How do I make a hyperlink, when clicked on, say something?

I’ve checked out the hyperlink extensions out there, and while they may be great, I don’t want them to do actual commands. I would prefer that they simply say something or display an image or something along those lines. Is this possible to do?

Thanks!

This is easy, actually. Emily Short’s basic hyperlinks extensions provides a rulebook for customizing what happens when you click a link. There’s no reason it needs to execute a command.