Forkit: http://lab.hakim.se/forkit-js/
Might work for a short presentation/tutorial form, which is what I think this site is trying to do.
How would I build an index? Are tools included for that, or is it just reading an index? Is it building the index each time the page is loaded, or in advance, or is both possible?
While the slides explain, what a search engine is, they seem not really to explain, how I can use this particular search engine, which is a pitty, since this looks like a cool project.
This is the project page, but I cannot find such information there as well: https://github.com/reyesr/fullproof