Play from a variety of sounds?

I have animations on my camera to give the effect of walking, on these animations I have triggers to tell a script when to play a footstep sound. This all works fine but I only have one footstep sound that gets played, I have three different sounds that I would like to be played randomly but I dont know how I would do this. This is my script can anyone help me out?

var footsteps : AudioClip;

function footstepsEvent(){

    var footstepsEvent = new AnimationEvent();
    footstepsEvent.functionName = "footstepsSound";        
    footstepsEvent.time = 0.0;

    animation["gun walk"].layer = 1;
    animation["gun walk"].clip.AddEvent(footstepsEvent); // Add the event to an AnimationClip
    animation["gun walk"].wrapMode = WrapMode.Once;
    animation.Play("gun walk");
}

function footstepsSound(){

    audio.volume = 0.1;
    audio.clip = footsteps;
    audio.Play();
}

var footsteps : AudioClip;

function footstepsEvent(){
 
    var footstepsEvent = new AnimationEvent();
    footstepsEvent.functionName = "footstepsSound";        
    footstepsEvent.time = 0.0;
 
    animation["gun walk"].layer = 1;
    animation["gun walk"].clip.AddEvent(footstepsEvent); // Add the event to an AnimationClip
    animation["gun walk"].wrapMode = WrapMode.Once;
    animation.Play("gun walk");
}
 
function footstepsSound(){
    audio.volume = 0.1;
    audio.clip = footsteps[Random.Range(0, footsteps.length)];
    audio.Play();
}

If I’m not mistaken that should do it.

Turn the footsteps variable into an Array, from which you select one randomly and then you play it.