# File rexml/element.rb, line 1106
  def []=( name, value )
			if value.nil?
				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