvent.bind(this),this.decay*this.frequency*1e3)},onTimerEvent:function(){this.updater=new Ajax.Updater(this.container,this.url,this.options)}});document.getElementsByClassName=function(a,b){var c=($(b)||document.body).getElementsByTagName("*");return $A(c).inject([],function(b,c){if(c.className.match(new RegExp("(^|\\s)"+a+"(\\s|$)")))b.push(c);return b})};if(!window.Element){var Element=new Object}Object.extend(Element,{visible:function(a){return $(a).style.display!="none"},toggle:function(){for(var a=0;a<arguments.length;a++){var b=$(arguments[a]);Element[Element.visible(b)?"hide":"show"](b)}},hide:function(){for(var a=0;a<arguments.length;a++){var b=$(arguments[a]);b.style.display="none"}},show:function(){for(var a=0;a<arguments.length;a++){var b=$(arguments[a]);b.style.display=""}},remove:function(a){a=$(a);a.parentNode.removeChild(a)},update:function(a,b){$(a).innerHTML=b.stripScripts();setTimeout(function(){b.evalScripts()},10)},getHeight:function(a){a=$(a);return a.offsetHeight},classNames:function(a){return new Element.ClassNames(a)},hasClassName:function(a,b){if(!(a=$(a)))return;return Element.classNames(a).include(b)},addClassName:function(a,b){if(!(a=$(a)))return;return Element.classNames(a).add(b)},removeClassName:function(a,b){if(!(a=$(a)))return;return Element.classNames(a).remove(b)},cleanWhitespace:function(a){a=$(a);for(var b=0;b<a.childNodes.length;b++){var c=a.childNodes[b];if(c.nodeType==3&&!/\S/.test(c.nodeValue))Element.remove(c)}},empty:function(a){return $(a).innerHTML.match(/^\s*$/)},scrollTo:function(a){a=$(a);var b=a.x?a.x:a.offsetLeft,c=a.y?a.y:a.offsetTop;window.scrollTo(b,c)},getStyle:function(a,b){a=$(a);var c=a.style[b.camelize()];if(!c){if(document.defaultView&&document.defaultView.getComputedStyle){var d=document.defaultView.getComputedStyle(a,null);c=d?d.getPropertyValue(b):null}else if(a.currentStyle){c=a.currentStyle[b.camelize()]}}if(window.opera&&["left","top","right","bottom"].include(b))if(Element.getStyle(a,"position")=="static")c="auto";return c=="auto"?null:c},setStyle:function(a,b){a=$(a);for(name in b)a.style[name.camelize()]=b[name]},getDimensions:function(a){a=$(a);if(Element.getStyle(a,"display")!="none")return{width:a.offsetWidth,height:a.offsetHeight};var b=a.style;var c=b.visibility;var d=b.position;b.visibility="hidden";b.position="absolute";b.display="";var e=a.clientWidth;var f=a.clientHeight;b.display="none";b.position=d;b.visibility=c;return{width:e,height:f}},makePositioned:function(a){a=$(a);var b=Element.getStyle(a,"position");if(b=="static"||!b){a._madePositioned=true;a.style.position="relative";if(window.opera){a.style.top=0;a.style.left=0}}},undoPositioned:function(a){a=$(a);if(a._madePositioned){a._madePositioned=undefined;a.style.position=a.style.top=a.style.left=a.style.bottom=a.style.right=""}},makeClipping:function(a){a=$(a);if(a._overflow)return;a._overflow=a.style.overflow;if((Element.getStyle(a,"overflow")||"visible")!="hidden")a.style.overflow="hidden"},undoClipping:function(a){a=$(a);if(a._overflow)return;a.style.overflow=a._overflow;a._overflow=undefined}});var Toggle=new Object;Toggle.display=Element.toggle;Abstract.Insertion=function(a){this.adjacency=a};Abstract.Insertion.prototype={initialize:function(a,b){this.element=$(a);this.content=b.stripScripts();if(this.adjacency&&this.element.insertAdjacentHTML){try{this.element.insertAdjacentHTML(this.adjacency,this.content)}catch(c){if(this.element.tagName.toLowerCase()=="tbody"){this.insertContent(this.contentFromAnonymousTable())}else{throw