var fiRef
   function creerFencImage() {
       fiRef = window.open ("","fencImage","width=250,height=500,scrollbars=no,toolbar=no,location=no,directories=no,status=no,alwaysRaised=yes,screenX=80,screenY=80")
       }
   function fermerfi() {
       if ((fiRef)&&(!fiRef.closed)) {fiRef.close()}
       }