Accessibilityfont resizing - access keys - example - standard keys - references
You can change the text size via a Text Size or Zoom option in the View menu of Internet Explorer or FireFox. Other browsers may have similar options. This works for all web pages on this site and most modern web pages.
For more details, see Access in different Browsers (wikipedia) For instance, With FireFox on Windows you can use Alt + Shift + the access key to activate the key immediately - no need to press Enter.
So for instance, to get to the home page, in Windows use Alt + 1, then press the Enter key. On the Macintosh, use Ctrl + 1.
In the case of the home page, where this takes you to depends on where you are in the site. When you are browsing one of the products, it takes you to the home page for that product. Otherwise, takes you to the products page listing all the products available.
We have implemented the UK Government guidelines for recommended access keys - which have become something of a de facto standard.
(see Building in universal accessibility + checklist section 2.4.4)
Here is the complete list of recommended access keys
So, S, and the number keys are standard and follow the UK Government guidelines. The other letter keys, here X and Y, are site specific.
Access keys are supported by FireFox, Internet Explorer 4 or above, and Netscape 6X versions.
For more about access keys, and other links, see Access Keys (wikipedia article)