behavior - change text with picture
 

On this page, I have the right-hand side pictures connected to the main left picture with a behavior, so that when you click on the small thumbnail picture on the right the appropriate larger picture on the left appears.

Is there a way to make the text in the middle change when the larger picture changes as well? Maybe another behavior? Can you have one action (a click on a small thumbnail) affect two areas (the larger picture plus the text)? Each text group will need to have its own link to a specific url.

Yes. All you're doing on the images, with javascript, is changing the src attribute of the large image. In a similar way you can change the content of your <p> tag (the innerHTML). Have a look here for an introduction.

I'm not sure I understand the tutorial you linked to. Can you either explain it more or is there another easier way to do it?