Android GUI Button problem

I'm having a problem with one of my GUI buttons on Android. I was able to make a pause/resume script that worked with a GUI button for touch devices. But when I try to make a GUI button that uses the Fire function in my script, it does not seem to work on the device. However, on Unity Remote the button works fine, and it works when I click on it with the mouse as well. I'm wondering if anyone can help me with this problem?

This is the pause script:

 var paused : boolean = false;
 var myCheck : boolean = false;
 
 function Update () {
     if(Input.GetButtonDown( "Pause" ) ) {
     if (!paused) {
     Time.timeScale = 0;
     paused = true;
     }else{
     Time.timeScale = 1;
     paused = false;
         }
     }
 }
 
 function OnGUI() {
     if(GUI.Button (Rect ( 0, 20, 100, 30), "Pause")) {
         Time.timeScale = 0;
         paused = true;
     }
     
     if( paused ) {
         if(GUI.Button (Rect ( 0, 50, 100, 30), "Resume" )) {
     Time.timeScale = 1.0f;
     paused = false;
 
     }
 
     if(GUI.Button (Rect ( 0, 90, 100, 30), "Options" )) {
 
     }
     
     if(GUI.Button (Rect ( 0, 130, 100, 30), "Quit" )) {
                 }
             }
         }

This is the script that calls the Fire function with a GUI button:

 var Projectile: Transform;
 var fireRate: float = 0.3;
 private var nextFire: float = 2.0;
 var Ammo : int = 30;
 var gunFire : AudioClip;
 var reload : AudioClip;
 var empty : boolean = false;
 var reloadgui : GUIStyle;
 var levelloaded : boolean = true;
 
 function Update () {
 
 if(Input.GetButtonDown( "Shoot" )){
     Fire();
     }
 if(Input.GetKeyUp("r")){
 if(empty){
     Reload();
     }
 }
 
 if(Ammo <= 0){
 empty = true;
 }
 else{
 empty = false;
 }
 
 }
 
 function Fire(){
 audio.PlayOneShot(gunFire);
     nextFire = Time.time + fireRate;
     
     var shot = Instantiate(Projectile, transform.position, Quaternion.identity);
     shot.rigidbody.AddForce (transform.forward * 1000);
     Ammo--;
 }
 
 function Reload(){
 audio.PlayOneShot(reload);
 Ammo = 30;
 
 }
 
 function OnGUI(){
 if ( levelloaded ) {
     if(GUI.Button(Rect ( 0, 150, 120, 120), "Fire")) {
         if(Ammo > 0){
             audio.PlayOneShot(gunFire);
                 nextFire = Time.time + fireRate;
                 var shot = Instantiate(Projectile, transform.position, Quaternion.identity);
                 shot.rigidbody.AddForce (transform.forward * 1000);
                 Ammo--;
         }
         else{
         return;
         }
         }
     }    
     GUI.Box (Rect (Screen.width - 100, 20, 100, 80), "");
     GUI.Label (Rect (Screen.width - 100, 35, 90, 20), "Ammo:" + Ammo);
     GUI.Label (Rect (Screen.width - 100, 20, 90, 20), "Health" + playerhealth.currentHealth);
 
     if(empty){
     GUI.contentColor = Color.red;
     GUI.Label (Rect (Screen.width - 100, 50, 90, 20), "RELOAD");
     if(GUI.Button (Rect (10,10,30,30), "RELOAD", reloadgui)){
     if(empty){
         Reload();
             }
         }
     }
 }

I'm fairly new to javascript, so if this looks messy, don't be surprised. Any help would be greatly appreciated.