Accessing and using this site
This web site is designed and built to W3C coding standards and allows equal access to people with disabilities using technologies other than standard web browsers, such as screen readers.
To navigate through this site, please use the main menus at the top and sides of the page. Your screen reader will read the menu to you and provide access to the content on the page.
Font size and page zoom
You can easily use your browser to change this document’s font size.
In Internet Explorer for Windows, select: Page > Text Size > and choose your size.
For best results, you can also zoom in by choosing Page > Zoom or by pressing Ctrl+ or Ctrl− to zoom in and out of the page.
Style sheets are used to control the look and layout of the site, however content is still readable when styles are disabled or if you are using a text-only browser.
If you have a PDF reader installed on your computer such as Adobe Reader, PDF documents are likely to appear within your browser window when you click on them. The latest version of Adobe Reader can be downloaded from the Adobe website at get.adobe.com/reader
To access a PDF using Mozilla's Firefox web browser on a Apple Mac computer, a window will appear when you click on a download link. Choose 'Open with' and select an application to open the PDF with.
Some downloads require you to provide us with details such as your name and email address. After submitting these details, the download links within the page will then take you to the relevant PDF document. These downloads will be available until you close your browser window.