// $_POST after browser form submit:

Array
(
    [title] => 
    [taxonomy] => Array
        (
            [1] => Array
                (
                    [hierarchical_select] => Array
                        (
                            [selects] => Array
                                (
                                    [0] => label_0
                                )

                        )

                )

        )

    [hierarchical_select_json_parameters] => hs_test
    [changed] => 
    [body] => 
    [format] => 1
    [form_token] => ea2e95e10caec44a0d44260f9831eea1
    [form_id] => page_node_form
    [log] => 
    [menu] => Array
        (
            [title] => 
            [description] => 
            [pid] => 1
            [path] => 
            [weight] => 0
            [mid] => 0
            [type] => 86
        )

    [comment] => 0
    [name] => root
    [date] => 
    [status] => 1
    [subscriptions_notify] => 1
    [op] => Preview
)







// $_POST after jQuery Form Plugin submit:

Array
(
    [title] => 
    [hierarchical_select_json_parameters] => hs_test
    [changed] => 
    [body] => 
    [format] => 1
    [form_token] => ea2e95e10caec44a0d44260f9831eea1
    [form_id] => page_node_form
    [log] => 
    [menu] => Array
        (
            [title] => 
            [description] => 
            [pid] => 1
            [path] => 
            [weight] => 0
            [mid] => 0
            [type] => 86
        )

    [comment] => 0
    [name] => root
    [date] => 
    [status] => 1
    [subscriptions_notify] => 1
)