Contextual help link.

Login link. This icon is present if your not already logged. Click this link to log in the system by authentificating yourself.

Logout link. Click on this link to log out of the system.

Link to a print-freindly version of the current page.

send a email to node administrator(s).

I you have some display problem, don't hesitate to install and try firefox, an open source browser available for all systems (windows, mac, unix)