Upload script vil ikke virke...

$uploadDir = "../boligBilleder/"; //Bibliotek hvor filer uploades til - husk chmod 777
$allowedFileTypes = array('jpg','JPG','jpeg'); //Hvilke filer vil vi acceptere bliver uploadet?

//Er der trykket på Upload file knappen?
if(isset($_POST['myUpload']))
{
  //Har vi en fil?
  if(is_uploaded_file($_FILES['myFile']['tmp_name']))
  {
    //Filendelse
    $extension = strtolower(pathinfo($_FILES['myFile']['name'],PATHINFO_EXTENSION));
   
    //Er filen en af de filer vi gerne vil have?
    if(in_array($extension,$allowedFileTypes))
    {   

      //Vi flytter filen fra tmp til vores UPLOADDIR
      if(move_uploaded_file($_FILES['myFile']['tmp_name'],$uploadDir . basename($_FILES['myFile']['tmp_name']).'.jpg'))
      {
          $fileName = basename($_FILES["myFile"]["tmp_name"]).".jpg";
          $myNewFile = "/boligBilleder/".$fileName;
          $id = $_GET['url'];
        //echo '<p style="color:green;"><b>File ('.basename($_FILES['myFile']['name']).') uploaded succesfully</b></p> '.$uploadDir.$fileName.'<br>';

        $sql = "UPDATE lejemaal SET billede2 = '{$myNewFile}' WHERE url = '{$id}' ";
            if(mysql_query($sql)){
                //print "Din fil ligger nu i databasen!";
                print "<img height=125px src=".$myNewFile.">";
            }else{
                echo "query fejl";
                echo "<p>".mysql_error()."</p>";
            }
        }
      else
      {
        echo '<h3 style="color:red;">Error - unable to upload file: '.basename($_FILES['myFile']['name']).'</h3>';
      }
    }
    else
    {
      echo '<h3 style="color:red;">Wrong filetype, allowed filetypes are: ('.implode(',',$allowedFileTypes).')</h3>';
    }
  }
  else
  {
    echo '<h3 style="color:red;">No file selected<h3>';
  }
}else{

//Vores form
echo '<form action=# method="post" enctype="multipart/form-data">';
echo 'File ('.implode(',',$allowedFileTypes).'): <input type="file" name="myFile"><br />';
echo '<input type="submit" name="myUpload" value="Upload file">';
echo '</form>';

}
?>