Our website uses cookies to distinguish you from other users of our website. This helps us to provide you with a good experience when you browse our website and also allows us to improve our site. By continuing to browse the site, you are agreeing to our use of cookies.

A cookie is a small file of letters and numbers that we store on your browser or the hard drive of your computer if you agree. Cookies contain information that is transferred to your computer's hard drive.

We use the following cookies:

• Strictly necessary cookies. These are cookies that are required for the operation of our website. They include, for example, cookies that enable you to log into secure areas of our website.

• Analytical/performance cookies. They allow us to recognise and count the number of visitors and to see how visitors move around our website when they are using it. This helps us to improve the way our website works, for example, by ensuring that users are finding what they are looking for easily.  

• Functionality cookies. These are used to recognise you when you return to our website. This enables us to for example personalise our content for you, greet you by name or remember your preferences (including your choice of language or region).

You can find more information about the individual cookies we use and the purposes for which we use them below:

Cookie: has_js

Name: ‘Has Javascript’

Purpose: Allows the server to know if it can depend upon using javascript in client side requests (in your browser).

Cookie: [session id]

Name: ‘Session’

Purpose: Used to log in. Set on any page when a visitor arrives. This cookie is essential for our site to allow you to use our site in a way that makes your visit more convenient, for example, if you register with us or complete our online forms, we will use cookies to remember your details during your current visit, and any future visits provided the cookie was not deleted in the interim.

Cookie: __utma, __utmb, __utmc, __utmz, ___utmv

Name: Google Analytics

Purpose: These cookies track use of your website as an anonymous user.These cookies are set or updated on any page visited. Several cookies are set but all serve the same purpose of how people reached the site and used it including search terms used and referring sites. These cookies are essential for our site to estimate our audience size and usage pattern.

More information: https://developers.google.com/analytics/devguides/collection/analyticsjs/cookie-usage

Please note that third parties (including, for example, advertising networks and providers of external services like web traffic analysis services) may also use cookies, over which we have no control. These cookies are likely to be analytical/performance cookies or targeting cookies.

You block cookies by activating the setting on your browser that allows you to refuse the setting of all or some cookies. However, if you use your browser settings to block all cookies (including essential cookies) you may not be able to access all or parts of our site.

Except for essential cookies, all cookies will expire after two years.

This page was updated on Thursday 22 October 2015.