public function getKeyword( $locale = false )
    {
        if ( $this->attribute( 'id' ) == null )
            return $this->Keyword;

        $translation = $this->translationByLocale( $locale === false ? $this->CurrentLanguage : $locale );
        if ( $translation instanceof eZTagsKeyword )
            return $translation->attribute( 'keyword' );

        return '';
    }