$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/dav/wdcal/css/calendar.css' . '" media="all" />' . "\r\n";
$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/dav/wdcal/css/main.css' . '" media="all" />' . "\r\n";
$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/dav/wdcal/css/calendar.css' . '" media="all" />' . "\r\n";
$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/dav/wdcal/css/main.css' . '" media="all" />' . "\r\n";