'false', 'data' => $data);
if (empty($course_id)) {
echo json_encode($result);
exit;
}
$Dippler->template->setTemplate("activity.html");
$course = new Course($course_id);
$Dippler->template->ajax_activity_objects = $course->getActivities($offset, $limit);
$data = $Dippler->template->execute();
$result = array('success' => 'true', 'data' => $data);
echo json_encode($result);
exit;
?>