How to gather info similar to panopticlick.eff.org [closed]

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I saw that the website http://panopticlick.eff.org/ gather info about your browser, which makes you unique, even without cookies or IP tracking.

My question: How do you use javascript to see this info?

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There's a download in this article on corephp.com that includes javascript to fingerprint browsers and convert the results to an MD5 hash sum - probably not as heavyweight as panopticlick but it is pretty good.