JavaScript DHTML/Javascript Collections/areas

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"areas" Example

    
<html>
<head>
<script language="JavaScript">
function function1() {
    var m = document.all.myMap.areas.length;
    alert("There are "+m+" areas within the map "myMap""); 
}
</script>
</head>
<body onload="function1();">
<p>
<img src="http://www.wbex.ru/style/logo.png" 
     alt="" 
     width="200" 
     height="100" 
     usemap="#myMap"> 
<map name="myMap"> 
    <area id="area1" 
          shape="rect" 
          coords="0, 0, 100, 50" 
          href="http://www.wbex.ru" 
          onClick="return false">
    <area id="area2" 
          shape="rect" 
          coords = "100, 0, 200, 50" 
          href="http://www.wbex.ru" 
          onClick="return false">
    <area id="area3" 
          shape="rect" 
          coords = "0, 50, 100, 100" 
          href="http://www.wbex.ru" 
          onClick="return false">
    <area id="area4" 
          shape="rect" 
          coords = "0, 0, 0, 0" 
          href="http://www.wbex.ru" 
          onClick="return false">
</map>
</p>
</body>
</html>
Источник — «http://wbex.ru/index.php?title=JavaScript_DHTML/Javascript_Collections/areas&oldid=2668»