var personal_data_ajax_running = false;

function submit_personal_data(url) {
    var form = $('personal-data-form');
    var target = $('personal-data-ajax-response');
    if (!form || !target) return;
    if (personal_data_ajax_running) return;
    personal_data_ajax_running = true;
    $('personal-data-spinner').style.visibility = 'visible';
    new Ajax.Updater(target, url, {
        method: 'post',
        evalScripts: true,
        parameters: Form.serializeElements(form.getElements(), true),
        onComplete: function(transport) {
            personal_data_ajax_running = false;
            $('personal-data-spinner').style.visibility = 'hidden';
        }
    });
}