SP11+ filter results on an Item field

オフライン
We have just upgraded to SP11 and the method I used to filter results from an Item field no nolonger works due to the type ahead functionality. The method works if selecting the elipses to open up the search window, but if I just type in the box it does not run. Is there a way to limit the results shown when typing in an item field on the form in the same way the method runs?   Current method: var retObj = {}; retObj.inactive_user = {filterValue: '0', isFilterFixed: true,}; return retObj;