How can I move back to Element 0 in an array to reset a loop?

Hi, I have an array that loops but will change to another array once a condition is met. After that array is over, I want it return to the first. I need it to return at Element 0, however. Instead, it just picks up where it left off in the original sequence. Any ideas?

 private var csScript : Main;
 
 var textures : Texture[];
 var changeInterval : float = 0.33;
 
 var textures2 : Texture[];
 
 var changeMe : boolean = false;
 
 function Awake()
 {
     //Get the CSharp Script
     csScript = this.GetComponent("Main");//Don't forget to place the 'CSharp1' file inside the 'Standard Assets' folder
 }
 
 function Update() {
 
 
 
 
 if( textures.length == 0 ) // nothing if no textures
 return;
 // we want this texture index now
 var index : int = Time.time / changeInterval;
 var index2 : int = Time.time / changeInterval;
 // take a modulo with size so that animation repeats
 if(csScript.janneleIsWaiting){
  index = index % textures.length;
 // assign it
  renderer.material.mainTexture = textures[index];
 }
 
 
 if(csScript.janelleWorried){
     print("so so worried");
      index2 = index2 % textures2.length;
 // assign it
  renderer.material.mainTexture = textures2[index2];
      reset();
     }
 
 
 }
 
 function reset(){
 
 
 
 yield WaitForSeconds(.35);
 csScript.janneleIsWaiting = true;
 csScript.janelleWorried = false;
 csScript.janelleHappy = false;
 
 }