I guess I was not very clear with what I had written. In simple terms, what you are saying is correct and matter of fact thats exactly what I want.

Lets say I want to generate some random japanese characters which are of 2 bytes. Pl. note that I still don't know whether you can encode a japanese character in utf8 or utf16 or whatever the character set maybe.

Bottom line is, I dont really care about what language the characters get generated in. I shouldn't have used the term 'length'. What I meant was I want to generate a character string composed of characters of 2 bytes each, 4 bytes each etc.

Hope that clarifies things a bit.

BrowserUK, tall_man thanks for the response, but it doesn't quite solve my purpose. I hope this post adds a little more clarity to what I seek

Thanks everyone