options for busy

src/lubusy.js

     .directive('luBusy', ['$compile', '$http', 'luticatePromises', '$templateCache', function($compile, $http, luticatePromises, $templateCache){
         return {
             restrict: 'A',
-            scope: {},
+            scope: {
+                luBusy: '&'
+            },
             link: function($scope, element, attrs) {
 
                 var position = element.css('position');
                 $scope.isLoading = false;
                 $scope.hasError = false;
 
+                var options = {
+                    group: attrs.luBusy,
+                    templateLoader: "luticate-loader.html",
+                    templateError: "luticate-error.html"
+                };
+
+                var o = $scope.luBusy();
+                if (o != null) {
+                    angular.extend(options, o);
+                }
+
+                console.log(options);
+
                 $scope.update = function()
                 {
-                    var group = attrs.luBusy;
-                    var loaders = luticatePromises.getLoadersGroup(group);
+                    var loaders = luticatePromises.getLoadersGroup(options.group);
                     $scope.isLoading = false;
                     if (loaders != null) {
                         $scope.isLoading = loaders.some(function (promise) {
                             return promise.status == 0;
                         });
                     }
-                    var errors = luticatePromises.getErrorsGroup(group);
+                    var errors = luticatePromises.getErrorsGroup(options.group);
                     $scope.hasError = false;
                     if (errors != null) {
                         $scope.hasError = errors.some(function (promise) {
                         throw new Error('Template specified for luBusy (' + template + ') could not be loaded. ' + data);
                     });
                 }
-                addTemplate('luticate-busy.html', 'loaderSplashIsActive()');
-                addTemplate('luticate-error.html', 'errorSplashIsActive()');
+                addTemplate(options.templateLoader, 'loaderSplashIsActive()');
+                addTemplate(options.templateError, 'errorSplashIsActive()');
             }
         };
     }
 angular.module('luticateUtils').run(['$templateCache', function($templateCache) {
     'use strict';
 
-    $templateCache.put('luticate-busy.html',
+    $templateCache.put('luticate-loader.html',
         "<div class=\"lu-busy-default-wrapper\" style=\"position: absolute; top: 0px; left: 0px; right: 0px; bottom: 0px;\">\n" +
         "\n" +
         "   <div class=\"lu-busy-default-sign\">\n" +