Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<body>

<img id="planets" src="planets.gif" width="145" height="126" usemap="#planetmap">

<map name="planetmap">
<area id="venus" shape="circle" coords="124,58,8" alt="The planet venus" href="venus.htm">
</map>

<p>Click the button to display the value of the usemap attribute of the image.</p>

<button onclick="myFunction()">Try it</button>

<p id="demo"></p>

<script>
function myFunction() {
    var x = document.getElementById("planets").useMap;
    document.getElementById("demo").innerHTML = x;
}
</script>

</body>
</html>