Shoutbox

I think I know what you're doing wrong. When you say 'the file path isn't being saved to the variable', I'm going to assume you mean the variable named 'pm'. It looks just fine to me, 'pm' IS being assigned the file path, but the variable is being destroyed on the very next line when the function ends.

What you need to do instead, is read the value of the function when its being called. Thats what the 'return' function does.
So somwhere else in your script i suppose you are calling the BrowseForPM() function, and then checking the value of pm on the next line. Instead, check the value of BrowseForPm(), and you shall get your file path.