trustieforge/app/views/comments/create.js.erb

<% if @course %>
    $("#activity_post_reply_<%= @user_activity_id%>").html("<%= escape_javascript(render :partial => 'users/course_news_post_reply', :locals => {:activity => @news,:user_activity_id =>@user_activity_id}) %>");
<% elsif @project %>
    $("#user_activity_<%= @user_activity_id%>").replaceWith("<%= escape_javascript(render :partial => 'projects/project_news', :locals => {:activity => @news,:user_activity_id =>@user_activity_id}) %>");
<% else %>
    $("#activity_post_reply_<%= @user_activity_id%>").html("<%= escape_javascript(render :partial => 'organizations/course_news_post_reply', :locals => {:activity => @news,:user_activity_id =>@user_activity_id}) %>");
<% end %>
sd_create_editor_from_data('<%= @user_activity_id%>',"","100%", "UserActivity");