Help with navigation

Hi there, please, I need some help with this navigation. I have included an example.

I have a site with that structure: actionscript layer, label layer, content layer (section content ), circles layer (layer with three circle that work like buttons).

This last layer (circles) have a random motion inside.

I need to attach code on every circle, that work in this way: for example, when I press on circle 1 = circle 2 and 3 go over the top stage, circle 1 go to bottom stage and disappear. Then will be start load section1.In this section 1, will be a button that when pressed go to home section.

When I press on circle 2= circle 1 and 3 go over the top stage, circle 2 go to bottom stage and disappear. Then will be start load section2.In this section 2, will be a button that when pressed go to home section.

And so on for the circle 3…

Thanks a lot for everyone give me help and advice on other solutions…thanks