get_attribute (REXML::Attributes)

    # File temp/element.rb, line 1043
        def get_attribute( name )
          attr = fetch( name, nil )
          if attr.nil?
            return nil if name.nil?
            # Look for prefix
            name =~ Namespace::NAMESPLIT
            prefix, n = $1, $2
            if prefix
              attr = fetch( n, nil )
              # check prefix
              if attr == nil
              elsif attr.kind_of? Attribute
                return attr if prefix == attr.prefix
              else
                attr = attr[ prefix ]
                return attr
              end
            end
            element_document = @element.document
            if element_document and element_document.doctype
              expn = @element.expanded_name
              expn = element_document.doctype.name if expn.size == 0
              attr_val = element_document.doctype.attribute_of(expn, name)
              return Attribute.new( name, attr_val ) if attr_val
            end
            return nil
          end
          if attr.kind_of? Hash
            attr = attr[ @element.prefix ]
          end
          return attr
        end