PHP POST SORTING

<form id="p_list2" name="p_list2" method="post" action="?page_id=163" >
 <label for="miestai">Pasirinkti</label>
  <select name="fname" id="fname" onchange="p_list2.submit();">
   <option value="*">Pasirinkti miestą</option>
    <?php
    global $p_miestai_a;
    global $p_i;
        for($i = 0; $i < $p_i; $i++){
        echo '<option value="';
        echo $p_miestai_a[$i];
        echo '">';
        echo $p_miestai_a[$i];
        echo '</option>';
        }
    ?>
  </select>
</form>
<form id="p_list3" name="p_list3" method="post" action="?page_id=163" >
 <label for="sritys">Pasirinkti</label>
  <select name="fname" id="fname" onchange="p_list3.submit();">
   <option value="*">Pasirinkti sirty</option>
    <?php
$pas = 2;
$p_i_s =0;
$i_i_a = false;
$p_sritis = array();
$sritys = mysql_query("SELECT value from wp_projectmanager_datasetmeta where form_id=5;");
while($result = mysql_fetch_array ($sritys)) {
    $i_i_a = false;
    for($i = 0; $i < $p_i_s;$i++){
        if($result[0] == $p_sritis[$i]){
            $i_i_a = true;
        }
    }
    if($i_i_a == false){
        $p_sritis[$p_i_s] = $result[0];
        $p_i_s++;
    }
}
mysql_free_result($sritys);
mysql_close();
        for($i = 0; $i < $p_i_s; $i++){
        echo '<option value="';
        echo $p_sritis[$i];
        echo '">';
        echo $p_sritis[$i];
        echo '</option>';
        }
    ?>
  </select>
</form>