* The element attributes
*/
private void enterLibraryMaterials(final Attributes attributes)
{
this.materialLibrary = new MaterialLibrary();
final String name = attributes.getValue("name");
final String id = attributes.getValue("id");
if (name != null) this.materialLibrary.setName(name);
if (id != null) this.materialLibrary.setId(id);
enterElement(ParserMode.LIBRARY_MATERIALS);