Brainfuck interpreter

Brainfuck is a rather pointless, but Turing-complete, programming language. Here's a Brainfuck-to-Javascript translator that I wrote out of boredom. No guarantees that it works properly (or, for that matter, that it works at all since the site redesign), but Wikipedia's "Hello World" sample worked at least once.

Generated code:

Note that running scripts on this page may cause your browser to run slowly or crash. No warranty at all. May contain nuts. 99.9% empty space.