update coffeescript to hide cohort choice if first commmentable is not cohorted

common/static/coffee/src/discussion/views/new_post_view.coffee

@@ -17,6 +17,11 @@ if Backbone?
           
           @$(".new-post-tags").tagsInput DiscussionUtil.tagsInputOptions()
           
+          if @$($(".topic_menu li a")[0]).attr('cohorted') != "True"
+            $('.choose-cohort').hide();
+          
+            
+          
       events:
           "submit .new-post-form":            "createPost"
           "click  .topic_dropdown_button":    "toggleTopicDropdown"

lms/djangoapps/django_comment_client/forum/views.py

@@ -229,9 +229,9 @@ def forum_form_discussion(request, course_id):
             'is_course_cohorted': is_course_cohorted(course_id)
         }
         # print "start rendering.."
+        
         return render_to_response('discussion/index.html', context)
 
-
 @login_required
 def single_thread(request, course_id, discussion_id, thread_id):
     course = get_course_with_access(request.user, course_id, 'load')

lms/templates/discussion/_new_post.html

@@ -47,7 +47,7 @@
                         <input type="checkbox" name="anonymous_to_peers" class="discussion-anonymous-to-peers" id="new-post-anonymous-to-peers"><label for="new-post-anonymous-to-peers">post anonymously to classmates</label>
                     %endif
                     %if is_course_cohorted:
-                    <div class="form-group-label choose-cohort" style = "display:none">
+                    <div class="form-group-label choose-cohort">
                         Make visible to:
                         <select class="group-filter-select new-post-group" name = "group_id"> 
                             <option value="">All Groups</option>