I've got a custom javascript autocomplete script that hits the server with multiple asynchronous ajax requests. (Everytime a key gets pressed.)

I've noticed that sometimes an earlier ajax request will be returned after a later requests, which messes things up.

The way I handle this now is I have a counter that increments for each ajax request. Requests that come back with a lower count get ignored.

I'm wondering: Is this proper? Or is there a better way of dealing with this issue?

Thanks in advance,

Travis