Menu sytem AS

I am trying to make a menu that when you click on the link it alpha-transitions a movie, after it finishes it scale-transitions another movie, and after that finishes it alpha-transitions another movie. I need it to be a prototype function. I know how to do all the scale and alpha transitions I just can’t figure the rest out. And bye the way I need it all in AS. Can anyone help me or point me to a tutorial on how to do it?