function render(&$params, $callback)
 {
     // Include the new menu class
     $xml = modNewMainMenuHelper::getXML($params->get('menutype'), $params, $callback);
     if ($xml) {
         $class = $params->get('class_sfx');
         // add icon class if menu images are enabled
         if ($params->get('menu_images') && $params->get('menu_images') != -1) {
             $class .= ' icon';
         }
         $xml->addAttribute('class', 'menu' . ' ' . $class);
         if ($tagId = $params->get('tag_id')) {
             $xml->addAttribute('id', $tagId);
         }
         $result = JFilterOutput::ampReplace($xml->toString((bool) $params->get('show_whitespace')));
         $result = str_replace(array('<ul/>', '<ul />'), '', $result);
         echo $result;
     }
 }