Simple website scripting

Right…

I have 5 movie clips on one scene layered on top of each other. One of them is the navigation which has 4 buttons. the other 4 layers are my content pages (MCs) which fade in and fade out along the timeline.

I want the buttoms to control the content pages… when “option 1” is selected I would like the current page to start playing (where i have it fading out along its timeline) and the other page to come in!

I have no idea how to do this… do you use IF commands?? if buttonpress etc

im a newbie to actionscript!!

cheers