protected function displayHeader(\MUtil_Model_Bridge_FormBridgeInterface $bridge, $header, $tagName = 'h2')
    {
        static $count = 0;

        $count += 1;
        $element = $bridge->getForm()->createElement('html', 'step_header_' . $count);
        $element->$tagName($header);

        $bridge->addElement($element);
    }