making rollover button that launches new project

[andypilot]

I am in need of creating a Director project that has sub Director projects within. What I'd like to do is have a rollover button that, when pressed, does two things. Number one, fades the volume of the main audio track playing on the main project to zero, then launches the sub project called for by that particular button.

I'm assuming this is possible, but have no idea on how to make it work. any sugguestions?