JavaScript 代码如下：
<span id="time" style="background:red">10</span>秒钟后跳回主页！如果不跳转请点击
<script language="JavaScript1.2" type="text/javascript">
function delayURL(url, time) {
var delay= document.getElementById("time").innerHTML;
if(delay>0){
delay--;
document.getElementById("time").innerHTML=delay;
}else{
window.top.location.href=url;
}
setTimeout("delayURL('" + url + "')", 1000);
}
</script>
<a href="index.jsp">这里</a>
<script type="text/javascript">
delayURL("index.jsp",10000);
</script>
