javascript 简单倒计时
<html><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>
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