fragment에서 초기에 지정해놓은 VIew가 remove되지 않아요 ㅠㅠ

Question

   public void selectFrag(View view){
        Fragment fr;
        Button btn1 , btn2;

        //버튼들
        btn1 = (Button) findViewById(R.id.button1);
        btn2 = (Button) findViewById(R.id.button2);

        if(view == findViewById(R.id.button2)){
            FragmentManager fm = getFragmentManager();
            FragmentTransaction fragmentTransaction = fm.beginTransaction();
            fragmentTransaction.replace(R.id.fragment_place, new StatusBarSecondActivity());
            fragmentTransaction.commit();
            btn1.setBackgroundResource(R.drawable.unusingpage);
            btn2.setBackgroundResource(R.drawable.usingpage);
        }else {
            FragmentManager fm = getFragmentManager();
            FragmentTransaction fragmentTransaction = fm.beginTransaction();
            fragmentTransaction.replace(R.id.fragment_place, new StatusBarFirstActivity());
            fragmentTransaction.commit();
            btn2.setBackgroundResource(R.drawable.unusingpage);
            btn1.setBackgroundResource(R.drawable.usingpage);
        }



    }

자바는 다음과 같이 구동이 되구요!!

 

 <fragment
        android:id="@+id/fragment_place"
        android:name="com.example.dklee.candybar_ver00.StatusBarFirstActivity"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        tools:layout="@layout/candybar_mainpage" />

xml에 StatusBarFirstActivity라는 Activity가 다른 칸으로 넘어가면 지워지지를 않네요 ㅠㅠ

 

어떻게 해야되는건가요 ㅠㅠㅠ