[]= (REXML::Attributes)

    # File rexml/element.rb, line 1125
      def []=( name, value )
    			if value.nil?		# Delete the named attribute
    				attr = get_attribute name
    				delete attr
    				return
    			end
    			value = Attribute.new(name, value) unless value.kind_of? Attribute
    			value.element = @element
    			old_attr = fetch value.name, nil
    			if old_attr.nil?
    				store(value.name, value)
    			elsif old_attr.kind_of? Hash
    				old_attr[value.prefix] = value
    			elsif old_attr.prefix != value.prefix
    				# Check for conflicting namespaces
    				raise "Namespace conflict in adding attribute \"#{value.name}\": "+
    					"Prefix \"#{old_attr.prefix}\" = "+
    					"\"#{@element.namespace(old_attr.prefix)}\" and prefix "+
    					"\"#{value.prefix}\" = \"#{@element.namespace(value.prefix)}\"" if
    					value.prefix != "xmlns" and old_attr.prefix != "xmlns" and
    					@element.namespace( old_attr.prefix ) ==
    					@element.namespace( value.prefix )
    				store value.name, { old_attr.prefix	=> old_attr,
    														value.prefix		=> value }
    			else
    				store value.name, value
    			end
    			return @element
    		end