6:58 PM 7/18/01 fixed anchor problem
11:18 AM 7/22/01 rearranged functions, fixed mouseevent problem
10:23 AM 07/30/2001 added histogram, mouseevents for pop-up graph, support for reverse axes, xclip
5:43 PM 10/4/2002 and 5/2002 updated for Netscape 6 and 7 and IE 6