case "new":
        require_once 'admin-timeline-modify.php';
        break;
    case "modify":
        require_once 'admin-timeline-modify.php';
        break;
    case "delete":
        require_once 'admin-timeline-delete.php';
        break;
    case "delete_reservation":
        require_once 'admin-timeline-delete_reservation.php';
        break;
    case "deleteday":
        require_once 'admin-timeline-deleteday.php';
        break;
    case "clone":
        require_once 'admin-timeline-clone.php';
        break;
    case "competition":
        require_once 'admin-timeline-competition.php';
        break;
    default:
        $times = Calendar::get_times();
        $timeunits = TimeUnit::get_day_timeunits_admin($selected_date);
        $courts = Court::get_all();
        $smarty->assign('courts', $courts);
        $smarty->assign('times', $times);
        $smarty->assign('timeunits', $timeunits);
        $smarty->assign('selected_date', $selected_date);
        $smarty->display('admin-timeline.tpl');
}