onchange event handler and select tags

http://www.frostjedi.com/terra/scripts/demo/select.html

When I select an item from the drop down menu, with the mouse, that
selection appears in the div section below.

When, however, I double click the drop down menu and then browse
through the entries with the up / down arrow on the keyboard, the
selection does not appear in the div. In IE7 it does but not in
Firefox 2. Any ideas as to why and what I can do fix it?

On Dec 10, 7:52 pm, yawnmoth <terra1...@yahoo.comwrote:Also, any ideas as to why that page doesn't validate at
validator.w3.org?:

http://validator.w3.org/check?uri=ht...Inline&group=0