content: sub init()
  	? "[answer_screen] init"
  	m.answer_list = m.top.findNode("answer_list")
  	m.answer_list.setFocus(true)
  	m.top.observeField("visible", "onVisibleChange")
  
  	'set the text size of the question
  	m.questionText = m.top.findNode("questionText")
  	m.questionText.font.size = "70"
  
  	'music player
  	audio = createObject("roSGNode", "Audio")
  	audiocontent = createObject("RoSGNode", "ContentNode")
  	audiocontent.url = "pkg:/components/sounds/bg_music.mp3"
  	audio.content = audiocontent
  	m.top.appendChild(audio)
  	audio.control = "play"
  	audio.loop = true
  end sub
  
  sub onVisibleChange()
  	if m.top.visible = true then
  		m.answer_list.setFocus(true)
  	end if
  end sub