Simple jQuery script to show / hide Django's change list filters.

show_hide_django_filters.js

<script type="text/javascript">
    jQuery(document).ready(function($){
        $('<div id="show-filters" style="float: right;"><a href="#">Show Filters</a></p>').prependTo('div.actions');
        $('#show-filters').hide();
        $('#changelist-filter h2').html('<a style="color: white;" id="hide-filters" href="#">Filter &rarr;</a>');

        $('#show-filters').click(function() {
            $('#changelist-filter').show('fast');
            $('#changelist').addClass('filtered');
            $('#show-filters').hide();
        });

        $('#hide-filters').click( function() {
            $('#changelist-filter').hide('fast');
            $('#show-filters').show();
            $('#changelist').removeClass('filtered');
        });
    });
</script>