//== online time
         $userupdate0 = 'onlinetime = onlinetime + 0';
         $new_time = TIME_NOW - $row['last_access_numb'];
         if ($new_time < 300){
            $userupdate0 = "onlinetime = onlinetime + ".$new_time;
         }
         $userupdate1 = "last_access_numb = ".TIME_NOW;
         //end online-time