UI/Tabs -- tabs.({ selected: null }) apparently not working

UI/Tabs -- tabs.({ selected: null }) apparently not working


Hi, just discovered jQuery UI yesterday... working with the Tabs /
Tabs 3. In Firefox 2.0.0.14, the selected: null method does not seem
to be working:
$('#production-main').tabs({ selected: null });
I can make other methods work on the same container (such as unselect:
true):
$('#production-main').tabs({ unselect: true });
Indeed, even on the demo site, the example using "selected: null"
doesn't seem to be working -- which make me believe my code is at
least not to blame:
http://stilbuero.de/jquery/tabs_3/
(see heading "Start with all tabs unselected/allow toggle visibility"
at the bottom of the page if interested).
Is this a known issue or am I indeed doing something wrong?
Thanks in advance!
Jeff