Calling a C# function from a Javascript

I have 3 scripts: GameControl.js, DataManager.cs and GamePause.js.

The GameControl script is in the folder "Plugins".

 //GameControl.js
 public var currentXP : int = 0;
 public var maxXP : int = 10;
 public var currentLevel : int = 1;
 
 public var currentHealth : float = 45;
 public var maxHealth : int = 45;
 
 public var currentEnergy : float = 27;
 public var maxEnergy : int = 27;
 
 public var currentStrengh : int = 15;
 private var maxStrengh : int = 650;
 
 public var currentAttack : int = 11;
 private var maxAttack : int = 670;
 
 public var currentDefense : int = 20;
 private var maxDefense : int = 760;
 
 private var currentStamina : float = 25;
 public var maxStamina : int = 25;
 
 public var currentCritical : int = 5;
 private var maxCritical : int = 100;
 
 public var currentSpeed : int = 12;
 private var maxSpeed : int = 690;
 
 public var currentHP : float = 15;
 public var maxHP : int = 15;
 
 //more stuff...

The DataManager script makes like a Save and Load System, and is located in a normal folder, but this need some variables from GameControl script.

 //DataManager.cs
 using UnityEngine;
 using System.Collections;
 
 public class DataManager : MonoBehaviour
 {
     public static DataManager dataSaveAndLoad;
 
     GameControl dataVariables;
 
     float healthData;
     int maxHealthData;
     int experienceData;
     int maxExperienceData;
     int levelData;
     float energyData;
     int maxEnergyData;
     int attackData;
     int strenghData;
     int defenseData;
     int maxStaminaData;
     int criticalData;
     int speedData;
     float HPData;
     int maxHPData;
 
     void Start ()
     {
         dataVariables =    GameObject.Find("Player").GetComponent<GameControl>();
     }
 
     void Update ()
     {
         healthData = dataVariables.currentHealth;
         maxHealthData = dataVariables.maxHealth;
         experienceData = dataVariables.currentXP;
         maxExperienceData = dataVariables.maxXP;
         levelData = dataVariables.currentLevel;
         energyData = dataVariables.currentEnergy;
         maxEnergyData = dataVariables.maxEnergy;
         attackData = dataVariables.currentAttack;
         strenghData = dataVariables.currentStrengh;
         defenseData = dataVariables.currentDefense;
         maxStaminaData = dataVariables.maxStamina;
         criticalData = dataVariables.currentCritical;
         speedData = dataVariables.currentSpeed;
         HPData = dataVariables.currentHP;
         maxHPData = dataVariables.maxHP;
     }
 
     public void Save()
     {
         //...
     }
     
     public void Load()
     {
         //...
     }
 }

The problem is... How to call a C# function/void from a Javascript? The GamePause have some GUIButtons, and from this script call the DataManager functions/voids.

 //GamePause.js
 private var isPause : boolean = false;
 private var pauseWindow = new Rect (20,20,300,150);
 
 function Start ()
 {
     pauseWindow = new Rect (20,20,300,150);
 }
 
 function Update ()
 {
     if(Input.GetKeyDown(KeyCode.Escape))
     {
         isPause = !isPause;
         if(isPause == true)
         {
             Time.timeScale = 0;
             Screen.showCursor = true;
         }
         if(isPause == false)
         {
             Time.timeScale = 1;
             Screen.showCursor = false;
         }
     }
 }
 
 function OnGUI ()
 {
     if(isPause == true)
     {
         pauseWindow = GUI.Window(0,pauseWindow,PauseMenu,"Pausa");
         GUI.Box(Rect(0,0,Screen.width,Screen.height),"");
     }
     
     if(isPause == false)
     {
         Time.timeScale = 1;
         Screen.showCursor = false;
     }
 }
 
 function PauseMenu ()
 {
     if(GUILayout.Button("Continue"))
     {
         isPause = false;
     }
     GUILayout.Button("Save"); //Call Save void
     GUILayout.Button("Load"); //Call Load void
     GUILayout.Button("Game Settings");
     if(GUILayout.Button("Main Menu"))
     {
         Application.LoadLevel("MainMenu");
     }
 }