function wopen(url, name, w, h)
{
 var win = window.open(url,
  name,
  'width=' + w + ', height=' + h + ', ' +
  'location=0, menubar=0, ' +
  'status=0, toolbar=0, scrollbars=1, resizable=1');
 win.resizeTo(w, h);
 win.focus();
}