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:
Note: Use Alt for Internet Explorer accesskeys, and Shift+Alt for Firefox.
The Accesskeys used by this site are designated as follows：

Alt+U：Top navigation links area. This section lists the main links of the website.

Alt+C：Central main content area. This section displays the webpage content of each page.

Alt+B：Bottom related links area. This section lists the secondary links of the website.