My ASP.NET MVC has the need for a vertical navigation menu where submenus would be generated dynamically via ajax when the user clicks on the parent menu item. I would like to use jQuery and Css to drive the menu but that's just a preference.
I really don't want to reinvent the wheel here. I know this type of menu has been done before. For example, Deluxe Menu and Telerik (links are to their ajax menu demos) offer the functionality I'm after. Are there any free ajax menu plugins/samples available? How would you implement the menu?