show dialog error on lu busy error

src/lubusy.js

  */
 
 angular.module('luticateUtils')
-    .directive('luBusy', ['$compile', '$http', 'luticatePromises', '$templateCache', function($compile, $http, luticatePromises, $templateCache){
+    .directive('luBusy', ['$compile', '$http', 'luticatePromises', '$templateCache', 'luticateDialogErrorHelper',
+        function($compile, $http, luticatePromises, $templateCache, luticateDialogErrorHelper){
         return {
             restrict: 'A',
             scope: {
                     return $scope.hasError;
                 };
 
+                $scope.showError = function()
+                {
+                    var errors = luticatePromises.getErrorsGroup(options.group);
+                    var error = null;
+                    if (errors != null) {
+                        error = errors.find(function (promise) {
+                            return promise.status == 2;
+                        });
+                    }
+                    if (error != null) {
+                        luticateDialogErrorHelper.errorDialog(error.value);
+                    }
+                };
+
                 function addTemplate(template, ngShow) {
 
                     $http.get(template, {cache: $templateCache}).success(function (indicatorTemplate) {
         "\n" +
         "   <div class=\"lu-busy-default-sign\">\n" +
         "\n" +
-        "      <div class=\"lu-busy-default-error-text\">Error</div>\n" +
+        "      <div class=\"lu-busy-default-error-text\"><a href=\"\" ng-click=\"showError()\">Error</a></div>\n" +
         "\n" +
         "   </div>\n" +
         "\n" +