public function logo($config = array())
    {
        $config = new AnConfig($config);

        $config->append(array(
            'show_logo' => pick($this->_params->showLogo, 1),
            'name' => pick($this->_params->brandName, 'Anahita'),
            'url' => 'base://',
        ));

        $showLogo = ($config->show_logo) ? ' brand-logo' : '';

        return '<a class="brand'.$showLogo.'" href="'.$config->url.'">'.$config->name.'</a>';
    }