Mecanim Boolean

Hello, I've made an animation script for my character using the mecanim parameter, float. Now i need to use a Boolean and i don't think I'm using it correctly, I'm not getting any errors but It's just not working.

 #pragma strict
 
 var animator : Animator; //stores the animator component
 var v : float; //vertical movements
 var h : float; //horizontal movements
 var Sprint : float;
 var Shoot : boolean;
 
 function Start () 
 {
     animator = GetComponent(Animator); //asigns animator component when game is tarted
     
 }
 
 function Update ()
 {
     v = Input.GetAxis("Vertical");
     h = Input.GetAxis("Horizontal");
     Sprinting();
 }
 
 function FixedUpdate ()
 {
     //set the "Walk" parameter to the v axis value
     animator.SetFloat ("Walk", v);
     animator.SetFloat("Sprint", Sprint);
     animator.SetBool("Shooting", true);
 }
 
 function Sprinting ()
 {
     if(Input.GetButton("Sprint"))
     {
         Sprint = 0.2;
     }
     else
     {
         Sprint = 0.0;
     }
 }
 
 function Shooting ()
 {
     if(Input.GetButton("f"))
     {
         Shooting == true;
     }
     else
     {
         Shooting == false;
     }
 }