js倒计时5秒跳转页面（js倒计时60秒后停止）

<!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 runat="server">
<title>setTimeout</title>
</head>
<body>
<form runat="server">
<div >
</div>
</form>
</body>
</html>
<script type="text/javascript">
//设定倒数秒数
var t = 10;
//显示倒数秒数
function showTime(){
t -= 1;
document.getElementById('div1').innerHTML= t;
if(t==0){
location.href='http://www.baidu.com';
}
//每秒执行一次,showTime()
setTimeout("showTime()",1000);
}
//执行showTime()
showTime();
</script>