- Проверяем

common/modules/school/assets/js/school.js

@@ -146,12 +146,10 @@ $(document).ready(function() {
         }
     });
 
-    $('#registration_form').magnificPopup({
+    $('#registration_form_button').magnificPopup({
         type: 'inline',
         preloader: false
     });
-
-    $('.kurs_bt').on('click', function() {alert('asd');});
 }); 
  
 // pre-submit callback 

common/modules/school/views/course/item-view.php

@@ -21,7 +21,7 @@
         <?php endif;?>
         <div class="kurs_foot clearfix">
             <?php if($model->type == Courses::TYPE_DV):?>
-                <a href="#registration_form" class="kurs_bt popup-form call_form_reg" data-title="<?php echo $model->title;?>" 
+                <a href="#registration_form" id="registration_form_button" class="kurs_bt popup-form call_form_reg" data-title="<?php echo $model->title;?>"
                    data-spec ="<?php echo $model->spec_proposition;?>">
                     Предварительная регистрация
                 </a>