XNamespace nsCustomer = "http://schemas.devleap.com/Customer";
XNamespace nsAddress = "http://schemas.devleap.com/Address";
XElement customer = new XElement(nsCustomer + "customer",
new XAttribute("id", "C01"),
new XElement(nsCustomer + "firstName", "Paolo"),
new XElement(nsCustomer + "lastName", "Pialorsi"),
new XElement(nsAddress + "address", "Brescia - Italy",
	new XAttribute(XNamespace.Xmlns + "a", nsAddress)));
