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<!DOCTYPE html> <html> <body> <a href="demo_form.html"> <img id="myImg" src="w3javascript.gif" alt="W3Schools.com" width="100" height="132" ismap> </a> <p>Click the button below to find out if the image is part of a server-side image-map (an image-map is an image with clickable areas).</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myImg").isMap; document.getElementById("demo").innerHTML = x; } </script> </body> </html>