TimePlugIn:

--------------------------------------------------------------------------
   Create a time GUI plug in.

   To set the time plugin:
   TimePlugIn( 'set',  h.timePlugInTag, struct( 'jDEpoch', 2.45162380976e+06, 
               'duration', '01:00:00', 'dT', 0.25 ) );  

   Typing TimePlugIn is the same as TimePlugIn('initialize')

--------------------------------------------------------------------------
   Form:
   x =  TimePlugIn( action, modifier, hFig, position, callback )
--------------------------------------------------------------------------

   ------
   Inputs
   ------
   action      (1,:)  Action 'initialize', 'update'
   modifer     (1,:)  Modifier to the action or data structure if intialization
   hFig        (1,1)  Handle to the figure or if 'update' radio button handles
   position    (1,4)  [left bottom width height]
   callback    (1,:)  Callback string when something has changed in this gui

   -------
   Outputs
   -------
   x           (1,1)  The tag if action is 'initialize'

--------------------------------------------------------------------------

Children:

Common: General/DeBlankLT
Common: General/GetListString
Common: General/StringToTokens
Common: Help/HelpSystem
Common: Time/DN2Date
Common: Time/DNString2Date
Common: Time/Date2DN
Common: Time/Date2JD
Common: Time/FindSolsticeOrEquinox
Common: Time/JD2000
Common: Time/JD2Date