diff --git a/calendar/resources/content/datepicker/calendar.xml b/calendar/resources/content/datepicker/calendar.xml
index d314ba7da0e3..b656e2917d0d 100644
--- a/calendar/resources/content/datepicker/calendar.xml
+++ b/calendar/resources/content/datepicker/calendar.xml
@@ -352,9 +352,22 @@
 			<parameter name="aDate"/>
 			<body><![CDATA[
 
-            var monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
-    
-            var midx = aDate.getMonth();
+            this.dateStringBundle = srGetStrBundle("chrome://calendar/locale/dateFormat.properties");
+			var monthNames=new Array(12);
+			monthNames[0]=this.dateStringBundle.GetStringFromName("month.1.name" );
+			monthNames[1]=this.dateStringBundle.GetStringFromName("month.2.name" );
+			monthNames[2]=this.dateStringBundle.GetStringFromName("month.3.name" );
+			monthNames[3]=this.dateStringBundle.GetStringFromName("month.4.name" );
+			monthNames[4]=this.dateStringBundle.GetStringFromName("month.5.name" );
+			monthNames[5]=this.dateStringBundle.GetStringFromName("month.6.name" );
+			monthNames[6]=this.dateStringBundle.GetStringFromName("month.7.name" );
+			monthNames[7]=this.dateStringBundle.GetStringFromName("month.8.name" );
+			monthNames[8]=this.dateStringBundle.GetStringFromName("month.9.name" );
+			monthNames[9]=this.dateStringBundle.GetStringFromName("month.10.name" );
+			monthNames[10]=this.dateStringBundle.GetStringFromName("month.11.name" );
+			monthNames[11]=this.dateStringBundle.GetStringFromName("month.12.name" );
+		
+			var midx = aDate.getMonth();
             
             return monthNames[midx];
 	
