Index: includes/theme.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/theme.inc,v
retrieving revision 1.503
diff -u -p -r1.503 theme.inc
--- includes/theme.inc	4 Aug 2009 07:04:21 -0000	1.503
+++ includes/theme.inc	11 Aug 2009 02:45:02 -0000
@@ -1239,6 +1239,7 @@ function theme_status_messages($display 
   $output = '';
   foreach (drupal_get_messages($display) as $type => $messages) {
     $output .= "<div class=\"messages $type\">\n";
+    $output .= "<h2 class=\"element-invisible\">" . t("$type messages") . "</h2>\n";
     if (count($messages) > 1) {
       $output .= " <ul>\n";
       foreach ($messages as $message) {