服务器时间，剩余天、小时、分、秒倒计时代码

后台
 protected void Page_Load(object sender, EventArgs e)
        {
            GetDateValue();
        }
        protected static string[] SystemDate = null;
        public void GetDateValue()
        {
            DateTime dtNow = DateTime.Parse(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
            DateTime dtEnd = DateTime.Parse("2015-09-13 09:06:00");
            if (dtNow < dtEnd)
            {
                string _dt = (dtEnd - dtNow).ToString();
                int Num = _dt.IndexOf('.');
                string strDay = string.Empty;
                if (Num != -1)
                {
                    strDay = _dt.Substring(0, Num);
                }
                else
                {
                    strDay = "00";
                }
               string[] strDate = _dt.Substring(_dt.IndexOf('.') + 1).Split(':');

                string[] dtGet  = { strDay, strDate[0], strDate[1], strDate[2] };
                SystemDate = dtGet;
            }else
            {
                string[] dtGet = {"0","0","0","0"};
                SystemDate = dtGet;
            }
        }

前台JS
 <script type="text/javascript">
                   var date_day, date_hh,data_mm, date_ss;
                   date_day = <%= SystemDate[0] %>;
                   date_hh = <%= SystemDate[1] %>;
                   date_mm = <%= SystemDate[2] %>;
                   date_ss = <%= SystemDate[3] %>;
                   function stopCount() { clearTimeout(t) }
                   function strConfig(date){
                       if(date < 10)
                       {
                           return "0" + date;
                       }else{
                           return date;
                       }
                     }
                   function getSS() {
                       if(date_ss == 1){
                       if(getMM()){
                           date_ss = 59;
                           }else
                           {
                               date_ss = 0;
                           }
                       }else
                       {
                       if(date_ss > 0){
                           date_ss = date_ss - 1;
                           }
                       }
                       $("#date_s").text(strConfig(date_ss));
                       $("#date_m").text(strConfig(date_mm));
                        $("#date_h").text(strConfig(date_hh));
                       $("#date_d").text(strConfig(date_day));
                      t = setTimeout("getSS()",1000);
                   }
                   function getMM()
                   {
                       if(date_mm == 0){
                         if(getHH()){
                               date_mm = 60;
                           }else
                           {
                               return false;
                           }
                       }else
                       {
                           date_mm = date_mm - 1;
                       }
                       return true;
                   }
                   function getHH()
                   {
                       if(date_hh == 0){
                       if(getDay())
                       {
                           date_hh = 23;
                           }
                           else
                           {
                               return false;
                           }
                       }else
                       {
                           date_hh = date_hh - 1;
                       }
                       return true;
                   }
                   function getDay()
                   {
                       if(date_day == 0){
                       stopCount();
                        return false;
                       }else
                       {
                           date_day = date_day - 1;
                       }
                       return true;
                   }
    </script>