public function get($property)
    {
        $value = null;

        if ($this->_convert) {
            $property = str_replace( "_", "-", $property );
        } else {
            $property = str_replace( "-", "_", $property );
        }

        if (array_key_exists($property, $this->_values)) {
            return $this->_values[$property];
        } else {
            return null;
        }

    }