The script in the header contains the function called by clicks on the image.
The image is associated with a client side map.
<SCRIPT>
function check(p) {
(p=="F")?alert("NO"):alert("YES")
}
</SCRIPT>
Defining client side image map.
<MAP NAME="coaster">
<AREA NAME="A" COORDS="115,40,125,60"
HREF="javascript:check('A')">
<AREA NAME="B" COORDS="170,10,190,30"
HREF="javascript:check('B')">
<AREA NAME="C" COORDS="230,70,250,90"
HREF="javascript:check('C')">
<AREA NAME="D" COORDS="230,105,250,120"
HREF="javascript:check('D')">
<AREA NAME="E" COORDS="350,25,365,45"
HREF="javascript:check('E')">
<AREA NAME="F" COORDS="150,75,165,95"
HREF="javascript:check('F')">
</MAP>
<IMG SRC="gifs/coaster.gif" border=0 USEMAP="#coaster">
