jQuery.noConflict();
window.addEvent('domready', function(){
    if($('mailinglistdiv') && $('frm_mailinglist')){
        // get refs to some elements
        var container = $('mailinglistdiv');
        var frm = $('frm_mailinglist');
        var emailField = $('id_email');
        // set sending options
        frm.set('send', {
            url: frm.getProperty('action'),
            method: 'get',
            onSuccess: function(response){
                if(response != ''){
                    container.set('text', response);
                }
            }
        });
        frm.addEvent('submit', function(e){
            e.preventDefault();
            if(emailField.value != ''){
                frm.send();
            }
        });
    }
});