A sequence of state transistions in Flash Builder

I am trying out the Flash Builder beta (gumbo), and I am rather new to flex.

I have a component on stage, I tell it to go to it’s “leave” state (where it slides off the screen), when that finishes I want to switch the project’s state. How do I synchronize these two state changes so they don’t happen at the same time? I know I could probably use a timer, but is there something built into the state management system that can do this?

Thanks for any help.