@Override
  public void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  fm = getFragmentManager();

  }

 deptListView.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int postion,
long arg3) {
ft = fm.beginTransaction();//注意。一个transaction 只能commit一次，所以不要定义成全局变量
long id = adapter.getDepartments().get(postion).getId();
String name = adapter.getDepartments().get(postion).getName();
DeptDocFragment df = new DeptDocFragment();
Bundle bundle = new Bundle();
bundle.putLong("id", id);
bundle.putString("name", name);
df.setArguments(bundle);
ft.replace(R.id.guide_content, df);
ft.addToBackStack(null);
ft.commit();
}
});

@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
Bundle bundle = getArguments();
deptId = bundle.getLong("id");
deptName = bundle.getString("name");
}