动态倒计时

/*笔墨丹青*/

var date_gk:Date=new Date(3012,5,7,9);
var date_now:Date;
var dateTime_gk:Number=date_gk.time;
var dateTime_now:Number;
var time:Number;
this.addEventListener(Event.ENTER_FRAME,onframe);
function onframe(e:Event):void
{
  date_now=new Date();
   dateTime_now=date_now.time;
  time=dateTime_gk-dateTime_now;
  var year:int=time/1000/60/60/24/365
  var day:int=time/1000/60/60/24%365;
  var hours:int=time/1000/60/60%24;
  var minutes:int=time/1000/60%60;
  var seconds:int=time/1000%60;
  var milliseconds:int=time%1000;
  output_txt.text=year+"年"+day+"天"+hours+"小时"+minutes+"分"+seconds+"秒"+milliseconds+"毫秒";
}