codice:
$output="<select name='period' size='1'>\n";
$output.="<option selected>- Choose One -</option>\n";
while ( $array = mysql_fetch_array($dati)) {
	$period[]=$array["period"];
}
print_r($period);
for ($i=1;$i<13;$i++){
	$month=mktime(1,1,1,$i,1,2004);
	for ($j=1;$j<5;$j++){
		$temp="- ".strtolower(date("F",$month))." ({$j}° week) -";
		if (in_array($temp,$period))
			$output.="<option>$temp - prenotato</option>\n";
		else
			$output.="<option>$temp</option>\n";
	}
}
$output.="</select>\n";
echo $output;