Plugins - MenuEngine
Add to favoritesMenuEngine supports creation of menus from a YAML file, from code and from pre-configured HTML. The javascript library can also be used outside of Rails.
If your application uses UserEngine for authorization, MenuEngine will optionally use the permissions for the current user to conditionally display only the menu items that link to controller/action pairs that the current user is authorized to use.
This software package is developed using the Engines plugin. To find out more about how to use engines in general, go to rails-engines.rubyforge.org for general documentation about the Engines mechanism.
http://www.muermann.org/ruby/menu_engine/
http://svn.rails-engines.org/plugins/menuengine
Rails' (MIT)
Rails Engines

it's not on http://svn.rails-engines.org/plugins/menuengine anymore, seems to be gone. is there any other dtml menubar plugin?