Commented Unassigned: How can I Change an Accordion Pane from Client Side [27880]

I used to be able to cal set_SelectedIndex to change an accordion pane on the client side so that the transition effects worked. I can't seem to these anymore.

Is there another way?
Comments: I managed to find it - it's in the behavior class... function ChangeTab(index) { $get('accordionMain').AccordionBehavior.set_SelectedIndex(index); } and I call that js from ServerSide when my server method finishes, and the tabs change with the transitions.