function popup(url, name, width, height, w_max, h_max) {
  if (!w_max) { w_max = 720; }
  if (!h_max) { h_max = 520; }
  if (width>w_max) { width=w_max-20; }
  if (height>h_max) { height=h_max-20; }
  width += 20;
  height += 20;
  settings=
  "toolbar=no,location=no,directories=no,"+
  "status=no,menubar=no,scrollbars=yes,"+
  "resizable=yes,width="+width+",height="+height;
  MyNewWindow=window.open(url,name,settings);
  MyNewWindow.resizeTo(width,height);
  return false;
}
function popopen(url,name) {
  MyNewWindow=window.open(url,name);
}