diff --git a/app/views/origami/surveys/_form.html.erb b/app/views/origami/surveys/_form.html.erb
index 52e8a517..1b6d07e2 100755
--- a/app/views/origami/surveys/_form.html.erb
+++ b/app/views/origami/surveys/_form.html.erb
@@ -67,12 +67,12 @@
             <div class="row clearfix">
               <div class="col-lg-6 col-md-6 col-sm-6 col-xs-6 ">
                 <div class="form-group p-l-10 p-r-10">
-                  <%= f.input :child , input_html: { class: 'col-md-10' }%>
+                  <%= f.input :child , input_html: { class: 'col-md-10' , :onChange => "total_customer();"}%>
                 </div>
               </div>
               <div class="col-lg-6 col-md-6 col-sm-6 col-xs-6 ">
                 <div class="form-group p-l-10 p-r-10">
-                  <%= f.input :adult , input_html: { class: 'col-md-10' }%>     
+                  <%= f.input :adult , input_html: { class: 'col-md-10' , :onChange => "total_customer();"}%>     
                 </div>
               </div>
             </div>  
@@ -88,7 +88,7 @@
                 </div>
               </div>
             </div>
-            <%= f.input :total_customer, input_html: { class: 'col-md-11'} %>
+            <%= f.input :total_customer, input_html: { :readonly => true, class: 'col-md-11'} %>
             <%= f.input :local , input_html: { class: 'col-md-11' }%>
 
             <fieldset style="border: 1px solid #BDBDBD;padding: 20px; width: 92%;margin: 20px 0 20px 0;">