An image display system includes: an image input apparatus and an image display apparatus connected thereto that displays an image obtained. A player sets his three cards into two Texas Hold’em type hands, each having two cards, by selecting from among the three cards one card that is shared with each of the other two cards to form a two-card hand. This transistor includes a pair of impurity diffusion regions and a gate electrode. A controller turns the bi-directional switching circuit on and off to enable or disable conduction of power from the AC power source, wherein the bi-directional switching circuit is turned on in association with a detected zero voltage state for AC input power, and the bi-directional switching circuit is turned off in association with a detected zero current state for AC input power. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.