var popUpWin=0;
function popUpWindow(URLStr, left, top)

{

  if(popUpWin)

  {

    if(!popUpWin.closed) popUpWin.close();

  }

  popUpWin = open('popup_crw.html', 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=yes,width='+620+',height='+420+',left='+250+', top='+250+',screenX='+left+',screenY='+top+'');

}