We use a number of different cookies on our site. If you do not know what cookies are, or how to control or delete them, then we recommend you visit http://www.aboutcookies.org for detailed guidance.
The list below describe the cookies we use on this site and what we use them for. Currently we operate an ‘implied consent’ policy which means that we assume you are happy with this usage. If you are not happy, then you should either not use this site, or you should delete the cookies having visited the site, or you should browse the site using your browser’s anonymous usage setting (called “Incognito” in Chrome, “InPrivate” for Internet Explorer, “Private Browsing” in Firefox and Safari etc.)