js实战之-倒计时

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3 <head>
 4 <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
 5 <title>js-倒计时</title>
 6 </head>
 7 
 8 <body>
 9 
10 <div id="box"></div>
11 
12 <script language="javascript">
13 
14 var timer2=new Date("5/01/2015 00:00:00");
15 var tim_box=document.getElementById("box");
16 var yer,days,hors,miu,sec;
17 function  js(){
18 var timer=new Date();
19  yer=Math.floor((timer2-timer)/(365*24*60*60*1000));
20  days=Math.floor((timer2-timer)/(24*60*60*1000)-(yer*365));
21  hors=Math.floor((timer2-timer)/(1000*60*60)-(days*24)-(yer*365*24));
22  miu=Math.floor((timer2-timer)/(60*1000)-(days*24*60)-(yer*365*24*60)-(hors*60));
23  sec=Math.floor((timer2-timer)/1000-(days*24*60*60)-(yer*365*24*60*60)-(hors*60*60)-(miu*60));
24 tim_box.innerHTML="距离2015年5月1日还有"+yer+"年"+days+"天"+hors+"小时"+miu+"分钟"+sec+"秒";
25 setTimeout("js()",1000);
26 }
27 js();
28 </script>
29 
30 </body>
31 </html>
一个不敬业的前端攻城狮