c}}}else{this.range=this.element.ownerDocument.createRange();if(this.initializeRange)this.initializeRange();this.insertContent([this.range.createContextualFragment(this.content)])}setTimeout(function(){b.evalScripts()},10)},contentFromAnonymousTable:function(){var a=document.createElement("div");a.innerHTML="<table><tbody>"+this.content+"</tbody></table>";return $A(a.childNodes[0].childNodes[0].childNodes)}};var Insertion=new Object;Insertion.Before=Class.create();Insertion.Before.prototype=Object.extend(new Abstract.Insertion("beforeBegin"),{initializeRange:function(){this.range.setStartBefore(this.element)},insertContent:function(a){a.each(function(a){this.element.parentNode.insertBefore(a,this.element)}.bind(this))}});Insertion.Top=Class.create();Insertion.Top.prototype=Object.extend(new Abstract.Insertion("afterBegin"),{initializeRange:function(){this.range.selectNodeContents(this.element);this.range.collapse(true)},insertContent:function(a){a.reverse(false).each(function(a){this.element.insertBefore(a,this.element.firstChild)}.bind(this))}});Insertion.Bottom=Class.create();Insertion.Bottom.prototype=Object.extend(new Abstract.Insertion("beforeEnd"),{initializeRange:function(){this.range.selectNodeContents(this.element);this.range.collapse(this.element)},insertContent:function(a){a.each(function(a){this.element.appendChild(a)}.bind(this))}});Insertion.After=Class.create();Insertion.After.prototype=Object.extend(new Abstract.Insertion("afterEnd"),{initializeRange:function(){this.range.setStartAfter(this.element)},insertContent:function(a){a.each(function(a){this.element.parentNode.insertBefore(a,this.element.nextSibling)}.bind(this))}});Element.ClassNames=Class.create();Element.ClassNames.prototype={initialize:function(a){this.element=$(a)},_each:function(a){this.element.className.split(/\s+/).select(function(a){return a.length>0})._each(a)},set:function(a){this.element.className=a},add:function(a){if(this.include(a))return;this.set(this.toArray().concat(a).join(" "))},remove:function(a){if(!this.include(a))return;this.set(this.select(function(b){return b!=a}).join(" "))},toString:function(){return this.toArray().join(" ")}};Object.extend(Element.ClassNames.prototype,Enumerable);var Field={clear:function(){for(var a=0;a<arguments.length;a++)$(arguments[a]).value=""},focus:function(a){$(a).focus()},present:function(){for(var a=0;a<arguments.length;a++)if($(arguments[a]).value=="")return false;return true},select:function(a){$(a).select()},activate:function(a){a=$(a);a.focus();if(a.select)a.select()}};var Form={serialize:function(a){var b=Form.getElements($(a));var c=new Array;for(var d=0;d<b.length;d++){var e=Form.Element.serialize(b[d]);if(e)c.push(e)}return c.join("&")},getElements:function(a){a=$(a);var b=new Array;for(tagName in Form.Element.Serializers){var c=a.getElementsByTagName(tagName);for(var d=0;d<c.length;d++)b.push(c[d])}return b},getInputs:function(a,b,c){a=$(a);var d=a.getElementsByTagName("input");if(!b&&!c)return d;var e=new Array;for(var f=0;f<d.length;f++){var g=d[f];if(b&&g.type!=b||c&&g.name!=c)continue;e.push(g)}return e},disable:function(a){var b=Form.getElements(a);for(var c=0;c<b.length;c++){var d=b[c];d.blur();d.disabled="true"}},enable:function(a){var b=Form.getElements(a);for(var c=0;c<b.length;c++){var d=b[c];d.disabled=""}},findFirstElement:function(a){return Form.getElements(a).find(function(a){return a.type!