Rain.define(function() {
    
    if ($('#selectCard').val() != ""){
        $('#checkoutPass').show();
    }
    
    $('#selectCard').change(function() {
        if ($(this).val() != ""){
            $('#checkoutPass').show();
        } else {
            $('#checkoutPass').hide();
        }
    }); 
    
    $('table.alternate tr:odd').addClass('odd');
});