Click above to get retro games delivered to your door ever month!

     undo() --> self

        Sets the GET variable back to the value it had when the GET acquired
        input focus.  This message has meaning only while the GET has input
        focus.

        The effect of the Get:undo() message is equivalent to assigning the
        GETvariable from the saved value in Get:original and then sending the
        Get:reset() message.