def top_menu_li(label,controller,url)
    @current_page = request.request_uri
    @current_controller = request.path_parameters['controller']
    if @current_page == url || @current_controller == controller
      '<li class="current"><a href="' + url + '" title="' + label + '">' + label + '</a></li>'
    else
      '<li><a href="' + url + '" title="' + label + '">' + label + '</a></li>'  
    end
  end

I needed to make menu items that kept the current class based on the controller being accessed.

RoR Helper - Top Section Menu

rails

Rails