Fx.Slide : Vertical

[Uday]

Hi,

I'm very new to this have have been playing around with the examples,
i came across a situation which i couldn't solve, any pointers help
would be appreciated.

I have two buttons 'A' and 'B', each of which have their own vertical
divs 'a' and 'b'.

what i would like is:

when the page loads NOTHING is shown, ie neither of the divs are
visible, then when an user click on button 'A' div 'a' is visible
[which is easy enough] if the user clicks on button 'B' div 'b' is
visible,

BUT, if either of the other divs were open when a button was pressed
ie.if button 'A' was pressed after button 'B' then div 'b' should
close and div 'a' should open and vice versa.

i cant seem to do it...

any one who can help?

thank you
-U