Xml actionscript menu

I’m working on a project that I would like to have an xml menu nearly completely made out of actionscript. The problem with most examples (and I’ve looked at a lot of them) is that they are all single lined.

Well, I am very close to having one using attachMovie, all except for the button that’s supposed to tell the _root to go to a certain frame in the xml document. It just doesn’t want to see the xml inside the button. The button works, the xml works outside the button, but together, i get an undefined.

I could sure use some help from a guru. I’ve included the files so you can see what’s up. The problem area is marked inside the sectionMenu movie clip. Thanks.