[jQuery] Parent window grabs focus from popup in IE

I'm using the Autocomplete plugin and chaining some actions to the result. One of these actions is a popup, and the popup maintains focus under FF, but under IE the parent window grabs focus back when the form input is finally updated at the end of the chain by autocomplete. Example code:

[jQuery] [autocomplete] linked input boxes not refreshing

I have two inputs using autocomplete. The second passes an extra parameter based on the value of first. However, the second input box will not be update it's local results when value of the first input box changes. I've tried clearing the cache and that doesn't seem to work. The best I can do is i