function PreLoadImages(){

    image1 = new Image();
    image1.src = "Images/bt_contato_hover.jpg";

    image2 = new Image();
    image2.src = "Images/bt_contato_verm_h.jpg";
    
    image3 = new Image();
    image3.src = "Images/bt_desenv_hover.jpg";
    
    image4 = new Image();
    image4.src = "Images/bt_desenv_verm_h.jpg";
    
    image5 = new Image();
    image5.src = "Images/bt_dynamics_hover.jpg";
    
    image6 = new Image();
    image6.src = "Images/bt_dynamics_verm_h.jpg";
    
    image7 = new Image();
    image7.src = "Images/bt_empresa_hover.jpg";
    
    image8 = new Image();
    image8.src = "Images/bt_empresa_verm_h.jpg";
    
    image9 = new Image();
    image9.src = "Images/bt_infra_hover.jpg";
    
    image10 = new Image();
    image10.src = "Images/bt_infra_verm_h.jpg";
    
    image11 = new Image();
    image11.src = "Images/bt_service_hover.jpg";
    
    image12 = new Image();
    image12.src = "Images/bt_service_verm_h.jpg";
}