JS倒计时

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<!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>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>JS倒计时</title>
<style>
.cp_div ul li{ width:60px; float:left;}
</style>
<script language="javascript" type="text/javascript">
var interval = 1000;
function ShowCountDown(year,month,day,divname)
{
var now = new Date();
var endDate = new Date(year, month-1, day);
var leftTime=endDate.getTime()-now.getTime();
var leftsecond = parseInt(leftTime/1000);
var day1=Math.floor(leftsecond/(60*60*24));
var hour=Math.floor((leftsecond-day1*24*60*60)/3600);
var minute=Math.floor((leftsecond-day1*24*60*60-hour*3600)/60);
var second=Math.floor(leftsecond-day1*24*60*60-hour*3600-minute*60);
var cc = document.getElementById(divname);
cc.innerHTML = "脚本之家提示距离"+year+"年"+month+"月"+day+"日还有："+day1+"天"+hour+"小时"+minute+"分"+second+"秒";
//标签DOM操作天、时、分、秒
var cp_day=document.getElementById("cp_day");
var cp_hour=document.getElementById("cp_hour");
var cp_minute=document.getElementById("cp_minute");
var cp_second=document.getElementById("cp_second");
cp_day.innerHTML=day1;
cp_hour.innerHTML=hour;
cp_minute.innerHTML=minute;
cp_second.innerHTML=second;
}
window.setInterval(function(){ShowCountDown(2017,4,20,'divdown1');}, interval);
</script>

</head>

<body>
<div id="divdown1"></div>
<div class="cp_div">
<ul>
<li id="cp_day">1</li>
<li id="cp_hour">2</li>
<li id="cp_minute">3</li>
<li id="cp_second">4</li>
</ul>
</div>

</body>

</html>

代码下载地址：http://download.csdn.net/download/cplvfx/9756605

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