// Función para mostrar el menu desplegable
var t;

function activar()
{
	clearTimeout(t);
}

function mostrar_marketsectors()
{
	var capa = document.getElementById('marketsectors');
    capa.style.visibility = "visible";
}
function mostrar_upvc()
{
	var capa = document.getElementById('upvc');
    capa.style.visibility = "visible";
}

function ocultar_submenus()
{
	var capa1 = document.getElementById('marketsectors');
    capa1.style.visibility = "hidden";
	var capa3 = document.getElementById('upvc');
    capa3.style.visibility = "hidden";
}
function retardo()
{
	t=setTimeout('ocultar_submenus()',100);
}



// fin del menú desplegable