function createRequestObject () {
	if (navigator.appName == 'Microsoft Internet Explorer') {
		return new ActiveXObject('Microsoft.XMLHTTP');
	}

	else {
		return new XMLHttpRequest();
	}
}

var http = createRequestObject();

function ajax (destination, source) {
	http.open('get', source);

	http.onreadystatechange = function () {
		if (http.readyState == 4) {
			document.getElementById(destination).innerHTML = http.responseText;
		}

		else {
			document.getElementById(destination).innerHTML = '';
		}
	}

	http.send(null);
}