Time.timeScale doesnt work with GUI?

Okay so I have a simple pause script and it has a resume button. If you pause(esc) the time.timeScale is 0 and all is well and if you hit escape again it goes back to 1 and all is still good. But for some reason the resume button doesnt work. If you hit resume, the menu will go away but the time will still be 0. using UnityEngine; using System.Collections;

 public class PauseScript : MonoBehaviour {
 
     //public GUISkin mySkin;
 
     private Rect windowRect;
     private bool paused = false;
 
     private void Start(){
         windowRect = new Rect (Screen.width / 2 - 100, Screen.height / 2 - 100, 200, 200);
     }
 
     void Update () {
         if (Input.GetKeyDown(KeyCode.Escape)){
             if (Time.timeScale == 1){
                 Time.timeScale = 0;
                 paused = true;
             }
             else
             {
                 Time.timeScale = 1;
                 paused = false;
             }
         }
     }
     private void OnGUI(){
         if (paused) {
             windowRect = GUI.Window(0, windowRect, windowFunc, "Pause Menu");
         }
     }
     private void windowFunc(int id){
         if(GUILayout.Button("Resume")){
                 Time.timeScale = 1;
                 paused = false;
         }
         if(GUILayout.Button("Main menu")){
             Application.LoadLevel(0);
             Time.timeScale = 1;
         }
         if(GUILayout.Button("Reload Level")){
             Application.LoadLevel(Application.loadedLevel);
             Time.timeScale = 1;
         }
         if(GUILayout.Button("Quit")){
             Application.Quit();
         }
     }
 }