set_error_handler('error_handler' /*, errtypes */);
include_once($path_to_root . "/includes/current_user.inc");
-include_once($path_to_root . "/includes/lang/language.php");
+include_once($path_to_root . "/includes/lang/language.inc");
include_once($path_to_root . "/includes/ajax.inc");
include_once($path_to_root . "/includes/ui/ui_msgs.inc");
include_once($path_to_root . "/includes/prefs/sysprefs.inc");