/*  Prototype JavaScript framework, version 1.5.0
 *  (c) 2005-2007 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
/*--------------------------------------------------------------------------*/
var Prototype={Version:'1.5.0',BrowserFeatures:{XPath:!!document.evaluate},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(var c in b){a[c]=b[c]}return a};Object.extend(Object,{inspect:function(a){try{if(a===undefined)return'undefined';if(a===null)return'null';return a.inspect?a.inspect():a.toString()}catch(e){if(e instanceof RangeError)return'...';throw e;}},keys:function(a){var b=[];for(var c in a)b.push(c);return b},values:function(a){var b=[];for(var c in a)b.push(a[c]);return b},clone:function(a){return Object.extend({},a)}});Function.prototype.bind=function(){var a=this,args=$A(arguments),object=args.shift();return function(){return a.apply(object,args.concat($A(arguments)))}};Function.prototype.bindAsEventListener=function(b){var c=this,args=$A(arguments),b=args.shift();return function(a){return c.apply(b,[(a||window.event)].concat(args).concat($A(arguments)))}};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){$R(0,this,true).each(a);return this}});var Try={these:function(){var a;for(var i=0,length=arguments.length;i<length;i++){var b=arguments[i];try{a=b();break}catch(e){}}return a}};var PeriodicalExecuter=Class.create();PeriodicalExecuter.prototype={initialize:function(a,b){this.callback=a;this.frequency=b;this.currentlyExecuting=false;this.registerCallback()},registerCallback:function(){this.timer=setInterval(this.onTimerEvent.bind(this),this.frequency*1000)},stop:function(){if(!this.timer)return;clearInterval(this.timer);this.timer=null},onTimerEvent:function(){if(!this.currentlyExecuting){try{this.currentlyExecuting=true;this.callback(this)}finally{this.currentlyExecuting=false}}}};String.interpret=function(a){return a==null?'':String(a)};Object.extend(String.prototype,{gsub:function(a,b){var c='',source=this,match;b=arguments.callee.prepareReplacement(b);while(source.length>0){if(match=source.match(a)){c+=source.slice(0,match.index);c+=String.interpret(b(match));source=source.slice(match.index+match[0].length)}else{c+=source,source=''}}return c},sub:function(b,c,d){c=this.gsub.prepareReplacement(c);d=d===undefined?1:d;return this.gsub(b,function(a){if(--d<0)return a[0];return c(a)})},scan:function(a,b){this.gsub(a,b);return this},truncate:function(a,b){a=a||30;b=b===undefined?'...':b;return this.length>a?this.slice(0,a-b.length)+b:this},strip:function(){return this.replace(/^\s+/,'').replace(/\s+$/,'')},stripTags:function(){return this.replace(/<\/?[^>]+>/gi,'')},stripScripts:function(){return this.replace(new RegExp(Prototype.ScriptFragment,'img'),'')},extractScripts:function(){var b=new RegExp(Prototype.ScriptFragment,'img');var c=new RegExp(Prototype.ScriptFragment,'im');return(this.match(b)||[]).map(function(a){return(a.match(c)||['',''])[1]})},evalScripts:function(){return this.extractScripts().map(function(a){return eval(a)})},escapeHTML:function(){var a=document.createElement('div');var b=document.createTextNode(this);a.appendChild(b);return a.innerHTML},unescapeHTML:function(){var c=document.createElement('div');c.innerHTML=this.stripTags();return c.childNodes[0]?(c.childNodes.length>1?$A(c.childNodes).inject('',function(a,b){return a+b.nodeValue}):c.childNodes[0].nodeValue):''},toQueryParams:function(e){var f=this.strip().match(/([^?#]*)(#.*)?$/);if(!f)return{};return f[1].split(e||'&').inject({},function(a,b){if((b=b.split('='))[0]){var c=decodeURIComponent(b[0]);var d=b[1]?decodeURIComponent(b[1]):undefined;if(a[c]!==undefined){if(a[c].constructor!=Array)a[c]=[a[c]];if(d)a[c].push(d)}else a[c]=d}return a})},toArray:function(){return this.split('')},succ:function(){return this.slice(0,this.length-1)+String.fromCharCode(this.charCodeAt(this.length-1)+1)},camelize:function(){var a=this.split('-'),len=a.length;if(len==1)return a[0];var b=this.charAt(0)=='-'?a[0].charAt(0).toUpperCase()+a[0].substring(1):a[0];for(var i=1;i<len;i++)b+=a[i].charAt(0).toUpperCase()+a[i].substring(1);return b},capitalize:function(){return this.charAt(0).toUpperCase()+this.substring(1).toLowerCase()},underscore:function(){return this.gsub(/::/,'/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase()},dasherize:function(){return this.gsub(/_/,'-')},inspect:function(a){var b=this.replace(/\\/g,'\\\\');if(useDoubleQuotes)return'"'+escapedString.replace(/"/g,'\\"')+'"';else return"'"+escapedString.replace(/'/g,'\\\'')+"'"}});String.prototype.gsub.prepareReplacement=function(b){if(typeof b=='function')return b;var c=new Template(b);return function(a){return c.evaluate(a)}};String.prototype.parseQuery=String.prototype.toQueryParams;var Template=Class.create();Template.Pattern=/(^|.