A customer browser and an agent browser are connected to each other through a
collaboration
server, and a Web server is controlled so as to be accessed through the collaboration
server. When the browsers and refer to a page, the collaboration server embeds
an applet for detecting a change in the page and a client controller for displaying
a page corresponding to changed page information of the other party which performs
collaboration. When the customer and agent browsers detect the change in the page,
the applet is invoked, and the changed page information is sent to the other party
via the collaboration server, and the client controller on the other party controls
the browser so as to display the changed page.
