How can I prevent Backspace from navigating back in javascript?

Question

This works in IE, but I cannot get it to work in Opera or Firefox. I want to prevent Backspace from navigating away if and only if the current focus is the SELECT dropdown.

Answer 1

Well, turns out that Opera needs the event to be cancelled in the onkeypress event, not onkeydown.

Reference: http://jimblackler.net/blog/?p=20