function sanitize_title($title) {
    $title = strip_tags($title);
    $tr_krtr = array('Ö'=>'O','Ş'=>'S','Ü'=>'U','Ç'=>'C','İ'=>'I','Ğ'=>'G','ı'=>'i','ğ'=>'g','ü'=>'u','ö'=>'o','ç'=>'c','ş'=>'s');
    $title = strtr($title,$tr_krtr);
    $title = strtolower($title);
    $title = eregi_replace('[^a-zA-Z0-9_-]','',$title);
    return $title;
}