public function day($options = array())
    {
        $options = new AnConfig($options);

        $options->append(array(
            'selected' => null,
            'prompt' => true,
        ));

        $days = array_combine(range(1, 31), range(1, 31));
        $selected = $options->selected;
        unset($options->selected);
        $prompt = $options->prompt;
        unset($options->prompt);
        if ($prompt) {
            $array = array(AnTranslator::_('LIB-AN-SELECTOR-SELECT-DAY'));
            $days = AnHelperArray::merge($array, $days);
        }

        return $this->_html->select($options->name, array('options' => $days, 'selected' => $selected), AnConfig::unbox($options));
    }