<!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>