// AJAX helpers for irPublish
function getXmlHttpRequest() {
	var xhr = null;
	
	try {
		xhr = new ActiveXObject("MSXML2.XMLHTTP");
	} catch(e) { 
		try {
			xhr = new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch(e) {
			xhr = false;
		}
	}
	
	if(!xhr && typeof XMLHttpRequest != 'undefined') {
		xhr = new XMLHttpRequest();
	}
	
	return xhr;
}