Reversing rotation back to zero

Hi there,

I have this code which works great. I can rotate my object to 180 and then reset it. What I want to do is have another state which allows me to go from 180 to zero. I had a play with the values, but can't get it to work. Any ideas on how this should work?

Many thanks,

Rich

 var LoadChapterPageCollider : GameObject;
 var speed = 100.0;  // Degrees per second 
 private var myEuler = Vector3(0,0,0);
 private var rotating = false;
 
 var IntroPage : GameObject;
 var ChapterPage : GameObject;
 var BlankPageLeft : GameObject;
 
 function Update () {
  
    if (!rotating  && Input.GetMouseButtonDown (0)) {
        var ray = Camera.main.ScreenPointToRay (Input.mousePosition);
        var hit:RaycastHit;
  
        if (Physics.Raycast (ray, hit, 20) && (hit.collider.name == "loadChapterPageCollider")) {
          rotating = true;
        }
     }
  
     if (rotating) {
        myEuler.y = Mathf.MoveTowardsAngle(myEuler.y, 180, Time.deltaTime * speed);
        ChangeIntro1();
        if (myEuler.y >= 180) {
          myEuler.y = 0;
          rotating = false;
          Debug.Log("Test");
        }
  
        transform.eulerAngles = myEuler;
     }
 }
     
 ///Hide and show Pages        
 function ChangeIntro1(){
 
         //ChapterPage.SetActive (true);
         //IntroPage.SetActive (false);
         }