possibility to add appointment from visit list

smash/web/templates/subjects/visitdetails.html

@@ -44,6 +44,14 @@
                                 </h5>
                             </div>
                             <div class="box-footer">
+                                {% if not element.2 %}
+                                    <div>
+                                        <a href="{% url 'web.views.appointment_add' element.3 %}" class="btn btn-app">
+                                            <i class="fa fa-plus"></i>
+                                            Add new appointment
+                                        </a>
+                                    </div>
+                                {% endif %}
                                 {% for field in element.0 %}
                                     {% if not field|is_checkbox %}
                                         <div class="col-md-6 form-group  {% if field.errors %}has-error{% endif %}  {% if field|is_checkbox %}multi-checkboxes{% endif %}">
@@ -63,6 +71,7 @@
                             </div>
                         </div>
 
+
                         <div class="box box-widget widget-user-2">
                             <div class="widget-user-header bg-default">
                                 <h3 class="widget-user-username">Visit's appointments</h3>