What is expected behavior when a user tabs on the select box whic h doesn't contain any option?

From: Amy Lee <amy@avantgo.com> Date: Tue, 31 Jul 2001 15:10:09 -0400 (EDT) Message-ID: <2D6573A84E33D411927700D0B774233406021DF6@sampnt500.avantgo.com> To: "'www-html@w3.org'" <www-html@w3.org> · This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:49:24 GMT

I am trying to understand what is expected behavior when a user tabs on a
select box which doesn't contain any option. In IE and Netscape when I tab
on the widget, the empty pop-up menu is displayed. The spect says "A select
element must contain at least one option element..." but it doesn't mention
about this case. I will appreciate if you let me know.

<body>
	<select>
	</select>
</body>

http://www.w3.org/TR/html4/interact/forms.html#edef-SELECT

thanks!