Calling webservice and filling select tag with returned options

gistfile1.js

$(document.getElementsByName("Lic")).click(function () {

		//this.checked;
		//$('#ShiftID').html('<option value="TEST">TEST</option>')

		$.getJSON("/ResourcePoolND/NurseRequest/UpdateShifts?Value=" + this.checked, function (data) {
			$("#ShiftID").html(data);
		});
	});


// Codebehind
		[AcceptVerbs(HttpVerbs.Get)]
		public JsonResult UpdateShifts(string Value)
		{
			bool lic = true;
			bool.TryParse(Value, out lic);

			ResourcePoolEntities resourcePoolEntities = new ResourcePoolEntities();
			var shiftQuery = resourcePoolEntities.Shifts.Where(m => m.Lic == lic).Select(a => a);

			StringBuilder sb = new StringBuilder();

			sb.AppendFormat("<option value=\"\">Please Select a Shift</option>");

			foreach (Shift s in shiftQuery)
				sb.AppendFormat("<option value=\"{0}\">{1}</option>", s.ShiftID, s.Shift1);

			return Json(sb.ToString(), JsonRequestBehavior.AllowGet);
		}