browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);

if ((browserName == "Netscape" && browserVer >= 3)||
  (browserName == "Microsoft Internet Explorer" && browserVer >=4)) version = "n3";
else version = "x";

if (version == "n3"){
  /* ------------- ON ------------- */
  /* -- TOP MENU -- */
  dossier_personnel_on = new Image;
  dossier_personnel_on.src = "images/dossier_personnel_on.en.jpg";
  
  faq_on = new Image;
  faq_on.src = "images/faq_on.en.jpg";
  
  regles_on = new Image;
  regles_on.src = "images/regles_on.en.jpg";
  

  
  /* ------------- OFF ------------- */
  /* -- TOP MENU -- */
  dossier_personnel_off = new Image;
  dossier_personnel_off.src = "images/dossier_personnel_off.en.jpg";
  
  faq_off = new Image;
  faq_off.src = "images/faq_off.en.jpg";
  
  regles_off = new Image;
  regles_off.src = "images/regles_off.en.jpg";

}

function img_act(imgName){
  if (version == "n3"){
    imgOn = eval(imgName + "_on.src");
    document [imgName].src = imgOn;
  }
}

function img_inact(imgName){
  if (version == "n3"){
    imgOff = eval(imgName + "_off.src");
    document [imgName].src = imgOff;
  }
}