flash 当前时间显示

var xq:Array = new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
function nowtime()
{
 var now:Date = new Date();
 year = now.getFullYear();
 mon = now.getMonth();
 day = now.getDate();
 week=now.getDay();
 hour = now.getHours();
  if(hour>12)
 {
  hour= hour-12;
  }
 minu = now.getMinutes();
 second = now.getSeconds();
 _root.y_txt.text = year+"年"+(mon+1)+"月"+day+"日  "+xq[week]+"   "+ hour+":"+ minu+":"+second;
 _root.y_txt.width = y_txt.textWidth + 12;
     _root.y_txt.height = 20;

 }
 var nowtimeid = setInterval(nowtime,1000);