js倒计时方法

1.js设置倒计时日期

  //data 格式MM-dd-yyyy HH:mm:ss

  function ShowTime(data){

    window.setTimeout(function(){this.ShowTime(time);},  1000);

    var serverDay=new Date(data);

    var today=New Date();

    var s_t_time=serverDay.getTime()-today.getTime();

    var ss_time=Math.floor(s_t_time/1000);

    var  day_time=s_t_time/(24*60*60*1000);

    var day=Math.floor(day_time);

     var hours_time=(day_time-day)*24;

     var hh=Math.floor(hours_time);

     var min_time=(hours_time-hh)*60;

     var mm=Math.floor((hours_time-hh)*60);

     var ss=Math.floor((min_time-mm)*60);

      if(day<=0){

          document.write("时间到！哈哈");
       }

       else{

         document.write(day+"天"+hh+"小时"+mm+"分"+ss+"秒");
       }

  }

ShowTime("1-10-2012 22:06:45");