File not being included

[fife]

Ok im sorry if this is not AJAX as im not too sure if it is.

 

Basically Im trying to make duel select lists.  this is different code from my previous post as no one answered so i had to find a different solution.  So here it goes

 

I have a query that poplulates the first drop down list.

 

//header
function createoptions($table , $id , $field)
{
    $sql = "select * FROM $table ORDER BY $field";
    $res = mysql_query($sql) or die(mysql_error());
    while ($a = mysql_fetch_assoc($res))
    echo "<option value=\"{$a[$id]}\">$a[$field]</option>";
}

//body in a form
<select name="networks"  id="networks">
           <?php  createoptions("networks", "idnetworks", "netname");   ?> 
      </select>

 

next I have another field

<select name="folder" id="folder">
     
    </select>

 

Now in a different page called select.php I have this query

 

<?php
include('../Connections/db.php'); 
session_start();


function createoptions($table , $id , $field , $condition_field , $value)
{
    $sql = sprintf("select * from $table WHERE $condition_field=%s AND type='1' ORDER BY $field" , $value);
    $res = mysql_query($sql) or die(mysql_error());
    if (mysql_num_rows($res) > 0) {
        while ($a = mysql_fetch_assoc($res))
        $out[] = "{optionValue: {$a[$id]}, optionDisplay: '$a[$field]'}";
        return "[" . implode("," , $out) . "]";
    } else

        return "[{optionValue: -1 , optionDisplay: 'No result'}]";
}

if (isset($_GET['networks'])) {
    echo createoptions("documents" , "iddocs" , "documentname" , "parentid" , $_GET['networks']);
}


die();
?>

 

Now back on the page with the form I call this query through the following code in the header

 

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript" charset="utf-8">
            $(function(){
              $("select#networks").change(function(){
                $.getJSON("select.php",{networks: $(this).val(), ajax: 'true'}, function(j){
                  var options = '';
                  for (var i = 0; i < j.length; i++) {
                    options += '<option value="' + j[i].optionValue + '">' + j[i].optionDisplay + '</option>';
                  }
                  $("select#folder").html(options);
                })
              })
            })
            </script>

 

Now the second list is show as completely blank.  Im not too sure how to trouble shoot this issue or even where to start.  Can some please help