Embodiments of the present invention relate to a method for electronic commerce, a system, and a recording medium thereof, and more particularly, to a method for electronic commerce using a point on the basis of the grade of a member depending on the position and code of each of a GM member and an SM member on-line, an electronic commerce system, and a recording medium readable by a computer. A ferroelectric film is formed on the lower electrode layer while heating the lower electrode layer uniformly in the cell array region. The luminance of light emitted from the plural EL elements is thus equalized. Based on determining, by the core in the MT mode, that MT is to be disabled, the MT mode switches to the ST mode, where the primary thread of the MT mode is maintained as the primary thread of the ST mode. The pet can enter either from the front, or in other embodiments from the side of the enclosure. The magnetization centers of two adjacent magnetic poles are positionally shifted toward or away from each other by the same shift angle \u03b1 with respect to the respective geometric centerlines.