content: 
  sub init()
  
      m.Top.backgroundColor="0x662d91"
      m.Top.backgroundUri="pkg:/images/space.jpg"
      m.loadingIndicator=m.Top.findNode("loadingIndicator")
      initScrStack()
      showGridScr()
      runContentTask()
  
  endsub
  
  
  '==========================================
  ' function to handle the back button on the remote
  
  function onKeyEvent(key as string, press as boolean) as boolean
      res = false
      if press = "back"
          numScreens = m.screenStack.Count()
          if numScreens > 1
              closeScr(invalid)
              res = true
          endif
      endif
      return res
  endfunction