$(document).ready(function(){
    jQuery(function($){
        $("#contact-form").submit(function() {
            $("#contact-form fieldset").append('<input type="hidden" name="chk" value="' + $.cookie('chk') + '" />');
            return true;
        });
        $("#contact-form fieldset").append('<p class="submit"><label>&nbsp;</label><input type="submit" name="submit" value="Send" /></p>');
    });
});