So on my main camera I have a script to zoom in, and on my GUITexture I have a script that makes it a button

Here is my Zoom.js script,

var zoom : int = 20;
var normal : int = 60;
var smooth : float = 5;
private var isZoomed = false;
function Update () {
      if (Input.GetButtonDown ("zoombutton")) {
          isZoomed = !isZoomed; 
     }

     if(isZoomed == true){
          camera.fieldOfView = Mathf.Lerp(camera.fieldOfView,zoom,Time.deltaTime*smooth);
     }
     else{
        camera.fieldOfView = Mathf.Lerp(camera.fieldOfView,normal,Time.deltaTime*smooth);
     }
}

and here is my ZoomButton.js script,

    var recoveryTime = 10;

private var delay = 0;

function Update () { if (delay>0){delay -=1;}

          if (delay == 0){            if (iPhoneInput.touchCount ==1){


          var currentTouch:iPhoneTouch = iPhoneInput.touches[0]; 

      if(currentTouch.phase ==
iPhoneTouchPhase.Began && guiTexture.HitTest(currentTouch.position)){ guiTexture.color = Color(0.2, 0.3, 0.4, 0.5);
     }
   }
          }    }

I want to make it so when I press the button it will activate the script on my main camera. I believe the issue is I don't know how to call on the button being pressed to active the zoom function

Appreciate all and any help, Thanks!