Calling c# function from a JS

Hi I have a script (written in c#) that I need to use from my unity script system. I have looked around at how to invoke a function inside the c# script but cannot find anything that helps me.

Before you ask, the c# files are located in the standard assets and get compiled before the java script files.

The error I get when trying to invoke the function is as follows: "It's not possible to invoke an expression of type 'error'. (BCE0077)

The c# function has a void return type. See the complete code below.

 //GameMaster.js
 enum GameMode{MENU, PLAYING};
 var playerSpawn : GameObject;
 var playerPrefab : GameObject;
 var player : Player;
 var toggleType : String;
 var gameTimeElapsed : double;
 var maxGameTime : double;
 var gameMode : GameMode;
 var stringToEdit : String;
 var gameFont : GameFont; //c# script
 var enemies = Array();
 
 function Awake()
 {
     gameFont = gameObject.GetComponent(GameFont); //get the c#script
 }
 function Start()
 {
     gameFont.AddText("Hello", 32, 40); //error see post
     //SetupMenu();
     //SetupGame();
 }
 
 //GameFont.cs
 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class GameFont : MonoBehaviour 
 {
     public TextAsset fontXML;
 
     public SpriteManager spriteManager;
     BitmapFont bmf;
     
     void Start () 
     {
         spriteManager = GameObject.Find("SpriteManager").GetComponent<SpriteManager>();
         bmf = new BitmapFont(fontXML.text, 0, 0);
     }
     
     void AddText(string text, int x, int y)
     {
         AddText(bmf, text, x, y);    
     }
     void AddText(BitmapFont bmf, string text, int x, int y)
     {
         List<BitmapFont.Sprite> sprites = bmf.GetSprites(text, 0, 0);
         
         foreach(BitmapFont.Sprite s in sprites)
         {
             GameObject go = new GameObject("Glyph \"" + s.c + "\"");
             go.transform.position = new Vector3(s.x + x + s.texCoords.width/2, Screen.height - y - s.y + s.texCoords.height/2, 0.0f);
             
             spriteManager.AddSprite(go, s.texCoords.width, s.texCoords.height, (int)s.texCoords.x, (int)s.texCoords.y + (int)s.texCoords.height, (int)s.texCoords.width, (int)s.texCoords.height, false);
         }
     }    
 }

I am using the package created by this guy: http://forum.unity3d.com/threads/87782-Pixel-Perfect-Bitmap-Font-in-Unity