Keypress problem

[stephen702]

I've revisited keypress after some time away, and running into difficulties.
I'm experimenting the Tramline menu sample downloaded from Milonic.

In order to get keypress to move down this menu, I first had to put in a bogus url for each menu item. (I couldn't figure out any other way to get the tab-move to work.)

But as I tab down the menu, keypress doesn't bring up the submenus to the right. How do I make that happen?

Any help would be appreciated

http://www.aact.org/tram/

Thanks in advance.