function ow(url) {
    window.open(url,"","width=390,height=350,toolbar=no,menubar=no,scrollbars=yes,status=yes,location=no");
}
function owi(url) {
    window.open('/fotos_window.php?foto='+ url,'',"width=550,height=550,toolbar=no,menubar=no,scrollbars=yes,status=yes,location=no");
}