My bullet follows my plane...

I have a plane that shoots a bullet in 2d. One is called plane and the other called bullet! That simple! When I hit the space bar the bullet fires. If I hit the space bar and then move the plane the bullet playing its "bullet fire" animation the whole animation with the bullet moves:( I want the bullet to fire stay in one spot when the plane moves and hit something. But plane moves bullet moves... How can I fix this? Here are my codes...

This is the bullet's code...

 function Update()
 {
 if(Input.GetButton("Jump"))
     {
     animation.Play("Bullet Fire");
     }
 }

Now here is the code for the plane...

 function Update() 
 {
     if(Input.GetButton("Fire2"))
     { 
          //do something
          transform.position.x += 0.3;
     }
     else if(Input.GetButton("Fire1"))
     {
          transform.position.x -= 0.3;
     }
     
 }
 
 
 function OnCollisionEnter (col : Collision)
 {
     if(col.gameObject.name == "enemy")
     {
         Destroy(gameObject);
         Destroy(col.gameObject);
     }
 }

Thanks for helping!