$('#tracker_stop').on('click', stop_tracking);
$('#track_user').on('click', function() { stop_tracking(); start_tracking($(this).data('user')) });
$('#submitform').on('submit', function() { localStorage.removeItem('tracker_lastfetch') });
$('#tracker_stop').on('click', stop_tracking);
$('#track_user').on('click', function() { stop_tracking(); start_tracking($(this).data('user')) });
$('#submitform').on('submit', function() { localStorage.removeItem('tracker_lastfetch') });