if(document.images){
img1 = new Image();img1.src = "/Files/Navigation/../System/Menu/BT_Home.gif";img1Over = new Image();img1Over.src = "/Files/Navigation/../System/Menu/BT_HomeOver.gif";
img2 = new Image();img2.src = "/Files/Navigation/../System/Menu/BT_Madeira.gif";img2Over = new Image();img2Over.src = "/Files/Navigation/../System/Menu/BT_MadeiraOver.gif";
img4 = new Image();img4.src = "/Files/Navigation/../System/Menu/BT_Historia.gif";img4Over = new Image();img4Over.src = "/Files/Navigation/../System/Menu/BT_HistoriaOver.gif";
img5 = new Image();img5.src = "/Files/Navigation/../System/Menu/BT_Roteiro.gif";img5Over = new Image();img5Over.src = "/Files/Navigation/../System/Menu/BT_RoteiroOver.gif";
img6 = new Image();img6.src = "/Files/Navigation/../System/Menu/BT_Localizacao.gif";img6Over = new Image();img6Over.src = "/Files/Navigation/../System/Menu/BT_LocalizacaoOver.gif";
img7 = new Image();img7.src = "/Files/Navigation/../System/Menu/BT_Contactos.gif";img7Over = new Image();img7Over.src = "/Files/Navigation/../System/Menu/BT_ContactosOver.gif";

}