private static void createFactories() {
		
		if(Utilities.dbFactory == null) {
			Utilities.dbFactory = DocumentBuilderFactory.newInstance();
			Utilities.dbFactory.setNamespaceAware(true);
		}

		if(Utilities.xpFactory == null) {
			Utilities.xpFactory = XPathFactory.newInstance();
		}

		if(Utilities.trFactory == null) {
			Utilities.trFactory = TransformerFactory.newInstance();
		}
		
		if(Utilities.sFactory == null) {
			Utilities.sFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
		}
	}