Datepicker: Fixed #4917 Enter key press on popup fails if _dayOverClass td is after _currentClass td

Author: kbwood

ui/jquery.ui.datepicker.js

@@ -480,8 +480,8 @@ $.extend(Datepicker.prototype, {
 				case 9: $.datepicker._hideDatepicker();
 						handled = false;
 						break; // hide on tab out
-				case 13: var sel = $('td.' + $.datepicker._dayOverClass +
-							', td.' + $.datepicker._currentClass, inst.dpDiv);
+				case 13: var sel = $('td.' + $.datepicker._dayOverClass, inst.dpDiv).
+							add($('td.' + $.datepicker._currentClass, inst.dpDiv));
 						if (sel[0])
 							$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
 						else