How to write a program on Javascript

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Question description

I have two codes below to test what I am trying to do. Every thing in the code is working except I can not get it to fill the input field at the bottom of the first script. After two day of tinkering I cant figure out way. When I run the code and look at the results in Developer tools and it show the data being created but it will not place it in the input field . I have a demo set up if you need to look at it. I am still learning jquery and it is driving me crazy



    <script type="text/javascript" src="js/jquery-1.11.0.min.js"></script>

    <script type="text/javascript" src="js/jquery-ui-1.10.4.custom.min.js"></script>

   <script type="text/javascript">


    $(document).ready(function () {

    $("#customer").change(function () {

        var cid = $("#customer").val();


            type: "POST",

            url: "contact.php",

            data: "cid=" + cid,

            success: function (data) {

                var options = [];

                //$.each(data[cid - 1], function () {

                $.each(data, function () {

                    options.push('<option value="' + + '">' + + '</option>');











    <select name="customer" id="customer">

      <option>-Select a Customer-</option>




    $id = $_SESSION['profile']['id']; 

   foreach($db->query("SELECT * FROM customers WHERE pid = '$id'") as $row) {

        echo "<option value=" . $row['id'] . ">" . $row['name'] . "</option>";





<input type="text" value="" id="contact"/>





$cid = $_POST["cid"];

foreach($db->query("SELECT contact FROM customers WHERE id = '$cid'") as $row) {


 echo $row['contact'];


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