Change DIV on select

I need to change an input in a cfform from A to B when a selection is made from a select above the inputs. Input A has an autosuggest list that works for Authors and this is the default. I have to add a list for Owners that is input B. So when someone goes to the site and selects Owners from the dropdown select box the div containing input B replaces input A. I can use javascript or jQuery 1.6