DFFSimGUI:

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   Computes the time left to go in the simulation, the predicted finish
   time and the ratio of simulation time to real time. This routine
   should be called at regular intervals.

   Similar to the TimeGUI, but with two additional buttons. You may hide/show
   the Message Queue window, and hide/show the Team Organization window at 
   any time. Hiding these windows helps speed up the simulation.

   Type DFFSimGUI( 'close' ) to close the GUI.

   Since version 7.
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   Form:
   [ rRT, tToGoMem, tToGo, tDone ] = DFFSimGUI( totalSteps, stepsDone, tToGoMem, rRT, dT, name )
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   ------
   Inputs
   ------
   totalSteps             Total number of steps in the simulation
   stepsDone              Number of steps completed
   tToGoMem               Memory [lastJD, lastStepsDone, number of averages done]
   rRT                    Ratio of simulation time to real time
   dT                     Simulation time step (sec) 
   name                   Name of simulation          

   -------
   Outputs
   -------
   rRT                    Ratio of simulation time to real time
   tToGoMem               Memory [lastJD, lastStepsDone, number of averages done]
   tToGo                  Time left in the simulation
   tDone                  Predicted clock time of finish

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Children:

Common: General/CloseIfHandle
Common: Time/Date2JD
Common: Time/JD2Date