Cookies are small files which are stored on a user's computer/device. They are designed to hold a small amount of data specific to a particular client and website, and can be accessed either by the web server or the client computer. This allows the server to deliver a page tailored to a particular user, or the page itself can contain some script which is aware of the data in the cookie and so is able to carry information from one visit to the website (or related site) to the next.
For more general information on cookies see the Wikipedia article on HTTP Cookies.
You can prevent the setting of cookies and erasing cookies by adjusting the settings on your browser (see your browser Help for how to do this). Be aware that disabling/deleting cookies will prevent you from logging in to the website you are trying to reach. Therefore it is recommended that you do not disable/delete cookies.
Login related cookies
Forms related cookies
When you submit data through a form such as a login page, cookies may be set to remember your user details for future correspondence.
Site preferences cookies
In order to provide you with a great experience on this site we provide the functionality to set your preferences for how this site runs when you use it. In order to remember your preferences we need to set cookies so that this information can be called whenever you interact with a page is affected by your preferences.