private void doCaptureImage() {
    	Intent i = new Intent("android.media.action.IMAGE_CAPTURE");
    	this.startActivityForResult(i,REQUEST_CAMERA) ;
    }
    
	private void doSelectImage() {
		Log.d("PingDroid","PostActivity::doSelectImage()") ;
    	Intent i = new Intent(Intent.ACTION_PICK) ;
    	i.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, 
    					 MediaStore.Images.Media.CONTENT_TYPE) ;
    	this.startActivityForResult(i,REQUEST_SELECT_PHOTO) ;
    }
  
	// fragment of onActivityResult()
    	case REQUEST_CAMERA:
    		if( resultCode != 0 ) {
	    		Bundle extras = data.getExtras() ;
	    		Bitmap bmp = (Bitmap)extras.get("data") ;
	    		if( bmp != null ) {
	    			File f = this.getFileStreamPath("ping_media.jpg") ;
	    			if( f.exists() ) f.delete() ;
					try {
						FileOutputStream out = this.openFileOutput("ping_media.jpg",MODE_PRIVATE);
		    			bmp.compress(CompressFormat.JPEG, 12, out) ;
		    			out.close() ;
		    			media_path = f.getAbsolutePath() ;
		    			Log.d("PingDroid","onActivityResult("+requestCode+","+resultCode+","+media_path+")") ;
					} catch (FileNotFoundException e) {
						Log.e("PingDroid","FileNotFoundException generated when using camera") ;
					} catch (IOException e) {
						Log.e("PingDroid","IOException generated when using camera") ;
					}
	    		}else clearImage() ;
    		}else clearImage() ;
    		break ;
    	case REQUEST_SELECT_PHOTO:
    		if( resultCode != 0 ) {
	    		Cursor c = managedQuery(data.getData(),null,null,null,null) ;
	    		if( c.moveToFirst() ) {
	    			media_path = c.getString(1) ;
	    			Log.d("PingDroid","onActivityResult("+requestCode+","+resultCode+","+media_path+")") ;
	    		}else clearImage() ;
    		}else clearImage() ;
    		break ;