function get_current_game_day()
 {
     if ($this->currentGameDay) {
         return $this->currentGameDay;
     }
     $day = null;
     $db = new KKL_DB();
     if ($_GET['game_day_filter']) {
         $day = $db->getGameday($_GET['game_day_filter']);
     } elseif ($this->get_current_season()) {
         $day = $db->getCurrentGameDayForSeason($this->get_current_season()->id);
     } elseif ($this->get_current_league()) {
         $day = $db->getCurrentGameDayForLeague($this->get_current_league()->id);
     }
     $this->currentGameDay = $day;
     return $day;
 }