My first jQuery plugin: Electric Slide, a slideshow for text and code

For the past few months I've been very interested in figuring out how to communicate programming ideas well. My friend Pat put together a great way to show what happens to some Ruby code as it's evaluated, and I put together this plugin to make it easier to do what he did.

In the introduction, which I've linked to, I've tried to explain what the plugin does, how it's useful, and the basics of how to use it. I'd love any feedback on the code or on my attempt to explain it. Thanks!