Creating Timer Counter that scales 3D models

Unity Engine
1

Hey Im quite new to scripting and have been trying to get this to work for the past few hours and basicly i am creating a timer and each time that timer goes up by 1 i would like it to scale my object by 0.5 this is what i have so far

function Start () {

var Timer = 0.0;
Vector3 Scale = 0.5,0.5,0.5;

}
function Update ()
{
Timer += Time.deltaTime;
if (Timer + 1) transform.localScale += Scale;
}

as i said i am quite new and would love any help i could get

2 
#pragma strict

function Start ()
{
}
function Update ()
{
	driveBackwards();
}




var timer : float = 2.5;
var scale : Vector3; // In the Inspector add for example x=1, y = 1, z=0.


function driveBackwards()
{
	timer -= Time.deltaTime;
	
	if (timer <= 0)
	{
		transform.localScale += scale;
		// This reset to the cuurent value variable.
		timer = 2.5;
	}	
}
3

And to stop scaling:

#pragma strict

function Start ()
{
}
function Update ()
{
	driveBackwards();
}




var timer : float = 2.5;
var scale : Vector3; // In the Inspector add for example x=1, y = 1, z=0.


var turnOff : boolean = true;


var curTime : float = 0; // start
var finalTime : float = 4; // max




function driveBackwards()
{
	if (turnOff)
	{
		timer -= Time.deltaTime;
		
		if (timer <= 0)
		{
			transform.localScale += scale;
			// This reset to the cuurent value variable.
			timer = 2.5;
			CountAnOff ();
		}	
	}	
}


function CountAnOff ()
{
	curTime += 1;
	
	if (curTime >= finalTime)
	{
		turnOff = false; // Stop scaling
		timer = 0;
	}
}

GOOD Luck:)