Advanced Encryption satndard AES in PHP

My problem is i cannot use mcrypt library bcos we are hosting the application in some one else server. there mcrypt is not configured. another thing i like to use Advanced Encryption satndard AES. How we can implement it through PHP. I feel AES is the latest encryption technology. am i right?
PHP Application on server will encypt the data and at the clientside Javascript will be used to decrypt the data.
Do u have any code which you impleneted AES through PHP/Javascript. Waiting for ur comments

I haven't tested the following class from PHPCLASSES, but it claims that encryption is done in pure PHP code.
http://www.phpclasses.org/browse/package/3650.html

Please let's know if that works or not.

Cheers,
Ess