Operator `&&' cannot be applied to operands of type `int' and `UnityEngine.UI.Button.ButtonClickedEvent'

  using UnityEngine;
  using UnityEngine.UI;    
  using System.Collections;

 public class Buttons : MonoBehaviour {
 public Button Przycisk;
 public Button Przycisk2;
 int MPrzycisk;
 int MPrzycisk2;
 private MapSelected mapSelected;
 public void StartButton()
 {
     
 }


 public void QuitButton()
 {
     Application.Quit ();
 }
 public void Mapa1()
 {
     mapSelected = GetComponent<MapSelected>();
     mapSelected.Scena = 1;
 }
 public void Mapa2()
 {
     mapSelected = GetComponent<MapSelected>();
     mapSelected.Scena = 2;
     
 }




 // Use this for initialization
 void Start () {
 
 }
 
 // Update is called once per frame
 void Update () {


     mapSelected = GetComponent<MapSelected>();
  if (mapSelected.WScena == 1 & Przycisk.onClick)
     {
         Application.LoadLevel(1);
     }
 if ((mapSelected.WScena == 2) & (Przycisk2.onClick))
     {
         Application.LoadLevel(2);
     }
  }