Improvements for delete book

cps/templates/modal_dialogs.html

@@ -47,7 +47,8 @@
       </div>
         <div class="modal-body text-center">
           <p>
-          <span>{{_('This book will be permanently erased from database')}}</span>
+          <span class="hidden" id="book_format">{{_('This book format will be permanently erased from database')}}</span>
+          <span class="hidden" id="book_complete">{{_('This book will be permanently erased from database')}}</span>
           <span>{{_('and hard disk')}}</span>
 		  </p>
           {% if config.config_kobo_sync %}
@@ -60,7 +61,6 @@
 
       <div class="modal-footer">
         <input type="button" class="btn btn-danger" value="{{_('Delete')}}" name="delete_confirm" id="delete_confirm" data-dismiss="modal">
-        <!--a href="{{ url_for('editbook.delete_book', book_id=bookid) }}" id="delete_confirm" class="btn btn-danger">{{_('Delete')}}</a-->
         <button type="button" class="btn btn-default" data-dismiss="modal">{{_('Cancel')}}</button>
       </div>
     </div>