content: function onKeyEvent(key as string, press as boolean) as boolean
      if (not press)
          return false
      end if
  
      rowItemFocused = m.top.content.getChild(0).getChild(m.top.rowItemFocused[1]) 
  
      if (key = "up")
          rowItemFocused.focusedButton = "up"
      end if
  
      if (key = "down")
          rowItemFocused.focusedButton = "down"
      end if
  
      if (key = "OK")
          if (rowItemFocused.focusedButton = "up")
              ? "play channel"
          else if (rowItemFocused.focusedButton = "down")
              if (rowItemFocused.state = "Follow")
                  rowItemFocused.state = "Unfollow"
              else
                  rowItemFocused.state = "Follow"
              end if
          end if
      end if
  
      return false
  end function
  