function createRequestObject() {
	var ro;
	var browser = navigator.appName;
	if (browser == "Microsoft Internet Explorer") {
		ro = new ActiveXObject("Microsoft.XMLHTTP");
	} else {
		ro = new XMLHttpRequest();
	}
	return ro;
}

var http = createRequestObject();
var request = new Object();

function sndReq(path, action, handler) {
	// set handler function
	request.handler = handler;
	
	// complete request
	http.open('get', path + '?cachebuster=' + new Date().getTime() + '&' + action);
	http.onreadystatechange = handleResponse;
	http.send(null);
}

function handleResponse() {
	if (http.readyState == 4) {
		var response = http.responseText;
		var handler = request.handler;
		handler(response);
	}
}