Cookies are small files which are stored on a user's computer. They are designed to hold a modest amount of data specific to a particular client and website, and can be accessed either by the web server or the client computer. This allows the server to deliver a page tailored to a particular user, or the page itself can contain some script which is aware of the data in the cookie and so is able to carry information from one visit to the website (or related site) to the next.
If you want to disable cookies in your browser, you can set your browser accordingly using its menu bar. You should be aware that if cookies aren't enabled on your computer we are unable to personalise and improve our service to you.