1 <html>
2 <head>
3 <style type='text/css'>
4 div{
5 border:dashed 1px green;
6 width:200px;
7 height:100px;
8 }
9 </style>
10 </head>
11 <body id='mybody'>
12 <div id='divone'>
13 <button id='clickme'>clickme</button>
14 </div>
15 <script language='javascript'>
16 obj('mybody').onclick=fun;
17 obj('clickme').onclick=fun;
18 obj('divone').onclick=fun;
19
20 function obj(str){
21 if(typeof str=='string'){
22 return document.getElementById(str);
23 }
24 }
25 function fun(){
26 //alert(event.srcElement.id);//window.event event.target事件源
27 alert(this.id);//响应的对象
28 }
29 </script>
30 </body>
31 </html>
