def local(tag)
      first, second = tag.split ':'
      return first if second.nil?
      @namespaces.include?(first) ? second : tag
    end
def local(tag)
      first, second = tag.split ':'
      return first if second.nil?
      @namespaces.include?(first) ? second : tag
    end
Split off the local name portion of an XML tag.