2009-Feb:  As an experiment in dynamic-CSS I wrote this slideshowing script.  It is a work in progress, as is this description page...

Here is the javascript code.

Here's an example of a page using it.

Note: is intended for use in Standards mode, ie: with a DOCTYPE specifying HTML-4.01-strict.  I have yet to describe the required CSS for this script, however the example will illustrate, as will my yet-to-be-published generating-script.