| AVERO | Contents |
| Login, logout: | The current login status is shown in the header. If nobody is logged in, the "login link" that opens the login page is visible. If someone is logged in , a "logout" link is shown next to his name, which results in an immediate logout from the system. |
| Home, Help: | The available functions are shown in the menu row. Which functions are available depends on the current login status and the authorisations determined in the main system (see contents). |