About HTML unicode

Hi list: 

 I've a problem to convert a unicode character into it's decimal or 
Hexadecimal value. The following URL:
http://code.cside.com/3rdpage/us/unicode/converter.html
 can easily convert via Javascript function escape(), but i wonder that is 
there some method or function
or modules can do the same job?? If i can do it, then in one html page, i 
can display ont only chinese, but
also japanese, korea etc... This is something like HTML unicode, am i right? 

 The ord() function can't do the job because it return the incorrect decimal 
value. perhaps i do not describe
this question clearly, and hope all can excuse me :) 

 Thanks a lot if anybody can give me some advise, i'm new to unicode! 

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 HZQBBC < hzqbbc (at) damail (dot) cn >