diff -Nru --unified=1 iCal.wdgt.orig.wdgt/Calendar.css wwCal.wdgt/Calendar.css
--- iCal.wdgt.orig.wdgt/Calendar.css	2009-02-02 13:32:00.000000000 -0700
+++ wwCal.wdgt/Calendar.css	2010-11-07 00:09:50.000000000 -0600
@@ -204,12 +204,23 @@
 	top: 20px;
 	padding-left: 9px;
 	padding-top: 6px; 
-	width: 163px;
+	width: 193px;
 	font: 13px "Helvetica Neue";
   	font-weight: bold;
 	line-height: 17px;
 }
 
+.calendar-narrowWorkWeekTitle {
+	float: left; 
+	position: relative;
+	left: 3px;
+	width: 22px;
+	border-right: 7px solid transparent;
+	margin-top: 0px;
+  	text-align: right; 
+	color: rgb(153,153,153);
+}
+
 .calendar-narrowDayOfWeekTitle {
 	float: left; 
 	position: relative;
@@ -221,6 +232,48 @@
 	color: rgb(153,153,153);
 }
 
+.calendar-workWeekNumberOuter {
+        background-color: #000000;
+	float: left; 
+	position: relative;
+	left: 3px;
+	width: 22px;
+        height: 16px;
+        top: 1px;
+	border-right: 7px solid transparent;
+	margin-top: 0px;
+  	text-align: right; 
+	color: white;
+}
+
+.calendar-workWeekNumberInner {
+        background-color: #5050f0;
+	float: left; 
+	position: relative;
+	left: 1px;
+	width: 20px;
+        top: -1px;
+        height: 16px;
+	border-right: 7px solid transparent;
+	margin-top: 0px;
+        padding-bottom: 0px;
+        padding-top: 0px;
+  	text-align: right; 
+	color: white;
+}
+
+.calendar-workWeekNumberNormal {
+        background-color: #6263ff;
+	float: left; 
+	position: relative;
+	left: 3px;
+	width: 22px;
+	border-right: 7px solid transparent;
+	margin-top: 0px;
+  	text-align: right; 
+	color: white;
+}
+
 .calendar-dayOfMonthNumberNormal {
 	float: left; 
 	position: relative;
@@ -269,7 +322,7 @@
 
 #Button-Right {
 	position: absolute;
-	left: 126px;
+	left: 156px;
 	top: 7px;
 	padding-left: 20px;
 	padding-right: 15px;
diff -Nru --unified=1 iCal.wdgt.orig.wdgt/Calendar.html wwCal.wdgt/Calendar.html
--- iCal.wdgt.orig.wdgt/Calendar.html	2009-02-02 13:32:00.000000000 -0700
+++ wwCal.wdgt/Calendar.html	2010-11-06 16:59:47.000000000 -0600
@@ -37,6 +37,7 @@
 			<div id="AllContent-Month-Container">
 				<img id="Static-MonthCard" src="Images/monthcard.png" />
 				<div id="Calendar-Container">
+					<span id="WorkWeekHeading" class="calendar-narrowWorkWeekTitle"></span>
 					<span id="DayOfWeek-0" class="calendar-narrowDayOfWeekTitle"></span>
 					<span id="DayOfWeek-1" class="calendar-narrowDayOfWeekTitle"></span>
 					<span id="DayOfWeek-2" class="calendar-narrowDayOfWeekTitle"></span>
diff -Nru --unified=1 iCal.wdgt.orig.wdgt/Calendar.js wwCal.wdgt/Calendar.js
--- iCal.wdgt.orig.wdgt/Calendar.js	2009-04-28 09:23:57.000000000 -0600
+++ wwCal.wdgt/Calendar.js	2011-04-07 13:05:56.000000000 -0600
@@ -24,8 +24,8 @@
 
 
 var kWidgetDayViewWidth = 167;
-var kWidgetDayMonthViewWidth = 333;
-var kWidgetDayMonthEventViewWidth = 485;
+var kWidgetDayMonthViewWidth = 363;
+var kWidgetDayMonthEventViewWidth = 515;
 var kWidgetHeight = 163;
 var kEventViewContentHeight = 129;
 
@@ -33,12 +33,12 @@
 var kDayViewMiddleFillWidth = 142;
 var kDayViewRightContentLeftPosition = 178;
 
-var kDayMonthViewMiddleContainerWidth = 324;
-var kDayMonthViewMiddleFillWidth = 311;
+var kDayMonthViewMiddleContainerWidth = 354;
+var kDayMonthViewMiddleFillWidth = 341;
 var kDayMonthViewRightContentLeftPosition = 151;
 
