Problems with rotating and slerp

Hi, I'm having a problem rotating on one axis back and forth using slerp. I want to slowly move between two values with a pause at each end of the rotation. Photos:

Here is my code:

 #pragma strict
 var position1 = true;
 // old var unused now
 //var position2 = false;
 var from : Transform;
 var to : Transform;
     // speed at which to move
     var speed = 0.1;
     // pause between the movement
     var wait = 1;
     // controls the timer
     var timeron = false;
     // part of the pause function
     var go = false;
     
 function A () {
 // redunadant script but I was trying everything
 if (position1 == false) {
 // not redunant stuff below
 transform.rotation =
           Quaternion.Lerp (to.rotation, from.rotation, Time.time * speed);
           
           // once the object reaches it's destination it will stop moving
           if (transform.rotation == from.transform.rotation) {
           
           //starts pause for movement
         go = false;
         
             // tells the timer to switch to the other
             // coroutine
         position1 = true;
         
         // for debuging
         print ('cycled');
           }
 }
 }
 function B () {
 //redunant script but I was trying everything
 if (position1 == true) {
 // the not redundant part below
  transform.rotation =
           Quaternion.Lerp (from.rotation, to.rotation, Time.time * speed);
           
           // once the object reaches it's destination it will stop moving
 if (transform.rotation == to.transform.rotation) {
 
 // starts pause between movement
 go = false;
 
 // for debug
     print ('cycled2');
     
 // switches to other coroutine
 position1 = false;
 }
 }
 }
 
 
 
 function timer () {
 // this sets the timer to on 
 // this is so that the update function
 // will not be able to restart the timer
 // before it is done
 timeron = true;
 
 // this is the pause between moving set by wait
 yield WaitForSeconds (wait);
 
 // the go variable keeps the platform from moving until it is ready
 go = true;
 
 // this lets the update function restart the timer
 timeron = false;
 }
 
 
 function Update () {
 if (timeron == false) {
 // this starts the timer which controls
 // the switching between coroutines.
 StartCoroutine ('timer');
 }
 
 if (position1 == true) {
 if (go == true) {
 
         StartCoroutine ('B');
         }
           }
 if (position1 == false) {
 if (go == true) {
 
     StartCoroutine ('A');
     }
         
 }
 }
 

What happens is that it will move to the first position and pause. Then instead of moving back to the original position it will simply start moving between the two positions instantly. I need this movement to be smooth. Thanks!