Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I think some mouse location feedback would be useful. Maybe just "x=%g y=%g" in the corner somewhere.
User interaction is on the to-think-about list for a while, no results or solutions so far...
