Connecting 2 scripts(javascpt)?

Hello,

i want to ask how to link two scripts because i want to make a counter that is shown in a score box. I created a var "ScoreCounter" and a seperate script for my Score but i can't import the var form one script to the other

script for the GUI

 #pragma strict
 
 var Pos1 : float = 400;
 var    Pos2 : float = 15;
 var    Pos3 : float = 155;
 var Pos4 : float = 25;
 function Update () {
 
 }
 
 function OnGUI () {
     // Make a background box
     GUI.Box (Rect (Pos1,Pos2,Pos3,Pos4), "Score: " + ScoreCounter);
 }

script for the counter

 #pragma strict
 
 static var ScoreCounter : int = 0;
 var touchCoin : boolean = false;
 
 function Update () {
     if(touchCoin == true)
     {
         Destroy(gameObject);
         ScoreCounter += 1;
         Debug.Log("Destroy Coin and add 1");
     }
 }
 
 
 function OnCollisionEnter2D (coll: Collision2D)
 {
     if(coll.collider.tag == "Player")
     {
         touchCoin  = true;
         Debug.Log("Coin is touching");
     }    
 }

I hope somebody is able to help me :)

Greetings GreenTee