In that regard, I started a project on the weekend that I wasn't sure was possible: creating a fully secure "ajax"-powered login system, ideal for blogs, forums, and other similar sites. I had a barebones secure case working within a few hours, and a few more hours gave the final result that I will share today.

Yes.

I was a happy camper when LiveJournal added such a thing, but this is even cleaner and easier.