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How to run ajax program

Suganya Rajarethinam

Joined: Sep 10, 2008
Posts: 11
I am new to the Ajax program. I have one simple Ajax program.But i didn't know how to run this program.What are the requirements are needed to run the Ajax program.Can any one help to me.. Here am sending that program.

<title>Request External Web Page containing parameters using Ajax</title>
<script language="javascript" type="text/javascript">
function makeRequest(url, containerid, parameters) {
http_request = false;
if (window.XMLHttpRequest) { // Mozilla, Safari,...
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType) {
// set type accordingly to anticipated content type
} 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('Cannot create XMLHTTP instance');
return false;
http_request.onreadystatechange = alertContents;'GET', url + parameters, true);

function alertContents() {
if (http_request.readyState == 4) {
if (http_request.status == 200) {
result = http_request.responseText;
document.getElementById('content').innerHTML = result;
} else {
alert('There was a problem with the request.');
<a href="javascript: makeRequest('','content','?topicid=8');">Request Page</a>
<div id="content"></div>
Muhammad Saifuddin
Ranch Hand

Joined: Dec 06, 2005
Posts: 1321

read this to understand the concept.

[Blog][Linkedin] How To Ask Questions On JavaRanch My OpenSource
Eric Pascarello

Joined: Nov 08, 2001
Posts: 15385
You can not call another domain with Ajax. Is that your issue with running tat example?

Suganya Rajarethinam

Joined: Sep 10, 2008
Posts: 11

Thanks for your reply....

Suganya R.
I agree. Here's the link:
subject: How to run ajax program
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