/*
		FragmentManager fragmentManager = getFragmentManager();
		FragmentTransaction fragmentTransaction = 
				fragmentManager.beginTransaction();      

		//---get the current display info---
		WindowManager wm = getWindowManager(); 
		Display d = wm.getDefaultDisplay();
		if ((d.getRotation()==1)||(d.getRotation()==3))
		{
			//---landscape mode---
			Fragment1 fragment1 = new Fragment1();            
			// android.R.id.content refers to the content 
			// view of the activity        
			fragmentTransaction.replace(
					android.R.id.content, fragment1);
		}
		else
		{
			//---portrait mode---
			Fragment2 fragment2 = new Fragment2();
			fragmentTransaction.replace(
					android.R.id.content, fragment2);
		}        
        //---add to the back stack---
        fragmentTransaction.addToBackStack(null);
		fragmentTransaction.commit();
		*/