var GUIon:boolean;

function Start()
{
	GUIon = false;
	Screen.lockCursor = true;
}

function Update()
{
	if(Input.GetButtonDown("Menu"))GUIon=!GUIon;
}
function OnGUI()
{
	if(GUIon)
	{
		Screen.lockCursor = false;
		GUI.Box (Rect (0,0,500,300), "FOV");

		if (GUI.Button (Rect (20,20,80,80), "FOV = 70"))
		{
			Camera.main.fieldOfView = 70;
		}
		else if (GUI.Button (Rect (100,20,80,80), "FOV = 80"))
		{
			Camera.main.fieldOfView = 80;
		}
		else if (GUI.Button (Rect (180,20,80,80), "FOV = 90"))
		{
			Camera.main.fieldOfView = 90;
		}
	}
	else if(!GUIon && !Screen.lockCursor)
	{
		Screen.lockCursor = true;
	}
}