<!DOCTYPE html>
<html>
<body>
<h3>A demonstration of how to access a PARAM element</h3>
<object data="horse.wav">
<param id="myParam" name="autoplay" value="true">
</object>
<p>Click the button to get the name of the parameter.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
var x = document.getElementById("myParam").name;
document.getElementById("demo").innerHTML = x;
}
</script>
</body>
</html>