// language id
        if( $languageCode === null )
        {
            $ini = eZINI::instance();
            $languageCode = $ini->variable( 'RegionalSettings' , 'ContentObjectLocale' );
        }
        $languageID = eZContentLanguage::fetchByLocale( $languageCode )->attribute( 'id' );
        $cond['language_id'] = $languageID;