五秒后页面自动跳转

 1 <head>
 2 <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
 3 <title>无标题文档</title>
 4 <script type="text/javascript">     
 5    
 6 </script> 
 7 </head>
 8 
 9 <body><span id="jumpTo">5</span>秒后自动跳转到http://www.baidu.com/
10 <script type="text/javascript">
11 function countDown(secs,surl){     
12  //alert(surl);     
13  var jumpTo = document.getElementById('jumpTo');
14  jumpTo.innerHTML=secs;  
15  if(--secs>0){     
16      setTimeout("countDown("+secs+",'"+surl+"')",1000);     
17      }     
18  else{       
19      location.href=surl;     
20      }     
21  }  
22 
23 
24 countDown(5,'http://www.baidu.com/');
25 </script>  
26 </body>
27 </html>