// only show add button if there are still some unlisted rooms
if(count(mod_roomReservationRoomsManager::getRooms()) > count($aoRooms)) {
TreeViewLine(sprintf("<%s name='mod_roomReservationRoomWhitelistListBox".
// only show add button if there are still some unlisted rooms
if(count(mod_roomReservationRoomsManager::getRooms()) > count($aoRooms)) {
TreeViewLine(sprintf("<%s name='mod_roomReservationRoomWhitelistListBox".