[Problem] To make it possible to switch display of plural windows depending on a situation such as a time and a place.[Solution] A mobile communication terminal stores condition data for applications that display a window. Condition data is data describing for applications, an application (namely, a window), an attribute of a location associated with the application, and a frequency at which the application has been executed. The mobile communication terminal, if plural overlapping windows are displayed, determines a window to be displayed on top, using the condition data. For example, the mobile communication terminal, if an attribute of a location of the terminal is “office”, and an application “groupware” is running, displays a window of the application on top.