Index: includes/theme.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/theme.inc,v
retrieving revision 1.499
diff -u -p -r1.499 theme.inc
--- includes/theme.inc	15 Jul 2009 17:40:17 -0000	1.499
+++ includes/theme.inc	22 Jul 2009 18:19:08 -0000
@@ -1352,7 +1352,7 @@ function theme_image($path, $alt = '', $
  */
 function theme_breadcrumb($breadcrumb) {
   if (!empty($breadcrumb)) {
-    return '<div class="breadcrumb">' . implode(' » ', $breadcrumb) . '</div>';
+    return '<div class="breadcrumb"><span class="visibility-invisible">You are here:</span>' . implode(' » ', $breadcrumb) . '</div>';
   }
 }
 
Index: themes/garland/template.php
===================================================================
RCS file: /cvs/drupal/drupal/themes/garland/template.php,v
retrieving revision 1.22
diff -u -p -r1.22 template.php
--- themes/garland/template.php	2 Jun 2009 03:57:22 -0000	1.22
+++ themes/garland/template.php	22 Jul 2009 18:19:08 -0000
@@ -10,7 +10,7 @@
  */
 function garland_breadcrumb($breadcrumb) {
   if (!empty($breadcrumb)) {
-    return '<div class="breadcrumb">' . implode(' › ', $breadcrumb) . '</div>';
+    return '<div class="breadcrumb"><span class="visibility-invisible">You are here:</span>' . implode(' › ', $breadcrumb) . '</div>';
   }
 }