// Get the __utmz cookie value. This is the cookies that // stores all campaign information. // utmcsr = campaign source // utmcmd = campaign medium // utmctr = campaign term (keyword) // utmcct = campaign content (used for A/B testing) // utmccn = campaign name // utmgclid = unique identifier used when AdWords auto tagging is enabled // custom segmentation is stored in __utmv cookie value