diff --git a/app/controllers/seminars_controller.rb b/app/controllers/seminars_controller.rb
index d5cf858..dca2136 100644
--- a/app/controllers/seminars_controller.rb
+++ b/app/controllers/seminars_controller.rb
@@ -77,8 +77,10 @@ class SeminarsController < ApplicationController
     seminar_template_setting = seminar.seminar_template_setting
     @seminar_template_setting = seminar_template_setting
     home_page = Page.where(:parent_page_id=>seminar.id).first
+    OrbitHelper.set_page(home_page) rescue nil
     prefix_url = OrbitHelper.request.path.split("-").first + "-#{params[:uid]}"
     @prefix_url = prefix_url
+    @registration_postfix = "/home/registration"
     header_data = "<a href=\"#{prefix_url}#{home_page.url}\">Home</a> | " + 
                   "<a href=\"/\">Main Site</a>"
     content_style = seminar_template_setting.content_style
@@ -169,7 +171,7 @@ class SeminarsController < ApplicationController
       params = OrbitHelper.params
       seminar = SeminarMain.find_by(uid: params[:uid])
       if !seminar.registration_status.blank? && seminar.signup_start_date <= time_now && ( seminar.signup_end_date.nil? ||  seminar.signup_end_date+1 >= time_now )
-        sign_up = ('<a href="'+ prefix_url + '/home/registration" target="_blank">' + t('seminar.signup') + '</a>').html_safe
+        sign_up = ('<a href="'+ prefix_url + @registration_postfix + '" target="_blank">' + t('seminar.signup') + '</a>').html_safe
       elsif seminar.registration_status.blank?
         sign_up = t('seminar.sign_up_not_open')
       elsif seminar.signup_start_date > time_now
@@ -305,7 +307,7 @@ class SeminarsController < ApplicationController
     seminar = SeminarMain.find_by(uid: params[:uid])
 
     if !seminar.registration_status.blank? && seminar.signup_start_date <= time_now && ( seminar.signup_end_date.nil? ||  seminar.signup_end_date+1 >= time_now )
-      sign_up = ('<a href="'+ OrbitHelper.url_to_show(seminar.to_param) + '" target="_blank">' + t('seminar.signup') + '</a>').html_safe
+      sign_up = ('<a href="'+ OrbitHelper.url_to_show(seminar.to_param) + @registration_postfix.to_s + '" target="_blank">' + t('seminar.signup') + '</a>').html_safe
     elsif seminar.registration_status.blank?
       sign_up = t('seminar.sign_up_not_open')
     elsif seminar.signup_start_date > time_now