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<html><body><h2>Using the XMLHttpRequest object</h2><button type="button" onclick="loadXMLDoc()">Change Content</button><p id="demo"></p><script>function loadXMLDoc() { var xmlhttp = new XMLHttpRequest(); xmlhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { document.getElementById("demo").innerHTML = this.responseText; } }; xmlhttp.open("GET", "xmlhttp_info.txt", true); xmlhttp.send();}</script></body></html>