From 1fb2405a4de39c61a09d74ae5acf558296dc547f Mon Sep 17 00:00:00 2001
From: Gargaj <gargaj@conspiracy.hu>
Date: Thu, 16 Aug 2012 16:01:10 +0200
Subject: [PATCH 1/3] added feature to define first day of the week for us
 Europeans

---
 javascripts/calendarview.js | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/javascripts/calendarview.js b/javascripts/calendarview.js
index f4be8f7..b231af6 100644
--- a/javascripts/calendarview.js
+++ b/javascripts/calendarview.js
@@ -218,11 +218,12 @@ Calendar.setup = function(params)
   param_default('parentElement', null)
   param_default('selectHandler',  null)
   param_default('closeHandler', null)
+  param_default('firstDayOfTheWeek', 0)
 
   // In-Page Calendar
   if (params.parentElement)
   {
-    var calendar = new Calendar(params.parentElement)
+    var calendar = new Calendar(params.parentElement, params)
     calendar.setSelectHandler(params.selectHandler || Calendar.defaultSelectHandler)
     if (params.dateFormat)
       calendar.setDateFormat(params.dateFormat)
@@ -243,7 +244,7 @@ Calendar.setup = function(params)
   {
     var triggerElement = $(params.triggerElement || params.dateField)
     triggerElement.onclick = function() {
-      var calendar = new Calendar()
+      var calendar = new Calendar(null, params)
       calendar.setSelectHandler(params.selectHandler || Calendar.defaultSelectHandler)
       calendar.setCloseHandler(params.closeHandler || Calendar.defaultCloseHandler)
       if (params.dateFormat)
@@ -280,6 +281,7 @@ Calendar.prototype = {
   minYear: 1900,
   maxYear: 2100,
   dateFormat: '%Y-%m-%d',
+  firstDayOfTheWeek: 0,
 
   // Dates
   date: new Date(),
@@ -296,12 +298,12 @@ Calendar.prototype = {
   // Initialize
   //----------------------------------------------------------------------------
 
-  initialize: function(parent)
+  initialize: function(parent, options)
   {
     if (parent)
-      this.create($(parent))
+      this.create($(parent), options)
     else
-      this.create()
+      this.create(null, options)
   },
 
 
@@ -330,7 +332,7 @@ Calendar.prototype = {
 
     // Calculate the first day to display (including the previous month)
     date.setDate(1)
-    date.setDate(-(date.getDay()) + 1)
+    date.setDate(-(date.getDay()) + 1 + this.firstDayOfTheWeek)
 
     // Fill in the days of the month
     Element.getElementsBySelector(this.container, 'tbody tr').each(
@@ -387,7 +389,7 @@ Calendar.prototype = {
   // Create/Draw the Calendar HTML Elements
   //----------------------------------------------------------------------------
 
-  create: function(parent)
+  create: function(parent, options)
   {
 
     // If no parent was specified, assume that we are creating a popup calendar.
@@ -397,6 +399,7 @@ Calendar.prototype = {
     } else {
       this.isPopup = false
     }
+    if (options.firstDayOfTheWeek) this.firstDayOfTheWeek = options.firstDayOfTheWeek;
 
     // Calendar Table
     var table = new Element('table')
@@ -424,7 +427,7 @@ Calendar.prototype = {
     // Day Names
     row = new Element('tr')
     for (var i = 0; i < 7; ++i) {
-      cell = new Element('th').update(Calendar.SHORT_DAY_NAMES[i])
+      cell = new Element('th').update(Calendar.SHORT_DAY_NAMES[(i + this.firstDayOfTheWeek) % 7])
       if (i == 0 || i == 6)
         cell.addClassName('weekend')
       row.appendChild(cell)

From 5f35751d1a05c2ab6e3b3bc66de984dc06953acc Mon Sep 17 00:00:00 2001
From: Gargaj <gargaj@conspiracy.hu>
Date: Thu, 16 Aug 2012 16:03:35 +0200
Subject: [PATCH 2/3] minor codeproofing

---
 javascripts/calendarview.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/javascripts/calendarview.js b/javascripts/calendarview.js
index b231af6..c5cec2a 100644
--- a/javascripts/calendarview.js
+++ b/javascripts/calendarview.js
@@ -332,7 +332,7 @@ Calendar.prototype = {
 
     // Calculate the first day to display (including the previous month)
     date.setDate(1)
-    date.setDate(-(date.getDay()) + 1 + this.firstDayOfTheWeek)
+    date.setDate(-(date.getDay()) + (1 + this.firstDayOfTheWeek) % 7)
 
     // Fill in the days of the month
     Element.getElementsBySelector(this.container, 'tbody tr').each(

From 1734d9486e5070921d740253ae8f3594225ce85c Mon Sep 17 00:00:00 2001
From: Gargaj <gargaj@conspiracy.hu>
Date: Sun, 11 Jan 2015 16:16:58 +0100
Subject: [PATCH 3/3] This bugs out if 1st is Sunday

---
 javascripts/calendarview.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/javascripts/calendarview.js b/javascripts/calendarview.js
index c5cec2a..223ca40 100644
--- a/javascripts/calendarview.js
+++ b/javascripts/calendarview.js
@@ -332,7 +332,7 @@ Calendar.prototype = {
 
     // Calculate the first day to display (including the previous month)
     date.setDate(1)
-    date.setDate(-(date.getDay()) + (1 + this.firstDayOfTheWeek) % 7)
+    date.setDate( -(date.getDay() - 1) - ((7 - this.firstDayOfTheWeek) % 7) )
 
     // Fill in the days of the month
     Element.getElementsBySelector(this.container, 'tbody tr').each(