public function management_message($message) {
        $this->page->requires->strings_for_js(array('clicktoclose'), 'core_grading');
        $this->page->requires->yui_module('moodle-core_grading-manage', 'M.core_grading.init_manage');
        return $this->output->box(format_string($message) . ' - ' . html_writer::tag('span', ''), 'message',
                'actionresultmessagebox');
    }