File Source for calendar.php

<?php
/**
* Access calendar package to display event calendar
*
* @package events
* @version $Header$
* @author nickpalmer
*/
/**
* required setup
*/
require_once( '../kernel/setup_inc.php' );
require_once(EVENTS_PKG_PATH.'BitEvents.php' );
if ( $gBitSystem->isPackageActive( 'calendar' ) ) {
include_once( CALENDAR_PKG_PATH.'Calendar.php' );
$gBitSystem->verifyPermission( 'p_calendar_view' );
// now, lets get the ball rolling!
$gCalendar = new Calendar();
$gCalendar->processRequestHash($_REQUEST, $_SESSION['calendar']);
// Setup which content types we want to view.
$listHash['content_type_guid'] = array('bitevents');
$events = new BitEvents();
if( empty( $_REQUEST['event_after'] ) ) {
$_REQUEST['event_after'] = $gBitSystem->getUTCTime();
}
$listevents = $events->getList( $_REQUEST );
// Build the calendar
$gCalendar->buildCalendar($listHash, $_SESSION['calendar']);
// And display it with a nice title.
$gCalendar->display(tra('Events Calendar'), FALSE, EVENTS_PKG_URL.'calendar.php');
}
?>

Source for file calendar.php