protected function _createThumbnail($file, $x, $y)
{
require_once NOLOTIRO_PATH . '/library/SimpleImage.php';
$file_ext = substr(strrchr($file, '.'), 1);
$fileuniquename = md5(uniqid(mktime())) . '.' . $file_ext;
$image = new SimpleImage();
$image->load('/tmp/' . $file);
//save original to right place
$widthmax = 900;
$heightmax = 1000;
$image->resizeToHeightMax($heightmax);
$image->resizeToWidthMax($widthmax);
$image->save(NOLOTIRO_PATH . '/www/images/uploads/ads/original/' . $fileuniquename);
//save thumb
$image->resizeToHeight($y);
$image->resizeToWidth($x);
$image->save(NOLOTIRO_PATH . '/www/images/uploads/ads/100/' . $fileuniquename);
return $fileuniquename;
}