var Event=new Native({name:'Event',initialize:function(event,win){win=win||window;var doc=win.document;event=event||win.event;if(event.$extended)return event;this.$extended=true;var type=event.type;var target=event.target||event.srcElement;while(target&&target.nodeType==3)target=target.parentNode;if(type.test(/key/)){var code=event.which||event.keyCode;var key=Event.Keys.keyOf(code);if(type=='keydown'){var fKey=code-111;if(fKey>0&&fKey<13)key='f'+fKey;}
key=key||String.fromCharCode(code).toLowerCase();}else if(type.match(/(click|mouse|menu)/i)){doc=(!doc.compatMode||doc.compatMode=='CSS1Compat')?doc.html:doc.body;var page={x:event.pageX||event.clientX+doc.scrollLeft,y:event.pageY||event.clientY+doc.scrollTop};var client={x:(event.pageX)?event.pageX-win.pageXOffset:event.clientX,y:(event.pageY)?event.pageY-win.pageYOffset:event.clientY};if(type.match(/DOMMouseScroll|mousewheel/)){var wheel=(event.wheelDelta)?event.wheelDelta/120:-(event.detail||0)/3;}
var rightClick=(event.which==3)||(event.button==2);var related=null;if(type.match(/over|out/)){switch(type){case'mouseover':related=event.relatedTarget||event.fromElement;break;case'mouseout':related=event.relatedTarget||event.toElement;}
if(!(function(){while(related&&related.nodeType==3)related=related.parentNode;return true;}).create({attempt:Browser.Engine.gecko})())related=false;}}
return $extend(this,{event:event,type:type,page:page,client:client,rightClick:rightClick,wheel:wheel,relatedTarget:related,target:target,code:code,key:key,shift:event.shiftKey,control:event.ctrlKey,alt:event.altKey,meta:event.metaKey});}});Event.Keys=new Hash({'enter':13,'up':38,'down':40,'left':37,'right':39,'esc':27,'space':32,'backspace':8,'tab':9,'delete':46});Event.implement({stop:function(){return this.stopPropagation().preventDefault();},stopPropagation:function(){if(this.event.stopPropagation)this.event.stopPropagation();else this.event.cancelBubble=true;return this;},preventDefault:function(){if(this.event.preventDefault)this.event.preventDefault();else this.event.returnValue=false;return this;}});