Index: dhtml_menu.js
===================================================================
--- dhtml_menu.js	(revision 319)
+++ dhtml_menu.js	(working copy)
@@ -113,7 +113,7 @@
       }
       // Otherwise, select all menus of the same level
       else {
-        var siblings = $('ul.menu li.expanded').not('.own-children-temp').not(':has(#' + id + ')');
+        var siblings = $('ul.menu li.expanded').not('.own-children-temp').not('.no-dhtml').not(':has(#' + id + ')');
       }
 
       // If children should not get closed automatically...