puzzle with rotating statues

Hello everyone , I'm working on a Unity game and I'm seeking help , i've begun a game with Unity3D which you can try here http://ns14.freeheberg.com/~anykey2/Test1/WebPlayer/WebPlayer.html

I'd like to include some puzzles , I've begun with a puzzle that seems easy to do , but it's actually very hard for me (I'm a weak programmer) I'd like to put some kind of statues that you must rotate with buttons on the ground until they are all at y=0 (they face the camera all in the same direction) so it opens a gate. Here is what my script looks like , but it really doesn't work a little precision , i'd like to use Rotate , not rotation to have slow and realistic rotations.

 var Statue : GameObject;
 var Porte : GameObject;
 var RotationLimit =0;
 static var StatuePoint = 0;
 function Update () {
 if (Statue.transform.rotation.y > 360){
 Statue.transform.rotation.y = 0;
 }
 if (RotationLimit == 4){
 RotationLimit = 0;
 }
 if (Statue.transform.rotation.y == 90){
 RotationLimit = 1;
 }
 if (Statue.transform.rotation.y == 180){
 RotationLimit = 2;
 }
 if (Statue.transform.rotation.y == 270){
 RotationLimit = 3;
 }
 if (Statue.transform.rotation.y == 0){
 RotationLimit = 0;
 }
 if (RotationLimit == 0){
 ++ StatuePoint;
 }
 print(RotationLimit);
 }
 
 function OnTriggerStay (other : Collider) {
 if (other.gameObject.tag == "Boite" && RotationLimit == 0 && Statue.transform.rotation.y <= 90 && Statue.transform.rotation.y >= 0){
 Statue.transform.Rotate(0,5,0);
 }
 if (other.gameObject.tag == "Boite" && RotationLimit == 1 && Statue.transform.rotation.y <= 180 && Statue.transform.rotation.y >= 90){
 Statue.transform.Rotate(0,5,0);
 }
 if (other.gameObject.tag == "Boite" && RotationLimit == 2 && Statue.transform.rotation.y <= 270 && Statue.transform.rotation.y >= 180){
 Statue.transform.Rotate(0,5,0);
 }
 if (other.gameObject.tag == "Boite" && RotationLimit == 3 && Statue.transform.rotation.y <= 360.1 && Statue.transform.rotation.y >= 270){
 Statue.transform.Rotate(0,5,0);
 }
 }
 function OnTriggerExit (other : Collider) {
 RotationLimit = RotationLimit +1 ;
 }