<!-- Coloca la capa principal y de texto en el centro

var centrado = false;
var menu_770 = false;
var menu_960 = false;

function Centrar_Contenedor()
{
	if(window.innerHeight)
	{
		alto_nav = window.innerHeight;
	}
	else
	{
		alto_nav = document.documentElement.clientHeight;
	}

	alto = (alto_nav - (document.getElementById("Contenedor").offsetHeight + 16)) / 2;
	document.getElementById("Contenedor").style.top = alto + "px";
	document.getElementById("Menu").style.top = alto + "px";

	//Coloca la capa Tags
	alto_3 = (alto_nav - document.getElementById("Tags").offsetHeight) / 2;
	document.getElementById("Tags").style.top = alto_3 + "px";
	document.getElementById("Tags").style.left = (document.getElementById("Contenedor").offsetLeft + ((document.getElementById("Contenedor").offsetWidth - document.getElementById("Tags").offsetWidth) / 2)) + "px";
 	document.getElementById("Tags").style.zIndex = 1299;
 	document.getElementById("Tags").style.visibility = "hidden";
	
	//Coloca la capa de texto en Netscape
	if (BrowserDetect.browser == "Mozilla" || BrowserDetect.browser == "Netscape" || BrowserDetect.browser == "Konqueror" || BrowserDetect.browser == "Safari" || BrowserDetect.browser == "OmniWeb" || BrowserDetect.browser == "Camino")
	{
		ancho = 273 + parseInt(document.getElementById("Contenedor").offsetLeft);
		alto_2 = 116 + parseInt(document.getElementById("Contenedor").offsetTop); 
		document.getElementById("WN").style.top = alto_2 + "px";
		document.getElementById("WN").style.left = ancho + "px";
	}

	//Centra la capa de texto la primera vez.
	if (!centrado) Centrar_Texto();
}

//Centra texto sólo para Netscape
function Centrar_Texto()
{
	if (BrowserDetect.browser == "Mozilla" || BrowserDetect.browser == "Netscape" || BrowserDetect.browser == "Konqueror" || BrowserDetect.browser == "Safari" || BrowserDetect.browser == "OmniWeb" || BrowserDetect.browser == "Camino")
	{
		ancho = 273 + parseInt(document.getElementById("Contenedor").offsetLeft);
		alto_2 = 116 + parseInt(document.getElementById("Contenedor").offsetTop); 
		document.getElementById("Cuerpo").style.top = alto_2 + "px";
		document.getElementById("Cuerpo").style.left = ancho + "px";
	}
	
	//Coloca la capa Tags
	alto_3 = (alto_nav - document.getElementById("Tags").offsetHeight) / 2;
	document.getElementById("Tags").style.top = alto_3 + "px";
	document.getElementById("Tags").style.left = (document.getElementById("Contenedor").offsetLeft + ((document.getElementById("Contenedor").offsetWidth - document.getElementById("Tags").offsetWidth) / 2)) + "px";
 	document.getElementById("Tags").style.zIndex = 1299;
 	document.getElementById("Tags").style.visibility = "hidden";

	centrado = true;
	return;
}

//Oculta las capas
function Ocultar_capas(capa)
{
	$(capa).effects({
		duration: 1000,
		transition: Fx.Transitions.Quad.easeInOut
	}).start({
		'opacity': [1,0]
	});

	return;
}

//Muestra las capas
function Mostrar_capas(capa) 
{
	//Coloca la capa Tags
	Centrar_Contenedor();
	
	$(capa).effects({
		duration: 1000,
		transition: Fx.Transitions.Quad.easeInOut
	}).start({
		'opacity': [0,1]
	});	

	return;
}

//Efectos Rollover
function Efecto_Over(capa)
{
	$(capa).effects({
		duration: 500,
		transition: Fx.Transitions.Quad.easeInOut
	}).start({
		'opacity': [1,0.5]
	});
	
	return;
}

//Efectos Rollover
function Efecto_Out(capa) 
{
	$(capa).effects({
		duration: 500,
		transition: Fx.Transitions.Quad.easeInOut
	}).start({
		'opacity': [0.5,1]
	});	
	
	return;
}
//-->