var Prototype={Version:'1.5.0_rc0',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(var 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 digits=this.toString(16);if(this<16)return '0'+digits;return digits;},succ:function(){return this+1;},times:function(iterator){$R(0, this, true).each(iterator);return this;}
});var Try={these:function(){var returnValue;for(var i=0;i<arguments.length;i++){var lambda=arguments[i];try{returnValue=lambda();break;}catch(e){}
}
return returnValue;}
}
var PeriodicalExecuter=Class.create();PeriodicalExecuter.prototype={initialize:function(callback, frequency){this.callback=callback;this.frequency=frequency;this.currentlyExecuting=false;this.registerCallback();},registerCallback:function(){setInterval(this.onTimerEvent.bind(this), this.frequency*1000);},onTimerEvent:function(){if(!this.currentlyExecuting){try{this.currentlyExecuting=true;this.callback();}finally{this.currentlyExecuting=false;}
}
}
}
Object.extend(String.prototype,{gsub:function(pattern, replacement){var result='', source=this, match;replacement=arguments.callee.prepareReplacement(replacement);while(source.length>0){if(match=source.match(pattern)){result+=source.slice(0, match.index);result+=(replacement(match)||'').toString();source=source.slice(match.index+match[0].length);}else{result+=source, source='';}
}
return result;},sub:function(pattern, replacement, count){replacement=this.gsub.prepareReplacement(replacement);count=count===undefined ? 1:count;return this.gsub(pattern, function(match){if(--count<0)return match[0];return replacement(match);});},scan:function(pattern, iterator){this.gsub(pattern, iterator);return this;},truncate:function(length, truncation){length=length||30;truncation=truncation===undefined ? '...':truncation;return this.length>length ?
this.slice(0, length-truncation.length)+truncation:this;},strip:function(){return this.replace(/^\s+/, '').replace(/\s+$/, '');},stripTags:function(){return this.replace(/<\/?[^>]+>/gi, '');},stripScripts:function(){return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');},extractScripts:function(){var matchAll=new RegExp(Prototype.ScriptFragment, 'img');var matchOne=new RegExp(Prototype.ScriptFragment, 'im');return(this.match(matchAll)||[]).map(function(scriptTag){return(scriptTag.match(matchOne)||['', ''])[1];});},evalScripts:function(){return this.extractScripts().map(function(script){return eval(script)});},escapeHTML:function(){var div=document.createElement('div');var text=document.createTextNode(this);div.appendChild(text);return div.innerHTML;},unescapeHTML:function(){var div=document.createElement('div');div.innerHTML=this.stripTags();return div.childNodes[0]? div.childNodes[0].nodeValue:'';},toQueryParams:function(){var pairs=this.match(/^\??(.*)$/)[1].split('&');return pairs.inject({}, function(params, pairString){var pair=pairString.split('=');params[pair[0]]=pair[1];return params;});},toArray:function(){return this.split('');},camelize:function(){var oStringList=this.split('-');if(oStringList.length==1)return oStringList[0];var camelizedString=this.indexOf('-')==0
? oStringList[0].charAt(0).toUpperCase()+oStringList[0].substring(1)
:oStringList[0];for(var i=1, len=oStringList.length;i<len;i++){var s=oStringList[i];camelizedString+=s.charAt(0).toUpperCase()+s.substring(1);}
return camelizedString;},inspect:function(){return "'"+this.replace(/\\/g, '\\\\').replace("/'/g", '\\\'')+"'";}
});String.prototype.gsub.prepareReplacement=function(replacement){if(typeof replacement=='function')return replacement;var template=new Template(replacement);return function(match){return template.evaluate(match)};}
String.prototype.parseQuery=String.prototype.toQueryParams;var Template=Class.create();Template.Pattern=/(^|.|\r|\n)(#\{(.*?)\})/;Template.prototype={initialize:function(template, pattern){this.template=template.toString();this.pattern=pattern||Template.Pattern;},evaluate:function(object){return this.template.gsub(this.pattern, function(match){var before=match[1];if(before=='\\')return match[2];return before+(object[match[3]]||'').toString();});}
}
var $break=new Object();var $continue=new Object();var Enumerable={each:function(iterator){var index=0;try{this._each(function(value){try{iterator(value, index++);}catch(e){if(e !=$continue)throw e;}
});}catch(e){if(e !=$break)throw e;}
},all:function(iterator){var result=true;this.each(function(value, index){result=result&&!!(iterator||Prototype.K)(value, index);if(!result)throw $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(result==undefined||value>=result)
result=value;});return result;},min:function(iterator){var result;this.each(function(value, index){value=(iterator||Prototype.K)(value, index);if(result==undefined||value<result)
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){return iterator(collections.pluck(index));});},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 $A=Array.from=function(iterable){if(!iterable)return[];if(iterable.toArray){return iterable.toArray();}else{var results=[];for(var i=0;i<iterable.length;i++)
results.push(iterable[i]);return results;}
}
Object.extend(Array.prototype, Enumerable);if(!Array.prototype._reverse)
Array.prototype._reverse=Array.prototype.reverse;Object.extend(Array.prototype,{_each:function(iterator){for(var i=0;i<this.length;i++)
iterator(this[i]);},clear:function(){this.length=0;return this;},first:function(){return this[0];},last:function(){return this[this.length-1];},compact:function(){return this.select(function(value){return value !=undefined||value !=null;});},flatten:function(){return this.inject([], function(array, value){return array.concat(value&&value.constructor==Array ?
