Abstract: A method and apparatus is disclosed which provide a scroll bar for use with a display device. The scroll bar has an index and the data displayed on the display device is presented according to the index. In response to user commands the method and apparatus provide additional nested indexes for the displayed data.

Abstract: A method of performing computer-based on-line commerce in which a client computer issues a group of interrelated commercial requests and each one of a plurality of server computers is available to service at least one of said requests, said method, performed by an intelligent agent, comprising steps of: receiving the group of interrelated commercial requests from said client computer; and finding servers which will satisfy said group of requests using client preference levels indicating for each request at least one preferred value which the client would like the agent to use in finding a server to satisfy that request; characterized in that said finding step also uses a client significance level indicating for a corresponding request the relative significance of this request in comparison to the other requests in the group.

Abstract: A method, computer program product and system, for performing computer-based on-line commerce in which a client computer issues a commercial request and a plurality of server computers is available to service said request, said method, performed by an intelligent agent, comprising steps of: receiving said request from said client computer; reviewing content-related information and business policies of each server computer of said plurality of server computers; and making decisions as to which server should serve the request based on said content-related information and said business policies.