Please help me with my mouse pointer

I have code for an inventory system implemented.. but when I press I, the inventory comes up but my mouse pointer does not show as well as my camera does not stop moving..the game pauses but i can still move my "head' so to speak.

Please help me get my pointer to show and dissapear

 #pragma strict
 
 var menuSkin : GUISkin;
 
 var wood : int = 0;
 var stone : int = 0;
 var clay : int = 0;
 
 var fish : int = 0;
 var cookedFish : int = 0;
 
 var bottle : int = 0;
 var bottledWater : int = 0;
 
 var bandage : int = 0;
 
 var minimumVal : int = 0;
 
 private var showGUI : boolean = false;
 
 private var playerGUI : PlayerGUI;
 
 function Start()
 {
     Cursor.visible = false;
     //Cursor.lockState = CursorLockMode.Locked;
     playerGUI = GameObject.Find("FPSController").GetComponent(PlayerGUI);    
 }
 
 function Update()
 {
     
     if(wood <= 0)
     {
         wood = minimumVal;
     }
     
     if(stone <= 0)
     {
         stone = minimumVal;
     }
     
     if(clay <= 0)
     {
         clay = minimumVal;
     }
     
     if(fish <= 0)
     {
         fish = minimumVal;
     }
     
     if(cookedFish <= 0)
     {
         cookedFish = minimumVal;
     }
     
     if(bottle <= 0)
     {
         bottle = minimumVal;
     }
     
     if(bottledWater <= 0)
     {
         bottledWater = minimumVal;
     }
     
     if(bandage <= 0)
     {
         bandage = minimumVal;
     }
     
     if(Input.GetKeyDown("i"))
     {
         showGUI = !showGUI;
     }
     
     if(showGUI == true)
     {
         Time.timeScale = 0;
         GameObject.Find("FPSController").GetComponent(FPSInputController).enabled = false;
         GameObject.Find("FPSController").GetComponent(MouseLook).enabled = false;
         GameObject.Find("FirstPersonCharacter").GetComponent(MouseLook).enabled = false;
         GameObject.Find("FPSArms_Axe@Idle").GetComponent(PlayerControl).enabled = false;
         GameObject.Find("FirstPersonCharacter").GetComponent(RayCastCollect).enabled = false;
     }
     
     if(showGUI == false)
     {
         Time.timeScale = 1;
         GameObject.Find("FPSController").GetComponent(FPSInputController).enabled = true;
         GameObject.Find("FPSController").GetComponent(MouseLook).enabled = true;
         GameObject.Find("FirstPersonCharacter").GetComponent(MouseLook).enabled = true;
         GameObject.Find("FPSArms_Axe@Idle").GetComponent(PlayerControl).enabled = true;
         GameObject.Find("FirstPersonCharacter").GetComponent(RayCastCollect).enabled = true;
     }
 }
 
 function OnGUI()
 {
     if(showGUI == true)
     {
         GUI.skin = menuSkin;
             GUI.BeginGroup(new Rect(Screen.width / 2 - 150, Screen.height / 2 - 150, 300, 300));
                 GUI.Box(Rect(0, 0, 300, 300), "Basic Inventory");
                 
                 //Resources collected
                 GUI.Label(Rect(10, 50, 50, 50), "Wood");
                 GUI.Box(Rect(60, 50, 20, 20), "" + wood);
                 
                 GUI.Label(Rect(90, 50, 50, 50), "Stone");
                 GUI.Box(Rect(130, 50, 20, 20), "" + stone);
                 
                 GUI.Label(Rect(170, 50, 50, 50), "Clay");
                 GUI.Box(Rect(200, 50, 20, 20), "" + clay);
                 
                 
                 //Empty holders
                 GUI.Label(Rect(10, 130, 50, 50), "Fish");
                 GUI.Box(Rect(60, 130, 20, 20), "" + fish);
                 
                 GUI.Label(Rect(10, 150, 50, 50), "Bottle");
                 GUI.Box(Rect(60, 150, 20, 20), "" + bottle);
                 
                 //Edable items
                 GUI.Label(Rect(10, 190, 50, 50), "FOOD");
                 GUI.Box(Rect(60, 190, 20, 20), "" + cookedFish);
                 if(GUI.Button(Rect(100, 190, 100, 20), "Eat Food"))
                 {
                     if(cookedFish >= 1)
                     {
                         cookedFish--;
                         Eat();
                     }
                 }
                 
                 GUI.Label(Rect(10, 210, 50, 50), "Water");
                 GUI.Box(Rect(60, 210, 20, 20), "" + bottledWater);
                 if(GUI.Button(Rect(100, 210, 100, 20), "Drink Water?"))
                 {
                     if(bottledWater >= 1)
                     {
                         bottledWater--;
                         Drink();
                     }
                 }
                 
                 GUI.Label(Rect(10, 240, 50, 50), "Heal");
                 GUI.Box(Rect(60, 240, 20, 20), "" + bandage);
                 if(GUI.Button(Rect(100, 240, 100, 20), "Use Bandage?"))
                 {
                     if(bandage >= 1)
                     {
                         bandage--;
                         Heal();
                     }
                 }
                 GUI.EndGroup();
     }
 }
 
 function Eat()
 {
     playerGUI.hungerBarDisplay += 0.1;
 }
 
 function Drink()
 {
     playerGUI.thirstBarDisplay += 0.1;
 }
 
 function Heal()
 {
     playerGUI.healthBarDisplay += 0.1;
 }