$sql = "SELECT Distinct(GroupId) FROM ".GetTablePrefix()."Permissions WHERE CatId=".$_GET["CatId"];
//$sql = "SELECT Distinct(p.GroupId) FROM ".GetTablePrefix()."Permissions AS p LEFT JOIN ".GetTablePrefix()."PortalGroup AS pg ON p.GroupId = pg.GroupId WHERE p.CatId=".$_GET["CatId"]." AND pg.Personal=0";