Index: includes/menu.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/menu.inc,v
retrieving revision 1.202
diff -u -p -r1.202 menu.inc
--- includes/menu.inc	29 Aug 2007 20:46:18 -0000	1.202
+++ includes/menu.inc	30 Aug 2007 21:06:01 -0000
@@ -1049,7 +1049,8 @@ function menu_navigation_links($menu_nam
       $l = $item['link']['options'];
       $l['href'] = $item['link']['href'];
       $l['title'] = $item['link']['title'];
-      $links[] = $l;
+      // Keyed with unique menu id to generate classes from theme_links().
+      $links['menu-'. $item['link']['mlid']] = $l;
     }
   }
   return $links;