Unity Android Custom button touch screen going to one level instead of the level picked

My question is for Unity Android pro: How do I make a custom button from a plain or a GUI texture? Every time I tap the screen on say level 3 it goes to level one as if all plains or GUI textures are the same knowing my code for each one has a Application.LoadLevel(#); what am I doing or how do I fix this so I can pick one of the 5 levels without it going to just one level tapping the screen on any level.

This is my code:

function Update(){ if(Input.touchCount>0&&Input.GetTouch(0).phase==TouchPhase.Began) { focusObj=null; var ray=Camera.main.ScreenPointToRay(Input.GetTouch(0).position); var hit : RaycastHit;

     if(Physics.Raycast(ray,hit,100)) {
         Application.LoadLevel(#);
     }
 }

}