UI Button to Toggle Animation and sound

I have been struggling with the new UI system trying to figure out a way to use C# to make a single button toggle an animation on and off with the sound. I currently can get the new UI system to work what I want with two buttons, one button turns off the animation and the other turns it back on but ideally I want to just use one button to toggle the animation and sound on and off.
This is the code I have been using for each button to call to. Is there a simple way to do this with just one button?

using UnityEngine;
using System.Collections;

public class UIManagerScript : MonoBehaviour {

	public Animator LEDlights;



	public void StopLEDLightsAnimation()
	{
		LEDlights.SetBool("isPlaying", true);

	}

	public void PlayLEDLightsAnimation()
	{
		LEDlights.SetBool("isPlaying", false);

	}
}

Here’s a toggle function. Logical condtions can be passed as bools, so:

public void PlayLEDLightsAnimation()
{
    LEDlights.SetBool("isPlaying", !LEDlights.GetBool("isPlaying") );
}

For anyone who doesn’t understand what happens here:

LEDlights.GetBool(“isPlaying”) returns either true or false. This can be passed as an argument to a function call just like an int or float or GameObject.

The ! at the begining reverses it. It is read as “not”, and functions like a logical NOT operation.

!true == false
!false == true

Hi,

Follow the below mentioned link

http://www.raywenderlich.com/79031/unity-new-gui-tutorial-part-2

It will help you understanding