数字时钟

要求：页面显示形如2015/05/20 15:36:31这样的时间格式，并且时间一秒走一次。

JavaScript代码：

<script type="text/javascript" src="/Scripts/jquery-1.8.2.min.js"></script>
<script type="text/javascript">
        function getdate() {
            var date = new Date();
            var year = date.getFullYear();
            var month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1;
            var day = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
            var hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
            var minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
            var second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
            $("#sTime").html(year + "/" + month + "/" + day + " " + hour + ":" + minute + ":" + second);
            window.setTimeout(getdate, 1000);
        }
        $(function () {
            getdate();
        });
    </script>

Html代码：

<span id="sTime"></span>