JavaScript Sudoku Solver

(Because I have to do everything in javascript)
I slapped together a web-based sudoku solver a while back, and it pretty much stunk.
I’ve updated it, included new algorithms. In most cases, this new version will work much faster. It actually uses the same type of solution method that I would use with pen and paper. The difference is, the JavaScript sudoku solver will actually get the correct solution. Still the algorithm isn’t as smart or as efficient as a human would be, but it is much faster and less prone to mistakes. This is the reason I own a computer. I’m talking too much. Here is the sudoku solver.