function popup(img,width,height){ var hauteur=Math.round((screen.availHeight-height)/2); var largeur=Math.round((screen.availWidth-width)/2); var params = "toolbar=0,scrollbars=0,location=0,status=0,menubar=0,resizable=0,left ="+largeur +" ,top = "+hauteur +",width="+width+",height="+height+""; var fenetre = window.open("","catalogue",params); var doc = fenetre.document.open(); fenetre.document.write("" ); fenetre.document.write("" ); fenetre.document.write("" ); fenetre.document.write("" ); fenetre.document.write("" ); fenetre.document.close(); }