public function norouteAction($coreRoute = null)
{
/* @var $adminPageHelper Mana_Admin_Helper_Page */
$adminPageHelper = Mage::helper('mana_admin/page');
if ($adminPageHelper->getPageLayout($this->getRequest())) {
$this->_defaultPageAction();
} else {
parent::norouteAction($coreRoute);
}
}