Figure 1


(a) Error-log output; (b) displaying an error message in HTML; (c) output from Listing Two.

(a)	
[Tue Sep 24 16:39:31 1996] [404 ERROR] [/~tangent/scb.html]
[dial8.ecicnet.org] [http://iceonline.com/home/rodc/jacpac5.html]
 
 
(b)	
<HEAD>
<TITLE>File Not found</TITLE>
</HEAD>  
<BODY>
<H1>File Not found</H1> 
The requested URL /~tangent/scb.html was not found on this server.<P>
Perhaps you were looking for something at Teleport's web-server, such as 
<A HREF="http://www.teleport.com/~tangent/scb.html">   
http://www.teleport.com/~tangent/scb.html</a>? </BODY>


(c)	
[Tue Sep 24 16:39:31 1996 /~tangent/scb.html 
http://iceonline.com/home/rodc/jacpac5.html]  hit:
href="http://www.stonehenge.com/~tangent/scb.html">Solid  mailto: 
HREF="mailto:rodc@iceonline.com">rodc@iceonline.com</A></font><P>