Very basic question about Classes

[RansomHostage]

Thanks for the response, Ralgoth! I think I understand how to use functions better now.

Sadly, the code doesn't work. Clicking on the button does nothing (I replaced the gotoAndStop with a trace and it doesn't show when clicked). Is it because the MC is not Linked in any way? Or do I need some code on the main timeline to import the buttonWorks class?

Edit: I hadn't set the Document Class. Thanks again for your help!