Using the Texture Swap Animator js I found in the Wiki to create a gif like texture, only showing first frame and not playing through them all

Very new to coding so it might be something small I'm over looking or forgetting but just cant seem to be able to get this code to work for me, I apply it to a plane add in all my frames and when i hit play, it just shows the first frame as the texture and that's it. any help or advice would be very appriciated

Using the TextureSwapAnimator.js :

 var frames : Texture2D[];
 var framesPerSecond = 10.0;
  
 function Update () {
     var index : int = Time.time * framesPerSecond;
     index = index % frames.Length;
     renderer.material.mainTexture = frames[index];
 }