|\r|\n)(#\{(.*?)\})/;Template.prototype={initialize:function(a,b){this.template=a.toString();this.pattern=b||Template.Pattern},evaluate:function(c){return this.template.gsub(this.pattern,function(a){var b=a[1];if(b=='\\')return a[2];return b+String.interpret(c[a[3]])})}};var $break=new Object();var $continue=new Object();var Enumerable={each:function(b){var c=0;try{this._each(function(a){try{b(a,c++)}catch(e){if(e!=$continue)throw e;}})}catch(e){if(e!=$break)throw e;}return this},eachSlice:function(a,b){var c=-a,slices=[],array=this.toArray();while((c+=a)<array.length)slices.push(array.slice(c,c+a));return slices.map(b)},all:function(c){var d=true;this.each(function(a,b){d=d&&!!(c||Prototype.K)(a,b);if(!d)throw $break;});return d},any:function(c){var d=false;this.each(function(a,b){if(d=!!(c||Prototype.K)(a,b))throw $break;});return d},collect:function(c){var d=[];this.each(function(a,b){d.push((c||Prototype.K)(a,b))});return d},detect:function(c){var d;this.each(function(a,b){if(c(a,b)){d=a;throw $break;}});return d},findAll:function(c){var d=[];this.each(function(a,b){if(c(a,b))d.push(a)});return d},grep:function(d,e){var f=[];this.each(function(a,b){var c=a.toString();if(c.match(d))f.push((e||Prototype.K)(a,b))});return f},include:function(b){var c=false;this.each(function(a){if(a==b){c=true;throw $break;}});return c},inGroupsOf:function(b,c){c=c===undefined?null:c;return this.eachSlice(b,function(a){while(a.length<b)a.push(c);return a})},inject:function(c,d){this.each(function(a,b){c=d(c,a,b)});return c},invoke:function(b){var c=$A(arguments).slice(1);return this.map(function(a){return a[b].apply(a,c)})},max:function(c){var d;this.each(function(a,b){a=(c||Prototype.K)(a,b);if(d==undefined||a>=d)d=a});return d},min:function(c){var d;this.each(function(a,b){a=(c||Prototype.K)(a,b);if(d==undefined||a<d)d=a});return d},partition:function(c){var d=[],falses=[];this.each(function(a,b){((c||Prototype.K)(a,b)?d:falses).push(a)});return[d,falses]},pluck:function(c){var d=[];this.each(function(a,b){d.push(a[c])});return d},reject:function(c){var d=[];this.each(function(a,b){if(!c(a,b))d.push(a)});return d},sortBy:function(e){return this.map(function(a,b){return{value:a,criteria:e(a,b)}}).sort(function(c,d){var a=c.criteria,b=d.criteria;return a<b?-1:a>b?1:0}).pluck('value')},toArray:function(){return this.map()},zip:function(){var c=Prototype.K,args=$A(arguments);if(typeof args.last()=='function')c=args.pop();var d=[this].concat(args).map($A);return this.map(function(a,b){return c(d.pluck(b))})},size:function(){return this.toArray().length},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 $A=Array.from=function(a){if(!a)return[];if(a.toArray){return a.toArray()}else{var b=[];for(var i=0,length=a.length;i<length;i++)b.push(a[i]);return b}};Object.extend(Array.prototype,Enumerable);if(!Array.prototype._reverse)Array.prototype._reverse=Array.prototype.reverse;Object.extend(Array.prototype,{_each:function(a){for(var i=0,length=this.length;i<length;i++)a(this[i])},clear:function(){this.length=0;return this},first:function(){return this[0]},last:function(){return this[this.length-1]},compact:function(){return this.select(function(a){return a!=null})},flatten:function(){return this.inject([],function(a,b){return a.concat(b&&b.constructor==Array?b.flatten():[b])})},without:function(){var b=$A(arguments);return this.select(function(a){return!b.include(a)})},indexOf:function(a){for(var i=0,length=this.length;i<length;i++)if(this[i]==a)return i;return-1},reverse:function(a){return(a!==false?this:this.toArray())._reverse()},reduce:function(){return this.length>1?this:this[0]},uniq:function(){return this.inject([],function(a,b){return a.include(b)?a:a.concat([b])})},clone:function(){return[].concat(this)},size:function(){return this.length},inspect:function(){return'['+this.map(Object.inspect).join(', ')+']'}});Array.prototype.toArray=Array.prototype.clone;function $w(a){a=a.strip();return a?a.split(/\s+/):[]}if(window.opera){Array.prototype.concat=function(){var a=[];for(var i=0,length=this.length;i<length;i++)a.push(this[i]);for(var i=0,length=arguments.length;i<length;i++){if(arguments[i].constructor==Array){for(var j=0,arrayLength=arguments[i].length;j<arrayLength;j++)a.push(arguments[i][j])}else{a.push(arguments[i])}}return a}}var Hash=function(a){Object.extend(this,a||{})};Object.extend(Hash,{toQueryString:function(d){var e=[];this.prototype._each.call(d,function(b){if(!b.key)return;if(b.value&&b.value.constructor==Array){var c=b.value.compact();if(c.length<2)b.value=c.reduce();else{key=encodeURIComponent(b.key);c.each(function(a){a=a!