value.flatten():[value]);});},without:function(){var values=$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();},inspect:function(){return '['+this.map(Object.inspect).join(', ')+']';}
});var Hash={_each:function(iterator){for(var 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 XMLHttpRequest()},function(){return new ActiveXObject('Msxml2.XMLHTTP')},function(){return new ActiveXObject('Microsoft.XMLHTTP')}
)||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,contentType:'application/x-www-form-urlencoded',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,'Accept', 'text/javascript, text/html, application/xml, text/xml, */*'];if(this.options.method=='post'){requestHeaders.push('Content-type', this.options.contentType);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 transport=this.transport, json=this.evalJSON();if(event=='Complete'){try{(this.options['on'+this.transport.status]
||this.options['on'+(this.responseIsSuccess()? 'Success':'Failure')]
||Prototype.emptyFunction)(transport, json);}catch(e){this.dispatchException(e);}
if((this.header('Content-type')||'').match(/^text\/javascript/i))
this.evalResponse();}
try{(this.options['on'+event]||Prototype.emptyFunction)(transport, json);Ajax.Responders.dispatch('on'+event, this, transport, json);}catch(e){this.dispatchException(e);}
if(event=='Complete')
this.transport.onreadystatechange=Prototype.emptyFunction;},dispatchException:function(exception){(this.options.onException||Prototype.emptyFunction)(this, exception);Ajax.Responders.dispatch('onException', this, exception);}
});Ajax.Updater=Class.create();Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype),{initialize:function(container, url, options){this.containers={success:container.success ? $(container.success):$(container),failure:container.failure ? $(container.failure):(container.success ? null:$(container))
}
this.transport=Ajax.getTransport();this.setOptions(options);var 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);}
});function $(){var results=[], element;for(var i=0;i<arguments.length;i++){element=arguments[i];if(typeof element=='string')
element=document.getElementById(element);results.push(Element.extend(element));}
return results.length<2 ? results[0]:results;}
document.getElementsByClassName=function(className, parentElement){var children=($(parentElement)||document.body).getElementsByTagName('*');return $A(children).inject([], function(elements, child){if(child.className.match(new RegExp("(^|\\s)"+className+"(\\s|$)")))
elements.push(Element.extend(child));return elements;});}
if(!window.Element)
var Element=new Object();Element.extend=function(element){if(!element)return;if(_nativeExtensions)return element;if(!element._extended&&element.tagName&&element !=window){var methods=Element.Methods, cache=Element.extend.cache;for(property in methods){var value=methods[property];if(typeof value=='function')
element[property]=cache.findOrStore(value);}
}
element._extended=true;return element;}
Element.extend.cache={findOrStore:function(value){return this[value]=this[value]||function(){return value.apply(null,[this].concat($A(arguments)));}
}
}
Element.Methods={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);},replace:function(element, html){element=$(element);if(element.outerHTML){element.outerHTML=html.stripScripts();}else{var range=element.ownerDocument.createRange();range.selectNodeContents(element);element.parentNode.replaceChild(range.createContextualFragment(html.stripScripts()), element);}
setTimeout(function(){html.evalScripts()}, 10);},getHeight:function(element){element=$(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 $(element).innerHTML.match(/^\s*$/);},childOf:function(element, ancestor){element=$(element), ancestor=$(ancestor);while(element=element.parentNode)
if(element==ancestor)return true;return false;},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=$(element);for(var name in style)
element.style[name.camelize()]=style[name];},getDimensions:function(element){element=$(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;}
}
Object.extend(Element, Element.Methods);var _nativeExtensions=false;if(!HTMLElement&&/Konqueror|Safari|KHTML/.test(navigator.userAgent)){var HTMLElement={}
HTMLElement.prototype=document.createElement('div').__proto__;}
