var fen;
function ferme()
{if  (fen && (!fen.closed)){fen.close()}}
function popup(w,h,fichier)
{ferme();fen=window.open(fichier,"enigme","resizable=no,scrollbars=no,toolbar=no,location=no,directories=no,status=no,alwaysraised=yes,width= "+w+",height="+h);fen.moveTo(0,0)}