function openp1(url, w, h)
{
  var px = Math.round((screen.width  - w) / 2);
  var py = Math.round((screen.height - h) / 2);
  var opts = 'status=yes,menubar=no,toolbar=no' +
    ',resizable=no,scrollbars=no,location=no' +
    ',width='  + w +
    ',height=' + h +
    ',left='   + px +
    ',top='    + py;
  var w = window.open(url, "fp", opts);
  w.focus();
  return false;
}