An armrestbackrest support bracket characterised by comprising: a support provided in its lateral surface with a slot and in its end surface with a hole which communicates with said slot, a blade one end of which is insertable into said slot, locking means inserted into said hole and interacting with said support and with that blade part housed in the slot. In one implementation, a processor is provided that includes a decoder operable to decode an instruction, and a plurality of execution units operable to respectively execute a decoded instruction from the decoder. A program randomly causes trading in the live andor demo accounts according to a predetermined percentage, allowing the user to place tradesbets but without letting the user know which account is active. A bypass is provided to the cathode exhaust gas passage to allow part of the cathode exhaust gas to detour round the first humidifier and flow to the second humidifier. In particular, when the functional reinforcing filler of the present invention is used in the manufacture of tires, improvement in modulus, tensile strength, rotational resistance and wet traction performance can be expected. The tool has two steps therefore firstly being used to grasp an embedded nail and secondly being used with the hammer head engaged into the receptacle as an additional fulcrum of the hammer.