function cargar_imagenes_presentacion(seccion){
	SLIDES = new slideshow("SLIDES");
		if(seccion=="presentacion"){
			SLIDES.add_slide(s = new slide('/imagenes/foto_catalogo-1.jpg'));
			SLIDES.add_slide(s = new slide('/imagenes/foto_catalogo-2.jpg'));
			SLIDES.add_slide(s = new slide('/imagenes/foto_catalogo-3.jpg'));
			SLIDES.add_slide(s = new slide('/imagenes/foto_catalogo-4.jpg'));
			SLIDES.add_slide(s = new slide('/imagenes/foto_catalogo-5.jpg'));
			SLIDES.add_slide(s = new slide('/imagenes/foto_catalogo-6.jpg'));			

		}
	s.filter = 'progid:DXImageTransform.Microsoft.Fade()';
}

function opacity_presentacion(){
	//Cargar controles
	if(document.getElementById('controles')){
		document.getElementById('controles').className  = "nav-reproductor visible";
	}
	
	var opacity = 10;
	if (document.images) {
	SLIDES.image = document.images.SLIDESIMG;
	var fadein_opacity = 0.04;
	var fadein_img = SLIDES.image;
	fadein(opacity,fadein_opacity,fadein_img);
	SLIDES.post_update_hook = function() { fadein(0.04); }
	}
}
function fadein(opacity,fadein_opacity,fadein_img) {
  if (typeof opacity != 'undefined') { fadein_opacity = opacity; }
  if (fadein_opacity < 0.99 && fadein_img && fadein_img.style &&
      typeof fadein_img.style.MozOpacity != 'undefined') {

    fadein_opacity += .05;
    fadein_img.style.MozOpacity = fadein_opacity;
    setTimeout("fadein()", 50);
  }
}