IsRShift()

         Determines if the Right Shift key is pressed

    Syntax:

         IsRShift() -> lPress

    Description:

         Determines if the Right Shift key is pressed returning a logic
         value.

    Return:

         A logic value indicating if is pressed or not.

    Example:

         If IsRShift()
           Warning ( "Right shift is down" )
         EndIf