NAME:
	cgif
 PURPOSE:
       write gif from z-buffer with various options
	colour vectors are reversed
 CALLING SEQUENCE:
	cgif,NOPRINT=noprint,PRINTER=printer,nosign=nosign
 OPTIONAL INPUT PARAMETERS:
 	file: 	file name (default=idl.gif)
	printer:specify printer (default=lp1)
		If both color and printer are set, prints to color5
	noprint:disable printing
	nosign: disable date and name at bottom of page
	title: to be put at bottom lh corner of page
 OUTPUT: the postscript file is now finished 
 MODIFICATION HISTORY
	Feb 94 - Written by A. Refregier
	OCT 2000-MOdified by S. Aigrain

(See /home/xmmssc/soft/idl/pro/misc_graphics/cgif.pro)