//Tutte le immagini...
	 imagenes = new Array();
	 imagenes[0] = new Image();
     imagenes[0].src = "imagenes/negro.jpg";
	 imagenes[1] = new Image();
     imagenes[1].src = "imagenes/v-art-negro.jpg";
	 imagenes[2] = new Image();
     imagenes[2].src = "imagenes/v-art-negro-logos.jpg";
	 imagenes[3] = new Image();
     imagenes[3].src = "imagenes/v-art-negro-logos-cuadros.jpg";
	 imagenes[4] = new Image();
     imagenes[4].src = "imagenes/v-art-negro-logos-cuadros-personaje-triangulo.jpg";
	 imagenes[5] = new Image();
     imagenes[5].src = "imagenes/v-art-negro-logos-cuadros-personaje-triangulo-click.jpg";
	 imagenes[6] = new Image();
     imagenes[6].src = "imagenes/v-art-negro-logos-cuadros-personaje-triangulo-click-bestia.jpg";

//...e il numero totale di immagini	     
	 var numero_total_imagenes = 7;