I've released the script as open source (GPL), and you can check it out in the software section of this site.
In preparation for a virtual seminar presentation I was giving last week, I decided to make a novel little way to present my slides. I only had a few, so I made them all visible in the background, and scripted each one to toggle to the foreground on demand. This has the advantage that all your textures are pre-loaded, plus it makes for a slightly more interesting display-mechanism than simply changing textures.
I've released the script as open source (GPL), and you can check it out in the software section of this site.