public function summary_page($attemptobj, $displayoptions) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading(format_string($attemptobj->get_quiz_name()));
        $output .= $this->heading(get_string('summaryofattempt', 'quiz'), 3);
        $output .= $this->summary_table($attemptobj, $displayoptions);
        $output .= $this->summary_page_controls($attemptobj);
        $output .= $this->footer();
        return $output;
    }