We are committed to providing a website that is accessible. Our website has been developed with this in mind and is designed for use with Internet Explorer 6, Internet Explorer 7, Firefox, Opera and Safari. We believe that, wherever possible, it meets all the priority level 1 criteria of World Wide Web Consortium's (W3C's) Web Content Accessibility Guidelines.

Partially sighted users - changing the font size

You can change the font size of the text used on our web pages. If you’re using Internet Explorer, select "View" from the menu bar, then "Text Size" and select from "Smallest" to "Largest". In Mozilla Firefox, select "View" from the menu bar, then "Text Size" and select from "Increase" to "Decrease".

Colour-blind users

We have checked the site’s font and background colour combinations for the different colour-blindness conditions and we have ensured that items are not referenced by colour alone. If you wish to change the colour of text and background by introducing your own style sheet, please follow the instructions in Changing the style sheet below.

Keyboard-only users

The pages on the site have been tested for keyboard-only users. When using the forms or controls for the tools, the keys to use are as follows:

• To select from dropdown boxes, use up and down arrow keys.
• To select/unselect a check box, use the space bar.
• To move forward between links, use the tab key.
• To move back between links, use the Shift + tab keys.
• To initiate an action button, use the Enter key when the action button is selected.

Changing the style sheet

You may import your own style sheet into the website. In Internet Explorer, select Tools, then Internet Options and then Accessibility. Then click on any or all three checkboxes to ignore colours, font styles or font sizes. In the same window, you can change the style sheet by clicking the checkbox that says "Format document using my style sheet", then simply browse to your preferred style sheet and click OK. In Mozilla Firefox, you can change your font and colour settings by selecting "Tools" from the menu bar, then "Options" and select from "Fonts & Colours".

Questions and feedback

If you have any questions or feedback on our Accessibility Policy, please e-mail us using the Feedback facility on the site, so that we can consider your comments in detail.