jQuery - detecting the operating system and operating system version

Question

I have been writing a userscript for the past few months, for my company, and have just designed the main site for it with installation instructions (our employees are based

Answer 1

You can use this great javascript library: http://www.visitorjs.com/details It is open-sourced recently

Edit: Actually, it is now renamed to session.js http://github.com/codejoust/session.js and to my knowledge, that is the best you can get.