<!--
        function submit_filter(animal_id, page)
        {
                var animal_type_select = document.getElementById('AnimalType');

                var animal_type_id = animal_type_select.options[animal_type_select.selectedIndex].getAttribute('value');

                var price_select = document.getElementById('Price');

                var price_id = price_select.options[price_select.selectedIndex].getAttribute('value');

                var sex_select = document.getElementById('Sex');

                var sex_id = sex_select.options[sex_select.selectedIndex].getAttribute('value');

                var years_old_select = document.getElementById('YearsOld');

                var years_old_id = years_old_select.options[years_old_select.selectedIndex].getAttribute('value');

                var city_select = document.getElementById("City");

                var city_select_id = city_select.options[city_select.selectedIndex].getAttribute('value');

                if (!page)
                  page = 'list';

        location.href = 'index.php?atid=' + animal_type_id + '&pid=' + price_id +
                '&sid=' + sex_id + '&yoid=' + years_old_id + '&aid=' + animal_id +
                '&cid=' + city_select_id + '&page=' + page;
        }
//-->