asp.net 中实时显示本地时间

<script src="js/jquery-1.7.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
      var clock = clockon();
     $("#bgclock").html(clock);
});
 
// 本地时钟
function clockon() {
    var now = new Date();
    var year = now.getFullYear();
    var month = now.getMonth();
    var date = now.getDate();
    var day = now.getDay();
    var hour = now.getHours();
    var minu = now.getMinutes();
    var sec = now.getSeconds();
    var week;
    month = month + 1;
    if (month < 10)
        month = "0" + month;
    if (date < 10)
        date = "0" + date;
    if (hour < 10)
        hour = "0" + hour;
    if (minu < 10)
        minu = "0" + minu;
    if (sec < 10)
        sec = "0" + sec;
    var arr_week = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");
    week = arr_week[day];
    var time = "";
    time = year + "年" + month + "月" + date + "日" + " " + hour + ":" + minu
            + ":" + sec + " " + week;
    var timer = setTimeout("clockon()", 200);
}
</script>

 <div class="footer" id="bgclock">
 </div>