网页图片自动轮换

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 7 <title>Insert title here</title>
 8 <script type="text/javascript" src=js/jquery-1.7.2.min.js></script>
 9 <script type="text/javascript" src=js/jquery.easyui.min.js></script>
10 <script type="text/javascript">
11     function reloadImage() {
12         document.getElementById('btn').disabled = ture;
13         document.getElementById('identity').src = 'rdentity.do?ts='
14                 + new Date().getTime();
15     }
16     
17 
18     var curIndex=0;
19     //时间间隔(单位毫秒)，每秒钟显示一张，数组共有5张图片放在Photos文件夹下。
20     var timeInterval=1000;
21     var arr=new Array();
22     arr[0]="images/main1.png";
23     arr[1]="images/main2.jpg";
24     arr[2]="images/main3.jpg";
25     
26     setInterval(changeImg,timeInterval);
27     function changeImg()
28     {
29         var obj=document.getElementById("obj");
30         if (curIndex==arr.length-1) 
31         {
32             curIndex=0;
33         }
34         else
35         {
36             curIndex+=1;
37         }
38         obj.src=arr[curIndex];
39     }
40 </script>
41 </head>
42 <body>
43 
44     <img src="rdentity.do" id="identity" onload="btn.disabled=false;" />
45     <input type="button" value="换个图片" onclick="reloadImage()" id="btn">
46     
47     
48 
49     <img id=obj src ="images/main1.png" width=200 height=150 border =0>
50 </body>
51 </html>
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