Need help with If/else statement.

Hey there.

I am trying to make a script which plays the appropriate animation depending on a buttons state. If its on ,it switches off ,and is its off ,it plays the animation backwards. Now ,i have a problem where in an IF / ELSE statement (which i am new to) wont work as i intend it to. The function "Switch" gets called with a raycast ,and it works ,the on animation plays, but once i click it agan ,the same animation plays from frame 1. Here is the code:

 #pragma strict
 
 var state : int;
 
 function Start(){
 var state = 0;
 }
 
 function Switch () {
 if (state == 0){
     Debug.Log("On");
     animation.CrossFade("push");
     var state = 1;
     Debug.Log(state);
     }
 else {
     Debug.Log("Off");
     }
 
 }

So ,the animation plays, and the Debug.Log returns 1 ,so the change occured. Why on Earth wont it work? Its probably some obvious rookie mistake ,but i cant figure it out, so any help would be greatly appriciated.

Thanks.