Online Reaction Time Test

General permission to use this timer:

A number of people have e-mailed me to ask permission to use this timer in school projects, scouting events and similar non-profit situations. I hereby give general blanket permission ("Yes") for these types of uses, under the following conditions:

• Not used for profit or commerce.
• Users accept the fact that I have made no effort to test, certify, or corroborate the results of the timer. The timer is a javascript programming exercise, not a scientific instrument. In writing this javascript, I have relied upon the javascript spec and the internal computer clock. I have coded the javascript as best as I could, but I have not timed the timer.
• Users acknowledge that I do not guarantee the accuracy of the timer. The timer is only as accurate as the computer, browser and javascript engine processing the code. When more applications are running on the same computer, the timing quality deteriorates. Computers which are online, or which are playing cds or dvds, or which receive mail during timing, may lose accuracy. Other similar conditions cause the timer's accuracy to diminish. (Try to minimize these events.)