function sef($text){
    $tr = array('ı','s','S','i','I','g','G','ü','Ãœ','ö','Ö','Ç','ç','ı','Ş','ş','ğ','İ','Ğ','ÅŸ','Åž','ı','Ä°');
    $eng = array('i','s','S','i','I','g','G','u','U','o','O','C','c','i','s','s','g','I','g','s','s','i','i');
    $text = str_replace($tr,$eng,$text);
    $text = eregi_replace('[^0-9A-Za-z]',"-",$text);
    $text = preg_replace("@--*@","-",$text);
    return strtolower($text);
}