1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
calendar.js - Calendar functions by Adrian Holovaty
depends on core.js for utility functions like removeChildren or quickElement
*/
// CalendarNamespace -- Provides a collection of HTML calendar-related helper functions
var CalendarNamespace = {
monthsOfYear: gettext('January February March April May June July August September October November December').split(' '),
daysOfWeek: gettext('S M T W T F S').split(' '),
firstDayOfWeek: parseInt(get_format('FIRST_DAY_OF_WEEK')),
isLeapYear: function(year) {
return (((year % 4)==0) && ((year % 100)!=0) || ((year % 400)==0));
},
getDaysInMonth: function(month,year) {
var days;
if (month==1 || month==3 || month==5 || month==7 || month==8 || month==10 || month==12) {
days = 31;
}
else if (month==4 || month==6 || month==9 || month==11) {
days = 30;
}
else if (month==2 && CalendarNamespace.isLeapYear(year)) {
days = 29;
}
else {
days = 28;
}
return days;
},
draw: function(month, year, div_id, callback) { // month = 1-12, year = 1-9999
var today = new Date();
var todayDay = today.getDate();
var todayMonth = today.getMonth()+1;
var todayYear = today.getFullYear();
var todayClass = '';
month = parseInt(month);
year = parseInt(year);
var calDiv = document.getElementById(div_id);
removeChildren(calDiv);
var calTable = document.createElement('table');
quickElement('caption', calTable, CalendarNamespace.monthsOfYear[month-1] + ' ' + year);
var tableBody = quickElement('tbody', calTable);
// Draw days-of-week header
var tableRow = quickElement('tr', tableBody);
for (var i = 0; i < 7; i++) {
quickElement('th', tableRow, CalendarNamespace.daysOfWeek[(i + CalendarNamespace.firstDayOfWeek) % 7]);
}
var startingPos = new Date(year, month-1, 1 - CalendarNamespace.firstDayOfWeek).getDay();
var days = CalendarNamespace.getDaysInMonth(month, year);
// Draw blanks before first of month
tableRow = quickElement('tr', tableBody);
for (var i = 0; i < startingPos; i++) {
var _cell = quickElement('td', tableRow, ' ');
_cell.style.backgroundColor = '#f3f3f3';
}
// Draw days of month
var currentDay = 1;
for (var i = startingPos; currentDay <= days; i++) {
if (i%7 == 0 && currentDay != 1) {
tableRow = quickElement('tr', tableBody);
}
if ((currentDay==todayDay) && (month==todayMonth) && (year==todayYear)) {
todayClass='today';
} else {
todayClass='';
}
var cell = quickElement('td', tableRow, '', 'class', todayClass);
quickElement('a', cell, currentDay, 'href', 'javascript:void(' + callback + '('+year+','+month+','+currentDay+'));');
currentDay++;
}
// Draw blanks after end of month (optional, but makes for valid code)
while (tableRow.childNodes.length < 7) {
var _cell = quickElement('td', tableRow, ' ');
_cell.style.backgroundColor = '#f3f3f3';
}
calDiv.appendChild(calTable);
}
}
// Calendar -- A calendar instance
function Calendar(div_id, callback) {
// div_id (string) is the ID of the element in which the calendar will
// be displayed
// callback (string) is the name of a JavaScript function that will be
// called with the parameters (year, month, day) when a day in the
// calendar is clicked
this.div_id = div_id;
this.callback = callback;
this.today = new Date();
this.currentMonth = this.today.getMonth() + 1;
this.currentYear = this.today.getFullYear();
}
Calendar.prototype = {
drawCurrent: function() {
CalendarNamespace.draw(this.currentMonth, this.currentYear, this.div_id, this.callback);
},
drawDate: function(month, year) {
this.currentMonth = month;
this.currentYear = year;
this.drawCurrent();
},
drawPreviousMonth: function() {
if (this.currentMonth == 1) {
this.currentMonth = 12;
this.currentYear--;
}
else {
this.currentMonth--;
}
this.drawCurrent();
},
drawNextMonth: function() {
if (this.currentMonth == 12) {
this.currentMonth = 1;
this.currentYear++;
}
else {
this.currentMonth++;
}
this.drawCurrent();
},
drawPreviousYear: function() {
this.currentYear--;
this.drawCurrent();
},
drawNextYear: function() {
this.currentYear++;
this.drawCurrent();
}
}
|
