function open_CommonArti()

	local joker = math.random(1,500)
	
	if joker >= 450 then
		insert_item(540070, 1, 0, 0, -2147483648)
		cprint("You have received <b>x1 [ "..get_item_name_by_code(540069).." ]</b>.")
	else
		local arti = math.random(560375, 560385)
		insert_item(arti, 1, 0, 1, 1)
		cprint("You have received <b>x1 [ "..get_item_name_by_code(arti).." ]</b>.")
	end
		
end