Unity 4.6 UI Pause Menu with Input Access

public class PlayerInGameMenu : MonoBehaviour
{
  public EventSystem eventSystem;
  public bool IsUsingDebugging = true;

  Selectable SelectedButton;
  public Selectable Status;
  public Selectable Settings;
  public Selectable Save;
  public Selectable Quit;

  public bool Paused;

  List<Selectable> buttons;
  int selecteButtonIndex = 0;

  public Canvas Menu;

  void Start()
  {
    Menu.enabled = false;
    buttons = new List<Selectable>();
    buttons.Add(Status);
    buttons.Add(Settings);
    buttons.Add(Save);
    buttons.Add(Quit);
    SelectedButton = buttons[0];

  }

  void Update()
  {

    CheckInput();

    if (Paused && !Menu.enabled)
    {
      ShowMenu();
    }
    else if (!Paused && Menu.enabled)
    {
      HideMenu();
    }
  }

  void ShowMenu()
  {
    Paused = true;
    Menu.enabled = true;
    Time.timeScale = 0.0f;
  }

  void HideMenu()
  {
    if (Menu.enabled)
    {
      Paused = false;
      Menu.enabled = false;
      Time.timeScale = 1.0f;
    }
  }

  void CheckInput()
  {
    if (cInput.GetKeyDown("Pause"))
    {
      Paused = !Paused;
      SelectedButton = buttons[selecteButtonIndex];
      eventSystem.SetSelectedGameObject(SelectedButton.gameObject, new BaseEventData(eventSystem));
    }

    if (Paused)
    {
      float v = cInput.GetAxis("Vertical");

      if (v >= 0.5)
      {
        StartCoroutine(CoroutineUtil.DeferredExecutorByEndOfFrame(() =>
        {
          GoDown();
        }));
      }
      else if (v <= -0.5)
      {
        StartCoroutine(CoroutineUtil.DeferredExecutorByEndOfFrame(() =>
        {
          GoUp();
        }));
      }
    }
  }

  void GoDown()
  {
    if (selecteButtonIndex > buttons.Count - 1)
    {
      selecteButtonIndex = buttons.Count - 1;
    }
    else
    {
      selecteButtonIndex = selecteButtonIndex + 1;
    }
  }

  void GoUp()
  {
    if (selecteButtonIndex < 0)
    {
      selecteButtonIndex = 0;
    }
    else
    {
      selecteButtonIndex = selecteButtonIndex - 1;
    }
  }
}