$_FILES problem

[shibbi3]

hey everyone,

I was wondering what I am doing wrong here:

[code]

<b>Attachment:</b><br /><input type="file" name="probe" value="<?php if (isset($_POST['probe'])) echo htmlentities(stripslashes($_POST['probe'])); else echo ""; ?>" size="20"/></p>
  <br />
  <p><input type="submit" name="form_submitted" value="OK - Submit" /></p>
  <?php
$fileatt_name = $_FILES['probe']['name'];
$fileatt_tmp = $_FILES['probe']['tmp_name'];

                      if(empty($fileatt_name))
                      {
                              echo 'empty';
                      }
                        else
                            {
                                  echo 'good';
                        }

?>

[/code]

It keeps saying that it is empty but there shouldn't be right? lil confused... anyone know?