Need a javascript/jQuery guru

I am in a dire need of a true expert with javascripting. Knowing how to write native javascript is a must, and some jQuery wont hurt (but I dont think jQuery can solve this particular issue).

What I need the javascript person to be particularly well versed in the window.unload function and knowing its behavior, how to manipulate it and how to make sure it fires off at the right time under the right conditions.

Since this job requires the window.unload function as the primary function I think the person also needs to know how to run AJAX functions as certain things in indirect relation to the window.unload function needs to be triggered.

Please PM and I will be able to give you more details. Also please mention your hourly rate so that I know what we are talking about.