What is accessibility?

Web accessibility indicates the ability to access the web and its content by the greatest number of people, regardless of their navigation context or physical disability.
By “navigation context” we mean devices, browsers, Internet connection speed, preferences, browser or computer configuration, environmental conditions, etc.

Declaration of Commitment

We have created a Web site guaranteeing content accessibility compliant to the Accessibility Guidelines established by the Working Group WAI (Web Accessibility Initiative), part of the W3C (World Wide Web Consortium).
The use of Web standards established by the W3C, such as XHTML 1.0 Transitional for valid semantic markup and Cascading Style Sheets (CSS) for design, permits correct viewing of the website on different devices and platforms, as well as the appropriate printing of its content.
If you have any questions, suggestions, or problems with respect to our Web site, please contact us by sending an e­mail to the following address:

Pursuant icons

The web site satisfies the following points according to the most recent review on 09/09/08:

Compliance with Level “AA” of W3C WCAG 1.0

Declares that it complies with the Accessibility Guidelines for Web Content 1.0 at Double­A level. The link leads to an explanation of the levels of accessibility and the use of icons.

A Bikoitza Mailaren Onespen Ikonoa, W3C-WAIren 1.0 Web Edukirako Erabilerraztasuneko ikonoa


Declares that the XHTML Version 1.0 Strict language has been used correctly and that its syntax follows the grammar of that language. The link carries the W3C validator.

XHTML 1.0ko ikono balioduna


Declares that the syntax of the style sheets used is correct. The link carries the W3C cascading style sheet validator.

CSS ikono balioduna

Browsing help

Variable font size

In the design of the pages of this web site, relative units have been used, such as, for instance, in the size of the texts. The pages can be visualized correctly at any resolution and the user can vary the size of the text if this option is available.

Site map

The user can find an index of the web site pages in the site map.

Browser route

Users will always know what section/subsection they are in thanks to the browser route which they can find at the top of the page.

Keyboard accesses

Shortcut keys provide ease of use both for browsing and for access to contents. To use these keys, and depending on the operating system used, there are the following combinations of keys:

  • Internet Explorer 4.0, Netscape, Mozilla, Firefox: ALT + Keyboard shortcut key
  • More recent versions than Internet Explorer 5: ALT + Keyboard shortcut key + ENTER
  • Opera:Capitals + Esc (to activate the shortcut keys)
  • MacOS: CONTROL + Keyboard shortcut key

These are the shortcut keys provided for this web site:​

  • 0 Home.
  • 1 Jump to navigation menu.
  • 2 Skip to content.