asp.net中倒计时自动跳转页面的实现方法(使用javascript)

%@ Page Language="C#" AutoEventWireup="true" CodeFile="LoginTiao.aspx.cs" Inherits="LoginTiao" %>

!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

html xmlns="http://www.w3.org/1999/xhtml" >
head id="Head1" runat="server">
    title>跳转页面/title>
    script type="text/javascript">
        var i = 5;
        window.onload=function page_cg()
        {          
            document.getElementById("time").innerText = i;
            i--;
            if(i==0)
            {
                window.location.href("XXXXX/Home.aspx");
            }
            setTimeout(page_cg,1000);
        }
    /script>

/head>
body>
    form id="form1" runat="server">
    div style="font-size:small;">
        密码修改成功，请牢记！
        br />
秒后自动跳到系统a href="XXXXX/Home.aspx">首页面/a>...还剩span id="time" style="font-weight:bold;color: blue">5/span>秒！
        br />
        或者返回a href="Login.aspx">登陆页面/a>...
    /div>
    /form>
/body>
/html>