rednet.open("top")
function togglelights()
 state = rs.getOutput("left")
 if state==true then
  rs.setOutput("left", false)
  return false
 else
  rs.setOutput("left", true)
  return true
 end
end
while true do
event, id, text = os.pullEvent()
if event=="rednet_message" then
 if text=="togglelights" then
 if togglelights()==true then
  rednet.send(id, "The lights have been turned on")
 else
  rednet.send(id, "The light have been turned off"
 end
 end
end
end