1. What are cookies?
Cookies are small text files that are stored on your computer when you visit web pages. Cookies won't harm your computer - they just provide information.
2. Essential cookies
Some cookies are necessary for the functioning of this website and cannot be switched off in our systems. These cookies do not record any personal data. Essential cookies normally expire when your browser is closed.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. These cookies normally expire after two years.
4. Change cookie settings in your browser
Most web browsers allow some control of cookies through the browser settings. Find out how to manage cookies on popular browsers:
Microsoft Internet Explorer
To find information relating to other browsers, visit the browser developer's website.