I am trying to make an autocomplete input list box in Jquery. What I am a little lost on is that I am pointing to a JSON file from a RESTful url, the JSON file that is produced has a list and each record has more than one property. Let's say I am trying to use employee last names and the department Id as a filter. How could I filter and grab only the employee last names? The JSON includes the first name, the employeeid, the last name and the department id for each record.