1. A touch responsive display unit comprising: a second touch panel disposed on a display screen; a first touch panel disposed on the second touch panel; first position detecting means for detecting a touching position of an indicator on the first touch panel when the indicator designates a predetermined position on the display screen; second position detecting means for detecting a touching position of the indicator on the second touch panel when the indicator designates the predetermined position on the display screen; and control means for executing first transaction according to a detection result of the first position detecting means, setting a display state on the display screen to a first display state according to the touching position of the indicator on the first touch panel detected by the first position detecting means, executing second transaction according to a detection result of the second position detecting means, and setting a display state on the display screen to a second display state according to the touching position of the indicator on the second touch panel detected by the second position detecting means.