if(tt==0) window.location.href='/';
.tip{font-size:18px;margin:25px 0 25px 5px;*margin:25px 0 25px 5px;}
<TR height=60>
.searchbox{margin:0 0 40px 8px;*margin:0 0 40px 8px;}
<head>
.cl{clear:both;height:0px;line-height:0px;font-size:0px;overflow:hidden;}
.reason li{line-height:24px;height:24px;}
<div id="content">
</li> </ol>
tt=3;
<h2 class="tip" style="padding-left:144px">很抱愧，您要拜候的页面不存在!
</DIV></TD></TR>
colSpan=2></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<li> 2. <b id="tt">3</b>秒后跳转到首页。</li>
</html>