This site has been developed to ensure content is available to the widest possible audience and significant redesign has been undertaken on our site in order to meet those standards that relate to access for people with disabilities or technical constraints with their browsers and internet connections.

If you are unable to use any part of this site, please contact the webmaster and we’ll do our best to make it easier.

Navigation Aids

All pages on this site use structured semantic markup. H1 tags are used for main titles and H2, H3 etc for hierarchical sub-headings.

Each page has the main menu shown on the top of the page for ease of access. A further sub menu is available on the left side for quick navigation to commonly used links.

Changing The Text Size

When designing this site, we picked what we considered a suitably sized font. However, we also had to make sure we could get as much information as we could on the screen to make it easier for you to find your way round the site. If you would find it help to have larger text, you can change this yourself.

Most modern browsers allow you to increase or decrease the size of the text on the screen by zooming in and out. This can be achieved by holding the ctrl key while pressing either the + or – on the keypad at the same time. This will increase or decrease the text on the site.


This site has been designed to be usable on as many devices and in as many screen resolutions as possible. To this end we have used scalable widths as much as possible so that the site is readable on most devices.

If you have a device on which the site is not usable, please contact the webmaster with details of your device and its screen resolution.

Support For Legacy Browsers

In order for us to bring this site to the widest audience possible we have had to use technologies that are not supported by older browsers such as Internet Explorer 6 and below. We therefore urge you to upgrade your browser for both usability and security reasons.