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<script type='text/javascript'>
var num=6;
function calc(){
if(num>0){
num--;
document.getElementById('second').innerHTML=num;
}else{
location.href='replyMessage.jsp?messageID="+messageID+"'
}
setTimeout('calc()',1000);
}
</script>
<body onload="calc()">
<div id='second'>5</div>
</body>
<%@ page language="java" pageEncoding="gbk"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script type="text/javascript">
function changeButton(){
//3秒后的定时任务
window.setTimeout("togoto()",3000);
document.getElementById("dis").innerHTML="3秒后自动跳转到登录面";
}
function togoto(){
document.getElementById("dis").innerHTML="";
alert("欢迎转到登录面");
//此处换成连接
//window.location==
}
</script>
</head>
<body>
<div id="dis"></div>
<input type="button" value="测试" onclick="changeButton()"/>
</body>
</html>