-$textlocale = $utils->negotiateLocale(array('en', 'de'));
-putenv('LC_ALL='.$textlocale);
+$textlocale = $utils->negotiateLocale(array_keys($supported_locales));
+putenv('LC_ALL='.$supported_locales[$textlocale]);
+$selectedlocale = setlocale(LC_ALL, $supported_locales[$textlocale]);