The page you are using demonstrates the capabilities of AOL's AXS (access) JavaScript Library. With this library a web developer can move focus at will, assign keyboard commands or JavaScript functions, Ajax in new content, attach events to DOM objects and other useful behaviors. The keyboard shortcuts are highly discoverable for keyboard or screen reader users via a hidden but focusable link. These shortcuts also have broad appeal in that they make web applications behave much more like desktop applications.

This particular page lets you move focus from one box to another, load new content via Ajax into any of the boxes that have focus, or update all the boxes at once.