function small_window(url, jmeno, w, h)
  {
    popupWin = window.open(url, jmeno, 'scrollbars=0,resizable=1,top=0,left=0,menubar=0,width='+w+',height='+h);
  }

  function small_window_scroll(url, jmeno, w, h)
  {
    popupWin = window.open(url, jmeno, 'scrollbars=1,resizable=1,top=0,left=0,menubar=0,width='+w+',height='+h);
  }