-- Add choice buttons

  local choices = self.message.choices

  self.choice_buttons = {}

  local orig_y = 175

  if choices then

    for i = 1, #choices do

      local y = orig_y + ((i-1) + (3-#choices)) * 48

      local choice = choices[i].choice

      local additionalInfo = choices[i].additionalInfo

      -- NB: both nil and true result in enabled; also handle old "disabled" choice

      local enabled = (choices[i].enabled ~= false) and (choice ~= "disabled")

      local --[[persistable:fax_choice_button]] function callback()

        self:choice(choice,additionalInfo)

      end

      self.choice_buttons[i] = self:addPanel(17, 492, y):makeButton(0, 0, 43, 43, 18, callback)

        :setDisabledSprite(19):enable(enabled)

    end

  end