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"){    
  warehouse_on = new Image;
  warehouse_on.src = "/img/en/menu_top_02_on.gif";
  
  service_on = new Image;
  service_on.src = "/img/en/menu_top_03_on.gif";
  
  spm_on = new Image;
  spm_on.src = "/img/en/menu_top_04_on.gif";
  
  promos_on = new Image;
  promos_on.src = "/img/en/menu_top_05_on.gif";
  
  expediweb_on = new Image;
  expediweb_on.src = "/img/en/menu_top_06_on.gif";
  
  contact_on = new Image;
  contact_on.src = "/img/en/menu_top_07_on.gif";
  
  lang_on = new Image;
  lang_on.src = "/img/en/menu_top_08_on.gif";  

  
  
  warehouse_off = new Image;
  warehouse_off.src = "/img/en/menu_top_02_off.gif";
  
  service_off = new Image;
  service_off.src = "/img/en/menu_top_03_off.gif";
  
  spm_off = new Image;
  spm_off.src = "/img/en/menu_top_04_off.gif";
  
  promos_off = new Image;
  promos_off.src = "/img/en/menu_top_05_off.gif";
  
  expediweb_off = new Image;
  expediweb_off.src = "/img/en/menu_top_06_off.gif";
  
  contact_off = new Image;
  contact_off.src = "/img/en/menu_top_07_off.gif";
  
  lang_off = new Image;
  lang_off.src = "/img/en/menu_top_08_off.gif"; 
}

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;
  }
}