function submit_popup_navigor(action_required) {
   var thisfrm=document.navigor;
   window.open('about:blank',arguments[1],
      'width=650,height=500,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=yes'
                         );
   thisfrm.target=arguments[1];
   submit_navigor(action_required);
   thisfrm.target="";
}