The website has been designed with accessibility in mind, and uses Accesskeys to make browsing more convenient.

The Accesskeys used by this site are designated as follow:：

Top-main area, midst-content area, Left-selection area

The Accesskeys used by this site are designated as follow：

• Alt + U：Upper block, containing the links to the services of this site, search box, font size setting and versions of this site.
• Alt + C：The central content area is the main content area of this page.
• Alt + Z：Footer site information.
• Alt + F：Switch font size.