#        Prototype for a bubble.  The bubble is
  #        animated.  Duration and looping of the
  #        animation can be controlled.  The color
  #        of the bubble is also controllable.
  
  #
  #        Fields                Type                Value        Description
  #        ------                ----                -----        -----------
  #        startTime        SFTime                0        The animation start
  #                                                time.  The default
  #                                                immediately starts
  #                                                the animation.
  #
  #        cycleInterval        SFTime                20        The length of time
  #                                                to complete a single
  #                                                animation cycle.
  #
  #        loop                SFBool                FALSE        Turns on/off looping
  #                                                of the animation.
  #
  #        color                SFColor                1 1 1        The color of the bubble.
  #