function MM_jumpMenu(targ, selObj, restore) { //v3.0
    eval(targ + ".location='" + selObj.options[selObj.selectedIndex].value + "'");
    if (restore) selObj.selectedIndex = 0;
}
function mostrar(paises) {
    document.getElementById(paises).style.visibility = "visible";
}
function ocultar(paises) {
    document.getElementById(paises).style.visibility = "hidden";
}

function Cambia_Imagen(identificador, imagen) {
    identificador.src = imagen;
}