Getting/rotating photos in PhoneGap

mobile_photo.js

  function getPhoto(mealId, sourceType, saveOnSuccess) {
    var $mealDiv = $('#log-meal-' + mealId);
    var $mealImg = $mealDiv.find('.log-meal-photo-button img');
    var $quickpicStatus = $('#mobile-quickpic-link span');

    function resetQuickPicStatus() {
      $quickpicStatus.html('').addClass('icon-camera');
    }


    function getDataUri(imageUri, onSuccess, onFail) {
      var $img = $('<img/>');
      $img.attr('src', imageUri);
      $img.css({position: 'absolute', left: '0px', top: '-999999em', maxWidth: 'none', width: 'auto', height: 'auto'});
      $img.bind('load', function() {
        var canvas = document.createElement("canvas");
        var canvasContext = canvas.getContext('2d');
        var imageWidth = $img.width();
        var imageHeight = $img.height();

        var degree = 0;
        var canvasWidth = imageWidth;
        var canvasHeight = imageHeight;
        var canvasX = 0;
        var canvasY = 0;

        var orientation = ED.util.getUrlParam('orientation', imageUri);
        ED.util.log(orientation);
        if (orientation == 6) degree = 90;
        if (orientation == 3) degree = 180;
        if (orientation == 8) degree = 270;

        //   Calculate new canvas size and x/y coorditates for image
        switch(degree){
          case 90:
            canvasWidth = imageHeight;
            canvasHeight = imageWidth;
            canvasY = imageHeight * (-1);
            break;
           case 180:
            canvasX = imageWidth * (-1);
            canvasY = imageHeight * (-1);
            break;
           case 270:
            canvasWidth = imageHeight;
            canvasHeight = imageWidth;
            canvasX = imageWidth * (-1);
            break;
        }
        canvas.setAttribute('width', canvasWidth);
        canvas.setAttribute('height', canvasHeight);

        if (degree > 0) {
          ED.util.log('Rotating picture ' + degree + ' degrees');
          canvasContext.rotate(degree * Math.PI / 180);
        }

        canvasContext.drawImage($img[0], canvasX, canvasY);

        var dataUrl = canvas.toDataURL('image/png');
        if (dataUrl.indexOf('data:image/png') == -1) {
          onFail('Got back an invalid data URL');
        } else {
          onSuccess(dataUrl.replace('data:image/png;base64,', ''));
        }
      });
      $img.bind('error', function() {
        onFail('Couldnt convert photo to data URI');
      });
      $('body').append($img);
    }
    
    function onPhotoDataSuccess(imageUri) {
      FETCHING_PHOTO = false;
      resetQuickPicStatus();

      try {
        ED.util.log('Image data URI: ' + imageUri.substr(0, 50));
        $('input[name="meal-' + mealId + '_photo_data"]').val(imageUri).trigger('change');
        if (saveOnSuccess) {
          ED.util.triggerClick($('#mobile-log-meals-form .save-button'));
        }
        $mealImg.attr('src', 'data:image/png;base64,' + imageUri);
      } catch(e) {
        logError(e);
      }
    }

    function onPhotoSuccess(imageUri) {
      ED.util.log('Got image URI from PG callback: ' + imageUri);
      if (imageUri.indexOf('://') > -1) {
        ED.util.log('Converting to data URI');
        if (imageUri.indexOf('?') > -1) {
          imageUri += '&';
        } else {
          imageUri += '?';
        }
        imageUri += 'rand=' + (new Date()).getTime();

        ED.util.log('Generated cache-busting URI: ' + imageUri);
        getDataUri(imageUri, onPhotoDataSuccess, onPhotoFail);
      } else {
        onPhotoDataSuccess(imageUri);
      }
    }
    
    function onPhotoFail(message) {
      FETCHING_PHOTO = false;
      resetQuickPicStatus();

      ED.util.log('Photo failed: ' + message);
      $mealImg.attr('src', 'img/camerabutton.png');
    }

    $quickpicStatus.html('<img src="img/loading_trans_16x16.gif">').removeClass('icon-camera');
    $mealImg.attr('src', 'img/loading_big.gif').show();
    ED.util.hideModals();

    FETCHING_PHOTO = true;

    var targetWidth  = 600;
    var targetHeight = 600;
    var imageQuality = (ED.util.isAndroid() ? 50 : 70);
    var destinationType = navigator.camera.DestinationType.FILE_URI;
    // Check if this is a stupid Android that doesnt support canvas.toDataURL properly
    if (!ED.util.supportsDataURL()) {
      ED.util.log('Using DATA_URL instead due to lack of support for canvas.toDataURL');
      destinationType   = navigator.camera.DestinationType.DATA_URL;
      targetWidth  = 400;
      targetHeight = 400;
    }

    navigator.camera.getPicture(onPhotoSuccess, onPhotoFail,
      {quality: imageQuality,
       sourceType: sourceType, destinationType: destinationType,
       targetWidth: targetWidth, targetHeight: targetHeight});
  }

Sorry, but.. what is the "ED" object? I can't find any reference to instantiate that