YAHOO.util.Event.onDOMReady(function() {
    YAHOO.util.Dom.get('grafs_sorting_button').style.display = 'none';

    var flydowns = [
        'grafs_vendor_filter',
        'grafs_sorting_flydown'
    ];

    var form = YAHOO.util.Dom.get('grafs_sorting_form');

    for (var i = 0; i < flydowns.length; i++) {
        YAHOO.util.Event.on(flydowns[i], 'change', function(e) {
            for (var n = 0; n < flydowns.length; n++) {
                if (flydowns[n] !== this.id) {
                    YAHOO.util.Dom.addClass(flydowns[n], 'swat-insensitive');
                }
            }

            YAHOO.util.Dom.removeClass(flydowns[n], 'swat-insensitive');

            submitFilterForm();
        });
    }
});

function submitFilterForm() {
    YAHOO.util.Dom.get('grafs_sorting_form').submit();
}