Abstract: An image display control method and its system for this method in an information processing unit sequentially changing a series of image contents to display images on the screen. Image content information for displaying image contents on the information processing unit and screen transition process information for performing an screen transition process on a series of image contents are made separate and generated separately. One frame of the display image of the information processing unit consists of one parent frame and two child frames in the parent frame. The image content information is stored in one child frame and the screen transition process information is stored in the other child frame, and a series of image contents is sequentially moved to display images on the screen.