Rollover Nav?

Hello everyone,

I am trying to have a rollover nav in my movie. You can take a look at what I am talking about here . when you hit the branding you will see a nav on the left come up. Is there a way to build a nav that when you roll to the top it move up, and roll the bottom and move down. Also incorporating that easing like the scoller.

I hope this make sense, here is a little .jpg what I am talking about.

here is the jpg