private static function GetFactionsIDs()
 {
     if (!self::$faction_ids) {
         if (!self::$reputation) {
             self::LoadCharacterReputation();
         }
         $ids = array();
         foreach (self::$reputation as $rep) {
             $ids[] = $rep['faction'];
         }
         self::$faction_ids = $ids;
     }
     return self::$faction_ids;
 }