// Initialize the object:
var ajax = false;

// window.XMLHttpRequest - SUPPORTED BY MOST BROWSERS
if (window.XMLHttpRequest) {
	
	// IE 7, Mozilla, Safari, Firefox, Opera:
	ajax = new XMLHttpRequest();
		
} else if (window.ActiveXObject) { // IE 6 AND EARLIER OBJECTS
	try { // TRY CREATE THE NEWER OBJECT FOR OLD IE VERSIONS
		ajax = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) { // CREATE THE OLD OBJECT INSTEAD
		try {
			ajax = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (e) { }
	}
}