Maybe jQuery-I am looking for and expert JavaScript coder to write a script for me

I am a developer and work on e-commerce sites and I do know JavaScript but this would be a fairly advanced script and I would rather have my client pay me to pay someone who would be better at it then I

It is possible this script could take advantage of jQuery.

I hope I posted this in the correct place and do apologize if I have posted it incorrectly or if this type of post is inappropriate

This script would be used commercially on an e-commerce cart

I can go into details if interested. PayPal I would guess. I am in the NW USA