Make a simple dynamic button in MX 2004

I am working on a project that involves basic buttons in flash. They have 2 functions. One is to go to a url and the other is to execute a movie clip within the flash movie.

I dont want my developers to open flash to code the page links (i.e. contact.html). Is there a way to just add a variable of some kind in the GetURL() and have it pull from an .xml file? It can be very basic. There will be no need to dynamically add more buttons, just simply change link names on the fly.