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Enumerable={each:function(B){var A=0;try{this._each(function(D){B(D,A++)})}catch(C){if(C!=$break){throw C}}return this},eachSlice:function(A,C){var B=-A,D=[],E=this.toArray();while((B+=A)<E.length){D.push(E.slice(B,B+A))}return D.map(C)},all:function(A){var B=true;this.each(function(D,C){B=B&&!!(A||Prototype.K)(D,C);if(!B){throw $break}});return B},any:function(A){var B=false;this.each(function(D,C){if(B=!!(A||Prototype.K)(D,C)){throw $break}});return B},collect:function(B){var A=[];this.each(function(D,C){A.push((B||Prototype.K)(D,C))});return A},detect:function(A){var B;this.each(function(D,C){if(A(D,C)){B=D;throw $break}});return B},findAll:function(B){var A=[];this.each(function(D,C){if(B(D,C)){A.push(D)}});return A},grep:function(A,C){var B=[];this.each(function(F,D){var E=F.toString();if(E.match(A)){B.push((C||Prototype.K)(F,D))}});return B},include:function(A){var B=false;this.each(function(C){if(C==A){B=true;throw $break}});return 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C=Object.clone(this.options.parameters);if(!["get","post"].include(this.method)){C._method=this.method;this.method="post"}this.parameters=C;if(C=Hash.toQueryString(C)){if(this.method=="get"){this.url+=(this.url.include("?")?"&":"?")+C}else{if(/Konqueror|Safari|KHTML/.test(navigator.userAgent)){C+="&_="}}}try{if(this.options.onCreate){this.options.onCreate(this.transport)}Ajax.Responders.dispatch("onCreate",this,this.transport);this.transport.open(this.method.toUpperCase(),this.url,this.options.asynchronous);if(this.options.asynchronous){setTimeout(function(){this.respondToReadyState(1)}.bind(this),10)}this.transport.onreadystatechange=this.onStateChange.bind(this);this.setRequestHeaders();this.body=this.method=="post"?(this.options.postBody||C):null;this.transport.send(this.body);if(!this.options.asynchronous&&this.transport.overrideMimeType){this.onStateChange()}}catch(B){this.dispatchException(B)}},onStateChange:function(){var A=this.transport.readyState;if(A>1&&!((A==4)&&this._complete)){this.respondToReadyState(this.transport.readyState)}},setRequestHeaders:function(){var E={"X-Requested-With":"XMLHttpRequest","X-Prototype-Version":Prototype.Version,Accept:"text/javascript, text/html, application/xml, text/xml, */*"};if(this.method=="post"){E["Content-type"]=this.options.contentType+(this.options.encoding?"; charset="+this.options.encoding:"");if(this.transport.overrideMimeType&&(navigator.userAgent.match(/Gecko\/(\d{4})/)||[0,2005])[1]<2005){E.Connection="close"}}if(typeof this.options.requestHeaders=="object"){var B=this.options.requestHeaders;if(typeof B.push=="function"){for(var D=0,A=B.length;D<A;D+=2){E[B[D]]=B[D+1]}}else{$H(B).each(function(F){E[F.key]=F.value})}}for(var C in E){this.transport.setRequestHeader(C,E[C])}},success:function(){return !this.transport.status||(this.transport.status>=200&&this.transport.status<300)},respondToReadyState:function(A){var C=Ajax.Request.Events[A];var F=this.transport,B=this.evalJSON();if(C=="Complete"){try{this._complete=true;(this.options["on"+this.transport.status]||this.options["on"+(this.success()?"Success":"Failure")]||Prototype.emptyFunction)(F,B)}catch(E){this.dispatchException(E)}var D=this.getHeader("Content-type");if(D&&D.strip().match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i)){this.evalResponse()}}try{(this.options["on"+C]||Prototype.emptyFunction)(F,B);Ajax.Responders.dispatch("on"+C,this,F,B)}catch(E){this.dispatchException(E)}if(C=="Complete"){this.transport.onreadystatechange=Prototype.emptyFunction}},getHeader:function(A){try{return this.transport.getResponseHeader(A)}catch(B){return null}},evalJSON:function(){try{var A=this.getHeader("X-JSON");return A?A.evalJSON():null}catch(B){return null}},evalResponse:function(){try{return 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this.options.insertion(A,B)}else{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(C,A,B){this.setOptions(B);this.onComplete=this.options.onComplete;this.frequency=(this.options.frequency||2);this.decay=(this.options.decay||1);this.updater={};this.container=C;this.url=A;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 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