imgNavLeft = new Image();
imgNavLeft.src = "images/nav_left_on.gif";
imgCompany = new Image();
imgCompany.src = "images/button_company_on.gif";
imgServices = new Image();
imgServices.src = "images/button_services_on.gif";
imgClients = new Image();
imgClients.src = "images/button_clients_on.gif";
imgNews = new Image();
imgNews.src = "images/button_news_on.gif";
imgCareers = new Image();
imgCareers.src = "images/button_careers_on.gif";
imgContact = new Image();
imgContact.src = "images/button_contact_on.gif";