New Post: Changing the default Operator in property picker in Advanced Search SharePoint

This sounded like exactly what i needed to do also, but when I implement this script, the "Contains" operator displays when the page loads, but when i select a property, the operator changes back to Equals. Do either of you have any suggestions about how to change this so that the Operator value does not reset?

FYI, I'm using jQuery 1.8.3.

TIA
Dean