function submit_opt_in_form(url, form_values) {
    var dd = document.getElementById('opt_in_form');
	 dd.innerHTML = "<img src=/pics/indicator.gif>";
    new Ajax.Updater('opt_in_form', url, {
                                                            evalScripts:true,
                                                            method: 'post',
                                                            parameters: form_values + '&action=submit&action.x=10',
                                                            asynchronous:true
                                                        });

}
function enter_pressed(e){
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	else return false;
	return (keycode == 13);
}