When you create any website usability is an essential goal, and usable and user friendly navigation is something every website needs.
It will give options to interact with the site easily.
Below I present some excellent navigation menus .
1] Sexy Drop Down Menu w/ jQuery & CSS
Nice jquery menu created by Soh Tanaka
2] Apple style menu
3] Color Fading Menu
Horizontal Animated Menu
This tutorial shows you how to create an interactive animated horizontal menu using jQuery that shows more information about particular link when mouse is moved over it.