public function Field($properties = array())
    {
        if ($this->value) {
            $val = Convert::raw2xml($this->value);
            $val = DBCurrency::config()->get('currency_symbol')
                . number_format(preg_replace('/[^0-9.-]/', '', $val), 2);
            $valforInput = Convert::raw2att($val);
        } else {
            $valforInput = '';
        }
        return "<input class=\"text\" type=\"text\" disabled=\"disabled\""
        . " name=\"" . $this->name . "\" value=\"" . $valforInput . "\" />";
    }