Simple EXP Script In Javascript

Okay so I have taken previous examples and modified them briefly to try and get this to work. I have two scripts one for the enemy and one for the Player. Here is my enemy script.

 #pragma strict
 #pragma downcast
 
 public var hitPoints = 100.0;
 var deathEffect : Transform;
 var effectDelay = 0.0;
 private var gos : GameObject[];
 var multiplier : float = 1;
 var deadReplacement : Rigidbody;
 @HideInInspector
 var playerObject : GameObject;
 var useHitEffect : boolean = true;
 var expVal : int = 20;
 @HideInInspector
 var isEnemy : boolean = false;
 var expScript : ExperienceSystem;
 
 function ApplyDamage(Arr : Object[]){
     //Info array contains damage and value of fromPlayer boolean (true if the player caused the damage)
     //Find the player if we haven't
     if(Arr[1] == true){
         if(!playerObject){
             playerObject = GameObject.FindWithTag("Player");
         }
         if(useHitEffect){
             playerObject.BroadcastMessage("HitEffect");
         }
         
     }
     
     // We already have less than 0 hitpoints, maybe we got killed already?
     if (hitPoints <= 0.0)
         return;
     var tempFloat : float;
     tempFloat = Arr[0];
     //float.TryParse(Arr[0], tempFloat);
     hitPoints -= tempFloat*multiplier;
     if (hitPoints <= 0.0) {
          
         var emitter : ParticleEmitter = GetComponentInChildren(ParticleEmitter);
         if (emitter)
             emitter.emit = true;
 
         Invoke("DelayedDetonate", effectDelay);
         
     }
 
     
 }
 
 function ApplyDamagePlayer (damage : float){
     //Info array contains damage and value of fromPlayer boolean (true if the player caused the damage)
     //Find the player if we haven't
     if(!playerObject){
         playerObject = GameObject.FindWithTag("Player");
     }
     if(useHitEffect){
         playerObject.BroadcastMessage("HitEffect");
     }
     
     // We already have less than 0 hitpoints, maybe we got killed already?
     if (hitPoints <= 0.0)
         return;
     //float.TryParse(Arr[0], tempFloat);
     hitPoints -= damage*multiplier;
     if (hitPoints <= 0.0) {
         // Start emitting particles
         var emitter : ParticleEmitter = GetComponentInChildren(ParticleEmitter);
         if (emitter)
             emitter.emit = true;
 
         Invoke("DelayedDetonate", effectDelay);
     }
 }
 
 function ApplyDamage (damage : float){
     //Info array contains damage and value of fromPlayer boolean (true if the player caused the damage)
     //Find the player if we haven't
     
     // We already have less than 0 hitpoints, maybe we got killed already?
     
     
     
     if (hitPoints <= 0.0){
         return;
         }
 
     //float.TryParse(Arr[0], tempFloat);
     hitPoints -= damage*multiplier;
     if (hitPoints <= 0.0) {
         // Start emitting particles
         var emitter : ParticleEmitter = GetComponentInChildren(ParticleEmitter);
         if (emitter)
             emitter.emit = true;
 
         Invoke("DelayedDetonate", effectDelay);
         }
         
         if (hitPoints <= 0.0) {
             GameObject.Find("Player").GetComponent(ExperienceSystem).GiveXP(expVal);
             // Start emitting particles
         }
     
 
 }
 
 function Detonate(){
     if(isEnemy)
         EnemyMovement.enemies--;
     // Create the deathEffect
     if (deathEffect)
         Instantiate (deathEffect, transform.position, transform.rotation);
 
     // If we have a dead replacement then replace ourselves with it!
     if (deadReplacement) {
         var dead : Rigidbody = Instantiate(deadReplacement, transform.position, transform.rotation);
 
         // For better effect we assign the same velocity to the exploded gameObject
         dead.rigidbody.velocity = rigidbody.velocity;
         dead.angularVelocity = rigidbody.angularVelocity;
     }
     
     // If there is a particle emitter stop emitting and detach so it doesnt get destroyed right away
     var emitter : ParticleEmitter = GetComponentInChildren(ParticleEmitter);
     if (emitter){
         emitter.emit = false;
         emitter.transform.parent = null;
     }
     BroadcastMessage ("Die", SendMessageOptions.DontRequireReceiver);
     Destroy(gameObject);
 
 }
 function DelayedDetonate(){
     BroadcastMessage ("Detonate");
 }

Okay so in the second ApplyDamage(); function I have an if statement that should send a value of 20 to my giveXP function for my player script. Here is that script.

 var guiTextEXP : GUIText;
 var accumulatedExperiencePoints : int = 0;
 var levelExpRequirements : int = 1000;
 var currentLevel : int = 1;
 var xp : int;
 
 function GiveXP(addedXP : int)
 {
     
     if (addedXP < 0)
     {
         Debug.Log("Can't remove exp!");
         return;
     }
 
     xp+=addedXP;
  
     if (accumulatedExperiencePoints >= levelExpRequirements)
     {
         levelExpRequirements += 1000;
         currentLevel += 1;
     }
     
 }

Now it am trying to get the first script to update the amount of accumulatedExperiencePoints that I have. But I am not sure how to do that. Can someone just point my in the right direction because I am clearly missing something lol. Thank you so much :)