[Dbmail] questions about chinese

[wzy sohu]

hi:
    I have read your answer about a mailbox name which mixes English ,Japanese 
and Chinese .
    but how can i decode the BASE64 to Chinese . i have used your function 
base64decode() but the answer is not correct, for example i decode "g0l6Pw" i 
got "�Iz" but the right answer is "草稿"（means "draft"), and i use the function 
base64encode() to encode the word "草稿" the answer is "st245Q==".
    my client is outlook.
        thank you.
                                                         wzy
                                                        2.14