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<!DOCTYPE html> <html> <body> <h3>Start typing a name in the input field below:</h3> <form action=""> First name: <input type="text" id="txt1" onkeyup="showHint(this.value)"> </form> <p>Suggestions: <span id="txtHint"></span></p> <script> function showHint(str) { var xhttp; if (str.length == 0) { document.getElementById("txtHint").innerHTML = ""; return; } xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (xhttp.readyState == 4 && xhttp.status == 200) { document.getElementById("txtHint").innerHTML = xhttp.responseText; } }; xhttp.open("GET", "gethint.php?q="+str, true); xhttp.send(); } </script> </body> </html>