code: def buildFITSName(geisname):
      
  
      # User wants to make a FITS copy and update it...
      _indx = geisname.rfind('.')
      _fitsname = geisname[:_indx] + '_' + geisname[_indx + 1:-1] + 'h.fits'
  
      return _fitsname
docs: Build a new FITS filename for a GEIS input image.