The cpu miner should work as well... you dont need to install anything...
He's looking for a browser-based miner which can be embedded on a website I think.
He would need to make the cpuminer into a web-based application (which is what litecoinpool's miner does).
I could probably clone litecoinpool's miner (or something comparable) and make it so you can set it up with your own pool url, user/pass, and intensity settings if someone's willing to put out some coin for the finished product.
I would post a demo of the working app here first before taking payment.