Witam. Wysyłam POST na server i wywala mnie przy błędzie.

Oto błąd :

[JAVASCRIPT] pobierz, plaintext 
  1. Error thrown at line 11, column 8 in ajaxTest() in http://*******/~metis/php.php:
  2.      client.onreadystatechange = function()
  3.  called from line 1, column 0 in <anonymous function>(event):
  4.      ajaxTest()
[JAVASCRIPT] pobierz, plaintext



To moj kod :
[PHP] pobierz, plaintext 
  1. $login_ip   = "ip servera";
  2. $login_port = "port";
  3. $folder_id = "folder na serverze";
  4. $sessia = "numer sessi";
  5.   $filename = "\home\metis\pobrane\plik_do_testu.txt";
  6.   $filename_len = strlen($filename);
  7.  
  8.   $post = folder_id=".$folder_id."&session_nr=".$sessia."& HTTP/1.1 Connection: close User-Agent: ***** Host: ***** Content-Length: ".$filename_len." ".$filename;
[PHP] pobierz, plaintext 

[JAVASCRIPT] pobierz, plaintext 
  1.  <script type="text/javascript">
  2.      function ajaxTest()
  3.      {
  4.          var client = new XMLHttpRequest();
  5.          client.open('POST', "<?php echo $login_ip.":".$login_port."/upload/" ?>", true);
  6.          client.setRequestHeader('Content-Type',
  7.                     'application/x-www-form-urlencoded; charset=UTF-8');
  8.  
  9.          client.send("<?php echo $post ?>");
  10.          client.onreadystatechange = function()
  11.          {
  12.              if (200 === this.status && 4 === this.readyState)
  13.              {
  14.                  alert('status: ' + this.statusText + '\n' +
  15.                                     this.responseText);
  16.              }
  17.          }
  18.      }
  19.      </script>
[JAVASCRIPT] pobierz, plaintext 

[HTML] pobierz, plaintext 
  1. <html>
  2. <head>
  3.      <title>TEST AJAX</title>
  4.      <meta http-equiv="content-type" content="text/html;charset=utf-8" />
  5.      <script type="text/javascript"> 
  6.   <!-- Tu jest kod JavaScript co podałem wyżej-->
  7.    </script>
  8. </head>
  9. <body>
  10. <div onclick="ajaxTest()" id="content">Kliknij aby wysłać post/plik.</div>
  11. </body>
  12. </html>
[HTML] pobierz, plaintext