How to stop CharacterController during Collider's moving?

Hi all.

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I have two cubes, one attached FPSInputController.js and CharacterMotor.js, regarded as controller. The other acts as a collider.

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What I want to achieve is that after two cubes' collision, the collider moves away in several frames/seconds in a certtain distance, and the controller stops moving during the collider's moving (maybe cant receive the keyboard's message or doing nothing after receive these messages).

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Now the collider moves as my expection. But I dont know how to stop the controller immediately. I try to change CharacterController.velocity to zero while this variant is read-only. I also try to retrive the controll's transform.position every frame but it always changes uncontrolable.

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My script is as follow. I attach this script to the controller to catch collision.

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 #pragma strict
 
 function OnControllerColliderHit(hit : ControllerColliderHit)
 {
     if(hit.collider.name != "Terrain")
     {
         Precomp.controller = hit.controller;
         Precomp.cube = hit.collider;
         Precomp.flag = true;
         Precomp.dir = hit.moveDirection;
     }
 }

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And the Precomp.js is as follow. I attach this script to the Main Camera to deal with the collision.

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 #pragma strict
 
 static var controller : CharacterController;
 static var cube : Collider;
 static var flag : boolean;
 static var dir : Vector3;
 var count:byte = 0;
 
 function Update () {
     if(flag == true)
     {
         if(count<5) {
             cube.transform.position += (dir/5);
             count++;
         }
         else
         {
             count = 0;
             flag = false;
         }
     }
 }

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Now how to stop the controller during collider's moving?