<!DOCTYPE html>
<html>
<head>
<script>
function myFunction() {
alert("Image loaded: " + document.getElementById("myImg").complete);
}
</script>
</head>
<body onload="myFunction()">
<p>This property returns true if the image is finished loaded, and false if not.</p>
<img id="myImg" src="compman.gif" alt="Computerman" width="107" height="98">
</body>
</html>