<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>图片的切换</title>
<script language =javascript >
var curIndex=0;
//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。
var timeInterval=1000;
var arr=new Array();
arr[0]="photos/1.jpg";
arr[1]="photos/2.jpg";
arr[2]="photos/3.jpg";
arr[3]="photos/4.jpg";
arr[4]="photos/5.jpg";
arr[5]="photos/6.jpg";
setInterval(changeImg,timeInterval);
function changeImg()
{
var obj=document.getElementById("obj");
if (curIndex==arr.length-1)
{
curIndex=0;
}
else
{
curIndex+=1;
}
obj.src=arr[curIndex];
}
</script>
<script language =javascript >
var curIndex=0;
//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。
var timeInterval=1000;
var arr=new Array();
arr[0]="photos/6.jpg";
arr[1]="photos/5.jpg";
arr[2]="photos/4.jpg";
arr[3]="photos/3.jpg";
arr[4]="photos/2.jpg";
arr[5]="photos/1.jpg";
setInterval(changeImg,timeInterval);
function changeImg()
{
var obj=document.getElementById("occ");
if (curIndex==arr.length-1)
{
curIndex=0;
}
else
{
curIndex+=1;
}
obj.src=arr[curIndex];
}
</script>
</head>
<body>
<div>
<div>
<img id=obj src ="photos/1.jpg" width=300 height=300 border =0>
<img id=occ src ="photos/6.jpg" width=300 height=300 border =0>
</div>
</div>
</body>
</html>
原文：http://www.cnblogs.com/feng1234-666/p/7867624.html