We aim to have this site easily viewable and accessible to everyone, regardless of technology (browser or computer equipment), or ability. We are continually making improvements to the accessibility and usability of this website, based on available standards and guidelines, as well as feedback from our website visitors.
Web accessibility standards
This website endeavours to conform to level AA of the World Wide Web Consortium (W3C) Web Content AccessibilityGuidelines (WCAG) 2.0 Furthermore, it also complies in most respects with the Level AAA checkpoints.
In the coding of the site, we strive to adhere to valid XHTML and CSS, so that the site displays correctly in current browsers, and any future browsers will also display it correctly.
Due to the dynamic nature of this website, with content being updated and added daily, it is not always possible to guarantee that all areas of the website are at the same level of overall accessibility. We use standard templates and style guidelines in order to strive to the highest possible accessibility. In addition, the overall site accessibility is reviewed regularly.
Should you experience any difficulty in accessing this website, please do not hesitate to use our online feedback form.
Whilst we aim to present content in a native browser format, this site may also include file attachments. The non-HTML files downloadable from this site – such as Adobe PDF files – may present accessibility problems. Download the free Adobe PDF Reader so that you can access PDF downloads on this website and others.
If you have a problem accessing PDF files or any other information on the site, please contact us using our online feedback form.
This site has been specifically tested with the following browsers:
On a PC
- Internet Explorer 5.5
- Internet Explorer 6
- Internet Explorer 7
- Firefox 3.0
- Opera 6.6
- Lynx text-only browser.
On a Macintosh
- Safari 3.1.2 on Macintosh
- Firefox 3.0.3 on Macintosh
The site has been tested with selected mobile devices, including mobile phones and iPod touch.
Specific accessibility features
The text sizes on this site are changeable simply by clicking on the text size indicators, the 'A' buttons, found on each webpage above the top navigation headings. Alternatively, you can use the browser’s controls to change the text size as follows:
In Internet Explorer 6, select
View – Text size - Largest/Larger/Medium/Smaller/Smallest
In Internet Explorer 7, select
Page – Text size - Largest/Larger/Medium/Smaller/Smallest
<Ctrl><+>increases the font size and <Ctrl><-> decreases it
Colour schemes and contrast
We have aimed to provide a reasonable contrast throughout the site so that it is usable by anyone with a colour vision deficiency. Information is always conveyed by text or markers in addition to colour. In addition, a high contrast version of the website can be viewed by clicking on the contrast icon (the black-on-white 'A' button, found on each webpage alongside the text resizing buttons).
The requirement for access keys has been removed from the WCAG 2.0 recommendations, as due to the browser implementation, they can conflict with the user’s existing controls. Therefore this site does not use access keys.
Pre-filled form fields
The old web accessibility guidelines used to recommend that “until user agents handle empty controls correctly, include default, place-holding characters in edit boxes and text areas.”
Usability research has shown that pre-filled text fields can cause difficulties for some modern screen readers.
This previous requirement for placeholding text has been removed from the WCAG 2.0 recommendations. This site is thus not use placeholder text inform fields.
How to contact us
Should you experience any difficulty in accessing this website, or if you have suggestions on how to improve the usability and accessibility of this website, please do not hesitate to use our online feedback form.