We are committed to making our website as accessible as possible to all.
To make our website easy to view, we have designed it in accordance with guidelines set out by the Web Accessibility Initiative (WAI).
The site requires JavaScript to run so please ensure that your browser or screen reader is configured to allow it.
Please note that if you change the font or contrast using the controls at the bottom of the screen you may lose any unsaved work.
If you use screen magnification, scrolling may be required to view elements of our web pages.
The website can be viewed across a wide range of browsers.
We recommend Microsoft Internet Explorer Version 7.0 or later, Mozilla Firefox, Google Chrome or Apple Safari to take full advantage of all our website's facilities. Firefox, Chrome and Safari are all updated regularly by their manufacturers and if you keep your installed version reasonably current then you should have no trouble with our site now or in the future.
The site is optimised for a screen resolution of 1024 x 768. Shortcuts to change the font size and contrast settings have been placed in the footer of this page.
Please note again that if you change the font or contrast using the controls at the bottom of the screen you may lose any unsaved work.
Screen readers supplied with your operating system add speech and reading support to online content.
Windows users
Windows Narrator has been supplied since Windows 2000 and can be started by pressing the following keys:
For Windows 10: Control + Windows + Enter.
For Windows 8: Windows + Enter.
For Windows 7: Ctrl + Shift + Enter.
Apple Mac users
Apple Voiceover has been available since Mac OS 10.4 and can be started using Command-F5 or Fn-Command-F5
If you have experienced a technical problem using this site, please contact us using the technical query link in the bottom left of the main page of this site.