}
function start_tracking(user){
localStorage.setItem('tracker_username', user);
$('#tracker_userlink').attr('href', '/us/' + user).html(user);
$('#tracker_tracking').removeClass('hidden');
}
function start_tracking(user){
localStorage.setItem('tracker_username', user);
$('#tracker_userlink').attr('href', '/us/' + user).html(user);
$('#tracker_tracking').removeClass('hidden');