AllWebMenus Sliding Menus Add-in

With the "AllWebMenus Sliding Menu Add-in" you can easily give your web menus a "slide menu effect" – otherwise known as "expandable menus", "collapsible menus", or "accordion menus". Simply put, a submenu group pushes the items of its parent group downwards when it opens (slide down), and pulls these items upwards when it closes (slide up).