<?php
$maanden = array(
                        1 => "January",
                        2 => "February",
                        3 => "March",
                        4 => "April",
                        5 => "May",
			6 => "June",
						7 => "July",
						8 => "August",
						9 => "September",
						10 => "October",
						11 => "November",
						12 => "December"
                );
 
 
 
$months = range (01, 12);
echo "<span class='datachoice'>Month:</span><select name='month' id='period' class='month'>";
 
foreach ($months as $month) {
 
$selected = $month == date("m") ? 'selected="selected"' : '';
 
if(isset($_GET['month']) && $_GET['month'] == $month)  {
  // geslecteerd
echo '<option value = '. sprintf('%02d', $month) .' selected="selected" >'. $maanden[$month] .'</option>';
 } else {
  // huidige maand
  echo '<option value = '.sprintf('%02d', $month).' '.$selected.'>'. $maanden[$month] .'</option>';
		}
}
echo "</select>";
?>

<select name='month' id='period' class='month'>
<?php
$maanden = array(
    1 => "January",
    2 => "February",
    3 => "March",
    4 => "April",
    5 => "May",
    6 => "June",
    7 => "July",
    8 => "August",
    9 => "September",
    10 => "October",
    11 => "November",
    12 => "December"
);
 
 
 
$months = range (01, 12);
 
$active_month = isset($_GET['month']) ? $_GET['month'] : date("m");
 
foreach ($months as $month)
{
	$select = sprintf('%02d', $month) == $active_month ? ' selected="selected"' : '';
?>
	<option value="<?php echo sprintf('%02d', $month)?>"<?php echo $select?>><?php echo $maanden[$month]?></option>
<?php
}
?>
</select>