Using a jQuery Autocomplete combobox like on the demo
http://jqueryui.com/demos/autocomplete/#combobox
How do I reset the visible user-entered text using jQuery?
(after the user has entered some text, made an autocomplete choice and caused, an unrelated, change)
Note: Changing the underlying select element does not cause any change in the autocomplete input field.
Note 2: This is one of many autocomplete comboboxes on the page in question (unlike demo)
I am able to reset the demo with the following code. One thing to note is that the select box is hidden but the values need to be maintained.