1 var eventUtil={
2 addHandler:function(element,type,handler){
3 if(element.addEventListener){//Dom2级事件处理程序
4 element.addEventListener(type,handler,false);
5 }else if(element.attachEvent){//IE事件处理程序
6 element.attachEvent("on"+type,handler);
7 }else{
8 element["on"+type];//Dom0级事件处理程序
9 }
10 },
11 removeHandler:function(element,type,handler){
12 if(element.removeEventListener){
13 element.removeEventListener(type,handler,false);
14 }else if(element.attachEvent){
15 element.detachEvent("on"+type,handler);
16 }else{
17 element["on"+type]=null;
18 }
19 }
20 };