Thanks reply I would have thought that as well but it does not seem to work on FacebookI imagine the 'Enter' key would be the 'Return' key.
I'm looking at my Apple Bluetooth keyboard and see the 'Return' key is also marked as the 'Enter' key in finer print....... So it appears Enter and Return are one and the same. See link ---> http://www.crunchgear.com/wp-content/uploads/2010/04/apple-keyboard-1.jpg