function open_win(ProductCode) {
  popup=window.open("http://booking.pleasant.net/res_framesets.html?32618+1606+&product=" + ProductCode,
  "res_mainwindow",
  "width=685,height=375,directories=no,status=yes,location=no,toolbar=no,scrollbars=no,resize=no,menubar=yes,copyhistory=no");
}