function chgAdv(name) {
	var hReq;

	try {
		hReq = new XMLHttpRequest();
	} catch (e) {
		try {
			hReq = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				hReq = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {
				alert("Problem z przeglądarką.");
				return false;
			}
		}
	}

	hReq.open("GET", "reklama/gl-" + name + ".html", true);
	hReq.onreadystatechange = function() {
		if (hReq.readyState == 4) {
			if (hReq.status == 200) {
				document.getElementById("advBox").innerHTML = hReq.responseText;
			}
		}
	}
	hReq.send(null);
}