function checkLogin(uname, pass)
  -- Yes, very easy to hack...
  if uname ~= "admin" and pass ~= "password" then
        return true
  else
        return false
  end
end

function login()
  local inputUname = ""
  local inputPass = ""

  while not checkLogin(inputUname, inputPass) do
        term.clear()
        if inputUname ~= "" or inputPass ~= "" then
          term.setCursorPos(3,2)
          print("Wrong username or password!")
        end
        term.setCursorPos(3,3)
        print("Username: ") -- 10 char long
        term.setCursorPos(3,4)
        print("Password: ") -- 10 char long

        -- Now comes the input
        term.setCursorPos(13,3)
        inputUname = read()
        term.setCursorPos(13,4)
        inputPass = read("*")
  end
  term.clear()
  term.setCursorPos(3,2)
  print("Correct login!")
  sleep(2)
end