function organizer_add_calendar()
{
global $PAGE, $DB;
$courseid = optional_param('course', SITEID, PARAM_INT);
if ($courseid != SITEID && !empty($courseid)) {
$course = $DB->get_record('course', array('id' => $courseid));
$courses = array($course->id => $course);
$issite = false;
} else {
$course = get_site();
$courses = calendar_get_default_courses();
$issite = true;
}
$now = usergetdate(time());
$calendar = new calendar_information($now['mday'], $now['mon'], $now['year']);
$calendar->prepare_for_view($course, $courses);
$renderer = $PAGE->get_renderer('core_calendar');
$calendar->add_sidecalendar_blocks($renderer, true, 'month');
$PAGE->requires->js_init_call('M.mod_organizer.fix_calendar_styles');
}
$url->param('cal_y', $yr);
}
$PAGE->set_url($url);
if ($courseid != SITEID && !empty($courseid)) {
$course = $DB->get_record('course', array('id' => $courseid));
$courses = array($course->id => $course);
$issite = false;
navigation_node::override_active_url(new moodle_url('/course/view.php', array('id' => $course->id)));
} else {
$course = get_site();
$courses = calendar_get_default_courses();
$issite = true;
}
require_course_login($course);
$calendar = new calendar_information($day, $mon, $yr);
$calendar->prepare_for_view($course, $courses);
$now = usergetdate(time());
$pagetitle = '';
$strcalendar = get_string('calendar', 'calendar');
if (!checkdate($mon, $day, $yr)) {
$day = intval($now['mday']);
$mon = intval($now['mon']);
$yr = intval($now['year']);
}
$time = make_timestamp($yr, $mon, $day);
switch ($view) {
case 'day':
$PAGE->navbar->add(userdate($time, get_string('strftimedate')));
$pagetitle = get_string('dayview', 'calendar');
break;
case 'month':
