Index: ui.datepicker.js
===================================================================
--- ui.datepicker.js	(revision 927)
+++ ui.datepicker.js	(working copy)
@@ -42,6 +42,7 @@
 	this._currentClass = 'ui-datepicker-current-day'; // The name of the current day marker class
 	this._dayOverClass = 'ui-datepicker-days-cell-over'; // The name of the day hover marker class
 	this._weekOverClass = 'ui-datepicker-week-over'; // The name of the week hover marker class
+	this._holidayClass = 'ui-datepicker-holiday'; // The name of the holiday class
 	this.regional = []; // Available regional settings, indexed by language code
 	this.regional[''] = { // Default regional settings
 		clearText: 'Clear', // Display text for clear link
@@ -130,6 +131,7 @@
 		rangeSeparator: ' - ', // Text between two dates in a range
 		altField: '', // Selector for an alternate field to store selected dates into
 		altFormat: '', // The date format to use for the alternate field
+        holidays: [], // list of timestamp for national holidays e.g. [ new Date(2008,1-1,1,).getTime()]
 		constrainInput: true // The input is constrained by the current date format
 	};
 	$.extend(this._defaults, this.regional['']);
@@ -1436,6 +1438,7 @@
 		var dateStatus = this._get(inst, 'statusForDate') || this.dateStatus;
 		var endDate = inst.endDay ? new Date(inst.endYear, inst.endMonth, inst.endDay) : currentDate;
 		var defaultDate = this._getDefaultDate(inst);
+        var holidays = this._get(inst, 'holidays');
 		for (var row = 0; row < numMonths[0]; row++)
 			for (var col = 0; col < numMonths[1]; col++) {
 				var selectedDate = new Date(drawYear, drawMonth, inst.selectedDay);
@@ -1487,6 +1490,7 @@
 							(otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
 							(printDate.getTime() >= currentDate.getTime() && printDate.getTime() <= endDate.getTime() ? // in current range
 							' ' + this._currentClass : '') + // highlight selected day
+                            (jQuery.inArray(printDate.getTime(), holidays) > -1 ? ' ' + this._holidayClass + ' ' : '') + // holiday
 							(printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
 							((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
 							(unselectable ? (highlightWeek ? ' onmouseover="jQuery(this).parent().addClass(\'' + this._weekOverClass + '\');"' + // highlight selection week