function search_sanityze(testo) {
	testo = testo.replace(new RegExp('[?/%]','g'), '');
	return testo;
}

function reloadCaptcha() {
	var img = $('captcha');
	if (img) {
		var src = img.get('src').split("?")[0]
		var date = new Date();
		img.set('src', src + '?ts=' + date.getTime());
	}
}