Lets take a look at recent examples of these …
1. Vertical Animated Menus
This tutorial illustrates how to implement a nice animated menu using Mootoolsand some lines of CSS and HTML code ready to reuse in your project.
A jQuery iPod-style drilldown menu to help users traverse hierarchical data quickly and with control. It's especially helpful when organizing large data structures that don't translate well into traditional dropdown or fly-out menus.
MenuMatic is a MooTools 1.2 class that takes a sematic ordered or unordered list of links and turns it into a dynamic drop down menu system.
The BDC DrillDown Menu is a compact, hierarchical drilldown menu implemented as a jQuery plugin. A drilldown menu takes up constant space like an accordian menu but offers the deep hierarchy of a flyout menu at the same time.
2. Horizontal Animated Menus
This tutorial explains how to implement an animated menu using mootools. You can see how it works directly from mootools site.
A really nice animated menu created using Mootools, with a flash hover effect of an arrow.
This sliding hover effect script is an easy method to add some flavor to your navigation. Using the CSS you can easily customize the navigation to fit your "look and feel".
The menu is developed in Mootools with a nice sliding effect on each tab.
A simple and lightweight menu that can be easily updated by simply editing a <ul> HTML element. Created using Mootools.
Superfish is an enhanced Suckerfish-style menu jQuery plugin that takes an existing pure CSS drop-down menu and adds Suckerfish-style hover effect. Features include: Timed delay on mouseout, Animation of sub-menu reveal, Supports the hoverIntent plugin, drop shadows for capable browsers and more…
e24TabMenu is a plugin written for Scriptaculous. It is a tab menu that expands collapse smoothly.
Snook wrote a straignforward script to produce a nice menu background image animation. The animation needs to run when the user moves their mouse over and out of the navigation. The key thing to note is that any animation is stopped before attempting to animate again. This avoids animations queuing up from repeatedly moving the mouse in and out of the element.
13. A Sliding Menu
It is a very simple sliding menu using the effects provided by Interface. The defauly behavior of the menu is to hide after 1000ms (1 sec.) and to display when your mouse hovers over the "menu" label. The menu will also auto-hide after 1000ms when the mouse leaves the menu area. Most of these values, including the sliding effect, can be customized.