[jQuery] Problems getting validate plugin to work with select box

[jQuery] Problems getting validate plugin to work with select box


I'm trying to get the validate plugin to work with a select box, but
for some reason, it wont validate if i select a country, what am i
doing wrong?
<form id="testform" method="post">
    <select name="country" id="country">
        <option value="">Select a country</option>
        <option value="AF">Afghanistan</option>
        <option value="AX">Aland Islands</option>
        <option value="AL">Albania</option>
        <option value="GB.WLS">Wales</option>
    </select>
    <input id="submitbtn" name="submitbtn" type="submit" />
</form>
<script type="text/javascript">
    $('#testform').validate({
        messages : {
            country : {
                required : 'select country',
                minlength : 'choose a country'
            },
        },
        rules : {
            country : {
                required : true,
                minlength: 2
            },
        },
        success: function(label) {
            label.html("&nbsp;").addClass("checked");
        }
    });
</script>