This website is built according to the principles of accessible web design. The main content of the website is divided into three major blocks:

1. Upper functional block, 2. Central content block, 3. Lower menu link block

The shortcut keys ﹝Accesskey﹞ of this website are set as follows:

Alt+U: Menu link block, this block lists the main links to this website.

Alt+M: The central content block is the main content area of this page.

Alt+Z: Footer website information.

Alt+Left arrow key (←): Back to the previous page.