I wasn't sure where to post this, and in fact, it's not really even a Processing question!

I'm going to be taking part in an exhibition, which will include having some interactive (via infrared-sensitive webcams) Processing sketches projected one after the other onto a screen. Several different sketches will be included, all running on one computer and being projected by one projector. I'm trying to think of a way to automatically transition between the different Processing sketches, without people seeing the details of one program ending and another starting up. All I want them to see is that a new interaction has taken over from the previous one.

I've considered embedding Processing applets in web pages and using Javascript/HTML to advance to the next page, but there will be a delay (and the Processing icon will display) as the applet initialises on the new page. I thought of maybe exporting the sketches as applications, and using a batch file to start one .exe file, pause for however long the sketch is to run, then start the next .exe file, but that wasn't working for me either. Maybe I'm not familiar enough with batch files.

I suppose all of the different interactions could be put together into one Processing sketch and then I could just use a timer in the code to move from one section to the next, but I didn't want to risk depending on one sketch to handle everything. If the different interactions are complex, I'm not sure how well the computer I'll be using would handle this either.

Could anyone offer any suggestions for doing what I'm suggesting. I hope I've been clear in my description.

Now that I think about it again, I suppose any strategy will have a startup delay, so what I really need is a way for the Processing sketch to be up and running and then some way of tranferring focus (fading?) automatically from one running sketch to the new one, and exiting the first one.

Thanks in advance