non riesco a far funzionare swfupload in quanto la pagina si carica ma cliccando sul bottone non mi apre la finestra con i file da scegliere.

ho scaricato direttamente il sample e l'ho caricato sul mio sito

in pratica ho le seguenti cartelle:

- simpledemo che contiene index.php e upload.php piu una cartella js con dentro fileprogress.js handlers.js e swfupload.queue.js

- swfupload con i file swfupload.js e swfupload_f9.swf

l'index.php contiene il seguente codice:


Codice PHP:
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <title>SWFUpload Demos - Simple Demo</title> <link href="../css/default.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="../swfupload/swfupload.js"></script> <script type="text/javascript" src="js/swfupload.queue.js"></script> <script type="text/javascript" src="js/fileprogress.js"></script> <script type="text/javascript" src="js/handlers.js"></script> <script type="text/javascript">   var swfu;    window.onload = function() {    var settings = {     flash_url : "../swfupload/swfupload_f9.swf",     upload_url: "upload.php", // Relative to the SWF file     post_params: {"PHPSESSID" : "<?php echo session_id(); ?>"},     file_size_limit : "100 MB",     file_types : "*.*",     file_types_description : "All Files",     file_upload_limit : 100,     file_queue_limit : 0,     custom_settings : {      progressTarget : "fsUploadProgress",      cancelButtonId : "btnCancel"     },     debug: false,      // The event handler functions are defined in handlers.js     file_queued_handler : fileQueued,     file_queue_error_handler : fileQueueError,     file_dialog_complete_handler : fileDialogComplete,     upload_start_handler : uploadStart,     upload_progress_handler : uploadProgress,     upload_error_handler : uploadError,     upload_success_handler : uploadSuccess,     upload_complete_handler : uploadComplete,     queue_complete_handler : queueComplete // Queue plugin event    };     swfu = new SWFUpload(settings);       };  </script> </head> <body> <div id="header">  <h1 id="logo">[url="../../areasoci"]SWFUpload[/url]</h1>  <div id="version">v2.1.0 Beta</div> </div>  <div id="content">  <h2>Simple Demo</h2>  <form id="form1" action="index.php" method="post" enctype="multipart/form-data">   

This page demonstrates a simple usage of SWFUpload.  It uses the Queue Plugin to simplify uploading or cancelling all queued files.</p>     <fieldset class="flash" id="fsUploadProgress">    <legend>Upload Queue</legend>    </fieldset>   <div id="divStatus">0 Files Uploaded</div>    <div>     <input type="button" value="Upload file (Max 100 MB)" onclick="swfu.selectFiles()" style="font-size: 8pt;" />     <input id="btnCancel" type="button" value="Cancel All Uploads" onclick="swfu.cancelQueue();" disabled="disabled" style="font-size: 8pt;" />    </div>   </form>     </div> </body> </html>
upload.php contiene il seguente codice:
Codice PHP:
<?php / Code for Session Cookie workaround  if (isset($_POST["PHPSESSID"])) {   session_id($_POST["PHPSESSID"]);  } else if (isset($_GET["PHPSESSID"])) {   session_id($_GET["PHPSESSID"]);  }   session_start();   $POST_MAX_SIZE = ini_get('post_max_size');  $unit = strtoupper(substr($POST_MAX_SIZE, -1));  $multiplier = ($unit == 'M' ? 1048576 : ($unit == 'K' ? 1024 : ($unit == 'G' ? 1073741824 : 1)));   if ((int)$_SERVER['CONTENT_LENGTH'] > $multiplier*(int)$POST_MAX_SIZE && $POST_MAX_SIZE) {   header("HTTP/1.1 500 Internal Server Error");   echo "POST exceeded maximum allowed size.";   exit(0);  }  // Settings  $save_path = getcwd() . "/swfupload/";    // The path were we will save the file (getcwd() may not be reliable and should be tested in your environment)  $upload_name = "Filedata";  $max_file_size_in_bytes = 2147483647;    // 2GB in bytes  $extension_whitelist = array("jpg", "gif", "png"); // Allowed file extensions  $valid_chars_regex = '.A-Z0-9_ !@#$%^&()+={}\[\]\',~`-';    // Characters allowed in the file name (in a Regular Expression format)   // Other variables   $MAX_FILENAME_LENGTH = 260;  $file_name = "";  $file_extension = "";  $uploadErrors = array(         0=>"There is no error, the file uploaded with success",         1=>"The uploaded file exceeds the upload_max_filesize directive in php.ini",         2=>"The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form",         3=>"The uploaded file was only partially uploaded",         4=>"No file was uploaded",         6=>"Missing a temporary folder"  );   // Validate the upload  if (!isset($_FILES[$upload_name])) {   HandleError("No upload found in \$_FILES for " . $upload_name);   exit(0);  } else if (isset($_FILES[$upload_name]["error"]) && $_FILES[$upload_name]["error"] != 0) {   HandleError($uploadErrors[$_FILES[$upload_name]["error"]]);   exit(0);  } else if (!isset($_FILES[$upload_name]["tmp_name"]) || !@is_uploaded_file($_FILES[$upload_name]["tmp_name"])) {   HandleError("Upload failed is_uploaded_file test.");   exit(0);  } else if (!isset($_FILES[$upload_name]['name'])) {   HandleError("File has no name.");   exit(0);  }    $file_size = @filesize($_FILES[$upload_name]["tmp_name"]);  if (!$file_size || $file_size > $max_file_size_in_bytes) {   HandleError("File exceeds the maximum allowed size");   exit(0);  }    if ($file_size <= 0) {   HandleError("File size outside allowed lower bound");   exit(0);  }    $file_name = preg_replace('/[^'.$valid_chars_regex.']|\.+$/i', "", basename($_FILES[$upload_name]['name']));  if (strlen($file_name) == 0 || strlen($file_name) > $MAX_FILENAME_LENGTH) {   HandleError("Invalid file name");   exit(0);  }    if (file_exists($save_path . $file_name)) {   HandleError("File with this name already exists");   exit(0);  }   $path_info = pathinfo($_FILES[$upload_name]['name']);  $file_extension = $path_info["extension"];  $is_valid_extension = false;  foreach ($extension_whitelist as $extension) {   if (strcasecmp($file_extension, $extension) == 0) {    $is_valid_extension = true;    break;   }  }  if (!$is_valid_extension) {   HandleError("Invalid file extension");   exit(0);  }   if (!@move_uploaded_file($_FILES[$upload_name]["tmp_name"], $save_path.$file_name)) {   HandleError("File could not be saved.");   exit(0);  }   echo "File Received";  exit(0);  function HandleError($message) {  header("HTTP/1.1 500 Internal Server Error");  echo $message; } ?>
dove sbaglio?