Makes a robust determination of a user's timezone through Javascript.

/* 
 * Original script by Josh Fraser (http://www.onlineaspect.com)
 * Continued by Jon Nylander, (jon at pageloom dot com)
 * Refactored to be more "library"-like by Rowan Crawford (wombleton at gmail punctuation com)
 * According to both of us, you are absolutely free to do whatever 
 * you want with this code.
 * 
 * This code is  maintained at bitbucket.org as jsTimezoneDetect.
 */