// Función para mostrar el menu desplegable
var t;

function activar()
{
	clearTimeout(t);
}

function mostrar_empresa()
{
	var capa = document.getElementById('empresa');
    capa.style.visibility = "visible";
}

function mostrar_precios()
{
	var capa = document.getElementById('precios');
    capa.style.visibility = "visible";
}

function mostrar_serv()
{
	var capa = document.getElementById('serv');
    capa.style.visibility = "visible";
}

function mostrar_links()
{
	var capa = document.getElementById('links');
    capa.style.visibility = "visible";
}

function ocultar_submenus()
{

	var capa2 = document.getElementById('empresa');
    capa2.style.visibility = "hidden";
	
	var capa3 = document.getElementById('precios');
    capa3.style.visibility = "hidden";
		
	var capa4 = document.getElementById('serv');
    capa4.style.visibility = "hidden";	
	
	var capa5 = document.getElementById('links');
    capa5.style.visibility = "hidden";	
}
function retardo()
{
	t=setTimeout('ocultar_submenus()',800);
}

// fin del menú desplegable