Just found this page. I've been working on a Voronoi demo applet using Javascript/canvas, after translating into Javascript a C# version of Steven Fortune's algorithm by Benjamin Dittes (available at Code Project, see "Fortune's Voronoi algorithm implemented in C#"). Here is the page which include Fortune's Voronoi algorithm in Javascript:
http://www.raymondhill.net/voronoi/voronoi.php
This is a first iteration, I plan to adapt it further to be better suited to Javascript. Hope this helps.
