MACROMEDIA FLASH MX 2004 - ACTIONSCRIPT Reference Manual page 460

Returns
A string.
Description
String function; converts an ASCII code number to a multibyte character.
See also
String.fromCharCode()
mblength
Availability
Flash Player 4. This function has been deprecated in favor of the
Usage
mblength(string)
Parameters
A string.
string
Returns
A number.
Description
String function; returns the length of the multibyte character string.
mbord
Availability
Flash Player 4. This function was deprecated in Flash 5 in favor of
Usage
mbord(character)
Parameters
The character to convert to a multibyte number.
character
Returns
A number.
Description
String function; converts the specified character to a multibyte number.
See also
String.fromCharCode()
460 Chapter 12: ActionScript Dictionary
String class.
String.charCodeAt()
.