Index: /CKEditor/trunk/_source/plugins/menu/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/menu/plugin.js	(revision 6282)
+++ /CKEditor/trunk/_source/plugins/menu/plugin.js	(revision 6283)
@@ -50,5 +50,5 @@
 		{
 			definition = this._.definition = definition || {};
-			this.id = 'cke_' + CKEDITOR.tools.getNextNumber();
+			this.id = CKEDITOR.tools.getNextId();
 
 			this.editor = editor;