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Dynamic Usemap with Javascript

Posted on 1998-11-30
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Last Modified: 2008-03-10
I have a very large Image and have direction-buttons to navigate over them (with arrays). To change the Image is no problem, but how can I change the map? I have just make the HTML-Side with document.write, but now, I become an error when I`m clicking on one direction-button (JavaScript Error: incorrect number of arguments). Have any an idee? Thanks!
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Question by:frusti
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Michel Plungjan earned 300 total points
ID: 1274774
1. To change the actual areas you will need to use transparent layers and DHTML, with somewhat limited browser support.
An IMHO  better way is to have an array of hrefs.

I will continue in a comment.
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by:Michel Plungjan
ID: 1274775
If you map all the possible hrefs, you can swap hrefs onmouseover or onclick somewhere else:
<SCRIPT>
/* The array below can be made 1.0 compatible if needed */
theMaps = new Array()
theMaps[0] = new Array('page1.html',null,null);
theMaps[1] = new Array(null,'page2.html',null);
theMaps[2] = new Array(null,null,'page3.html');

CurrentMap = 0;

function goThere(idx) {
   theHref = theMaps[CurrentMap][idx];
   if (theHref != null) location = theHref;
}
fucntion myVoid() { ; } // nothing
</SCRIPT>
<A HREF="javascript:myVoid()" onClick:CurrentMap=0;"><IMG...></A>
<A HREF="javascript:myVoid()" onClick:CurrentMap=1;"><IMG...></A>
<A HREF="javascript:myVoid()" onClick:CurrentMap=2;"><IMG...></A>
<MAP>
<AREA.... HREF="javascript:goThere(0);>
<AREA.... HREF="javascript:goThere(1);>
<AREA.... HREF="javascript:goThere(2);>
</MAP>

So the click in the href will change the links in the map.

Hope I made myself clear,

Michel
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