Creating a window within a window GUI

Title doesn't make very much sense,so allow me to explain.

I am trying to create a new button when this one is pressed. I did something similar in the main menu level for an options script. It is not working here though.

 #pragma strict
 
 //var startButton : Texture;
 var numLives : GUIText;
 var numIneternets : GUIText;
 
 var pauseMenu = false;
 var menuBox : Texture;
 var quit : Texture;
 
 var pauseButtonReturn : Texture;
 var pauseButton : Texture;
 var playButton : Texture;
 
 var isPaused : boolean = true;
 
 
 numLives.text = "Lives: " + ply.currentPlayerLives.ToString();
 numIneternets.text = "Internets: " + ply.internets.ToString();
 
 function menuAppear() {
         GUI.Box (Rect (Screen.width / 2 + 15, Screen.height / 2 - 100, 200, 200), menuBox,  "");
         if (GUI.Button(Rect(Screen.width / 2 + 22, Screen.height / 2 - 91, 120, 120), quit, "")) {
                 Application.Quit();
             
             
             
         }
 }
 
 function OnGUI() {
     if (GUI.Button (Rect (Screen.width / 350, (Screen.height / 2) + 240, 50, 50), pauseButton, "")) {
             if (isPaused != true) {
                 pauseMenu = false;
                 Time.timeScale = 0.0;
                 isPaused = true;
                 audio.Pause();
                 pauseButton = playButton;
                 
                 } else {
                     pauseMenu = true;
                     Time.timeScale = 1.0;
                     isPaused = false;
                     audio.Play();
                     pauseButton = pauseButtonReturn;           
                           
            }
            if (pauseMenu){
            menuAppear();
            
            }
         }
 
 }