Help with score

I need some help I can't figure out what's wrong. I want to if you're game over that the score goes into the other script. so you can see what score you have. this is what I don't know how to fix: GUI.Label(Rect(280,70,250,30), "Your Score:"+ counter); }

The score script:

function OnGUI(){

gameObject.Find("Main Camera").SendMessage("Counter");

GUI.Box(Rect(210,20,400,420), "Game Over");

GUI.Label(Rect(280,70,250,30), "Your Score:"+ counter); }

And here's the other script:

var counter : int = 0; var scoreText : GUIText;

function Update(){

scoreText.text = "Score: "+counter; function Counter(){

counter = counter;

}

function ScoreUp (){

counter+=1;

}