content: sub init()
      m.title = m.top.findNode("title")
      m.description = m.top.findNode("description")
      m.thumbnail = m.top.findNode("thumbnail")
      m.play_button = m.top.findNode("play_button")
      m.top.observeField("visible", "onVisibleChange")
  
      m.play_button.setFocus(true)
  end sub
  
  sub onVisibleChange()
      if m.top.visible = true then
          m.play_button.setFocus(true)
      end if
  end sub
  
  sub OnContentChange(obj)
      item = obj.getData()
      m.title.text = item.title
      m.description.text = item.description
      m.thumbnail.uri = item.HDGRIDPOSTERURL
  end sub
  