Help with animated doors?

Hello everybody, I started using Unity 3D 2 months ago but only two days ago I decided to create a small game, an now i have a big problem.
I want to create several rooms and for each room there must be a door, i've tried this script:

Code (JavaScript):

1. #pragma strict
2.  
3. private var isOpen : boolean = false;
4. private var guiShow : boolean = false;
5. var Door : GameObject;
6. var rayLength = 10;
7.  
8. function Update()
9. {
10.     var hit : RaycastHit;
11.     var fwd = transform.TransformDirection (Vector3.forward);
12.     if(Physics.Raycast(transform.position, fwd, hit, rayLength))
13.     {
14.         if(hit.collider.gameObject.tag == "Door")
15.         {
16.             guiShow = true;
17.             if(Input.GetKeyDown("e") && isOpen == false)
18.             {
19.                 Door.animation.Play("DoorOpen");
20.                 isOpen = true;
21.                 guiShow = false;
22.             }
23.            
24.             else if(Input.GetKeyDown("e") && isOpen == true)
25.             {
26.                 Door.animation.Play("DoorClose");
27.                 isOpen = false;
28.                 guiShow = false;
29.             }
30.         }
31.     }
32.    
33.     else
34.     {
35.         guiShow = true;
36.     }
37. }
38.  
39. function onGUI()
40. {
41.     if(guiShow == true && isOpen == false)
42.     {
43.         GUI.Box(Rect(Screen.width / 2, Screen.height / 2, 100, 25), "Interagisci");
44.     }
45. }

and it works fine, but i need more than one door..i need a lot of doors in my game and for every door i have to create a new animation and a new version of the script, matching the animations. So the question is: there's a quickest way to put more than one animated door, without modifying the script and create new animations every time? Thanks in advance and sorry for my english but i'm italian =)