This website uses cookies. We use cookies to provide social media features and to analyse our traffic and to make certain features work (for example the navigation menu).

We use the following types of cookies on our site, Required and Statistics.

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Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings.

Essential Cookies

Essential cookies are used to maintain your session whilst you are on this site and help us maintain certain bits of information, for example your response to which cookies you want to use.

Name	Purpose	Expiry
CFID	This is a session cookie and is necessary for the operation of the site.	1 day
CFTOKEN	This is a session cookie and is necessary for the operation of the site.	1 day
SBCOOKIECONSENT	This cookie allows us to remember what choices you made relating to cookies you want to use on this site	1 year

Analytic Cookies
Analytic cookies allow us to analyse the traffic on our website to help us see how users interact with the site.  Any data is collected anonymously.

Name	Purpose	Expiry
__UTMA	Used to distinguish users and sessions. The cookie is created when the javascript library executes and no existing __utma cookies exists. The cookie is updated every time data is sent to Google Analytics.	2 years from set
__UTMB	Used to determine new sessions/visits. The cookie is created when the javascript library executes and no existing __utmb cookies exists. The cookie is updated every time data is sent to Google Analytics.	30 mins from set
__UTMC	Set for interoperability with urchin.js. Historically, this cookie operated in conjunction with the __utmb cookie to determine whether the user was in a new session/visit.	When browser closed
__UTMT	Used to throttle request rate, used by Google Analytics	10 minutes
__UTMV	Used to store visitor-level custom variable data. This cookie is created when a developer uses the _setCustomVar method with a visitor level custom variable. This cookie was also used for the deprecated _setVar method. The cookie is updated every time data is sent to Google Analytics.	2 years from set
__UTMZ	Stores the traffic source or campaign that explains how the user reached your site. The cookie is created when the javascript library executes and is updated every time data is sent to Google Analytics.	6 months from set