How to Restart/Re-activate camera to its position?

I have camera1 and camera2 with two different rotating behaviors respectively in one scene. When the scene runs, camera1 is activated and start rotating and camera2 remains dead. When I activate the camera2, it starts doing its job, camera1 is deactivate but it remains to its latest position. It will continue its rotation from latest position when I re-activate it.

How to restart the camera1 to its initial position when I re-activate it again?

Codes below:

Code (csharp):

1. var camera1 : Camera; //set to camera type1
2. var camera2 : Camera; //set to camera type2
3.  
4. function Start () {
5.     camera1.gameObject.active = true;
6.     camera2.gameObject.active = false;
7. }
8.  
9. function Update () {
10.    if (Input.GetKeyDown ("2")){
11.         camera1.gameObject.active = false;
12.         camera2.gameObject.active = true;
13.    }
14.    if (Input.GetKeyDown ("1")){
15.         camera1.gameObject.active = true;
16.         camera2.gameObject.active = false;
17.    }    
18. }

 

Can you post the script you are using to rotate the cameras?