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Cookies are small text files placed on your computer by this website, which we can access during your visit and when you visit our site in future. You can learn more about cookies at

The cookies used by this website are as follows:

1. YouTube videos

Some YouTube videos are embedded in this site, and the YouTube video player may set cookies when you interact with it.

We use the privacy-enhanced mode for embedded videos, which Google describes as follows:
This mode restricts YouTube's ability to set cookies for a user who views a web page that contains a privacy-enhanced YouTube embed video player, but does not click the video to begin playback. YouTube may still set cookies on the user's computer once the visitor clicks the YouTube video player, but YouTube will not store personally identifiable cookie information for playbacks of embedded videos using the privacy-enhanced mode.


2. Sign in cookies

If you click the Sign In link, a session cookie called returnurl1 is set by the content management system (CMS) to remember which page to redirect you will to after logging in.

If you log in successfully, two additional cookies are set to enable the site to remember who you are.

How to disable cookies

Most web browsers allow you to disable cookies (for selected websites or for all websites) by adjusting your settings – please see the documentation for your browser, or see for instructions for the most popular browsers.

Disabling cookies will not prevent you using the public part of this website, but you will not be able to sign in. Some functionality of the YouTube player may also be restricted.

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