="hidden"&&!a.disabled&&["input","select","textarea"].include(a.tagName.toLowerCase())})},focusFirstElement:function(a){Field.activate(Form.findFirstElement(a))},reset:function(a){$(a).reset()}};Form.Element={serialize:function(a){a=$(a);var b=a.tagName.toLowerCase();var c=Form.Element.Serializers[b](a);if(c){var d=encodeURIComponent(c[0]);if(d.length==0)return;if(c[1].constructor!=Array)c[1]=[c[1]];return c[1].map(function(a){return d+"="+encodeURIComponent(a)}).join("&")}},getValue:function(a){a=$(a);var b=a.tagName.toLowerCase();var c=Form.Element.Serializers[b](a);if(c)return c[1]}};Form.Element.Serializers={input:function(a){switch(a.type.toLowerCase()){case"submit":case"hidden":case"password":case"text":return Form.Element.Serializers.textarea(a);case"checkbox":case"radio":return Form.Element.Serializers.inputSelector(a)}return false},inputSelector:function(a){if(a.checked)return[a.name,a.value]},textarea:function(a){return[a.name,a.value]},select:function(a){return Form.Element.Serializers[a.type=="select-one"?"selectOne":"selectMany"](a)},selectOne:function(a){var b="",c,d=a.selectedIndex;if(d>=0){c=a.options[d];b=c.value;if(!b&&!("value"in c))b=c.text}return[a.name,b]},selectMany:function(a){var b=new Array;for(var c=0;c<a.length;c++){var d=a.options[c];if(d.selected){var e=d.value;if(!e&&!("value"in d))e=d.text;b.push(e)}}return[a.name,b]}};var $F=Form.Element.getValue;Abstract.TimedObserver=function(){};Abstract.TimedObserver.prototype={initialize:function(a,b,c){this.frequency=b;this.element=$(a);this.callback=c;this.lastValue=this.getValue();this.registerCallback()},registerCallback:function(){setInterval(this.onTimerEvent.bind(this),this.frequency*1e3)},onTimerEvent:function(){var a=this.getValue();if(this.lastValue!=a){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(){var a=Form.getElements(this.element);for(var b=0;b<a.length;b++)this.registerCallback(a[b])},registerCallback:function(a){if(a.type){switch(a.type.toLowerCase()){case"checkbox":case"radio":Event.observe(a,"click",this.onElementEvent.bind(this));break;case"password":case"text":case"textarea":case"select-one":case"select-multiple":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,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(a,b){var c=Event.element(a);while(c.parentNode&&(!c.tagName||c.tagName.toUpperCase()!=b.toUpperCase()))c=c.parentNode;return c},observers:false,_observeAndCache:function(a,b,c,d){if(!this.observers)this.observers=[];if(a.addEventListener){this.observers.push([a,b,c,d]);a.addEventListener(b,c,d)}else if(a.attachEvent){this.observers.push([a,b,c,d]);a.attachEvent("on"+b,c)}},unloadCache:function(){if(!Event.observers)return;for(var a=0;a<Event.observers.length;a++){Event.stopObserving.apply(this,Event.observers[a]);Event.observers[a][0]=null}Event.observers=false},observe:function(a,b,c,d){var a=$(a);d=d||false;if(b=="keypress"&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||a.attachEvent))b="keydown";this._observeAndCache(a,b,c,d)},stopObserving:function(a,b,c,d){var a=$(a);d=d||false;if(b=="keypress"&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||a.detachEvent))b="keydown";if(a.removeEventListener){a.removeEventListener(b,c,d)}else if(a.detachEvent){a.detachEvent("on"+b,c)}}});Event.observe(window,"unload",Event.unloadCache,false);var Position={includeScrollOffsets:false,prepare:function(){this.deltaX=window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft||0;this.deltaY=window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0},realOffset:function(a){var b=0,c=0;do{b+=a.scrollTop||0;c+=a.scrollLeft||0;a=a.parentNode}while(a);return[c,b]},cumulativeOffset:function(a){var b=0,c=0;do{b+=a.offsetTop||0;c+=a.offsetLeft||0;a=a.offsetParent}while(a);return[c,b]},positionedOffset:function(a){var b=0,c=0;do{b+=a.offsetTop||0;c+=a.offsetLeft||0;a=a.offsetParent;if(a){p=Element.getStyle(a,"position");if(p=="relative"||p=="absolute")break}}while(a);return[c,b]},offsetParent:function(a){if(a.offsetParent)return a.offsetParent;if(a==document.body)return a;while((a=a.parentNode)&&a!