function addEvent(element,type,handler){if(element.addEventListener){element.addEventListener(type,handler,false)}else{if(!handler.$$guid)handler.$$guid=addEvent.guid++;if(!element.events)element.events={};var handlers=element.events[type];if(!handlers){handlers=element.events[type]={};if(element["on"+type]){handlers[0]=element["on"+type]}}handlers[handler.$$guid]=handler;element["on"+type]=handleEvent}};addEvent.guid=1;function removeEvent(element,type,handler){if(element.removeEventListener){element.removeEventListener(type,handler,false)}else{if(element.events&&element.events[type]){delete element.events[type][handler.$$guid]}}};function handleEvent(event){var returnValue=true;event=event||fixEvent(((this.ownerDocument||this.document||this).parentWindow||window).event);var handlers=this.events[event.type];for(var i in handlers){this.$$handleEvent=handlers[i];if(this.$$handleEvent(event)===false){returnValue=false}}return returnValue};function fixEvent(event){event.preventDefault=fixEvent.preventDefault;event.stopPropagation=fixEvent.stopPropagation;return event};fixEvent.preventDefault=function(){this.returnValue=false};fixEvent.stopPropagation=function(){this.cancelBubble=true};