tracks/app/views/notes/destroy.js.erb

TracksPages.page_inform("<%=  t('notes.deleted_note', :id => @note.id)%>");
<%
if @source_view == 'note' %>
    redirect_to("<%= project_path(@note.project) -%>")
<% else %>
    remove_deleted_note(<%=@note.id%>);
    TracksPages.set_page_badge(<%=@down_count%>);
<%
end
%>

function remove_deleted_note(id) {
  TracksPages.slide_up_and_remove('div#note-'+id+'-wrapper');
}