On the Ibuildings techPortal Vito Chin has written up a quick tutorial on keyboard-enabling your web applications with jQuery and PHP.

It's time to bring the keyboard back! When we first started doing things on the web, there wasn't much to do. There were documents with hyperlinks that we can click on but that's about it; that was 15 years ago. Thanks to the growth of sophisticated server-side tools such as PHP and client-side tools such as jQuery, we are now able to do so much more.

The tutorial gives you an example of setting up the key bindings, adding in the listener and pulling them together with some jQuery magic. The PHP comes in to defined the initial key mappings for the menu automatically.