jquery 当前时间

<script type="text/javascript">
    $(function () {
      setInterval("GetTime()", 1000);
    });
//获取时间并设置格式
function GetTime() {
  var mon, day, now, hour, min, ampm, time, str, tz, end, beg, sec;
  /*
   mon = new Array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug",
   "Sep", "Oct", "Nov", "Dec");
   */
  mon = new Array("一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月",
      "九月", "十月", "十一月", "十二月");
  /*
   day = new Array("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
   */
  day = new Array("周日", "周一", "周二", "周三", "周四", "周五", "周六");
  now = new Date();
  hour = now.getHours();
  min = now.getMinutes();
  sec = now.getSeconds();
  if (hour < 10) {
    hour = "0" + hour;
  }
  if (min < 10) {
    min = "0" + min;
  }
  if (sec < 10) {
    sec = "0" + sec;
  }
  $("#Timer").html(
      now.getFullYear() + "年" + (now.getMonth() + 1) + "月" + now.getDate() + "日" + "  " + hour + ":" + min + ":" + sec
  );
  //$("#Timer").html(
  //        day[now.getDay()] + ", " + mon[now.getMonth()] + " "
  //                + now.getDate() + ", " + now.getFullYear() + " " + hour
  //                + ":" + min + ":" + sec);
}
</script>