Creating a wrapper function for jQuery Ajax
I heard you like wrappers
So I wrapped your wrapper (jQuery) in a wrapper (your thing) so you can do ajax.
Why do you do this again??
Instead of wrapping over (slow) jQuery you could just wrap the native ajax functionality. In general I expect that to be faster. Additionally this frees your API to be changed independently of jQuery and it removes that nasty jQuery dependency at all.
Don't wrap wrappers in wrappers, unless you add significant functionality
What significant improvement does your API provide over jQuery's?