js 简单倒计时
<html>
<head>
<meta http-equiv="content-type" content="text/html" charset="utf-8">
</head>
<body>
页面将在<span id='remaining_time'></span>秒后自动跳转...
</body>
<script type="text/javascript">
var remaining_time = document.getElementById('remaining_time');
var t = 6;
function changeTime(){
t--;
remaining_time.innerHTML=" "+t+" ";
if(t==0){
window.location.href = 'http://www.baidu.com';
return;
}
setTimeout('changeTime()', 1000);
}
changeTime();
</script>
</html>
