Accessibility Statement: we aim to make our sites accessible to all

This is the official accessibility statement for If you have any questions or comments, feel free to email us at

Access keys

Most browsers support jumping to specific links by typing keys defined on the web site. On Windows, you can press ALT + an access key; on Macintosh, you can press Control + an access key. All pages on this site define the following access keys:

Standards compliance

All pages on this site is WCAG AAA approved, complying with all priority 1, 2, and 3 guidelines of the W3C Web Content

Accessibility Guidelines

All pages on this site validate as XHTML 1.1 and valid CSS.
All pages on this site use structured semantic markup. H1 tags are used for main titles, H2 tags for subtitles, H3-4 etc.

Navigation aids

The Site map (Access Key 0) links you to all the pages within the website.
If CSS is switched off or not available you, you can skip to the main menu (Access Key 2) or to content (Access Key 3) to navigate the page.


In most cases links have title attributes which describe the link in greater detail, unless the text of the link already fully describes the target content.
Links’ anchor text is written to make sense within the context of the page.


All content images used in this site include descriptive ALT attributes.

Visual design

We use structural mark up/cascading style sheets for visual layout.
This site uses only relative font sizes, compatible with the user-specified "text size" option in visual browsers.
If your browser or browsing device does not support stylesheets at all, the content of each page is still readable in a cohesive manner.

Accessibility references