function st(text) {
  window.status=text;
  return true;
}

function win_open(adresa,x,y,nazev) {
  var nove = window.open(adresa,nazev,'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,copyhistory=0,width='+x+',height='+y+'');
  return false;
}

function win_close() {
  self.close();
}

function win_reload(w) {
  if (w && !w.closed) { 
    w.location.reload();
  }
}

function win_load(w,a) {
  if (w && !w.closed) {
    w.location.href=a;
  }
}