<!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=gbk" /> 
<title>Jquery实现倒计时效果</title> 
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
 
<script type="text/javascript"> 
 var SysSecond; 
 var InterValObj; 
  
 $(document).ready(function() { 
  SysSecond = parseInt($("#remainSeconds").html()); //这里获取倒计时的起始时间 
  InterValObj = window.setInterval(SetRemainTime, 1000); //间隔函数，1秒执行 
 }); 
 
 //将时间减去1秒，计算天、时、分、秒 
 function SetRemainTime() { 
  if (SysSecond > 0) { 
   SysSecond = SysSecond - 1; 
   var second = Math.floor(SysSecond % 60);             // 计算秒     
   var minite = Math.floor((SysSecond / 60) % 60);      //计算分 
   var hour = Math.floor((SysSecond / 3600) % 24);      //计算小时 
   var day = Math.floor((SysSecond / 3600) / 24);        //计算天 
 
   $("#remainTime").html(day + "天" + hour + "小时" + minite + "分" + second + "秒"); 
  } else {//剩余时间小于或等于0的时候，就停止间隔函数 
   window.clearInterval(InterValObj); 
   //这里可以添加倒计时时间为0后需要执行的事件 
  } 
 } 
</script> 
 
</head> 
 
<body> 
     
<div id="remainSeconds" style="display:none">360000</div> 
<div id="remainTime" style="font-size:20px;font-weight:800;color:#FF9900"></div> 
 
</body> 
</html>

 

 

//

 

<!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=utf-8" />
<title>无标题文档</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.1/jquery.min.js"></script>
<script>
var totaltime=3600000;
var nowtime;
$(function(){
nowtime = window.setInterval(SetRemainTime, 1000); //间隔函数，1秒执行 
});

function SetRemainTime(){
if(totaltime>0){
    totaltime = totaltime - 1; 
   var second = Math.floor(totaltime % 60);             // 计算秒     
   var minite = Math.floor((totaltime / 60) % 60);      //计算分 
   var hour = Math.floor((totaltime / 3600) % 24);      //计算小时 
   var day = Math.floor((totaltime / 3600) / 24);        //计算天 
   $("#day").html(day);
   $("hour").html(hour);
   $("#minite").html(minite);
   $("#second").html(second);
}else{
$("#day").html(0);
   $("hour").html(0);
   $("#minite").html(0);
   $("#second").html(0);
}
}
</script>
</head>

<body>
<div id="day"></div>天<div id="hour"></div>时<div id="minite"></div>分<div id="second"></div>秒
</body>
</html>