convert forms to ajax forms

jquery-ajaxforms.js

$('body').on('submit', 'form.ajax', function () {
    var form = $(this);

    $.ajax({
        type: form.attr('method') || 'GET',
        url: form.attr('action') || location.href,
        data: form.serialize(),
        success: function (data, textStatus, jqXHR) {
            form.trigger('success', [data, textStatus, jqXHR]);
        },
        error: function (jqXHR, textStatus, errorThrown) {
            form.trigger('error', [jqXHR, textStatus, errorThrown]);
        },
        complete: function (jqXHR, textStatus) {
            form.trigger('complete', [jqXHR, textStatus]);
        }
    });

    return false;
});