| activate | Activate/deactivate a menu item |
| activate.item | Activate/deactivate a menu item |
| activate.menu | Activate/deactivate a menu item |
| deactivate | Activate/deactivate a menu item |
| deactivate.item | Activate/deactivate a menu item |
| deactivate.menu | Activate/deactivate a menu item |
| is_item | Test if an object is an item |
| is_menu | Test if the object is a menu |
| new_menu | Build a new navigation menu |