<script type="text/javascript" language="javascript">

??? var http_request = false;

??? function makeRequest(url) {

??????? http_request = false;

??????? if (window.XMLHttpRequest) { // Mozilla, Safari,...
??????????? http_request = new XMLHttpRequest();
??????????? if (http_request.overrideMimeType) {
??????????????? http_request.overrideMimeType('text/xml');
??????????? }
??????? } else if (window.ActiveXObject) { // IE
??????????? try {
??????????????? http_request = new ActiveXObject("Msxml2.XMLHTTP");
??????????? } catch (e) {
??????????????? try {
??????????????????? http_request = new ActiveXObject("Microsoft.XMLHTTP");
??????????????? } catch (e) {}
??????????? }
??????? }

??????? if (!http_request) {
??????????? alert('Giving up :( Cannot create an XMLHTTP instance');
??????????? return false;
??????? }
??????? http_request.onreadystatechange = alertContents;
??????? http_request.open('GET', url, true);
??????? http_request.send(null);

??? }

??? function alertContents() {

??????? if (http_request.readyState == 4) {
??????????? if (http_request.status == 200) {
??????????????? alert(http_request.responseText);
??????????? } else {
??????????????? alert('There was a problem with the request.');
??????????? }
??????? }

??? }
</script>
<span
??? style="cursor: pointer; text-decoration: underline"
??? onclick="makeRequest('test.html')">
??????? Make a request
</span>