# File lib/xml/dom2/element.rb, line 296
      def removeAttributeNode(oldAttr)
        ret = getAttributeNode(oldAttr.nodeName)
        if ret.nil? || ret != oldAttr
          raise DOMException.new(DOMException::NOT_FOUND_ERR)
        end
        @attr.removeNamedItem(oldAttr.nodeName)
        ret.ownerElement = nil
        ret
      end