Can't Stop this sliding menu

Hi!

I’m making a slide menu that loads a xml file and creates buttons dynamically.
Another functionality it has a sliding menu also, and I can’t stop it. Can you help me please.

Heres goes the zip file, which contains .fla and .xml files

What I want to do is when I put the mouse at the top of the mask, the menu stops on the first option, and when I put the mous at the bottom, the menu stops on the last option.
Is it possible?

Thanks in advance!

http://www.marcogaspar.com/temp/slide_menu.zip

PS: URL fixed! Sorry! :wink: