I got tired of using the OpenGL ES 2.0 reference at http://www.khronos.org/opengles/sdk/docs/man/ so I downloaded it and packaged it into a slightly more usable form.
Note it really only works in Firefox because the fine folks at khronos seem to think MathType is really cool to use even though it's totally unnecessary.
Why use a frameset? Apparently Firefox's mathml support only kicks in if a document is loaded in a window or frame. Loading into a div directly seems to bypass it.