/*Event.observe(window, 'load', function() {
	if ($('imagenes'))
	{
		ocultar_imagenes();
		cargar_imagenes();
		mover_titulos();
	}
});*/

function esconder_imagenes()
{
	$$('#imagenes img.imagenes_opacas').each(function(elemento){
		elemento.setStyle('opacity:0');
	});

	new Effect.Appear('imagenes', {delay:0});
}
function ocultar_imagenes()
{
	$$('#imagenes img.imagenes_opacas').each(function(elemento){
		elemento.setStyle('opacity:0');
	});

	new Effect.Fade('imagenes', {delay:1});
}

function cargar_imagenes()
{

	$$('#imagenes img.imagenes_opacas').each(function(elemento){
		new Effect.Opacity(elemento, {duration: 1, from: 0, to: 0.5 });
	});
}

function efecto_opaco(nom_elemento, cantidad)
{
	elemento = $(nom_elemento);
	if (cantidad == 0)
	{
		new Effect.Opacity(elemento, {from: 1, to: 0.5, duration: 1});
	}
	else
	{
		new Effect.Opacity(elemento, {from: 0.5, to: 1, duration: 1});
	}
}