browserName = navigator.appName;
  browserVer = parseInt(navigator.appVersion);

  if ((browserName == "Netscape" && browserVer >= 3) || browserVer >= 4) 
    versao ="n3";
  else 
    versao = "n2";
  
  if (versao == "n3") {

    menu1 = new Image;
    menu1.src = "./images/menu1.png";
    menu1o = new Image;
    menu1o.src = "./images/menu1o.png";
    menu1sel = new Image;
    menu1sel.src = "./images/menu1sel.png";
	
    menu2 = new Image;
    menu2.src = "./images/menu2.png";
    menu2o = new Image;
    menu2o.src = "./images/menu2o.png";
    menu2sel = new Image;
    menu2sel.src = "./images/menu2sel.png";
	
    menu3 = new Image;
    menu3.src = "./images/menu3.png";
    menu3o = new Image;
    menu3o.src = "./images/menu3o.png";
    menu3sel = new Image;
    menu3sel.src = "./images/menu3sel.png";
	
    menu4 = new Image;
    menu4.src = "./images/menu4.png";
    menu4o = new Image;
    menu4o.src = "./images/menu4o.png";
    menu4sel = new Image;
    menu4sel.src = "./images/menu4sel.png";
	
    menu5 = new Image;
    menu5.src = "./images/menu5.png";
    menu5o = new Image;
    menu5o.src = "./images/menu5o.png";
    menu5sel = new Image;
    menu5sel.src = "./images/menu5sel.png";
	
    menu6 = new Image;
    menu6.src = "./images/menu6.png";
    menu6o = new Image;
    menu6o.src = "./images/menu6o.png";
    menu6sel = new Image;
    menu6sel.src = "./images/menu6sel.png";

    menurodape1 = new Image;
    menurodape1.src = "./images/menurodape1.png";
    menurodape1o = new Image;
    menurodape1o.src = "./images/menurodape1o.png";

    menurodape2 = new Image;
    menurodape2.src = "./images/menurodape2.png";
    menurodape2o = new Image;
    menurodape2o.src = "./images/menurodape2o.png";

    menurodape3 = new Image;
    menurodape3.src = "./images/menurodape3.png";
    menurodape3o = new Image;
    menurodape3o.src = "./images/menurodape3o.png";

    menurodape4 = new Image;
    menurodape4.src = "./images/menurodape4.png";
    menurodape4o = new Image;
    menurodape4o.src = "./images/menurodape4o.png";

    menurodape5 = new Image;
    menurodape5.src = "./images/menurodape5.png";
    menurodape5o = new Image;
    menurodape5o.src = "./images/menurodape5o.png";

    menurodape6 = new Image;
    menurodape6.src = "./images/menurodape6.png";
    menurodape6o = new Image;
    menurodape6o.src = "./images/menurodape6o.png";

}

function op(Name,Img) {
	if (versao == "n3")
		document.images[Name].src = eval(Img + ".src")
}