function mostrar(id){
		document.getElementById(id).style.visibility = 'visible';
		document.getElementById(id).style.display = 'block';
		setTimeout ("ocultar('popup')", 13000);
	}
	
	function ocultar(id){
		document.getElementById(id).style.visibility = 'hidden';
		document.getElementById(id).style.display = 'none';
	}