Absolute URL: The complete location of a file that includes the Internet tool type and the host name (ex: "http://www.uwec.edu/Orientation/orientation.html"). Absolute URLs are used for links to documents created by others.
Relative URL: The partial location of a file that only includes the path (if there is one) and filename (ex: "Orientation/orientation.html"). Relative URLs are generally only used for files that you create.