function changeProductsPerPage()
{
    var $productsPerPage = $('#productsPerPageSelect').val();
    $.get('/ppp/' + $productsPerPage, function(data) {
          document.location.href = document.location;
    });
}

function changeProductSort()
{
    var $productSort = $('#productSortSelect').val();
    $.get('/ps/' + $productSort, function(data) {
        document.location.href = document.location;
  });
}