public static void init()
	{
		DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
		DocumentBuilder dBuilder;
		try
		{
			dBuilder = dbFactory.newDocumentBuilder();
			doc = dBuilder.parse(Set.class.getResourceAsStream("/sets.xml"));
		} catch (SAXException | IOException | ParserConfigurationException e)
		{
			e.printStackTrace();
		}

		doc.getDocumentElement().normalize();

		if (doc.getDocumentElement().getNodeName() == "sets")
		{
			nodeList = doc.getDocumentElement().getChildNodes();
		} else
		{
			System.err.println("Error: Sets file is not a vaild Sets XML file!");
		}
	}