Access Keys are added in the web pages to facilitate the Easy Access functions. The web pages of this site are divided into four panels: ：
1)the upper menu penal
2)the left menu panel
3)the content panel in the center
4)the right menu panel
Access keys (or hotkeys) are configured as the following:
Alt+U: The navigational links frame has a list of the main links for the site.
Alt+L: The service menu frame is on the left side of the site.
Alt+C: The main content frame shows the main document content of the site.