function precarga ()
{
	menu1 = new Image ();
	menu2 = new Image ();
	menu3 = new Image ();
	menu4 = new Image ();
	menu5 = new Image ();

	planta1 = new Image ();
	planta2 = new Image ();
	planta3 = new Image ();
	planta4 = new Image ();
	planta5 = new Image ();
	planta6 = new Image ();
	planta7 = new Image ();
	planta8 = new Image ();

	vista_exterior = new Image ();
	mapa_playa_eucaliptos = new Image ();
	isla_cristina = new Image ();
	urbanizacion = new Image ();

	menu1.src="img/introduccion_a.gif";
	menu2.src="img/imagenes_a.gif";
	menu3.src="img/ubicacion_a.gif";
	menu4.src="img/superficies_a.gif";
	menu5.src="img/calidades_a.gif";

	planta1.src="img/planta1_a.jpg";
	planta2.src="img/planta2_a.jpg";
	planta3.src="img/planta3_a.jpg";
	planta4.src="img/planta4_a.jpg";
	planta5.src="img/planta5_a.jpg";
	planta6.src="img/planta6_a.jpg";
	planta7.src="img/planta7_a.jpg";
	planta8.src="img/planta8_a.jpg";

	vista_exterior.src ="img/vista_exterior_1_a.jpg";
	mapa_playa_eucaliptos.src ="img/playa_eucaliptos_a.jpg";
	isla_cristina.src="img/isla_cristina_a.jpg";
	urbanizacion.src="img/urbanizacion_a.jpg";

}