//    Instruction Example :      gradient.transparency.level.stack (long)


        screen.resolution.set (512,384)

        screen.set (BACK)
          pattern.display ("avo\bubble.gif")
        screen.end ()

        gradient.transparency.level.stack (50)
        gradient.display (RIGHT,4,80,20,0,200,180,20,CENTER,CENTER,320,240)

        text.display ("Press a key to exit.", CENTER,350)

        keyboard.wait ()

        script.stop ()