Flash website question making it dynamic. How?


I am making a flash website and i would like to ask for general idea how to deal with different buttons clicked? How to make page dynamic? I believe i do not have to code every possible scenario ( user on home page clicks on portfolio and than that and that happens, user on about us clicks on home and than that happens).
Should i create container mc for lets say current page and than empty it and load new content in or what is general idea /best practice how to do that?

I was thinking something like i have current page and than user clicks one of the 4 buttons and current page (mc) is removed from stage and new content is loaded in to container mc an it becomes (new) current page. Is that right way of doing it or is there better way?

suggestions will be great since i am sort of stuck.