Laws governing cookies on websites based in the EU changed on 26 May 2011. Now we must declare each cookie used on this website, its purpose and how to remove it.
We use Google Analytics, Facebook and Twitter cookies to enhance your experience on this website.
Google Analytics data is collected automatically when you visit the site. You can reject or delete Google Analytics cookies from your system by visiting http://www.google.com/intl/en/privacypolicy.html
Twitter and Facebook cookies are only used if you are already logged into these services prior to visiting this site, or if you click on the Follow, Tweet or Like buttons whilst on this site.
By using this website you accept the use of these cookies. You have also formally accepted all cookies, which will set a further cookie called ‘location’ with the value ‘accept’ on your machine that’s remembered this preference.
| Cookie name | Expires after | Description of cookie |
| _utma | 2 years | This keeps track of the number of times a visitor has been to the site, when their first visit was, and when their last visit occurred |
| _utmb | 30 minutes | A timestamp of the exact moment in time when a visitor enters the site |
| _utmc | End of session | A timestamp of the exact moment in time when a visitor leaves the site – having waited 30 minutes for another pageview to happen, and if it doesn’t, it expires |
| _utmz | 6 months | This keeps track of where the visitor came from, what search engine was used, what link was clicked on, what keywords used, and where in the world the site was accessed from |
| guest_id | 24 months | Identifiers of the Twitter account or guest. |
| k | 1 week | This is used for user IP tracking within Twitter to determine whether a user is logged in or logged out. |
| pid | 24 months | Used by the Tweet button for Twitter |
| js | Javascript cookie used by Twitter. | |
| datr | 24 months | This identifies the web browser being used to connect to Facebook independent of the logged in visitor. This cookie plays a key role in Facebook’s security and site integrity features |
| reg_fb_gate | End of session | This contains the first Facebook page visited |
| reg_fb_ref | End of session | This contains the first Facebook page visited |
