<!DOCTYPE html>
<html>
<body>
<iframe src="../default.asp.html" style="height:380px;width:520px;"></iframe>
<p>Click the "Try it" button to adopt and display the value of the first H1 element in the iframe (another document).</p>
<p><strong>Note:</strong> Internet explorer 8 and earlier does not support the adoptNode() method.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction() {
var frame = document.getElementsByTagName("IFRAME")[0]
var h = frame.contentWindow.document.getElementsByTagName("H1")[0];
var x = document.adoptNode(h);
document.body.appendChild(x);
}
</script>
</body>
</html>