A cookie is a data file, which often includes a unique identifier, that is sent to your browser from a web server and is then stored on the hard drive of the device you are using to browse the website. Each website you visit can send its own cookie to your browser if your browser's preferences allow it, but to protect your privacy your browser only permits a website to access cookies it has already sent to you, not cookies sent to you by other sites.
Users have the opportunity to set their devices to accept all cookies, to notify them when a cookie is issued, or not to receive cookies at any time. Each browser is different, so check the 'Help' menu of your browser to learn how to change your cookie preferences. Please be aware that blocking cookies may affect the functionality of this website.
How to control and delete cookies
If you wish to restrict or block the cookies which are set on this website (or, indeed, on any other website) you can do this through your browser settings. The 'help' function within your browser should tell you how.
Alternatively, you may wish to visit http://www.allaboutcookies.org/
which contains comprehensive information on how to do this on a wide variety of browsers. You will also find details on how to delete cookies from your computer, as well as more general information about cookies.
Please be aware that restricting cookies may mean that you will not be able to take full advantage of all the features or services available on this website.
We collect and send anonymous cookies to Google Analytics. These cookies are used to collect information on how users view our site. We use this information to help us improve the site. They do not collect any personal information and are used for no other purpose. To find out more about opting out of Google Analytics visit