Patrick writes:

And this works fine.Now, I want to change render-image_dtml so that new images are loaded everytime the page is refreshed by a certain user and so that the images change automatically if the same page is viewed for say, 5 minutes. Any ideas? If you want the images chosen randomly (from an image reservoir), then you can use the "whrandom" module, available via the DTML namespace.

In any case, the solution depends on how you want to select the images to be displayed during a refresh .... Dieter