function win2uni($s)
{
 $s = convert_cyr_string($s,'w','i'); //  win1251 -> iso8859-5
 //  iso8859-5 -> unicode:
 for ($result='', $i=0; $i<strlen($s); $i++) {
   $charcode = ord($s[$i]);
   $result .= ($charcode>175)?"&#".(1040+($charcode-176)).";":$s[$i];
   }
   return $result;
}