Secret Staircase Control Computer Main Program

term.clear()
term.setCursorPos(1,1)
print ("Select the time for the staircase to be open for:")

term.setCursorPos(1,3)
print ("[10 Seconds]")
print ("[15 Seconds]")
print ("[20 Seconds]")
print ("[Maintenance Mode (permanent)]")

event,button, xPos, yPos = os.pullEvent("mouse_click")

if xPos >= 1 and xPos <= 12 and yPos == 3 then
  rs.setOutput("bottom", true)
  sleep(10)
  rs.setOutput("bottom", false)
end

if xPos >= 1 and xPos <= 12 and yPos == 4 then
  rs.setOutput("bottom", true)
  sleep(15)
  rs.setOutput("bottom", false)
end

if xPos >= 1 and xPos <= 12 and yPos == 5 then
  rs.setOutput("bottom", true)
  sleep(20)
  rs.setOutput("bottom", false)
end

if xPos >= 1 and xPos <= 30 and yPos == 6 then
  rs.setOutput("bottom", true)
  local exitMaintenanceMode = io.read()

  if exitMaintenanceMode == ABORT then
    rs.setOutput("bottom", false)
  end
end