javascript秒数倒计时自动跳转代码

<html> <head><title></title> <script language='javascript' type='text/javascript'> var secs =5; //倒计时的秒数 var URL ; function Load(url){ URL =url; for(var i=secs;i>=0;i--) { window.setTimeout('doUpdate(' + i + ')', (secs-i) * 1000); } } function doUpdate(num) { document.getElementById('ShowDiv').innerHTML = '将在'+num+'秒后自动跳转到 脚本之家' ; if(num == 0) { window.location=URL; } } </script> </head> <body> <script language="javascript"> Load("//www.gxlcms.com"); </script> </body> </html>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]