$router[] = new Route('<lang=cs cs|de|en>/<slug>[/<subslug>]', array(
    'module' => 'Pages',
    'presenter' => 'Frontend',
    'action' => 'detail',
));

$router[] = new Route('<lang=cs cs|de|en>/', array(
        'module' => 'Pages',
        'presenter' => 'Frontend',
        'action' => 'default',
));