function callBoczek(url, pageElement, callMessage){
	document.getElementById(pageElement).innerHTML = callMessage;
	try {
	req = new XMLHttpRequest(); /* np. FF */
	} catch(e) {
		try {
		req = new ActiveXObject("Msxml2.XMLHTTP"); /* niektóre wersje IE */
		} catch (e) {
			try {
			req = new ActiveXObject("Microsoft.XMLHTTP"); /* niektóre wersje IE */
			} catch (E) {
			req = false;
			}
		}
	}

	req.onreadystatechange = function() {showBoczek(pageElement); };
	req.open("GET",url,true);
	req.send(null);
	req.overrideMimeType('text/html; charset=ISO-8859-2');
}

function showBoczek(pageElement) {
	var output = '';
	if(req.readyState == 4) {
		if(req.status == 200) {
			output = req.responseText;
			document.getElementById(pageElement).innerHTML = output;
		}
	}
}