Convert a php function in to classic ASP function

I have a function written in Php. That would be great if somebody could translate it in to classic ASP/vbscript code. Function is as below: function ipnVerification() { $secretKey="YOUR SECRET KEY"; $pop = ""; $ipnFields = array(); foreach ($_POST as $key => $value) { if ($key == "cverify") { continue; } $ipnFields[] = $key; } sort($ipnFields); foreach ($ipnFields as $field) { // if Magic Quotes are enabled $_POST[$field] will need to be // un-escaped before being appended to $pop $pop = $pop . $_POST[$field] . "|"; } $pop = $pop . $secretKey; $calcedVerify = sha1(mb_convert_encoding($pop, "UTF-8")); $calcedVerify = strtoupper(substr($calcedVerify,0,8)); return $calcedVerify == $_POST["cverify"]; } Thanks, Ahmad.