function muestra()
{
	document.getElementById("SuperiorDer").style.display="";
	document.getElementById("InferiorDer").style.display="";
	document.getElementById("InferiorIzq").style.display="";
}

function oculta()
{
	document.getElementById("SuperiorDer").style.display="none";
	document.getElementById("InferiorDer").style.display="none";
	document.getElementById("InferiorIzq").style.display="none";
}
/*alert("hola");
Stamp = new Date();
var Hours;
var Mins;
var Foto;
Hours = Stamp.getHours();
if (Hours >= 19 && Hours <= 6) 
	{
		Foto = "7pm-6am.jpg";
	} 
else if (Hours >= 6 && Hours <= 9)
	{
		Foto = "6-9.jpg";
	}
else if (Hours >= 9 && Hours <= 12)
	{
		Foto = "9-12.jpg";
	}
else if (Hours >= 12 && Hours <= 15)
	{
		Foto = "12-3.jpg";
	}
else if (Hours >= 15 && Hours <= 18)
	{
		Foto = "3-6.jpg";
	}
objPage=document.getElementById(cuerpo);
Foto = "images/" + Foto;
objPage.style.background-image: url(Foto);
*/