As others have mentioned I'm using Github's Gist system for embedding code snippets. Makes it much easier to maintain and update, and also provides syntax highlighting and the ability for people to fork the snippet.
Apologies that you weren't able to see the samples. I'll have to consider how to manage that.
He has JavaScript disabled. The code samples are provided by github's gist stuff. It's an interesting example of JavaScript being used to render rather than enhance, complete with a lack of graceful fail.
If you have javascript disabled you should be used to pages not rendering sometimes, not the best practice, but common enough to not be surprised if something is off.