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Q336 How can I change dynamically change the map associated with a client side imagemap?

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Only possible in Netscape Navigator 4 and Internet Explorer 4:

<STYLE type="text/css"><!--
#image1  { position: absolute; top: 0;  left: 0;   width: 400; visibility: visible; }
#image1a { position: absolute; top: 25; left: 25;  width: 150; visibility: hidden; }
#image1b { position: absolute; top: 25; left: 225; width: 150; visibility: hidden; }

<SCRIPT LANGUAGE="JavaScript"><!--
if (document.layers)
    var doc = 'document.', vis = '.visibility';
if (document.all)
   var doc = 'document.all.', vis = '.style.visibility';

function show(object) {
    if (document.layers || document.all)
        eval(doc + object + vis + ' = "visible"');

function hide(object) {
    if (document.layers || document.all)
        eval(doc + object + vis + ' = "hidden"');

function hideAll() {



<MAP NAME="image-map1">
<AREA SHAPE="RECT" COORDS="0,0,400,25"     href="#" onMouseover="hideAll()">
<AREA SHAPE="RECT" COORDS="0,25,25,375"    href="#" onMouseover="hideAll()">
<AREA SHAPE="RECT" COORDS="25,25,174,375"  href="#" onMouseover="hideAll();show('image1a')">
<AREA SHAPE="RECT" COORDS="175,25,225,375" href="#" onMouseover="hideAll()">
<AREA SHAPE="RECT" COORDS="225,25,375,375" href="#" onMouseover="hideAll();show('image1b')">
<AREA SHAPE="RECT" COORDS="375,25,400,375" href="#" onMouseover="hideAll()">
<AREA SHAPE="RECT" COORDS="0,375,400,400"  href="#" onMouseover="hideAll()">

<DIV ID="image1">
<IMG SRC="image.gif" BORDER="0" WIDTH="400" HEIGHT="400" USEMAP="#image-map1" onMouseout="hideAll()">

<MAP NAME="image-map2">
<AREA SHAPE="RECT" COORDS="0,0,200,199"   HREF="page2a.html">
<AREA SHAPE="RECT" COORDS="0,200,200,400" HREF="page2b.html">

<DIV ID="image1a">
<IMG SRC="image1.gif" BORDER="0" WIDTH="150" HEIGHT="350" USEMAP="#image-map2" onMouseout="hideAll()">

<MAP NAME="image-map3">
<AREA SHAPE="RECT" COORDS="0,0,200,199"   HREF="page3a.html">
<AREA SHAPE="RECT" COORDS="0,200,200,400" HREF="page3b.html">

<DIV ID="image1b">
<IMG SRC="image1.gif" BORDER="0" WIDTH="150" HEIGHT="350" USEMAP="#image-map3" onMouseout="hideAll()">


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