Element.addMethods=function(methods){Object.extend(Element.Methods, methods||{});if(typeof HTMLElement !='undefined'){var methods=Element.Methods, cache=Element.extend.cache;for(property in methods){var value=methods[property];if(typeof value=='function')
HTMLElement.prototype[property]=cache.findOrStore(value);}
_nativeExtensions=true;}
}
Element.addMethods();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){var tagName=this.element.tagName.toLowerCase();if(tagName=='tbody'||tagName=='tr'){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 Selector=Class.create();Selector.prototype={initialize:function(expression){this.params={classNames:[]};this.expression=expression.toString().strip();this.parseExpression();this.compileMatcher();},parseExpression:function(){function abort(message){throw 'Parse error in selector: '+message;}
if(this.expression=='')abort('empty expression');var params=this.params, expr=this.expression, match, modifier, clause, rest;while(match=expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)){params.attributes=params.attributes||[];params.attributes.push({name:match[2], operator:match[3], value:match[4]||match[5]||''});expr=match[1];}
if(expr=='*')return this.params.wildcard=true;while(match=expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)){modifier=match[1], clause=match[2], rest=match[3];switch(modifier){case '#':params.id=clause;break;case '.':params.classNames.push(clause);break;case '':case undefined:params.tagName=clause.toUpperCase();break;default:abort(expr.inspect());}
expr=rest;}
if(expr.length>0)abort(expr.inspect());},buildMatchExpression:function(){var params=this.params, conditions=[], clause;if(params.wildcard)
conditions.push('true');if(clause=params.id)
conditions.push('element.id == '+clause.inspect());if(clause=params.tagName)
conditions.push('element.tagName.toUpperCase() == '+clause.inspect());if((clause=params.classNames).length>0)
for(var i=0;i<clause.length;i++)
conditions.push('Element.hasClassName(element, '+clause[i].inspect()+')');if(clause=params.attributes){clause.each(function(attribute){var value='element.getAttribute('+attribute.name.inspect()+')';var splitValueBy=function(delimiter){return value+' && '+value+'.split('+delimiter.inspect()+')';}
switch(attribute.operator){case '=':conditions.push(value+' == '+attribute.value.inspect());break;case '~=':conditions.push(splitValueBy(' ')+'.include('+attribute.value.inspect()+')');break;case '|=':conditions.push(splitValueBy('-')+'.first().toUpperCase() == '+attribute.value.toUpperCase().inspect()
);break;case '!=':conditions.push(value+' != '+attribute.value.inspect());break;case '':case undefined:conditions.push(value+' != null');break;default:throw 'Unknown operator '+attribute.operator+' in selector';}
});}
return conditions.join(' && ');},compileMatcher:function(){this.match=new Function('element', 'if (!element.tagName) return false; \
      return '+this.buildMatchExpression());},findElements:function(scope){var element;if(element=$(this.params.id))
if(this.match(element))
if(!scope||Element.childOf(element, scope))
return[element];scope=(scope||document).getElementsByTagName(this.params.tagName||'*');var results=[];for(var i=0;i<scope.length;i++)
if(this.match(element=scope[i]))
results.push(Element.extend(element));return results;},toString:function(){return this.expression;}
}
function $$(){return $A(arguments).map(function(expression){return expression.strip().split(/\s+/).inject([null], function(results, expr){var selector=new Selector(expr);return results.map(selector.findElements.bind(selector)).flatten();});}).flatten();}
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=$(form);var elements=new Array();for(var tagName in Form.Element.Serializers){var tagElements=form.getElementsByTagName(tagName);for(var j=0;j<tagElements.length;j++)
elements.push(tagElements[j]);}
return elements;},getInputs:function(form, typeName, name){form=$(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||opt.text;}
return[element.name, value];},selectMany:function(element){var value=[];for(var i=0;i<element.length;i++){var opt=element.options[i];if(opt.selected)
value.push(opt.value||opt.text);}
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);}
}
});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(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];}
}