=undefined?encodeURIComponent(a):'';e.push(key+'='+encodeURIComponent(a))});return}}if(b.value==undefined)b[1]='';e.push(b.map(encodeURIComponent).join('='))});return e.join('&')}});Object.extend(Hash.prototype,Enumerable);Object.extend(Hash.prototype,{_each:function(a){for(var b in this){var c=this[b];if(c&&c==Hash.prototype[b])continue;var d=[b,c];d.key=b;d.value=c;a(d)}},keys:function(){return this.pluck('key')},values:function(){return 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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(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(b,c,d,f){this.each(function(a){if(typeof a[b]=='function'){try{a[b].apply(a,[c,d,f])}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(a){this.options={method:'post',asynchronous:true,contentType:'application/x-www-form-urlencoded',encoding:'UTF-8',parameters:''};Object.extend(this.options,a||{});this.options.method=this.options.method.toLowerCase();if(typeof this.options.parameters=='string')this.options.parameters=this.options.parameters.toQueryParams()}};Ajax.Request=Class.create();Ajax.Request.Events=['Uninitialized','Loading','Loaded','Interactive','Complete'];Ajax.Request.prototype=Object.extend(new Ajax.Base(),{_complete:false,initialize:function(a,b){this.transport=Ajax.getTransport();this.setOptions(b);this.request(a)},request:function(a){this.url=a;this.method=this.options.method;var b=this.options.parameters;if(!['get','post'].include(this.method)){b['_method']=this.method;this.method='post'}b=Hash.toQueryString(b);if(b&&/Konqueror|Safari|KHTML/.test(navigator.userAgent))b+='&_=';if(this.method=='get'&&b)this.url+=(this.url.indexOf('?')>-1?'&':'?')+b;try{Ajax.Responders.dispatch('onCreate',this,this.transport);this.transport.open(this.method.toUpperCase(),this.url,this.options.asynchronous);if(this.options.asynchronous)setTimeout(function(){this.respondToReadyState(1)}.bind(this),10);this.transport.onreadystatechange=this.onStateChange.bind(this);this.setRequestHeaders();var c=this.method=='post'?(this.options.postBody||b):null;this.transport.send(c);if(!this.options.asynchronous&&this.transport.overrideMimeType)this.onStateChange()}catch(e){this.dispatchException(e)}},onStateChange:function(){var a=this.transport.readyState;if(a>1&&!((a==4)&&this._complete))this.respondToReadyState(this.transport.readyState)},setRequestHeaders:function(){var b={'X-Requested-With':'XMLHttpRequest','X-Prototype-Version':Prototype.Version,'Accept':'text/javascript, text/html, application/xml, text/xml, */*'};if(this.method=='post'){b['Content-type']=this.options.contentType+(this.options.encoding?'; charset='+this.options.encoding:'');if(this.transport.overrideMimeType&&(navigator.userAgent.match(/Gecko\/(\d{4})/)||[0,2005])[1]<2005)b['Connection']='close'}if(typeof this.options.requestHeaders=='object'){var c=this.options.requestHeaders;if(typeof c.push=='function')for(var i=0,length=c.length;i<length;i+=2)b[c[i]]=c[i+1];else $H(c).each(function(a){b[a.key]=a.value})}for(var d in b)this.transport.setRequestHeader(d,b[d])},success:function(){return!this.transport.status||(this.transport.status>=200&&this.transport.status<300)},respondToReadyState:function(a){var b=Ajax.Request.Events[a];var c=this.transport,json=this.evalJSON();if(b=='Complete'){try{this._complete=true;(this.options['on'+this.transport.status]||this.options['on'+(this.success()?'Success':'Failure')]||Prototype.emptyFunction)(c,json)}catch(e){this.dispatchException(e)}if((this.getHeader('Content-type')||'text/javascript').strip().match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i))this.evalResponse()}try{(this.options['on'+b]||Prototype.emptyFunction)(c,json);Ajax.Responders.dispatch('on'+b,this,c,json)}catch(e){this.dispatchException(e)}if(b=='Complete'){this.transport.onreadystatechange=Prototype.emptyFunction}},getHeader:function(a){try{return this.transport.getResponseHeader(a)}catch(e){return null}},evalJSON:function(){try{var a=this.getHeader('X-JSON');return a?eval('('+a+')'):null}catch(e){return null}},evalResponse:function(){try{return 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a.update(b)}if(this.success()){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.options.