function masInfo(id){
		anuncio = document.getElementById("a"+id);
		boton = document.getElementById("b"+id);
		

		if (anuncio.style.display == "none"){
			anuncio.style.display = "";
			boton.style.backgroundPosition ="bottom left"
			boton.innerHTML ="<span>Ocultar</span>"
		}else{
			anuncio.style.display = "none";
			boton.style.backgroundPosition ="top left"
			boton.innerHTML ="<span>Desplegar</span>"			
		}
	}