And here is a JavaScript triangle demo from someone that has far to much time on their hands.
I think someone should start a JavaScript demo-scene and something tells me that this is clever enough to be the official launch.
Most JavaScript ‘demos’ I have been just that – demonstrations – either of frameworks or coding tricks. I don’t count the some of the ray-tracer demos of past eligible. I’m not sure why, maybe because its just a port of an algorithm.
For some reason this particular demo makes me wave my hands in the air and declare the JavaScript demo scene officially exists.
Let the fun begin!
James McParlane's Blog 
There’s a browser demo category in the demoscene, most of which are flash… but there’s one or two javascript entries in this category! <a href="http://www.scene.org/file.php?file=/parties/2005/assembly05/browser_demo/06_pure_javascript_demo_by_iku.zip&fileinfo">Zounds!</a>
Hello, the JavaScript demo scene exist since a few years now. See [1], and especially the work of Matthew ‘gasman|shingebis’ Wescott [2] and Mathieu ‘p01/ribbon’ Henri [3]
[1] http://pouet.net/prodlist.php?order=release
[2] http://matt.west.co.tt
[3] http://www.p01.org