Setting cookies helps us improve your experience of our website.
A cookie is a piece of information in the form of a very small text file that is placed on an internet user's hard drive. It's generated by a web page server, which is basically the computer that operates a web site. The information the cookie contains is set by the server and it can be used by that server whenever the user visits the site. A cookie can be thought of as an internet user's identification card, which tell a web site when the user has returned.
Further information about cookies can be found at http://www.aboutcookies.org.