動態時間 time

        var timerID = null;
        var timerRunning = false;
        function stopclock() {
            if (timerRunning)
                clearTimeout(timerID);
            timerRunning = false;
        }
        function startclock() {
            stopclock();
            showtime();
        }
        function showtime() {
            var now = new Date();
            var hours = now.getHours();
            var minutes = now.getMinutes();
            var seconds = now.getSeconds();
            var dateValue = now.getYear() + 1900 + "年" + (now.getMonth() + 1) + "月" + now.getDate() + "日";
            var timeValue =  ((hours >= 12) ? " 下午 " : " 上午 ");
            timeValue += ((hours > 12) ? hours - 12 : hours);
            timeValue += ((minutes < 10) ? ":0" : ":") + minutes;
            timeValue += ((seconds < 10) ? ":0" : ":") + seconds;
            $('#time').html(timeValue);
            timerID = setTimeout("showtime()", 1000);
            timerRunning = true;
        }
        $().ready(function () {
            startclock();
        });