Jump help!

Hi, I try to make sidescroller game but I don't know how to make my character jump...I want to make my character jump every dirction...like forward and backward and right and left...Jumping like in FPS controller.

This is my script

 var speed : float = 3.0;
 var rotateSpeed : float = 3.0;
 private var dead = false;
 private var time = true;
 private var accel = false;
 private var slow = false;
 var slowdown = 0.2;
 var score = 1f;
 var timescale = 1f;
 var acc = 0.2;
 var ReadyToFire = true;
 var ReadyToSlow = true;
 var Maxspeed = 18.0;
 var Minslow = 8.0;
 
 function timecall(){
 time = false;
 yield WaitForSeconds (1);
 timescale= timescale+1;
 time = true;
 }
 
 function OnControllerColliderHit (hit : ControllerColliderHit)
 {
      if(hit.gameObject.tag == "dead")
      {
          Application.LoadLevel(2);
      }
           if(hit.gameObject.tag == "box")
   
   
   {
      //destroy the ammo box
      Destroy(hit.gameObject);
      score = score+1;
   }
             if(hit.gameObject.tag == "turbo")
   {
      //destroy the ammo box
      Destroy(hit.gameObject);
      speed = speed+6.5;
      yield WaitForSeconds (2.75);
      speed = speed-6.5;
   }
        if(hit.gameObject.tag == "Win")
      {
          Application.LoadLevel(3);
      }
 }
 
 
 function Update () {
 var controller : CharacterController = GetComponent(CharacterController);
 var rigid : Rigidbody = GetComponent(Rigidbody);
 
 var right : Vector3 = transform.TransformDirection(Vector3.right);
 var RotateSpeed : float = rotateSpeed * Input.GetAxis ("Horizontal");
 controller.SimpleMove(right * RotateSpeed);
 // Move forward / backward
 var forward : Vector3 = transform.TransformDirection(Vector3.forward);
 var curSpeed : float = speed;
 controller.SimpleMove(forward * curSpeed);
 }
 function LateUpdate()
 {
      if(dead)
      {
          transform.position = Vector3(-0.023, 3.8, -14.89);
          gameObject.Find("Main Camera").transform.position = Vector3(-0.023, 3.8, -14.89);
          dead = false;
      }
 }
 @script RequireComponent(CharacterController)