if(document.images){
img2 = new Image();img2.src = "Files/Navigation/../HTML/menu/bt_home.png";img2Over = new Image();img2Over.src = "Files/Navigation/../HTML/menu/bt_home_roll.png";
img3 = new Image();img3.src = "Files/Navigation/../HTML/menu/bt_produtos.png";img3Over = new Image();img3Over.src = "Files/Navigation/../HTML/menu/bt_produtos_roll.png";
img8 = new Image();img8.src = "Files/Navigation/../HTML/menu/bt_empresa.png";img8Over = new Image();img8Over.src = "Files/Navigation/../HTML/menu/bt_empresa_roll.png";
img11 = new Image();img11.src = "Files/Navigation/../HTML/menu/bt_certificacao.png";img11Over = new Image();img11Over.src = "Files/Navigation/../HTML/menu/bt_certificacao_roll.png";
img7 = new Image();img7.src = "Files/Navigation/../HTML/menu/bt_legislação.png";img7Over = new Image();img7Over.src = "Files/Navigation/../HTML/menu/bt_legislação_roll.png";
img13 = new Image();img13.src = "Files/Navigation/../HTML/menu/bt_catalogos.png";img13Over = new Image();img13Over.src = "Files/Navigation/../HTML/menu/bt_catalogos_roll.png";
img14 = new Image();img14.src = "Files/Navigation/../HTML/menu/bt_contactos.png";img14Over = new Image();img14Over.src = "Files/Navigation/../HTML/menu/bt_contactos_roll.png";

}