DOMImplementationLSDOMImplementation interface that provides the factory
              methods for creating the objects 
              required for loading and saving.DOMBuilderDOMInputSourceInputSource DOMEntityResolverDOMBuilderFilterElement nodes as
              they are being processed during the parsing of a document. 
              like SAX filters.
              DOMWriterDOMCMBuilderDOMCMWriterDocumentLSParserErrorEvent