In IE7, I cannot capture and handle the onkeydown event for Alt-D with
JavaScript, though it works fine in IE6.  By default, Alt-D is the
keyboard shortcut to transfer focus to the address bar.  In IE6, my
JavaScript code would properly handle the Alt-D onkeydown event,
before keyboard focus is transferred to the address bar.  In IE7,
however, it seems that IE would simply consume the Alt-D event and
transfer focus to the address bar right away, and my JavaScript does
not capture the event at all.

I also tried capturring other shortcuts in IE7 with JavaScript (Alt-F,
for example), and they all work fine.  It appears that Alt-D is the
only exception.  Any comments are most welcome.  Thanks!