I have a page where a person can use a dropdownlist to choose employees. If the employee is not found in the dropdownlist, then I provide a popupbox where they can add the new employees information. After they close this box, I would like the new employee data to show up in the dropdownlist without the page refreshing. Im using Visual Studio 2005, but my company has not approved any of the AJAX toolkit stuff so I cant use update panels for this. What is the easiest way to do this considering my limitations?