-var kDayMonthEventViewMiddleContainerWidth = 474;
-var kDayMonthEventViewMiddleFillWidth = 461;
+var kDayMonthEventViewMiddleContainerWidth = 504;
+var kDayMonthEventViewMiddleFillWidth = 491;
 var kDayMonthEventViewRightContentLeftPosition = 152;
 
 var kDayView = "kDayView";
@@ -333,7 +333,7 @@
 		
 	} else if (gCurrentView == kDayMonthView) {
 		// Expand month view.
-		gResizeAnimation.elementMonthContent.style.left = (gResizeAnimation.positionNow - 173) + "px";
+		gResizeAnimation.elementMonthContent.style.left = (gResizeAnimation.positionNow - 203) + "px";
 		rightContentClippingOnItsLeft = kDayMonthViewMiddleContainerWidth - gResizeAnimation.positionNow;
 		gResizeAnimation.elementMonthContent.style.clip = "rect(0,999,999," + rightContentClippingOnItsLeft + ")";
 	} else if (gCurrentView == kDayMonthEventView) {
@@ -388,6 +388,7 @@
 // Get localized names of the narrow days of the week from the plugin and populate the Expanded View's calendar-grid's header:
 //
 {
+        document.getElementById("WorkWeekHeading").innerText = "WW";
 	for (var i = 0;   i <= 6;   i++)
 	{
 		document.getElementById ("DayOfWeek-" + i).innerText = fetchIPrefNarrowDayOfWeekName (i);
@@ -460,6 +461,41 @@
 }
 
 
+/**
+ * Returns the week number for this date.  dowOffset is the day of week the week
+ * "starts" on for your locale - it can be from 0 to 6. If dowOffset is 1 (Monday),
+ * the week returned is the ISO 8601 week number.
+ * @param int dowOffset
+ * @return int
+ */
+Date.prototype.getWeek = function (dowOffset) {
+/*getWeek() was developed by Nick Baicoianu at MeanFreePath: http://www.meanfreepath.com */
+
+        dowOffset = typeof(dowOffset) == 'int' ? dowOffset : 0; //default dowOffset to zero
+        var newYear = new Date(this.getFullYear(),0,1);
+        var day = newYear.getDay() - dowOffset; //the day of week the year begins on
+        day = (day >= 0 ? day : day + 7);
+        var daynum = Math.floor((this.getTime() - newYear.getTime() - 
+        (this.getTimezoneOffset()-newYear.getTimezoneOffset())*60000)/86400000) + 1;
+        var weeknum;
+        //if the year starts before the middle of a week
+        //// no, count the week if *any* day, i.e. Saturday, is in the new year.  so 7 instead of 4.
+        if(day < 7) {
+                weeknum = Math.floor((daynum+day-1)/7) + 1;
+                if(weeknum > 52) {
+                        nYear = new Date(this.getFullYear() + 1,0,1);
+                        nday = nYear.getDay() - dowOffset;
+                        nday = nday >= 0 ? nday : nday + 7;
+                        /*if the next year starts before the middle of
+                          the week, it is week #1 of that year*/
+                        weeknum = nday < 7 ? 1 : 53;
+                }
+        }
+        else {
+                weeknum = Math.floor((daynum+day-1)/7);
+        }
+        return weeknum;
+};
 
 function drawGrid (inJSDate)
 //
@@ -493,8 +529,21 @@
 		var numberOfDaysInPreviousMonth = calculateNumberOfDaysInPreviousMonth (inJSDate);
 		var workingDate = new Date(Calendar.addDeltaForUnitToDate(-zeroBasedFirstDayOfWeekInOurMonth, kCFCalendarUnitDay, dateForOurMonth.getTime()));
 		var ourMonth = Calendar.getUnitForDate(kCFCalendarUnitMonth, dateForOurMonth.getTime())-1;
+
 		for (i = 0;   i < 42;   i++)
 		{
+                        if (!(i%7)) {
+                            var workWeekSpan = document.createElement ("span");
+                            var week = workingDate.getWeek();
+                            workWeekSpan.innerHTML = ((week<10)?"0":"") + week;
+                            //workWeekSpan.setAttribute ("class", "calendar-workWeekNumberNormal");
+                            //monthDiv.appendChild(workWeekSpan);
+                            workWeekSpan.setAttribute ("class", "calendar-workWeekNumberInner");
+                            var outer = document.createElement("span");
+                            outer.setAttribute ("class", "calendar-workWeekNumberOuter");
+                            outer.appendChild(workWeekSpan);
+                            monthDiv.appendChild(outer);
+                        }
 			var dateSpan = document.createElement ("span");
 			
 			var date = Calendar.getUnitForDate(kCFCalendarUnitDay, workingDate.getTime());
@@ -970,7 +1019,7 @@
 						/* starting font size: */		12,
 						/* starting left position: */	23,
 						/* starting top position: */	9,
-						/* max width: */				120,
+						/* max width: */				150,
 						/* max height: */				25);
 }
 
Binary files iCal.wdgt.orig.wdgt/Images/monthcard.png and wwCal.wdgt/Images/monthcard.png differ
Binary files iCal.wdgt.orig.wdgt/Images/monthcard.png.orig and wwCal.wdgt/Images/monthcard.png.orig differ
diff -Nru --unified=1 iCal.wdgt.orig.wdgt/Info.plist wwCal.wdgt/Info.plist
--- iCal.wdgt.orig.wdgt/Info.plist	2009-05-01 12:24:38.000000000 -0600
+++ wwCal.wdgt/Info.plist	2010-11-06 12:50:03.000000000 -0600
@@ -7,9 +7,9 @@
 	<key>CFBundleDevelopmentRegion</key>
 	<string>English</string>
 	<key>CFBundleDisplayName</key>
-	<string>Calendar</string>
+	<string>WorkWeekCalendar</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.apple.widget.calendar</string>
+	<string>com.davidsimmons.workweekcalendar</string>
 	<key>CFBundleName</key>
 	<string>Calendar</string>
 	<key>CFBundleShortVersionString</key>
