If you hoover over symbols, the changing image indicates a clickable link.

To activate a link just press your left mouse button to jump to the indicated subject.

  From every page you are always  able to jump back to the main navigation page by clicking the home symbol. 

If your screen does not display correctly, you probably use an old version browser.

By clicking this button: 

you can download a newer version: Internet Explorer 8.0, for free, which enables you to view the site as intended.

POSSIBLE CHANGES:

arrow into hand + highlighted text:

changed + highlighted button:

sharpened text: