# File src/rexml/functions.rb, line 286
                def Functions::lang( language )
                        lang = false
                        node = @@node
                        attr = nil
                        until node.nil?
                                if node.node_type == :element
                                        attr = node.attributes["xml:lang"]
                                        unless attr.nil?
                                                lang = compare_language(string(language), attr)
                                                break
                                        else
                                        end
                                end
                                node = node.parent
                        end
                        lang
                end