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<!DOCTYPE html> <html> <body> <img id="myImg" alt="Flower" src="klematis.jpg" width="150" height="113"> <p>Click the button to display each attribute's name and value of the image above.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myImg"); var txt = ""; var i; for (i = 0; i < x.attributes.length; i++) { txt = txt + x.attributes[i].name + " = " + x.attributes[i].value + "<br>"; } document.getElementById("demo").innerHTML = txt; } </script> </body> </html>