var popup_window = null;

  function popup(x,y,url,name)
  {
    popup_window = open(url, name, "resizable=1,scrollbars=yes,width="+x+",height="+y);
  }
  
    function popup2(x,y,url,name)
  {
    popup_window = open(url, name, "resizable=no,scrollbars=no,width="+x+",height="+y);
  }