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*1000)},onTimerEvent:function(){this.updater=new Ajax.Updater(this.container,this.url,this.options)}});function $(a){if(arguments.length>1){for(var i=0,elements=[],length=arguments.length;i<length;i++)elements.push($(arguments[i]));return elements}if(typeof a=='string')a=document.getElementById(a);return Element.extend(a)}if(Prototype.BrowserFeatures.XPath){document._getElementsByXPath=function(a,b){var c=[];var d=document.evaluate(a,$(b)||document,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);for(var i=0,length=d.snapshotLength;i<length;i++)c.push(d.snapshotItem(i));return c}}document.getElementsByClassName=function(a,b){if(Prototype.BrowserFeatures.XPath){var q=".//*[contains(concat(' ', @class, ' '), ' "+a+" ')]";return document._getElementsByXPath(q,b)}else{var c=($(b)||document.body).getElementsByTagName('*');var d=[],child;for(var i=0,length=c.length;i<length;i++){child=c[i];if(Element.hasClassName(child,a))d.push(Element.extend(child))}return d}};if(!window.Element)var Element=new Object();Element.extend=function(a){if(!a||_nativeExtensions||a.nodeType==3)return a;if(!a._extended&&a.tagName&&a!=window){var b=Object.clone(Element.Methods),cache=Element.extend.cache;if(a.tagName=='FORM')Object.extend(b,Form.Methods);if(['INPUT','TEXTAREA','SELECT'].include(a.tagName))Object.extend(b,Form.Element.Methods);Object.extend(b,Element.Methods.Simulated);for(var c in b){var d=b[c];if(typeof d=='function'&&!(c in a))a[c]=cache.findOrStore(d)}}a._extended=true;return a};Element.extend.cache={findOrStore:function(a){return this[a]=this[a]||function(){return a.apply(null,[this].concat($A(arguments)))}}};Element.Methods={visible:function(a){return $(a).style.display!='none'},toggle:function(a){a=$(a);Element[Element.visible(a)?'hide':'show'](a);return a},hide:function(a){$(a).style.display='none';return a},show:function(a){$(a).style.display='';return a},remove:function(a){a=$(a);a.parentNode.removeChild(a);return a},update:function(a,b){b=typeof 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$A($(a).getElementsByTagName('*'))},immediateDescendants:function(a){if(!(a=$(a).firstChild))return[];while(a&&a.nodeType!=1)a=a.nextSibling;if(a)return[a].concat($(a).nextSiblings());return[]},previousSiblings:function(a){return $(a).recursivelyCollect('previousSibling')},nextSiblings:function(a){return $(a).recursivelyCollect('nextSibling')},siblings:function(a){a=$(a);return a.previousSiblings().reverse().concat(a.nextSiblings())},match:function(a,b){if(typeof b=='string')b=new Selector(b);return b.match($(a))},up:function(a,b,c){return Selector.findElement($(a).ancestors(),b,c)},down:function(a,b,c){return Selector.findElement($(a).descendants(),b,c)},previous:function(a,b,c){return Selector.findElement($(a).previousSiblings(),b,c)},next:function(a,b,c){return Selector.findElement($(a).nextSiblings(),b,c)},getElementsBySelector:function(){var a=$A(arguments),element=$(a.shift());return Selector.findChildElements(element,a)},getElementsByClassName:function(a,b){return document.getElementsByClassName(b,a)},readAttribute:function(a,b){a=$(a);if(document.all&&!window.opera){var t=Element._attributeTranslations;if(t.values[b])return t.values[b](a,b);if(t.names[b])b=t.names[b];var c=a.attributes[b];if(c)return c.nodeValue}return a.getAttribute(b)},getHeight:function(a){return $(a).getDimensions().height},getWidth:function(a){return $(a).getDimensions().width},classNames:function(a){return new Element.ClassNames(a)},hasClassName:function(a,b){if(!(a=$(a)))return;var c=a.className;if(c.length==0)return false;if(c==b||c.match(new RegExp("(^|\\s)"+b+"(\\s|$)")))return true;return false},addClassName:function(a,b){if(!(a=$(a)))return;Element.classNames(a).add(b);return a},removeClassName:function(a,b){if(!(a=$(a)))return;Element.classNames(a).remove(b);return a},toggleClassName:function(a,b){if(!(a=$(a)))return;Element.classNames(a)[a.hasClassName(b)?'remove':'add'](b);return a},observe:function(){Event.observe.apply(Event,arguments);return $A(arguments).first()},stopObserving:function(){Event.stopObserving.apply(Event,arguments);return $A(arguments).first()},cleanWhitespace:function(a){a=$(a);var b=a.firstChild;while(b){var c=b.nextSibling;if(b.nodeType==3&&!/\S/.test(b.nodeValue))a.removeChild(b);b=c}return a},empty:function(a){return $(a).innerHTML.match(/^\s*$/)},descendantOf:function(a,b){a=$(a),b=$(b);while(a=a.parentNode)if(a==b)return true;return false},scrollTo:function(a){a=$(a);var b=Position.cumulativeOffset(a);window.scrollTo(b[0],b[1]);return a},getStyle:function(a,b){a=$(a);if(['float','cssFloat'].include(b))b=(typeof a.style.styleFloat!