var Core={};if(document.addEventListener)
{Core.addEventListener=function(target,type,listener)
{target.addEventListener(type,listener,false);};Core.removeEventListener=function(target,type,listener)
{target.removeEventListener(type,listener,false);};Core.preventDefault=function(event)
{event.preventDefault();};Core.stopPropagation=function(event)
{event.stopPropagation();};}
else if(document.attachEvent)
{Core.addEventListener=function(target,type,listener)
{if(Core._findListener(target,type,listener)!=-1)return;var listener2=function()
{var event=window.event;if(Function.prototype.call)
{listener.call(target,event);}
else
{target._currentListener=listener;target._currentListener(event)
target._currentListener=null;}};target.attachEvent("on"+type,listener2);var listenerRecord={target:target,type:type,listener:listener,listener2:listener2};var targetDocument=target.document||target;var targetWindow=targetDocument.parentWindow;var listenerId="l"+Core._listenerCounter++;if(!targetWindow._allListeners)targetWindow._allListeners={};targetWindow._allListeners[listenerId]=listenerRecord;if(!target._listeners)target._listeners=[];target._listeners[target._listeners.length]=listenerId;if(!targetWindow._unloadListenerAdded)
{targetWindow._unloadListenerAdded=true;targetWindow.attachEvent("onunload",Core._removeAllListeners);}};Core.removeEventListener=function(target,type,listener)
{var listenerIndex=Core._findListener(target,type,listener);if(listenerIndex==-1)return;var targetDocument=target.document||target;var targetWindow=targetDocument.parentWindow;var listenerId=target._listeners[listenerIndex];var listenerRecord=targetWindow._allListeners[listenerId];target.detachEvent("on"+type,listenerRecord.listener2);target._listeners.splice(listenerIndex,1);delete targetWindow._allListeners[listenerId];};Core.preventDefault=function(event)
{event.returnValue=false;};Core.stopPropagation=function(event)
{event.cancelBubble=true;};Core._findListener=function(target,type,listener)
{var listeners=target._listeners;if(!listeners)return-1;var targetDocument=target.document||target;var targetWindow=targetDocument.parentWindow;for(var i=listeners.length-1;i>=0;i--)
{var listenerId=listeners[i];var listenerRecord=targetWindow._allListeners[listenerId];if(listenerRecord.type==type&&listenerRecord.listener==listener)
{return i;}}
return-1;};Core._removeAllListeners=function()
{var targetWindow=this;for(id in targetWindow._allListeners)
{var listenerRecord=targetWindow._allListeners[id];listenerRecord.target.detachEvent("on"+listenerRecord.type,listenerRecord.listener2);delete targetWindow._allListeners[id];}};Core._listenerCounter=0;}
Core.addClass=function(target,theClass)
{if(!Core.hasClass(target,theClass))
{if(target.className=="")
{target.className=theClass;}
else
{target.className+=" "+theClass;}}};Core.getElementsByClass=function(theClass)
{var elementArray=[];if(document.all)
{elementArray=document.all;}
else
{elementArray=document.getElementsByTagName("*");}
var matchedArray=[];var pattern=new RegExp("(^| )"+theClass+"( |$)");for(var i=0;i<elementArray.length;i++)
{if(pattern.test(elementArray[i].className))
{matchedArray[matchedArray.length]=elementArray[i];}}
return matchedArray;};Core.hasClass=function(target,theClass)
{var pattern=new RegExp("(^| )"+theClass+"( |$)");if(pattern.test(target.className))
{return true;}
return false;};Core.removeClass=function(target,theClass)
{var pattern=new RegExp("(^| )"+theClass+"( |$)");target.className=target.className.replace(pattern,"$1");target.className=target.className.replace(/ $/,"");};Core.getComputedStyle=function(element,styleProperty)
{var computedStyle=null;if(typeof element.currentStyle!="undefined")
{computedStyle=element.currentStyle;}
else
{computedStyle=document.defaultView.getComputedStyle(element,null);}
return computedStyle[styleProperty];};Core.start=function(runnable)
{Core.addEventListener(window,"load",runnable.init);};