I wouldn't do this type of complex thing in JS. Sounds like a job for a compiled plugin.
I added a button and set the trigger to Mouse Enter so that the action manages to occur when you move the mouse into that area. I managed to create a popup menu through JS that would appear, but haven't been able to just set it to popup another pdf. I'm trying to see if the popup would be able to show an excerpt or particular section from another pdf. Sort of as a quick reference for a reader so that they don't need to go opening and searching throguh another pdf. If that might be possible?
Thank you again so much.
It's possible to open a PDF, and have it go to a specific location in the file (say, based on a bookmark, or page number), but I'd be wary of putting that in a mouseOver for the field/button, which would happen any time the mouse enters that field/button. Unless you set a variable to only visit the 'link' to the 2nd file once, this would get really annoying for the end user.
Plus, it's not so much a 'popup' as you'd probably like it to be. You're opening another PDF over the first one.
Actually Liz, that would be possible but you would need to design your PDFs to allow this action.