Help with navigation

I’m trying to create a navigation for a client where the tabs roll up and then rewind to roll back down. On some of the tabs I want to have links to other sections of the site. My only problem is that I keep getting errors when I preview and I’m terrible at understanding actonscript and how to make it work for what I’m doing.

Can someone help me work out these errors. I can make the tab roll up smoothly, but when it rewinds you can tell it’s not smooth. How can I do that?

Here’s the fla