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<!DOCTYPE html> <html> <body> <div id="demo"><h2>Let AJAX change this text</h2></div> <button type="button" onclick="loadDoc()">Change Content</button> <script> function loadDoc() { var xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (xhttp.readyState == 4 && xhttp.status == 200) { document.getElementById("demo").innerHTML = xhttp.responseText; } }; xhttp.open("GET", "ajax_info.txt", true); xhttp.send(); } </script> </body> </html>