Compatible AJAX Object Initialization

ajax.js

function initAjax() {
    var objXml = false;
    if(window.XMLHttpRequest) {
        objXml = new XMLHttpRequest(); // All modern browsers
    } else if(window.ActiveXObject) {
        try {
            objXml = new ActiveXObject("Msxml2.XMLHTTP"); // Internet Explorer 6
        } catch(e) {
            try {
                objXml = new ActiveXObject("Microsoft.XMLHTTP"); // Internet Explorer 5
            } catch(ex) {
                objXml = false;
            }
        }
    }
    return ObjXml;
}