function activarSubSeccion(idSubSeccion) {

	var target = $('subseccion_' + idSubSeccion);

	if (!(target && $('subsecciones'))) return;



	$A($('subsecciones').childNodes).each(

			function(node) {

				node = $(node);

				if (!(node.nodeType == 1 && node.hasClassName('subseccion'))) return;

				if (node != target && node.visible()) {

					Effect.Fade(node, { duration: 0.5, queue: 'end' });

				}

			}

	);



	if (target.visible()) {

		Effect.Fade(target, { duration: 0.5, queue: 'end' });

	} else {

		Effect.Appear(target, { duration: 0.5, queue: 'end' });

	}

}