rendered paste body<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /><title>Untitled Document</title><!-- Dependency --> <script src="http://yui.yahooapis.com/2.4.0/build/yahoo/yahoo-min.js"></script> <!-- Used for Custom Events and event listener bindings --> <script src="http://yui.yahooapis.com/2.4.0/build/event/event-min.js"></script> <!-- Source file --> <script src="http://yui.yahooapis.com/2.4.0/build/connection/connection-min.js"></script></head><body><div id="container"></div><script language="javascript" type="text/javascript">function ajaxFunction(){ //create an XMLHttp object var http_request = false; if (window.XMLHttpRequest) { // Mozilla, Safari,... http_request = new XMLHttpRequest(); if (http_request.overrideMimeType) { http_request.overrideMimeType('text/html'); } } 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('Browser doesn\'t support AJAX'); return false; } }var div = document.getElementById('container');var handleSuccess = function(o){ if(o.responseText !== undefined){ div.innerHTML += o.responseText; }}var handleFailure = function(o){ if(o.responseText !== undefined){ div.innerHTML = "<li>Transaction id: " + o.tId + "</li>"; div.innerHTML += "<li>HTTP status: " + o.status + "</li>"; div.innerHTML += "<li>Status code message: " + o.statusText + "</li>"; }}var callback ={ success:handleSuccess, failure: handleFailure};function cleartimer(t) { clearInterval(t); }function start() { var o = YAHOO.util.Connect.asyncRequest('GET', "simple_php.php", callback); if (o.responseText == "stopit") { alert ('Destination reached'); cleartimer(t) }}//main code window.onload = function() { alert('safe to do request now'); alert ('Starting running'); var ajaxRequest = ajaxFunction(); var t = setInterval(function () { start(); }, 5000); }</script></body></html>