网站404页面3秒后跳到首页代码

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=GBK">

<title>404 Not Found</title>

</head>

<body>

<h1>找不到指定的页面</h1>

<span id="totalSecond">3</span>秒后自动返回

</body>

<script language="javascript" type="text/javascript">

<!--

   var second = document.getElementById('totalSecond').textContent;

   if (navigator.appName.indexOf("Explorer") > -1)  //判断是IE浏览器还是Firefox浏览器,采用相应措施取得秒数

   {

       second = document.getElementById('totalSecond').innerText;

   } else

   {

       second = document.getElementById('totalSecond').textContent;

   }

   setInterval("redirect()", 1000);  //每1秒钟调用redirect()方法一次

   function redirect()

   {

       if (second < 0)

       {

           location.href = 'http://要跳转的网站';

       } else

       {

           if (navigator.appName.indexOf("Explorer") > -1)

           {

               document.getElementById('totalSecond').innerText = second--;

           } else

           {

               document.getElementById('totalSecond').textContent = second--;

           }

       }

   }

-->

</script>

</html></td>

 </tr>

</table>