get_namespace (REXML::Functions)

    # File temp/functions.rb, line 74
        def Functions::get_namespace( node_set = nil )
          if node_set == nil
            yield @@node if defined? @@node.namespace
          else
            if node_set.namespace
              yield node_set
            else
              return unless node_set.kind_of? Enumerable
              node_set.each { |node| yield node if defined? node.namespace }
            end
          end
        end