function editurl ($string)
{
 $string = strtolower($string);
 $special = array(
            '?','!','.',',',':',';','*','(',')','{','}','[',']','%','#','¹','@','$','^','-','+','/','\\','=','|','"','\'',
            'à','á','â','ã','ä','å','¸','ç','è','é','ê',
            'ë','ì','í','î','ï','ð','ñ','ò','ó','ô','õ',
            'ú','û','ý',' ','æ','ö','÷','ø','ù','ü','þ','ÿ');
 $normal = array('_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_','_',
           'a','b','v','g','d','e','e','z','i','y','k',
          'l','m','n','o','p','r','s','t','u','f','h',
           'j','i','e','_','zh','ts','ch','sh','shch',
           '','yu','ya');
 $string =  str_replace($special, $normal, $string);
 return preg_replace(array('/[^a-zA-Z0-9 -]/', '/[ -]+/', '/^-|-$/'), array('', '-', ''), $string);
}