function opendrukuj(klas) {
    drukuj = window.open("/jsp/bip/drukuj.jsp?classId="+klas,"",
    "toolbar=no,location=no,scrollbars=yes,directories=no,status=yes,menubar=no,fullscreen=no,resizable=yes,width="+(screen.width-40)+",height="+(screen.height-100)+",left=15,top=20"); 
    drukuj.focus();
}