browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
        if (browserName == "Netscape" && browserVer >= 3 || browserName == "Microsoft Internet Explorer" && browserVer>=4) version = "n3";
        else version="x";
if (version == "n3")
{
var SPAanim = false;

	image1= new Image();
	image1.src = "/images/menu/menu_sobre_1.gif";
	image1on = new Image();
	image1on.src = "/images/menu/menu_sobre_2.gif";

	image2= new Image();
	image2.src = "/images/menu/menu_7spa_1.gif";
	image2on = new Image();
	image2on.src = "/images/menu/menu_7spa_2.gif";

	image3= new Image();
	image3.src = "/images/menu/menu_contactos_1.gif";
	image3on = new Image();
	image3on.src = "/images/menu/menu_contactos_2.gif";

	image4= new Image();
	image4.src = "/images/menu/menu_membership_1.gif";
	image4on = new Image();
	image4on.src = "/images/menu/menu_membership_2.gif";


function ON1(name) {
	document[name].src = eval(name + "on.src");
	}

function OFF1(name) {
document[name].src = eval(name + ".src");
	}

SPAanim = true;

function on(name) {
	if (SPAanim) ON1(name);
	}

function off(name) {
	if (SPAanim) OFF1(name);
	}
}