FileMaker Pro Custom Functions

/*Converts url encoded characters in input string back to unencoded text. Complete table of hexadecimal codes can be found here http://www.december.com/html/spec/ascii.html see function URLEncode*/ Substitute ( text ; [ "%25" ; "%" ] ; [ "%0D" ; "¶" ] ; [ "%20" ; " " ] ; [ "%21" ; "!" ] ; [ "%22" ; "\"" ] ; [ "%23" ; "#" ] ; [ "%24" ; "$" ] ; [ "%26" ; "&" ] ; [ "%27" ; "'" ] ; [ "%28" ; "(" ] ; [ "%29" ; ")" ] ; [ "%2A" ; "*" ] ; [ "%2B" ; "+" ] ; [ "%2C" ; "," ] ; [ "%2D" ; "-" ] ; [ "%2E" ; "." ] ; [ "%2F" ; "/" ] ; [ "%3A" ; ":" ] ; [ "%3B" ; ";" ] ; [ "%3C" ; "<" ] ; [ "%3D" ; "=" ] ; [ "%3E" ; ">" ] ; [ "%3F" ; "?" ] ; [ "%40" ; "@" ] ; [ "%5B" ; "[" ] ; [ "%5C" ; "\\" ] ; [ "%5D" ; "]" ] ; [ "%5E" ; "^" ] ; [ "%60" ; "`" ] ; [ "%7B" ; "{" ] ; [ "%7C" ; "|" ] ; [ "%7D" ; "}" ] )
 Then copy & paste into FileMaker Advanced's Edit Custom Function window.