Slide-In Menu Bar II, multiple key press?

[tivaelydoc]

1) Script Title: Slide-In Menu Bar II

2) Script URL (on DD): http://www.dynamicdrive.com/dynamici...einmenukey.htm

3) Describe problem:
How do you modify the letter that you press to open the menu, to be, let's say like a then d then s then f?


PS. If any who knows about keypress js can help me, how do make a link that is activated upon multiple key presses? (but not together like ctrl+alt+d)