gitlabhq/app/views/notes/create.js.haml

- if @note.valid?
  :plain
    $("#new_note .errors").remove();
    $('#note_note').val("");
    NoteList.prepend(#{@note.id}, "#{escape_javascript(render :partial => "notes/show", :locals => {:note => @note})}");
- else
  :plain
    $("#new_note").replaceWith("#{escape_javascript(render('form'))}");

:plain
  $("#submit_note").removeAttr("disabled");