Problem with Crouch Script!

This is the Script:

using UnityEngine;
using System.Collections;

public class Ducken : MonoBehaviour {

var tongle = 0; var localScale ; Vector3 : //var JumpSpeed = 100.0f;

function Start () {
Screen.showCursor = false; }


function Update () {

if (tongle == 0){ if
(Input.GetKeyDown
(KeyCode.LeftControl)) {
				
transform.localScale +=
Vector3(0.0,-1,0); tongle = 1; 
} return; }


if (tongle == 1){ if
(Input.GetKeyDown
(KeyCode.LeftControl)) { 
transform.position.y += 0.5; 
transform.localScale +=
Vector3(0.0,1,0); tongle = 0; 
} return; }
}
}

In Unity it says:
Assets/Ducken.cs(6,42): error CS1519: Unexpected symbol `:’ in class, struct, or interface member declaration

But i cant find anything wrong in Line 6, hope you can help me!

Change the line:

var tongle = 0; var localScale ; Vector3 :

to be:

var tongle = 0; 
var localScale : Vector3;

You had your : and ; in the wrong order