function OpenWindow(cesta, nazev_okna, width, height)
{
	okno = window.open(cesta, nazev_okna, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width='+width+', height='+height);
	okno.focus();
	return true;
}