Setting of a search condition is facilitated. A communication terminal initially displays a plurality of search panels including a search panel P1, which is an image corresponding to a search target in a certain category. Thereafter, upon a user selecting one of the search panel (here, P1), the communication terminal displays search panels P11 to P16, which are images corresponding to search targets in sub-categories of the category of the search panel P1. The user can change the search condition by moving one of the search panels P11 to P16.