I'm just wondering if it's possible -- and then how to do it -- to have an image link to a popup that's not already on my site.
I don't know all the terminology...but basically, I want to have an image of a book cover on a page -- and when you click on it an excerpt from the book comes up in a separate window. But I don't want to have that excerpt page already there in my "Pages" list that's visible at the top of the page. I know how to link to an existing page, but how can I link to one that's not otherwise visible? Can I do this on WordPress?