--- README.en.orig	Mon Nov 27 00:47:58 2000
+++ README.en	Mon Jul 16 17:24:47 2001
@@ -18,6 +18,7 @@
 numsets = 1
 xsize = 200
 ysize = 200
+GDChart.image_type = GDChart::PNG;
 GDChart.out_graph(xsize, ysize, $stdout, GDChart::LINE, numpoints, \
                   labels, numsets, data)
 --
@@ -54,6 +55,7 @@
 variable indicates its use.  Basically, use a number when integer or
 float, and a string when string (obviously).
 
+GDC_image_type          integer
 GDC_ytitle              string
 GDC_xtitle              string
 GDC_ytitle2             string