=document.body)if(Element.getStyle(a,"position")!="static")return a;return document.body},within:function(a,b,c){if(this.includeScrollOffsets)return this.withinIncludingScrolloffsets(a,b,c);this.xcomp=b;this.ycomp=c;this.offset=this.cumulativeOffset(a);return c>=this.offset[1]&&c<this.offset[1]+a.offsetHeight&&b>=this.offset[0]&&b<this.offset[0]+a.offsetWidth},withinIncludingScrolloffsets:function(a,b,c){var d=this.realOffset(a);this.xcomp=b+d[0]-this.deltaX;this.ycomp=c+d[1]-this.deltaY;this.offset=this.cumulativeOffset(a);return this.ycomp>=this.offset[1]&&this.ycomp<this.offset[1]+a.offsetHeight&&this.xcomp>=this.offset[0]&&this.xcomp<this.offset[0]+a.offsetWidth},overlap:function(a,b){if(!a)return 0;if(a=="vertical")return(this.offset[1]+b.offsetHeight-this.ycomp)/b.offsetHeight;if(a=="horizontal")return(this.offset[0]+b.offsetWidth-this.xcomp)/b.offsetWidth},clone:function(a,b){a=$(a);b=$(b);b.style.position="absolute";var c=this.cumulativeOffset(a);b.style.top=c[1]+"px";b.style.left=c[0]+"px";b.style.width=a.offsetWidth+"px";b.style.height=a.offsetHeight+"px"},page:function(a){var b=0,c=0;var d=a;do{b+=d.offsetTop||0;c+=d.offsetLeft||0;if(d.offsetParent==document.body)if(Element.getStyle(d,"position")=="absolute")break}while(d=d.offsetParent);d=a;do{b-=d.scrollTop||0;c-=d.scrollLeft||0}while(d=d.parentNode);return[c,b]},clone:function(a,b){var c=Object.extend({setLeft:true,setTop:true,setWidth:true,setHeight:true,offsetTop:0,offsetLeft:0},arguments[2]||{});a=$(a);var d=Position.page(a);b=$(b);var e=[0,0];var f=null;if(Element.getStyle(b,"position")=="absolute"){f=Position.offsetParent(b);e=Position.page(f)}if(f==document.body){e[0]-=document.body.offsetLeft;e[1]-=document.body.offsetTop}if(c.setLeft)b.style.left=d[0]-e[0]+c.offsetLeft+"px";if(c.setTop)b.style.top=d[1]-e[1]+c.offsetTop+"px";if(c.setWidth)b.style.width=a.offsetWidth+"px";if(c.setHeight)b.style.height=a.offsetHeight+"px"},absolutize:function(a){a=$(a);if(a.style.position=="absolute")return;Position.prepare();var b=Position.positionedOffset(a);var c=b[1];var d=b[0];var e=a.clientWidth;var f=a.clientHeight;a._originalLeft=d-parseFloat(a.style.left||0);a._originalTop=c-parseFloat(a.style.top||0);a._originalWidth=a.style.width;a._originalHeight=a.style.height;a.style.position="absolute";a.style.top=c+"px";a.style.left=d+"px";a.style.width=e+"px";a.style.height=f+"px";},relativize:function(a){a=$(a);if(a.style.position=="relative")return;Position.prepare();a.style.position="relative";var b=parseFloat(a.style.top||0)-(a._originalTop||0);var c=parseFloat(a.style.left||0)-(a._originalLeft||0);a.style.top=b+"px";a.style.left=c+"px";a.style.height=a._originalHeight;a.style.width=a._originalWidth}};if(/Konqueror|Safari|KHTML/.test(navigator.userAgent)){Position.cumulativeOffset=function(a){var b=0,c=0;do{b+=a.offsetTop||0;c+=a.offsetLeft||0;if(a.offsetParent==document.body)if(Element.getStyle(a,"position")=="absolute")break;a=a.offsetParent}while(a);return[c,b]}}