protected function createCheckbox($name, $options)
    {
        $box = new Checkbox($name, $options);
        $box->setAttribute('checked', true)
            ->setAttribute(
                'id',
                preg_replace(
                    array('~\[~', '~\]~', '~--+~', '~-$~'),
                    array('-', '', '-', ''),
                    $name
                )
            );

        return $box;
    }