A garment hanger adapted for hooking over a clothes rail. The display device has a remote power supply control function of activating or deactivating the image capturing apparatus via a circuit. As an alternative mode, a corresponding transaction can merely read and store a current value of the globally accessible version information variable without attempting to update the globally accessible version information variable before such use. The medicament may be applied by the user to the pad, contained within the pad or contained in rupturable capsules within the pad, together with a hydrogel if necessary for imparting electrical conductivity whereby, upon application of the applicator to the treatment site, the medicament is electrokinetically transported into the treatment site. The said composite catalyst would have better prospects in application.