function soloEbook()
{
	var form = document.formBusRapida;
	if (form.tipoArticulo.checked == true){
		form.tipoBus.value = "soloEbooks";		
	}
		
	else{
		form.tipoBus.value = "full";		
	}

			
}

function abre_ventana(elemento, ancho, alto, scroll)
{
	var ventana=window.open(elemento.href, "_blank", "width="+ancho+"px, height="+alto+"px, scrollbars="+scroll);
	return ventana==undefined;
}