need help scripting a mouse cursor in on pause

hi guys i need some help turning on and off my mouse cursor when i pause my game this what i have so far

#pragma strict

private var pauseGame : boolean = false;
private var showGUI : boolean = false;

function Update()
{
if(Input.GetKeyDown("escape"))
{
pauseGame = !pauseGame;

if(pauseGame == true)
{
Time.timeScale = 0;
pauseGame = true;
GameObject.Find("Main Camera").GetComponent(MouseLook).enabled = false;
GameObject.Find("First Person Controller").GetComponent(MouseLook).enabled = false;
showGUI = true;
}
}

if(pauseGame == false)
{
Time.timeScale = 1;
pauseGame = false;
GameObject.Find("Main Camera").GetComponent(MouseLook).enabled = true;
GameObject.Find("First Person Controller").GetComponent(MouseLook).enabled = true;
showGUI = false;
}

if(showGUI == true)
{
gameObject.Find("PausedGUI").guiTexture.enabled = true;
}

else
{
gameObject.Find("PausedGUI").guiTexture.enabled = false;
}
}