public function export($uid, $contentType)
    {
        global $kronolith_shares;

        Horde::debug($uid);
        Horde::debug($contentType);

        $event = Kronolith::getDriver()->getByUID($uid);
        if (!$event->hasPermission(Horde_Perms::READ)) {
            throw new Horde_Exception_PermissionDenied();
        }

        $version = '2.0';
        switch ($contentType) {
        case 'text/x-vcalendar':
            $version = '1.0';
        case 'text/calendar':
            $share = $kronolith_shares->getShare($event->calendar);

            $iCal = new Horde_Icalendar($version);
            $iCal->setAttribute('X-WR-CALNAME', $share->get('name'));

            // Create a new vEvent.
            $iCal->addComponent($event->toiCalendar($iCal));

            return $iCal->exportvCalendar();

        case 'activesync':
            try {
                $test = $event->toASAppointment();
                Horde::debug($test);
            } catch (Exception $e) {
                Horde::debug($e->getMessgae());
            }
            return $event->toASAppointment();
        }

        throw new Kronolith_Exception(sprintf(_("Unsupported Content-Type: %s"), $contentType));
    }