For those using screen readers, the content comes before the navigation on each page. At the beginning of each page there are links to skip to the navigation and the content.

The pages on this website are all print-friendly.

Headings have been used as appropriate to provide page structure.

Structure and presentation have been completely separated - the HTML documents contain just the text that you see on the screen and some structural tags, the presentation is provided through css.

All text is specified with a relative font size, which allows it to be resized if necessary.

All informational images have descriptive ALT text, images without meaning (purely for decoration) are either specified as background images through CSS or have a null ALT attribute so they are ignored by screen reading software.

Our aim is to make this website accessible to everyone. If you experience any kind of problem or have any feedback about it please e-mail This e-mail address is being protected from spambots. You need JavaScript enabled to view it .