-This draws a random sequence of colorful barcodes scrolling across your
-screen. CONSUME! By Dan Bornstein.
+Draws a random sequence of colorful barcodes scrolling across your
+screen. CONSUME!
+
+The barcodes follow the UPC-A, UPC-E, EAN-8 or EAN-13 standards.
+
+http://en.wikipedia.org/wiki/Universal_Product_Code
+http://en.wikipedia.org/wiki/European_Article_Number
+
+Written by Dan Bornstein; 2003.