简单的实现图片切换的JS

变量和函数的定义放在header部分:

<script>
var curIndex=0;
var timeInterval=5000;
var arr=new Array();
arr[0]="images/con6.jpg";
arr[1]="images/con6_2.jpg";

function changeImg()
{
var obj=document.getElementById("meiniu");
if (curIndex==arr.length-1)
{
curIndex=0;
}
else
{
curIndex+=1;
}
obj.src=arr[curIndex];
}
</script>

调用放在body之间:

<a href="javascript:void(0)" onclick="swtClick(this)" target="_blank" ><img id="meiniu" src="images/con6.jpg" width="100%" border="0" /></a>
<script type="text/javascript">
<!--
setInterval(changeImg,timeInterval);
//-->
</script>