JS获取时分秒的方法

function writeCurrentDate() {
        var now = new Date();
        var year = now.getFullYear(); //得到年份
        var month = now.getMonth();//得到月份
        var date = now.getDate();//得到日期
        var day = now.getDay();//得到周几
        var hour = now.getHours();//得到小时
        var minu = now.getMinutes();//得到分钟
        var sec = now.getSeconds();//得到秒
　　     var MS = now.getMilliseconds();//获取毫秒
        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;
        if （MS < 100）MS = "0" + MS;
        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;
        //当前日期赋值给当前日期输入框中（jQuery easyUI）
        $("#currentDate").html(time);
        //设置得到当前日期的函数的执行间隔时间，每1000毫秒刷新一次。
        var timer = setTimeout("writeCurrentDate()", 1000);
      }