public void addAttributeNode(string attribute)
        {
            XElement skill = new XElement("skill", new object[]
            {
                new XAttribute("type", attribute),
                new XAttribute("value", "0")
            });

            CrewMember.Elements("skills").First <XElement>().Add(skill);

            switch (skill.Attribute("type").Value)
            {
            case "boarding":
                Boarding = skill;
                break;

            case "combat":
                Combat = skill;
                break;

            case "engineering":
                Engineering = skill;
                break;

            case "navigation":
                Navigation = skill;
                break;

            case "leadership":
                Leadership = skill;
                break;

            case "morale":
                Morale = skill;
                break;

            case "science":
                Science = skill;
                break;

            case "management":
                Management = skill;
                break;
            }
        }