function popupWin(_url, _w, _h) 
{ 
   if (_title = null) _title = 'inida';
   var _parms = 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width='+_w+',height='+_h;
   window.open(_url, _title, _parms, true);
}