function is_e_mail(the_mail) {
	if (the_mail=='') return 0;
	var i = the_mail.indexOf("@");
	if (i<1) return 0;
	var end = the_mail.substring(i+1,the_mail.length);
	if (end.length < 4) return 0;
	if (end.indexOf(".")==-1) return 0;
	return 1;
} 
	
function check_mail_list() {
	if (!is_e_mail(document.mailinglist_form.detail_97.value)) {
		alert('Netfangið er ógilt!');
		return false;
	}
}

function change_select(the_id) {
	for (i=0; i < document.ticket_search.event_date_drop_id.options.length; i++) {
		if (document.ticket_search.event_date_drop_id.options[i].value == the_id)
			document.ticket_search.event_date_drop_id.options[i].selected = true;
	}
}

function change_radio(the_id) {
	for (i=0; i < document.ticket_search.event_date_id.length; i++) {
		if (document.ticket_search.event_date_id[i].value == the_id)
			document.ticket_search.event_date_id[i].checked = true;
	}
}

function confirm(order) {
	document.confirm_form.order.value = order;
	document.confirm_form.submit();
}