if(document.images){
  
    var home_menu_wireless_on = new Image();
    home_menu_wireless_on.src = thisPage.path + "images/home_menu_wireless_on.gif";
    var home_menu_wireless_off = new Image();
    home_menu_wireless_off.src = thisPage.path + "images/home_menu_wireless_off.gif";
    
    var home_menu_programs_on = new Image();
    home_menu_programs_on.src = thisPage.path + "images/home_menu_programs_on.gif";
    var home_menu_programs_off = new Image();
    home_menu_programs_off.src = thisPage.path + "images/home_menu_programs_off.gif";
    
    var home_menu_quote_on = new Image();
    home_menu_quote_on.src = thisPage.path + "images/home_menu_quote_on.gif";
    var home_menu_quote_off = new Image();
    home_menu_quote_off.src = thisPage.path + "images/home_menu_quote_off.gif";
    
    var home_menu_sale_on = new Image();
    home_menu_sale_on.src = thisPage.path + "images/home_menu_sale_on.gif";
    var home_menu_sale_off = new Image();
    home_menu_sale_off.src = thisPage.path + "images/home_menu_sale_off.gif";
    
    var home_menu_order_on = new Image();
    home_menu_order_on.src = thisPage.path + "images/home_menu_order_on.gif";
    var home_menu_order_off = new Image();
    home_menu_order_off.src = thisPage.path + "images/home_menu_order_off.gif";
    
    var home_menu_corporate_on = new Image();
    home_menu_corporate_on.src = thisPage.path + "images/home_menu_corporate_on.gif";
    var home_menu_corporate_off = new Image();
    home_menu_corporate_off.src = thisPage.path + "images/home_menu_corporate_off.gif";
    
    // - - - - - 
    
    var menu_wireless_on = new Image();
    menu_wireless_on.src = thisPage.path + "images/menu_wireless_on.gif";
    var menu_wireless_off = new Image();
    menu_wireless_off.src = thisPage.path + "images/menu_wireless_off.gif";
    
    var menu_programs_on = new Image();
    menu_programs_on.src = thisPage.path + "images/menu_programs_on.gif";
    var menu_programs_off = new Image();
    menu_programs_off.src = thisPage.path + "images/menu_programs_off.gif";
    
    var menu_quote_on = new Image();
    menu_quote_on.src = thisPage.path + "images/menu_quote_on.gif";
    var menu_quote_off = new Image();
    menu_quote_off.src = thisPage.path + "images/menu_quote_off.gif";
    
    var menu_sale_on = new Image();
    menu_sale_on.src = thisPage.path + "images/menu_sale_on.gif";
    var menu_sale_off = new Image();
    menu_sale_off.src = thisPage.path + "images/menu_sale_off.gif";
    
    var menu_order_on = new Image();
    menu_order_on.src = thisPage.path + "images/menu_order_on.gif";
    var menu_order_off = new Image();
    menu_order_off.src = thisPage.path + "images/menu_order_off.gif";
    
    var menu_corporate_on = new Image();
    menu_corporate_on.src = thisPage.path + "images/menu_corporate_on.gif";
    var menu_corporate_off = new Image();
    menu_corporate_off.src = thisPage.path + "images/menu_corporate_off.gif";
    
  }


function on(imgName){ // home_menu_, menu_
  if(document.images){
    document[imgName].src = eval(imgName + "_on.src");
  }
}

function off(imgName){
  if(document.images){
    document[imgName].src = eval(imgName + "_off.src");
  }
}