[svn r17639] FS#2970 - Advanced file manager: Modification of the configuration option CONFIG_WEBSITE_DOCUMENT_ROOT in order to avoid its manual adjustment in certain cases.
define('CONFIG_LANG_INDEX', 'language'); //the index in the session
define('CONFIG_LANG_DEFAULT', (CONFIG_QUERY_STRING_ENABLE && !empty($_GET['language']) && file_exists(DIR_LANG . secureFileName($_GET['language']) . '.php')?secureFileName($_GET['language']):'en')); //change it to be your language file base name, such en