function showMap(id) {
	
	var szer = 418;
	var wys = 424;
	
	var winl = (screen.width-szer)/2;
	var wint = (screen.height-wys)/2;
	if (winl < 0) winl = 0;
	if (wint < 0) wint = 0;
	var settings = 'height=' + wys + ',';
	settings += 'width=' + szer + ',';
	settings += 'top=' + wint + ',';
	settings += 'left=' + winl + ',';
	settings += 'toolbar=0,scrollbars=0'; 
	win = window.open('http://www.poland4u.com/map.php5?hid=' + id,'mapwindow',settings);
	win.focus();

}