# File lib/xml/util/xmlcanonicalizer.rb, line 186
        def write_element_node(node, visible)
          savedPrevVisibleNamespacesStart = @prevVisibleNamespacesStart
          savedPrevVisibleNamespacesEnd = @prevVisibleNamespacesEnd
          savedVisibleNamespacesSize = @visibleNamespaces.size()
          state = @state
          state = INSIDE_DOC_ELEMENT if (visible && state == BEFORE_DOC_ELEMENT)
          @res = @res + "<" + node.expanded_name() if (visible)
          write_namespace_axis(node, visible)
          write_attribute_axis(node)
          @res = @res + ">" if (visible)
          node.each_child{|child|
                             write_node(child)
                         }
          @res = @res + "</" +node.expanded_name() + ">" if (visible)
          @state = AFTER_DOC_ELEMENT if (visible && state == BEFORE_DOC_ELEMENT)
          @prevVisibleNamespacesStart = savedPrevVisibleNamespacesStart
          @prevVisibleNamespacesEnd = savedPrevVisibleNamespacesEnd
          @visibleNamespaces.slice!(savedVisibleNamespacesSize, @visibleNamespaces.size() - savedVisibleNamespacesSize)                 if (@visibleNamespaces.size() > savedVisibleNamespacesSize)
        end