The Built-in Popup Function
This page deals with displaying popup images using the built-in function in SiteSpinner.
Use a popup image to display a larger image if the viewer clicks on a small image (called a 'thumbnail'). The advantage of this is page loading speed -- your viewer does not download a lot of images they do not want. On the other hand, they download only the images they do want. Because your viewer downloads all the thumbnail images, even the ones they are not interested in, you should make your thumbnail images small in terms of file size.
Here are typical examples of popups -- click on an image: