Validate name="name[]" not working...

Validate name="name[]" not working...

Hi,

I'm using the Validation plugin from bassistance.de I want to validate the folowing:

<form class="cmxform" id="form1" action="ufm/mailit.php" method="post">
<fieldset>
<input type="checkbox" value="namea" name="name[]" id="namea" /> <label for="namea">Name a</label>
<input type="checkbox" value="nameb" name="name[]" id="nameb" /> <label for="nameb">Name b</label>
<input type="checkbox" value="namec" name="name[]" id="namec" /> <label for="namec">Name c</label>
<button type="submit" id="RegisterButton" name="ButtonValue" value="Aanvragen">Submit</button>
</fieldset>
</form>

And using this javascript:

$(document).ready(function() {
            $("#form1").validate({
                rules: {
                   
                    vraag2[]: {required: true, minlength: 1}
                             },
                   
                messages: {
                    vraag2[]: "Maak tenminste één keuze"
                }
            });
});

But it's not working, It has to do with the [ ] characters how can I use those characters with the validation plugin?

Thanks!
Edski