There are only two menu items for navigating to specific document pages, "First Page" and "Last Page". Unless you want to goto one of these, you can't use "Execute a Menu Item" to go to a specific document page.
Select "Go to a page view" for the button's Action.
Select "Go to a page view" for the button's Action.
Thom Parker
The source for PDF Scripting Info
www.pdfscripting.com
Very Important - How to Debug Your Script