function PopUp(Choix,num) {
  switch (Choix) {
  case "f": {
    var maFenetre="Fam2";
    var monUrl="Fiches/Cx"+num+".htm";
    break; }
  case "ff": {
    var maFenetre="Fam2";
    var monUrl="../Fiches/Cx"+num+".htm";
    break; }
  default: {
    maFenetre="Win2";
    var monUrl=num; } }
  var nouvFen = open(monUrl, maFenetre,"scrollbars, resizable, width=650, height=450");
  nouvFen.focus();  }