$options = 'menubar=0,location=0,left=5,top=5,scrollbars,resizable,width='. $lesson->mediawidth .',height='. $lesson->mediaheight;
$name = 'lessonmediafile';
- $content = link_to_popup_window ($url, $name, get_string('mediafilepopup', 'lesson'), '', '', get_string('mediafilepopup', 'lesson'), $options, true);
+ $link = html_link::make($url, get_string('mediafilepopup', 'lesson'));
+ $link->add_action(new popup_action('click', $link->url, $name, $options));
+ $link->title = get_string('mediafilepopup', 'lesson');
+ $content .= $OUTPUT->link($link);
+
$content .= $OUTPUT->help_icon(moodle_help_icon::make("mediafilestudent", get_string("mediafile", "lesson"), "lesson"));
$bc = new block_contents();