switch ($_FILES['Filedata']['error'])
      {
        case 0:
          $errorReason = "No Error";
          break;
        case 1:
          $errorReason = "The file is bigger than this PHP installation allows";
          break;
        case 2:
          $errorReason = "The file is bigger than this form allows";
          break;
        case 3:
          $errorReason = "Only part of the file was uploaded";
          break;
        case 4:
          $errorReason = "No file was uploaded";
          break;
        case 6:
          $errorReason = "Missing a temporary folder";
          break;
        case 7:
          $errorReason = "Failed to write file to disk";
          break;
        case 8:
          $errorReason = "File upload stopped by extension";
          break;
        default:
          $errorReason = "unknown error " . $_FILES['Filedata']['error'];
          break;
      }