Another elastic question

1

I want to recreate a menu that kinda like this

http://www.g10r10.com/

I’ve set menu items with an elastic Y position prototype.
What I need to do now is make the menu tabs collapse with the elastic force. So if i was to click the top tab, the bottom 4 would fall. If i was to click the 2nd tab, the bottom 3 would fall and the top 2 would go up.

can anyone help?

thanks in advance

2

I figured it out. Thanks anyway.

It kinda crude but it works.
If any of you guys have any cool ideas, let me know.
Im in the early stages of my new portfolio site.