$(function($)
{
    var url = '?language=' + $('#language').val();
    var exclude = $('.menu-item-3722 > a, .menu-item-3160 > a');
    $('ul.menu li a').not(exclude).each(function()
    {
        var new_url = $(this).attr('href') + url;
        $(this).attr('href', new_url);
    });
    $('#separate-billing-address').click(function(e)
    {
        e.preventDefault();
        $('div.billing_address_form').fadeToggle();
    });
    $('div.billing_address_form input[type=text]').each(function()
    {
        if ($(this).val())
        {
            $('div.billing_address_form').show();
            return;
        }
    });
});