The system for the object control method according to an embodiment is a client/server system with a Web server (10) and a user terminal (20) connected through Internet (30). In the system for the object control method, a script (object control program) is embedded in a Web page to be transmitted from the Web server (10) and executed by the user terminal (20). The Web page contains a plurality of link elements (elements with links to other Web pages). A computer terminal having read the object control program displays a plurality of icons superimposed in front of the link elements in the Web page. Further, when a specified event is detected, (a) change the placement position of a specific icon, (b) temporarily or completely remove a specific icon, or (c) change the placement positions of a plurality of specific icons, for example, according to the event type.