Best way to make Twitter Bootstrap tabs persistent

This code selects the right tab depending on the #hash and adds the right #hash when a tab is clicked. (this uses jQuery)

In CoffeeScript:

$(document).ready ->
    if location.hash != ''
         $('a[href="'+location.hash+'"]').tab('show')

    $('a[data-toggle="tab"]').on 'shown', (e) ->
        location.hash = $(e.target).attr('href').substr(1)

Or in JavaScript:

$(document).ready(function() {
    if (location.hash !== '') $('a[href="' + location.hash + '"]').tab('show');
    return $('a[data-toggle="tab"]').on('shown', function(e) {
      return location.hash = $(e.target).attr('href').substr(1);
    });
});