How to parse errors with Zend 1, json, jQ...

parse_errors_json_zend1.js

/* php controller */
//$error = array('error' => $form->getMessages());
//$this->_helper->json( json_encode($error) );
/**/


//post get json objects...
    function post_confirmation() {
        please_wait_ui();
        $.post("/load/confirm",
                {
                    confirm: "done"
                }
        ).done(function(data) {
            try {
                data = $.parseJSON(data);
                console.log(data);
            } catch (e) {
                console.log(data);
            }
            if ( data.errors ){
              set_errors(data.errors);
            }
        })
    });


//form submit
$(document).ready(function() {
    $("#form").submit(function(e) {
        //prevent submit form
        e.preventDefault();
        //......
    });


//set errors forms
function set_errors(errors) {
    $('.errors').remove();
    $.each(errors, function(i, item) {
        set_error(i, item);
    });
}
function set_error(i, item) {
    console.log(i + " - " + item);

    var ul_errors = $('<ul class="errors" ></ul>');

    $.each(item, function(i2, item2) {
        ul_errors.append('<li>' + item2 + '</li>');
    });

    console.log(ul_errors);

    $("#" + i).after(ul_errors);
}