createNewWall: function(wall, successCallback, errorCallback) {
    return $http.post($rootScope.baseAppsAPI + '/walls', null, {
       params: wall
    }).success(function(data, status) {
       return successCallback.call(this, data);
    }).error(function(data) {
       return errorCallback.call(this, data);
    });
}

if (window.isSuccess(status)) {
   return successCallback.call(this, data);
} else {
  return errorCallback.call(this, data);
}