='undefined'?'styleFloat':'cssFloat');b=b.camelize();var c=a.style[b];if(!c){if(document.defaultView&&document.defaultView.getComputedStyle){var d=document.defaultView.getComputedStyle(a,null);c=d?d[b]:null}else if(a.currentStyle){c=a.currentStyle[b]}}if((c=='auto')&&['width','height'].include(b)&&(a.getStyle('display')!='none'))c=a['offset'+b.capitalize()]+'px';if(window.opera&&['left','top','right','bottom'].include(b))if(Element.getStyle(a,'position')=='static')c='auto';if(b=='opacity'){if(c)return parseFloat(c);if(c=(a.getStyle('filter')||'').match(/alpha\(opacity=(.*)\)/))if(c[1])return parseFloat(c[1])/100;return 1.0}return c=='auto'?null:c},setStyle:function(a,b){a=$(a);for(var c in b){var d=b[c];if(c=='opacity'){if(d==1){d=(/Gecko/.test(navigator.userAgent)&&!/Konqueror|Safari|KHTML/.test(navigator.userAgent))?0.999999:1.0;if(/MSIE/.test(navigator.userAgent)&&!window.opera)a.style.filter=a.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'')}else if(d==''){if(/MSIE/.test(navigator.userAgent)&&!window.opera)a.style.filter=a.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'')}else{if(d<0.00001)d=0;if(/MSIE/.test(navigator.userAgent)&&!window.opera)a.style.filter=a.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'')+'alpha(opacity='+d*100+')'}}else if(['float','cssFloat'].include(c))c=(typeof a.style.styleFloat!='undefined')?'styleFloat':'cssFloat';a.style[c.camelize()]=d}return a},getDimensions:function(a){a=$(a);var b=$(a).getStyle('display');if(b!='none'&&b!=null)return{width:a.offsetWidth,height:a.offsetHeight};var c=a.style;var d=c.visibility;var e=c.position;var f=c.display;c.visibility='hidden';c.position='absolute';c.display='block';var g=a.clientWidth;var h=a.clientHeight;c.display=f;c.position=e;c.visibility=d;return{width:g,height:h}},makePositioned:function(a){a=$(a);var b=Element.getStyle(a,'position');if(b=='static'||!b){a._madePositioned=true;a.style.position='relative';if(window.opera){a.style.top=0;a.style.left=0}}return a},undoPositioned:function(a){a=$(a);if(a._madePositioned){a._madePositioned=undefined;a.style.position=a.style.top=a.style.left=a.style.bottom=a.style.right=''}return a},makeClipping:function(a){a=$(a);if(a._overflow)return a;a._overflow=a.style.overflow||'auto';if((Element.getStyle(a,'overflow')||'visible')!='hidden')a.style.overflow='hidden';return a},undoClipping:function(a){a=$(a);if(!a._overflow)return a;a.style.overflow=a._overflow=='auto'?'':a._overflow;a._overflow=null;return a}};Object.extend(Element.Methods,{childOf:Element.Methods.descendantOf});Element._attributeTranslations={};Element._attributeTranslations.names={colspan:"colSpan",rowspan:"rowSpan",valign:"vAlign",datetime:"dateTime",accesskey:"accessKey",tabindex:"tabIndex",enctype:"encType",maxlength:"maxLength",readonly:"readOnly",longdesc:"longDesc"};Element._attributeTranslations.values={_getAttr:function(a,b){return a.getAttribute(b,2)},_flag:function(a,b){return $(a).hasAttribute(b)?b:null},style:function(a){return a.style.cssText.toLowerCase()},title:function(a){var b=a.getAttributeNode('title');return b.specified?b.nodeValue:null}};Object.extend(Element._attributeTranslations.values,{href:Element._attributeTranslations.values._getAttr,src:Element._attributeTranslations.values._getAttr,disabled:Element._attributeTranslations.values._flag,checked:Element._attributeTranslations.values._flag,readonly:Element._attributeTranslations.values._flag,multiple:Element._attributeTranslations.values._flag});Element.Methods.Simulated={hasAttribute:function(a,b){var t=Element._attributeTranslations;b=t.names[b]||b;return $(a).getAttributeNode(b).specified}};if(document.all&&!window.opera){Element.Methods.update=function(b,c){b=$(b);c=typeof c=='undefined'?'':c.toString();var d=b.tagName.toUpperCase();if(['THEAD','TBODY','TR','TD'].include(d)){var e=document.createElement('div');switch(d){case'THEAD':case'TBODY':e.innerHTML='<table><tbody>'+c.stripScripts()+'</tbody></table>';depth=2;break;case'TR':e.innerHTML='<table><tbody><tr>'+c.stripScripts()+'</tr></tbody></table>';depth=3;break;case'TD':e.innerHTML='<table><tbody><tr><td>'+c.stripScripts()+'</td></tr></tbody></table>';depth=4}$A(b.childNodes).each(function(a){b.removeChild(a)});depth.times(function(){e=e.firstChild});$A(e.childNodes).each(function(a){b.appendChild(a)})}else{b.innerHTML=c.stripScripts()}setTimeout(function(){c.evalScripts()},10);return b}};Object.extend(Element,Element.Methods);var _nativeExtensions=false;if(/Konqueror|Safari|KHTML/.test(navigator.userAgent))['','Form','Input','TextArea','Select'].each(function(a){var b='HTML'+a+'Element';if(window[b])return;var c=window[b]={};c.prototype=document.createElement(a?a.toLowerCase():'div').