function open_equivalences()
{hauteur=550
largeur=795
url='http://www.comptalia.com/formation_diplo/equivalences/equivalences.asp'
window.open(url,'equivalences','titlebar=no,toolbar=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,dependent=no,left=0,top=0,width='+largeur+',height='+hauteur);

}