This website uses cookies. Continue browsing if you consent to this, or view our privacy policy.


Cookies are text files sent to your computer and used by your web browser to store information. The cookies we use allow your browser to remember whether you've visited our site before and what your preferences are. 

As with most websites we use cookies to improve your user experience by enabling our website to 'remember you', either for the duration of your visit (using a 'session cookie') or for repeat visits (using a 'persistent cookie'). There are also use two different types of cookies - first party (which we own) and third party (where we allow a third party, such as Google, to set cookies on your computer or mobile device). 

Cookies do lots of different jobs, like letting you navigate between pages efficiently, storing your preferences, and generally improving your experience of a website. Cookies make the interaction between you and the website faster and easier. If a website doesn't use cookies, it will think you are a new visitor every time you move to a new page on the site - for example, when you enter your login details and move to another page it won't recognise you and it won't be able to keep you logged in. 

How to refuse or withdraw consent 

Although the cookies we use on this website are quite harmless and do not reveal your identity, not everyone wishes to have text files downloaded onto their computer or mobile device. If you prefer, it is possible to block some or all cookies, or even to delete cookies that have already been set; but you need to be aware that you might lose some functionality on this website. 

You can manage how cookies engage with your computer or mobile device via your browser (e.g. Internet Explorer, Chrome, Safari, Firefox, Android), so you are alerted when cookies are sent or you can refuse cookies altogether. You can also delete cookies which have already been set. 

There is also a very useful website explaining how to control your interaction with cookies - please visit this site for more information: About cookies 

Cookies on our website 

On this website we use only a small number of cookies. They are: 

Google analytics cookies 

  Name       Owner        Lifespan       Purpose 

__utmv     Third party     2 years      This is used for user-custom variables in Google analytics 

__utma     Third party     2 years      This stores each user's amount of visits  

__utmb     Third party     2 years      This stores how long a user stays on the site  

__utmc     Third party     Session      This stores how long a user stays on the site  

__utmz     Third party     6 months   This stores where a visitor came from (e.g. search engine) 

Site specific cookies 

We only store one cookie, named 'PHPSESSID'. It is a first party cookie, lasting for the user's session (i.e. until they close their browser window). We do not use this cookie to store any personal information, it is used exclusively for basic user preferences when browsing the site.