__proto__});Element.addMethods=function(g){Object.extend(Element.Methods,g||{});function copy(a,b,c){c=c||false;var d=Element.extend.cache;for(var e in a){var f=a[e];if(!c||!(e in b))b[e]=d.findOrStore(f)}}if(typeof HTMLElement!='undefined'){copy(Element.Methods,HTMLElement.prototype);copy(Element.Methods.Simulated,HTMLElement.prototype,true);copy(Form.Methods,HTMLFormElement.prototype);[HTMLInputElement,HTMLTextAreaElement,HTMLSelectElement].each(function(a){copy(Form.Element.Methods,a.prototype)});_nativeExtensions=true}};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(e){var c=this.element.tagName.toUpperCase();if(['TBODY','TR'].include(c)){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(){b.evalScripts()},10)},contentFromAnonymousTable:function(){var a=document.createElement('div');a.innerHTML='<table><tbody>'+this.content+'</tbody></table>';return $A(a.childNodes[0].childNodes[0].childNodes)}};var Insertion=new Object();Insertion.Before=Class.create();Insertion.Before.prototype=Object.extend(new Abstract.Insertion('beforeBegin'),{initializeRange:function(){this.range.setStartBefore(this.element)},insertContent:function(b){b.each((function(a){this.element.parentNode.insertBefore(a,this.element)}).bind(this))}});Insertion.Top=Class.create();Insertion.Top.prototype=Object.extend(new Abstract.Insertion('afterBegin'),{initializeRange:function(){this.range.selectNodeContents(this.element);this.range.collapse(true)},insertContent:function(b){b.reverse(false).each((function(a){this.element.insertBefore(a,this.element.firstChild)}).bind(this))}});Insertion.Bottom=Class.create();Insertion.Bottom.prototype=Object.extend(new Abstract.Insertion('beforeEnd'),{initializeRange:function(){this.range.selectNodeContents(this.element);this.range.collapse(this.element)},insertContent:function(b){b.each((function(a){this.element.appendChild(a)}).bind(this))}});Insertion.After=Class.create();Insertion.After.prototype=Object.extend(new Abstract.Insertion('afterEnd'),{initializeRange:function(){this.range.setStartAfter(this.element)},insertContent:function(b){b.each((function(a){this.element.parentNode.insertBefore(a,this.element.nextSibling)}).bind(this))}});Element.ClassNames=Class.create();Element.ClassNames.prototype={initialize:function(a){this.element=$(a)},_each:function(b){this.element.className.split(/\s+/).select(function(a){return a.length>0})._each(b)},set:function(a){this.element.className=a},add:function(a){if(this.include(a))return;this.set($A(this).concat(a).join(' '))},remove:function(a){if(!this.include(a))return;this.set($A(this).without(a).join(' '))},toString:function(){return $A(this).join(' ')}};Object.extend(Element.ClassNames.prototype,Enumerable);var Selector=Class.create();Selector.prototype={initialize:function(a){this.params={classNames:[]};this.expression=a.toString().strip();this.parseExpression();this.compileMatcher()},parseExpression:function(){function abort(a){throw'Parse error in selector: '+a;}if(this.expression=='')abort('empty expression');var b=this.params,expr=this.expression,match,modifier,clause,rest;while(match=expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)){b.attributes=b.attributes||[];b.attributes.push({name:match[2],operator:match[3],value:match[4]||match[5]||''});expr=match[1]}if(expr=='*')return this.params.wildcard=true;while(match=expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)){modifier=match[1],clause=match[2],rest=match[3];switch(modifier){case'#':b.id=clause;break;case'.':b.classNames.push(clause);break;case'':case undefined:b.tagName=clause.toUpperCase();break;default:abort(expr.inspect())}expr=rest}if(expr.length>0)abort(expr.inspect())},buildMatchExpression:function(){var e=this.params,conditions=[],clause;if(e.wildcard)conditions.push('true');if(clause=e.id)conditions.push('element.readAttribute("id") == '+clause.inspect());if(clause=e.tagName)conditions.push('element.tagName.toUpperCase() == '+clause.inspect());if((clause=e.classNames).length>0)for(var i=0,length=clause.length;i<length;i++)conditions.push('element.hasClassName('+clause[i].inspect()+')');if(clause=e.attributes){clause.each(function(b){var c='element.readAttribute('+b.name.inspect()+')';var d=function(a){return c+' && '+c+'.split('+a.inspect()+')'};switch(b.operator){case'=':conditions.push(c+' == '+b.value.inspect());break;case'~=':conditions.push(d(' ')+'.include('+b.value.inspect()+')');break;case'|=':conditions.push(d('-')+'.first().toUpperCase() == '+b.value.toUpperCase().inspect());break;case'!