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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(B,A){this.transport=Ajax.getTransport();this.setOptions(A);this.request(B)},request:function(B){var C=this.options.parameters||"";if(C.length>0){C+="&_="}try{if(this.options.method=="get"){B+="?"+C}this.transport.open(this.options.method,B,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 A=this.options.postBody?this.options.postBody:C;this.transport.send(this.options.method=="post"?A:null)}catch(D){}},setRequestHeaders:function(){var B=["X-Requested-With","XMLHttpRequest","X-Prototype-Version",Prototype.Version];if(this.options.method=="post"){B.push("Content-type","application/x-www-form-urlencoded");if(this.transport.overrideMimeType){B.push("Connection","close")}}if(this.options.requestHeaders){B.push.apply(B,this.options.requestHeaders)}for(var A=0;A<B.length;A+=2){this.transport.setRequestHeader(B[A],B[A+1])}},onStateChange:function(){var A=this.transport.readyState;if(A!=1){this.respondToReadyState(this.transport.readyState)}},respondToReadyState:function(A){var 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Ajax.Base(),{initialize:function(A,C,B){this.setOptions(B);this.onComplete=this.options.onComplete;this.frequency=(this.options.frequency||2);this.decay=1;this.updater={};this.container=A;this.url=C;this.start()},start:function(){this.options.onComplete=this.updateComplete.bind(this);this.onTimerEvent()},stop:function(){this.updater.onComplete=undefined;clearTimeout(this.timer);(this.onComplete||Ajax.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)}});document.getElementsByClassName=function(D){var C=document.getElementsByTagName("*")||document.all;var E=new Array();for(var B=0;B<C.length;B++){var G=C[B];var F=G.className.split(" ");for(var 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