I made a pause script for the game im developing for android.

I added the script to the GUITexture I created and placed on the top right side of the screen.The issue stands at the part where if the player clicks the pause button then clicks resume then he wants to pause the game again.When he clicks pause the second time the buttons dont show up unless he clicks again.

This is the script :

#pragma strict

var paused = false;
var isButtonVisible : boolean = true;

function OnMouseDown(){
this.paused = !this.paused;
   Time.timeScale = 0;
           isButtonVisible = true;
}

function OnGUI(){

if ( isButtonVisible ) {
if(this.paused){
    if (GUI.Button(Rect(Screen.width/2-100,Screen.height/2+3,200,50),"Restart")){
Application.LoadLevel(Application.loadedLevel);
Time.timeScale = 1;
    isButtonVisible = false;
    }

    if (GUI.Button(Rect(Screen.width/2-100,Screen.height/2-50,200,50),"Resume")){
Time.timeScale = 1;
    isButtonVisible = false;
}
    // Insert the rest of the pause menu logic

            if (GUI.Button(Rect(Screen.width/2-100,Screen.height/2+56,200,50),"Main Menu")){
            Application.LoadLevel ("MainMenu");
                    isButtonVisible = false;
                    Time.timeScale = 1;
            }

    }
  }
}

Thank you.