=':conditions.push(c+' != '+b.value.inspect());break;case'':case undefined:conditions.push('element.hasAttribute('+b.name.inspect()+')');break;default:throw'Unknown operator '+b.operator+' in selector';}})}return conditions.join(' && ')},compileMatcher:function(){this.match=new Function('element','if(!element.tagName){ return false;} return '+this.buildMatchExpression())},findElements:function(a){var b;if(b=$(this.params.id))if(this.match(b))if(!a||Element.childOf(b,a))return[b];a=(a||document).getElementsByTagName(this.params.tagName||'*');var c=[];for(var i=0,length=a.length;i<length;i++)if(this.match(b=a[i]))c.push(Element.extend(b));return c},toString:function(){return this.expression}};Object.extend(Selector,{matchElements:function(a,b){var c=new Selector(b);return a.select(c.match.bind(c)).map(Element.extend)},findElement:function(a,b,c){if(typeof b=='number')c=b,b=false;return Selector.matchElements(a,b||'*')[c||0]},findChildElements:function(g,h){return h.map(function(f){return f.match(/[^\s"]+(?:"[^"]*"[^\s"]+)*/g).inject([null],function(c,d){var e=new Selector(d);return c.inject([],function(a,b){return a.concat(e.findElements(b||g))})})}).flatten()}});function $$(){return Selector.findChildElements(document,$A(arguments))}var Form={reset:function(a){$(a).reset();return a},serializeElements:function(d,e){var f=d.inject({},function(a,b){if(!b.disabled&&b.name){var c=b.name,value=$(b).getValue();if(value!=undefined){if(a[c]){if(a[c].constructor!=Array)a[c]=[a[c]];a[c].push(value)}else a[c]=value}}return a});return e?f:Hash.toQueryString(f)}};Form.Methods={serialize:function(a,b){return Form.serializeElements(Form.getElements(a),b)},getElements:function(c){return $A($(c).getElementsByTagName('*')).inject([],function(a,b){if(Form.Element.Serializers[b.tagName.toLowerCase()])a.push(Element.extend(b));return a})},getInputs:function(a,b,c){a=$(a);var d=a.getElementsByTagName('input');if(!b&&!c)return $A(d).map(Element.extend);for(var i=0,matchingInputs=[],length=d.length;i<length;i++){var e=d[i];if((b&&e.type!=b)||(c&&e.name!=c))continue;matchingInputs.push(Element.extend(e))}return matchingInputs},disable:function(b){b=$(b);b.getElements().each(function(a){a.blur();a.disabled='true'});return b},enable:function(b){b=$(b);b.getElements().each(function(a){a.disabled=''});return b},findFirstElement:function(b){return $(b).getElements().find(function(a){return a.type!='hidden'&&!a.disabled&&['input','select','textarea'].include(a.tagName.toLowerCase())})},focusFirstElement:function(a){a=$(a);a.findFirstElement().activate();return a}};Object.extend(Form,Form.Methods);Form.Element={focus:function(a){$(a).focus();return a},select:function(a){$(a).select();return a}};Form.Element.Methods={serialize:function(a){a=$(a);if(!a.disabled&&a.name){var b=a.getValue();if(b!=undefined){var c={};c[a.name]=b;return Hash.toQueryString(c)}}return''},getValue:function(a){a=$(a);var b=a.tagName.toLowerCase();return Form.Element.Serializers[b](a)},clear:function(a){$(a).value='';return a},present:function(a){return $(a).value!=''},activate:function(a){a=$(a);a.focus();if(a.select&&(a.tagName.toLowerCase()!='input'||!['button','reset','submit'].include(a.type)))a.select();return a},disable:function(a){a=$(a);a.disabled=true;return a},enable:function(a){a=$(a);a.blur();a.disabled=false;return a}};Object.extend(Form.Element,Form.Element.Methods);var Field=Form.Element;var $F=Form.Element.getValue;Form.Element.Serializers={input:function(a){switch(a.type.toLowerCase()){case'checkbox':case'radio':return Form.Element.Serializers.inputSelector(a);default:return Form.Element.Serializers.textarea(a)}},inputSelector:function(a){return a.checked?a.value:null},textarea:function(a){return a.value},select:function(a){return this[a.type=='select-one'?'selectOne':'selectMany'](a)},selectOne:function(a){var b=a.selectedIndex;return b>=0?this.optionValue(a.options[b]):null},selectMany:function(a){var b,length=a.length;if(!length)return null;for(var i=0,b=[];i<length;i++){var c=a.options[i];if(c.selected)b.push(this.optionValue(c))}return b},optionValue:function(a){return Element.extend(a).hasAttribute('value')?a.value:a.text}};Abstract.TimedObserver=function(){};Abstract.TimedObserver.prototype={initialize:function(a,b,c){this.frequency=b;this.element=$(a);this.callback=c;this.lastValue=this.getValue();this.registerCallback()},registerCallback:function(){setInterval(this.onTimerEvent.bind(this),this.frequency*1000)},onTimerEvent:function(){var a=this.getValue();var b=('string'==typeof this.lastValue&&'string'==typeof a?this.lastValue!=a:String(this.lastValue)!