This website is designed to be compliant with the W3C's XHTML 1.0 Strict specification. While every effort is made to ensure compliance with this specification, occasional errors can occur which can invalidate individual pages.
If you do come across any errors or an invalid page, please let us know by using our technical support form and we will endeavour to correct the page.
All pages employ structured, semantic markup and rely on CSS to govern their presentation. Thus, the entire website should be usable with any browser on any platform, including (but not limited to): text browsers, screen readers and handheld PCs.
Bobby, a free service to analyse web pages for compliance to accessibility guidelines.
HTML Validator, a free service for checking that web pages conform to published HTML standards.
Web Page Backward Compatibility Viewer, a tool for viewing your web pages without a variety of modern browser features.
JAWS, a screen reader for Windows. A time-limited demo is available.
Lynx, a free text-only web browser.