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<!DOCTYPE html>
<html>
<body>
<p>Click the buttons to compare the <strong>first item</strong> in two of the lists.</p>
<button onclick="myFunction('myList1','myList2')">Compare List 1 and 2</button>
<button onclick="myFunction('myList1','myList3')">Compare List 1 and 3</button>
<br><br>
List 1:
<ul id="myList1"><li><a href="/" rel="nofollow">Water</a></li><li>Milk</li></ul>
List 2:
<ul id="myList2"><li>Coffee</li><li>Tea</li></ul>
List 3:
<ul id="myList3"><li><a rel="nofollow" href="/">Water</a></li><li>Fire</li></ul>
<p><strong>Note:</strong> Internet Explorer 8 and earlier does not support the isEqualNode method.</p>
<p id="demo"></p>
<script>
function myFunction(x,y) {
var item1 = document.getElementById(x).firstChild;
var item2 = document.getElementById(y).firstChild;
var x = item1.isEqualNode(item2);
window.alert(x);
}
</script>
</body>
</html>
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