=String(a));if(b){this.callback(this.element,a);this.lastValue=a}}};Form.Element.Observer=Class.create();Form.Element.Observer.prototype=Object.extend(new Abstract.TimedObserver(),{getValue:function(){return Form.Element.getValue(this.element)}});Form.Observer=Class.create();Form.Observer.prototype=Object.extend(new Abstract.TimedObserver(),{getValue:function(){return Form.serialize(this.element)}});Abstract.EventObserver=function(){};Abstract.EventObserver.prototype={initialize:function(a,b){this.element=$(a);this.callback=b;this.lastValue=this.getValue();if(this.element.tagName.toLowerCase()=='form')this.registerFormCallbacks();else this.registerCallback(this.element)},onElementEvent:function(){var a=this.getValue();if(this.lastValue!=a){this.callback(this.element,a);this.lastValue=a}},registerFormCallbacks:function(){Form.getElements(this.element).each(this.registerCallback.bind(this))},registerCallback:function(a){if(a.type){switch(a.type.toLowerCase()){case'checkbox':case'radio':Event.observe(a,'click',this.onElementEvent.bind(this));break;default:Event.observe(a,'change',this.onElementEvent.bind(this));break}}}};Form.Element.EventObserver=Class.create();Form.Element.EventObserver.prototype=Object.extend(new Abstract.EventObserver(),{getValue:function(){return Form.Element.getValue(this.element)}});Form.EventObserver=Class.create();Form.EventObserver.prototype=Object.extend(new Abstract.EventObserver(),{getValue:function(){return Form.serialize(this.element)}});if(!window.Event){var Event=new Object()}Object.extend(Event,{KEY_BACKSPACE:8,KEY_TAB:9,KEY_RETURN:13,KEY_ESC:27,KEY_LEFT:37,KEY_UP:38,KEY_RIGHT:39,KEY_DOWN:40,KEY_DELETE:46,KEY_HOME:36,KEY_END:35,KEY_PAGEUP:33,KEY_PAGEDOWN:34,element:function(a){return a.target||a.srcElement},isLeftClick:function(a){return(((a.which)&&(a.which==1))||((a.button)&&(a.button==1)))},pointerX:function(a){return a.pageX||(a.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft))},pointerY:function(a){return a.pageY||(a.clientY+(document.documentElement.scrollTop||document.body.scrollTop))},stop:function(a){if(a.preventDefault){a.preventDefault();a.stopPropagation()}else{a.returnValue=false;a.cancelBubble=true}},findElement:function(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 i=0,length=Event.observers.length;i<length;i++){Event.stopObserving.apply(this,Event.observers[i]);Event.observers[i][0]=null}Event.observers=false},observe:function(a,b,c,d){a=$(a);d=d||false;if(b=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||a.attachEvent))b='keydown';Event._observeAndCache(a,b,c,d)},stopObserving:function(a,b,c,d){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){try{a.detachEvent('on'+b,c)}catch(e){}}}});if(navigator.appVersion.match(/\bMSIE\b/))Event.observe(window,'unload',Event.unloadCache,false);var Position={includeScrollOffsets:false,prepare:function(){this.deltaX=window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft||0;this.deltaY=window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0},realOffset:function(a){var b=0,valueL=0;do{b+=a.scrollTop||0;valueL+=a.scrollLeft||0;a=a.parentNode}while(a);return[valueL,b]},cumulativeOffset:function(a){var b=0,valueL=0;do{b+=a.offsetTop||0;valueL+=a.offsetLeft||0;a=a.offsetParent}while(a);return[valueL,b]},positionedOffset:function(a){var b=0,valueL=0;do{b+=a.offsetTop||0;valueL+=a.offsetLeft||0;a=a.offsetParent;if(a){if(a.tagName=='BODY')break;var p=Element.getStyle(a,'position');if(p=='relative'||p=='absolute')break}}while(a);return[valueL,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},page:function(a){var b=0,valueL=0;var c=a;do{b+=c.offsetTop||0;valueL+=c.offsetLeft||0;if(c.offsetParent==document.body)if(Element.getStyle(c,'position')=='absolute')break}while(c=c.offsetParent);c=a;do{if(!window.opera||c.tagName=='BODY'){b-=c.scrollTop||0;valueL-=c.scrollLeft||0}}while(c=c.parentNode);return[valueL,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 p=Position.page(a);b=$(b);var d=[0,0];var e=null;if(Element.getStyle(b,'position')=='absolute'){e=Position.offsetParent(b);d=Position.page(e)}if(e==document.body){d[0]-=document.body.offsetLeft;d[1]-=document.body.offsetTop}if(c.setLeft)b.style.left=(p[0]-d[0]+c.offsetLeft)+'px';if(c.setTop)b.style.top=(p[1]-d[1]+c.offsetTop)+'px';if(c.setWidth)b.style.width=a.offsetWidth+'px';if(c.setHeight)b.style.height=a.offsetHeight+'px'},absolutize:function(a){a=$(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,valueL=0;do{b+=a.offsetTop||0;valueL+=a.offsetLeft||0;if(a.offsetParent==document.body)if(Element.getStyle(a,'position')=='absolute')break;a=a.offsetParent}while(a);return[valueL,b]}}Element.addMethods();