diff --git a/project/docs/views/base_views.py b/project/docs/views/base_views.py
index 02f38b2..6d8bcff 100644
--- a/project/docs/views/base_views.py
+++ b/project/docs/views/base_views.py
@@ -421,6 +421,7 @@ class BaseViews(object):
             imgs = glob.glob(os.path.join(tmp_dir, '*.png'))
             imgs = [os.path.split(i)[1] for i in imgs]
             imgs = ['%stmp/%s/%s' % (MEDIA_URL, tmp_dirname, i) for i in imgs]
+            email_form = self.EMAIL_FORM_CLASS()
 
             dictionary = {
                     'obj': obj,
@@ -429,6 +430,8 @@ class BaseViews(object):
                     'padeji_mnoj': self.PADEJI_MNOJ,
                     'url_prefix': self.URL_PREFIX,
                     'template_create_docs': self.TEMPLATE_CREATE_DOCS,
+                    'email_form': email_form,
+                    'maybe_sign': self.MAYBE_SIGNED,
                     }
             return render(self.request, self.TEMPLATE_IMG, dictionary)
         except:
diff --git a/project/static/js/docs/list.email.js b/project/static/js/docs/list.email.js
index 9e5312c..9e027a0 100644
--- a/project/static/js/docs/list.email.js
+++ b/project/static/js/docs/list.email.js
@@ -6,6 +6,14 @@ $(document).ready(function() {
         autoOpen: false,
         minWidth: 380
     });
+    $('[name="doc_format"]').on('change', function(){
+        if ($(this).val() == 'xls') { 
+            $('#id_insert_sign').attr('checked', false);
+            $('#id_insert_sign').prop('disabled', true);
+        } else { 
+            $('#id_insert_sign').prop('disabled', false);
+        }
+    })
 
     $('button[name=close-form]', email_form).click(function() {
         email_form.dialog('close');
@@ -18,6 +26,8 @@ $(document).ready(function() {
 function setup_doc_email_links(form) {
     $('.doc-panel a.doc.email-link').each(function() {
         $(this).click(function() {
+
+            $('#id_insert_sign').prop('disabled', false);
             var link = $(this);
 
             var form_action = link.attr('href') + 'ajax/'; // url to post form
diff --git a/project/templates/docs/_base/preview.html b/project/templates/docs/_base/preview.html
index b2958ff..299895e 100644
--- a/project/templates/docs/_base/preview.html
+++ b/project/templates/docs/_base/preview.html
@@ -35,8 +35,14 @@
 {% endblock %}
 
 {% block dialogs %}
+    {% include "docs/email/base_email_form.html" with form=email_form is_ajax="True" %}
 {% endblock %}
 
 {% block js %}
+    <script type="text/javascript">
+        var CLIENT = new Object;
+        CLIENT.get_url_pattern = "{% url 'customer_clients_get_ajax' 0 %}";
+    </script>
     <script src="{{ STATIC_URL }}js/docs/del_doc.js"></script>
+    <script src="{{ STATIC_URL }}js/docs/list.email.js"></script>
 {% endblock %}