on constructVisualizerManager  
  return(createManager(#visualizer_manager, getClassVariable("visualizer.manager.class")))
end

on deconstructVisualizerManager  
  return(removeManager(#visualizer_manager))
end

on getVisualizerManager  
  tMgr = getObjectManager()
  if not tMgr.managerExists(#visualizer_manager) then
    return(constructVisualizerManager())
  end if
  return(tMgr.getManager(#visualizer_manager))
end

on createVisualizer tid, tLayout 
  return(getVisualizerManager().create(tid, tLayout))
end

on removeVisualizer tid 
  return(getVisualizerManager().Remove(tid))
end

on getVisualizer tid 
  return(getVisualizerManager().GET(tid))
end

on visualizerExists tid 
  return(getVisualizerManager().exists(tid))
end

on printVisualizers  
  return(getVisualizerManager().print())
end