ColumNav is a hierarchical menu implementation utilizing Bill Scott's Yahoo UI Carousel component. Content is loaded from an unordered list and displayed in a scrollable viewport, similar to Column View in the Mac OS X Finder. Features include:

• infinite extensibility using Ajax to build sub-menus
• instantiation from DOM or JSON data sources
• a highly customizable look and feel using CSS
• support for multiple columns
• support for keyboard-only navigation (CTRL + arrow keys)
• cross-browser compatibility