navigation active class

app/helpers/application_helper.rb

@@ -4,4 +4,12 @@ module ApplicationHelper
 
     link_to 'page', page_person_path(person)
   end
+
+  def active_controller(kontroller)
+    'active' if params[:controller] == kontroller
+  end
+
+  def active_action(action)
+    'active' if params[:action] == action
+  end
 end