SELECT kep_id,alb_id,tul_id,file,kepalairas 
   FROM keptar_kep 
   WHERE ( (hely_id=49) OR (hely_id=73) OR (hely_id=161) OR (hely_id=34) OR (hely_id=75) OR (hely_id=36) OR (hely_id=299) OR (hely_id=462) OR (hely_id=52) OR (hely_id=80) OR (hely_id=160) OR (hely_id=74) OR (hely_id=78) OR (hely_id=51) OR (hely_id=300) OR (hely_id=35) OR (hely_id=33) )
      AND (aktiv=1) 
   ORDER BY alb_id DESC, file ASC 
   LIMIT 20 (20 sor)