兼容IE浏览器的事件程序

 1 // 扩浏览器的事件添加删除程序
 2 var EventUtil = {
 3 addHandler: function(element,type,handler){
 4 if(element.addEventListener){
 5 element.addEventListener(type,handler,false);
 6 }else if(element.attachEvent){
 7 element.addachEvent("on"+type,handler);
 8 }else{
 9 element["on"+type]=handler;
10 }
11 },
12 removeHandler:function(element,type,handler){
13 if(element.removeEventListener){
14 element.removeEventListener(type, handler,false);
15 }else if(element.detachEvent){
16 element.detach("on"+type,handler);
17 }else{
18 element["on"+type]=null;
19 }
20 },
21 getEvent:function(event){
22 return event ? event : window.event;
23 },
24 getTarget:function(event){
25 return event.target ? event.target : event.srcElement;
26 },
27 preventDefault:function(event){
28 if(event.preventDefault()){
29 event.preventDefault();
30 }else{
31 event.returnValue=false;
32 }
33 },
34 stopPropagation: function(event){
35 if (event.stopPropagation){
36 event.stopPropagation();
37 } else {
38 event.cancelBubble = true;
39 }
40 }
41 }