PHP CURL Javascript problems help?

Question

<script type= "text/javascript">
/*<![CDATA[*/
 $(document).ready(function(){
  $('form.upform').submit(function() {
   $(".file").animate({"height": "toggle", "opacity": "toggle"}, "slow");
   $(".loading").fadeIn("slow");
  });
 });


 var max = <?=$settings['SET_MAX_UPLOAD'];?>;
 var count = 1;
 $(document).ready(function(){
  $('.add_another_file_input').click(function(){
   var html = $('.Upload_Multiple').prev('.input').html();
   $('.file:last').after( '<div class="input file hide">'+html+'</div>' );
   $('.file:last').animate({"height": "toggle", "opacity": "toggle"}, "slow");
   count++;
   if(count >= max) $('.Upload_Multiple').animate({"height": 0, "opacity": 0}, "slow");
   if(count === 2) copyfileName();
  return false;
  });
 });


 $(document).ready(function(){
  $("#linkremote").click(function(){
   $('#local_panel').fadeOut(1);
   $('.Upload_Multiple').animate({"height": 0, "opacity": 0}, "slow");
   $('div.hide').animate({"height": "toggle", "opacity": "toggle"}, "slow").delay(800).remove(".hide");
   count = 1;
   $('#remote_panel').delay(2).fadeIn("slow");
   $('#linklocal').removeClass('linklocal show').addClass('linklocal');
   $('#linkremote').removeClass('linkremote').addClass('linkremote show');
  });
  $("#linklocal").click(function(){
   $('#remote_panel').fadeOut(1);
   if(count < max) $('.Upload_Multiple').delay(1).animate({"height": '20px', "opacity": "100"}, "slow");
   $('#local_panel').delay(2).fadeIn("slow");
   $('#linklocal').removeClass('linklocal').addClass('linklocal show');
   $('#linkremote').removeClass('linkremote show').addClass('linkremote');
  });
 });


 function  copyfileName() {
  var name;
  var file = document.upload.elements["file[]"];
  var file_name = document.upload.elements["fileName[]"];
  var alt = document.upload.elements["alt[]"];
  if (file.length > 0){
   for (i = 0; (i < file.length); i++) {
    if (file_name[i].value != file[i].value){
     file_name[i].value = file[i].value;
     name = file_name[i].value.slice(file_name[i].value.lastIndexOf("\\")+1,file_name[i].value.lastIndexOf('.'));
     alt[i].value = name.replace(/_|-/g," ");
    }
   }
  }else{
   file_name.value = file.value;
   name = file_name.value.slice(file_name.value.lastIndexOf("\\")+1,file_name.value.lastIndexOf('.'));
   alt.value = name.replace(/_|-/g," ");
  }
 }

 function fileExt() {
  var extArray = new Array("<?=implode('","',$accepted);?>");
  var file = document.upload.elements["fileName[]"];
  for (i = 0; (i < file.length); i++) {
   var extOk = false;
   if (!file[i].value) return false;
   var filename = file[i].value.slice(file[i].value.indexOf("\\") + 1);
   var ext = filename.slice(-3).toLowerCase();
   for (var i = 0; i < extArray.length; i++) {
    if (extArray[i] === ext) {
     extOk = true;
    }
   }
   if (extOk != true) {
    alert("Please only upload files that end in types:  "
    + (extArray.join("  ")) + "\nPlease select a new "
    + "file to upload and submit again.");
    return false;
   }
  }
  return true;
 }
/*]]>*/
</script>
<form enctype="multipart/form-data" action="../imagehost/upload.php" method="post" class="upform" name="upload" id="upload">
<input type="text" id="fileName" name="fileName[]"  class="text_input long" readonly="readonly" />
<input type="file" name="file[]" id="file" class="file_input_hidden" onchange="javascript: copyfileName()" />
<label for="alt" class="des">Description: (optional)</label>
<input type="text" name="alt[]" id="alt" class="text_input long_des" /></div>
<input name="submit" type="submit" value="Upload" class="button" onclick="return fileExt()" /></form>

<?
function scandirt($dir){
    $items = glob($dir . '/*.jpg');
    for ($i = 0; $i < count($items); $i++) {
        if (is_dir($items[$i])) {
            $add = glob($items[$i] . '/*');
            $items = array_merge($items, $add);} }
    return $items;}
$dir = '/var/www/skim/skimmed/';
$file = scandirt($dir);
$pictures = array();
foreach($file as $path => $pic) {
$pictures[$path] = end(explode('/',$pic));}
foreach ($pictures as $picture){
$alt = ltrim(str_replace($num, ' ', $picture));
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_VERBOSE, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible;)");
    curl_setopt($ch, CURLOPT_POST, true);
 curl_setopt($ch, CURLOPT_URL, 'http://diabolical-fs/curl/imageh.php' );
    $post_array = array(
"file[]"=>"@".$dir. $picture,
"alt[]" => $alt,
"submit"=> "Upload",
);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post_array);
    $response = curl_exec($ch);
if (curl_errno($ch)) {
echo "Erro CURL: " . curl_error($ch);
}
 echo $response;}
?>

Above is the handler which gets the filename and pulls the extension etc from it to pass to the uploader. Using this same curl I was able to post to 3 other mockups which do not use javascript onclick, onchange functions what am i missing to make this work ? Sending the data directly to the upload handler i get errors such as file not supported or not right kind of type etc. This is of course because the java is handling getting extensions etc. But when i pass it to the actual form I get no errors. no nothing it is almost as if it runs correct except it does not populate the upload at all.