Not sure actually, if you ask me, it's kinda bad HCI design to create a page that contains hotkeys that can be easily get hit accidentally and the user may get confused as to why the webpage has just changed to
www.yahoo.com.
If you really want to, you could theorically speaking use JSP which would implment a keystroke listener, I can't really help you too much on that one since I haven't done that sort of thing.