function popupWindow(url,width,height) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=auto,resizable=yes,copyhistory=no,width='+(width?width:600)+',height='+(height?height:600)+',screenX=150,screenY=150,top=150,left=150')
}