<li>
<A HREF="/~rote/useless/clickable.html">useless knowledge</A>

=============================================================================
<HTML>
<HEAD> <TITLE>Clickable image</TITLE> </HEAD>
<BODY>
<H1>Testing your Mouse</H1>
Enter your name and e-mail address.
<INPUT NAME=B TYPE=TEXTAREA HEIGHT=2 WIDTH=5>

<HR>
If your computer has a mouse, click here:
<A HREF="/cgi-bin/click">
<INPUT NAME=A TYPE=IMAGE SRC="/library/oben.xbm">
<INPUT NAME=A TYPE=IMAGE SRC="pfeil.xbm">
</A>

</P>
<P>
Otherwise, click <A HREF="/cgi-bin/click">there</A>.
</P>

<P>
<A HREF="http://  /cgi-bin/click">
Manual of Web Style
</A>

</HTML>

=============================================================================
<HTML>
<HEAD> <TITLE>successful click</TITLE> </HEAD>
<BODY>
Thank you.
</HTML>

============================================================================
<HTML>
<HEAD> <TITLE>successful click</TITLE> </HEAD>
<BODY>
It seems that
you have clicked successfully.
Congratulations!
Please enter your name down into the clickers hall of fame.
<INPUT TYPE=TEXT WIDTH=50>
<INPUT TYPE=CLEAR>
</HTML>

============================================================================
<HTML>
<HEAD> <TITLE>clickers hall of fate</TITLE> </HEAD>
<BODY>
<H1>Clickers Hall of Fate</H1>
Your name was sunk.
</HTML>

============================================================================

=============================================================================
<HTML>
<HEAD> <TITLE>unsuccessful click</TITLE> </HEAD>
<BODY>
Please try to hit the head of the arrow as exactly as possible!
<HR>
<A HREF="useless.html">Try again.
</A>
</HTML>

=============================================================================
#!/usr/bin/ksh
#   click!
case $QUERY_STRING in
"Name.*")     print "Location: hall" # there
        ;;
"B=*([!&])&A.x=+([0-9])&A.y=+([0-9])" )
        if [[ $QUERY_STRING = "*x=5[234]&A.y=5[234]$" ]]
        then print "Location: successful"
        else print "Location: unsuccessful"
        ;;
"")     print "Location: welldone" # there
        ;;
*) print 'document-type: text/html ???

<HTML>
<HEAD> <TITLE>strange click</TITLE> </HEAD>
<BODY>
Your query string "'$QUERY_STRING'" could not be parsed.
</HTML>
'
        ;;
esac
