Lloyd's algorithm? Voronoi/Worley Noise

Ok So I have a question, I have been trying desperately to find someone that implemented a JavaScript library for producing different noise algorithms.

I have Perlin2D covered but would like to support more.

I need to be able to call the generator like noise.worley2D(x/xdiv, y/ydiv, seed); and have a response that will give me an reproducible response depending on the seed.

Every bit of documentation I can find does not help me with actually achieving this.