private void verifyExtras(Bundle extras, String[] mArray) {
        try {
            String extra = extras.getString("item");
            if(extra != null) {
                if(!extra.equals(mArray[0])) {
                    if(mFilter.equals(mArray[mArray.length-1])) {
                        getActivity().getSupportFragmentManager().beginTransaction()
                                .replace(R.id.fragment_placeholder, new AboutFragment(), "B")
                                .commit();
                    } else {
                        mFilter = extra;
                    }
                }
            } else if(mFilter.equals(mArray[0])) {
                mFilter = null;
            }
        } catch (Exception e) {
            mFilter = null;
        }
    }