What's wrong with my script?

Hi! Can someone explain me why is it telling me ''UCE0001: ';' expected. Insert a semicolon at the end'' ??? I don't find anything wrong...

     #pragma strict
 
 var ToucheSol:boolean=false;
 
 function Start () {
 
 }
 
 function Update () {
 
     transform.rotation.x = 0;
     transform.rotation.y = 0;
     transform.rotation.z = 0;
 
 
 if (Input.GetKeyDown ("space") && ToucheSol == true){
 
        GetComponent.<Rigidbody2D>().AddForce(Vector2(0,2000));
     }
 
     function (OnCollisionEnter2D){
 
         ToucheSol=true;
     }
     function (OnCollisionExit2D){
 
         ToucheSol=false;
     }
 
         if (Input.GetKey ("right")){
 
             transform.localScale.x = 1.380835;
 
             transform.Translate(Vector2(0.13,0));
         }
 
         if (Input.GetKey ("left")){
 
             transform.localScale.x = -1.380835;
 
             transform.Translate(Vector2(-0.13,0));
         }
 
 
 
         
     }