Index: wp-admin/includes/nav-menu.php
===================================================================
--- wp-admin/includes/nav-menu.php	(revision 14326)
+++ wp-admin/includes/nav-menu.php	(working copy)
@@ -62,7 +62,7 @@
 										),
 										remove_query_arg($removed_args, admin_url( 'nav-menus.php' ) ) 
 									), 
-									'move-item' 
+									'move-menu_item' 
 								); 
 							?>" class="item-move-up"><abbr title="<?php esc_attr_e('Move up'); ?>">&#8593;</abbr></a>
 							|
@@ -75,7 +75,7 @@
 										),
 										remove_query_arg($removed_args, admin_url( 'nav-menus.php' ) ) 
 									), 
-									'move-item'
+									'move-menu_item'
 								); 
 							?>" class="item-move-down"><abbr title="<?php esc_attr_e('Move down'); ?>">&#8595;</abbr></a>
 						</span>