$(document).ready(function(){
    var filter = $('#filter');
    var submit = $('.submit', filter);
    var reset = $('.reset', filter);

    filter.ajaxForm({
            url : 'katalog-filter.php',
            method : 'get',
            success : function(){
                location.reload();
            }
        });

    /* submit */
    submit.bind('click', function(){
            $('#filter').submit();
        });

    /* reset */
    reset.bind('click', function(){
            var filter = $('#filter');
            var resetInput = $('#reset:input', filter);

            resetInput.attr('value', 1);
            filter.submit();
        });
});