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Cookie Policy

This website uses “cookie” technology. A cookie is a small piece of data or a small text file stored by the browser on your computer, at the request of our server. We may use cookies to deliver content specific to your interests and to save your personal preferences so you do not have to re-enter them each time you connect to our website – our cookies are not available to other websites.  In particular cookies enable us:

  • to measure visitor traffic to our website and their usage patterns
  • to store information about your preferences, and so allow us to customise our website according to your individual interests
  • to speed up your searches
  • to recognise you when you return to our website.

The table below explains the cookies we use and why.

Name Purpose Activated Expires
Initiated by this website
PHPSESSID The PHPSESSID cookie is native to PHP and enables websites to store serialised state data. It is used to establish a user session and to pass state data via a temporary cookie, which is commonly referred to as a session cookie. (expires when you close your browser) On visit When you close your browser
Initiated by Google Analytics | Read More
__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. On visit After 2 Years
__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. On visit After 30 Minutes
__utmc Not used in ga.js. 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 On visit When you close your browser
__utmt Used to throttle request rate. On visit 10 Minutes
__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. On visit After 6 Months

What are my choices regarding cookies

If you’d like to delete cookies or instruct your web browser to delete or refuse cookies, please visit the help pages of your web browser.

Please note, however, that if you delete cookies or refuse to accept them, you might not be able to use all of the features we offer, you may not be able to store your preferences, and some of our pages might not display properly.