public static string loadTop2(Int32 userno)
        {
            SBObj _sbobj = new SBObj();
            _sbobj.UserNo = userno;
            DataSet ds = new DataSet();
            try
            {
                ds.Tables.Add(_sbobj.LoadTop2());
            }
            catch (Exception ex)
            {

            }
            return ds.GetXml();
        }