How Ajax used to be done

This is just an example of how ajax was used prior to jquery.

by jazahn

HTML

<h2>AJAX</h2>
<button id="mybutton" type="button">Request data</button>
<div id="myDiv"></div>

JavaScript

function loadXMLDoc() {
    var xmlhttp;
    if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
    } else {// code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    xmlhttp.onreadystatechange=function(){
        if (xmlhttp.readyState==4 && xmlhttp.status==200){
            document.getElementById("myDiv").innerHTML=xmlhttp.responseText;
        }
    }
    xmlhttp.open("GET","http://www.harvard.com",true);
    xmlhttp.send();
}
$('#mybutton').bind('click', loadXMLDoc);