protected function _recodeLangArrayWithKeys($aLangArray, $sCharset, $newEncoding)
    {

        $aLangs = [];
        foreach ($aLangArray as $sItemKey => $sValue) {
            $sItemKey = iconv($sCharset, $newEncoding, $sItemKey);
            $aLangs[$sItemKey] = iconv($sCharset, $newEncoding, $sValue);
        }

        return $aLangs;
    }