/**
  * Get HTML for Megamenu
  * @param string $menutype
  * @param string $isAdmin True to generate megamenu in backend
  * @return string
  */
 public function displayMegaMenu($menutype = null, $isAdmin = false)
 {
     if ($menutype === null) {
         $menutype = $this->get('menu_type', 'mainmenu');
     }
     $menu = new Zo2Megamenu($menutype);
     return $menu->rendermenu($isAdmin);
 }