Thank you. The site pulls in scripts and other stuff from more than a few off-site domains, which I normally block. I guess I missed one when trying to find the important piece.
We used to roll our own Javascript for the Top Programming Languages, which e.g. computed rankings on the fly, but it became unwieldy to maintain, and readers didn't take advantage of things like the ability to set their own weightings. So we shifted to pre-computing the rankings three years ago, and use a specialized tool for straight visualization.