COOLjsMenu
COOLjsMenu is an advanced cross-browser JavaScript menu that provides with some unique features that are not to be found elsewhere. Easily adjustable and configurable from the control file it requires no programming knowledge from the user and can be integrated into the site in minutes. Almost every aspect of the menus you can build with this API can be modified and tuned. On-line menu builder further simplifies the process. Documentation and first class support from the vendor also provided. Besides free version there is also COOLjsMenu PRO edition with even more features.