JavaScript Slideshow (increment preload image)

This is a unique slideshow script that, unlike most other, will intelligently preload its images one at a time, while the preceding image is being shown. The script will actually "wait" until the next image is successfully preloaded before continuing, trying again if not. Contrast that to other slideshow scripts, which mindlessly preload all of their images beforehand. Use this script if your slideshow contains a lot of heavy duty images, and you don't want your visitors to wait forever (literally) before he/she can see the slide.