get_namespace (REXML::Functions)

    # File temp/functions.rb, line 66
        def Functions::get_namespace( node_set = nil )
          if node_set == nil
            yield @@context[:node] if defined? @@context[:node].namespace
          else
            if node_set.respond_to? :each
              node_set.each { |node| yield node if defined? node.namespace }
            elsif node_set.respond_to? :namespace
              yield node_set
            end
          end
        end