Js : 封装对象显示倒计时...........

timeCountDown.js 对象插件:

代码

/* by zhangxinxu 2010-07-27
* http://www.zhangxinxu.com/
* 倒计时的实现
*/
var fnTimeCountDown = function(d, o){
    var f = {
        zero: function(n){
            var n = parseInt(n, 10);
            if(n > 0){
                if(n <= 9){
                    n = "0" + n;
                }
                return String(n);
            }else{
                return "00";
            }
        },
        dv: function(){
            d = d || Date.UTC(2050, 0, 1); //如果未定义时间，则我们设定倒计时日期是2050年1月1日
            var future = new Date(d), now = new Date();
            //现在将来秒差值
            var dur = Math.round((future.getTime() - now.getTime()) / 1000) + future.getTimezoneOffset() * 60, pms = {
                sec: "00",
                mini: "00",
                hour: "00",
                day: "00",
                month: "00",
                year: "0"
            };
            if(dur > 0){
                pms.sec = f.zero(dur % 60);
                pms.mini = Math.floor((dur / 60)) > 0? f.zero(Math.floor((dur / 60)) % 60) : "00";
                pms.hour = Math.floor((dur / 3600)) > 0? f.zero(Math.floor((dur / 3600)) % 24) : "00";
                pms.day = Math.floor((dur / 86400)) > 0? f.zero(Math.floor((dur / 86400)) % 30) : "00";
                //月份，以实际平均每月秒数计算
                pms.month = Math.floor((dur / 2629744)) > 0? f.zero(Math.floor((dur / 2629744)) % 12) : "00";
                //年份，按按回归年365天5时48分46秒算
                pms.year = Math.floor((dur / 31556926)) > 0? Math.floor((dur / 31556926)) : "0";
            }
            return pms;
        },
        ui: function(){
            if(o.sec){
                o.sec.innerHTML = f.dv().sec;
            }
            if(o.mini){
                o.mini.innerHTML = f.dv().mini;
            }
            if(o.hour){
                o.hour.innerHTML = f.dv().hour;
            }
            if(o.day){
                o.day.innerHTML = f.dv().day;
            }
            if(o.month){
                o.month.innerHTML = f.dv().month;
            }
            if(o.year){
                o.year.innerHTML = f.dv().year;
            }
            setTimeout(f.ui, 1000);
        }
    };
    f.ui();
};

倒计时 - 实例

代码

<!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>艾纳科技整理www.ainatec.com-JQ倒计时</title>
<style type="text/css">
.fl{ float:left;}span{ float:left}
</style>
<script type="text/javascript" src="http://www.gzse7en.com/js/timeCountDown.js"></script>
</head>
<body>
   <div class="fl">
                     <div id="year" class="year fl">0</div><span>年</span>
                        <div id="month" class="month fl">00</div><span>月</span>
                        <div id="day" class="day fl">00</div><span>日</span>
                        <div id="hour" class="hour fl">00</div><span>时</span>
                        <div id="mini" class="fl mini ml5">00</div><span>分</span>
                        <div id="sec" class="sec fl">00</div><span>秒</span>
                        </div>
                        <script type="text/javascript">
var zxx = {
$: function(id){
  return document.getElementById(id);
},
futureDate: Date.UTC(2050, 7, 30, 12,0,0),
obj: function(){
  return {
   sec: zxx.$("sec"),
   mini: zxx.$("mini"),
   hour: zxx.$("hour"),
   day: zxx.$("day"),
   month: zxx.$("month"),
   year: zxx.$("year")
  }
}
};
fnTimeCountDown(zxx.futureDate, zxx.obj());
</script>

</body>
</html>