diff --git a/src/assets/yii2-dynamic-form.js b/src/assets/yii2-dynamic-form.js
index fbe3045..9b44799 100644
--- a/src/assets/yii2-dynamic-form.js
+++ b/src/assets/yii2-dynamic-form.js
@@ -81,7 +81,7 @@
             } else if($(this).is('select')) {
                 $(this).find('option:selected').removeAttr("selected");
             } else {
-                $(this).val(''); 
+                $(this).val('');
             }
         });
 
@@ -199,7 +199,7 @@
                 matches[2] = matches[2].substring(1, matches[2].length - 1);
                 var identifiers = matches[2].split('-');
                 identifiers[0] = index;
-                
+
                 if (identifiers.length > 1) {
                     var widgetsOptions = [];
                     $elem.parents('div[data-dynamicform]').each(function(i){
@@ -225,7 +225,7 @@
                 $(this).removeClass('field-' + id).addClass('field-' + newID);
             });
             // update "for" attribute
-            $elem.closest(widgetOptions.widgetItem).find("label[for='" + id + "']").attr('for',newID); 
+            $elem.closest(widgetOptions.widgetItem).find("label[for='" + id + "']").attr('for',newID);
         }
 
         return newID;
@@ -455,12 +455,14 @@
                     _restoreKrajeeDepdrop($(this));
                 }
 
-                $.when($('#' + id).select2(configSelect2)).done(initSelect2Loading(id, '.select2-container--krajee'));
+                var s2LoadingFunc = typeof initSelect2Loading != 'undefined' ? initSelect2Loading : initS2Loading;
+                var s2OpenFunc = typeof initSelect2DropStyle != 'undefined' ? initSelect2Loading : initS2Loading;
+                $.when($('#' + id).select2(configSelect2)).done(s2LoadingFunc(id, '.select2-container--krajee'));
 
                 var kvClose = 'kv_close_' + id.replace(/\-/g, '_');
 
                 $('#' + id).on('select2:opening', function(ev) {
-                    initSelect2DropStyle(id, kvClose, ev);
+                    s2OpenFunc(id, kvClose, ev);
                 });
 
                 $('#' + id).on('select2:unselect', function() {