need popup from wiki link

[Louis Masters]

I have a list of files that is displayed as a table (from a plugin) on one of my pages.  What I need to do is allow the user to click on the 
file name and have a popup appear with the file's content.  My first thought was custom coding a plugin with some sort of js popup (or some sort 
of javascript: interwiki), but I wanted to ask around to see if I can use any existing function of the wiki.

Thanks,
Lou