I just want to add that in Firefox it will only delete the cookies from satannet.com and not effect any other website
In Internet Explorer you will delete all cookies. So be aware that your cookies (and for example stored login information) from other websites will be gone too.
People using a different browser may find this website helpful:http://www.aboutcookies.org/default.aspx?page=2
It also gives some background information on what cookies are and how you can control them.