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// Core javascript helper functions
// basic browser identification & version
var isOpera = (navigator.userAgent.indexOf("Opera") >= 0) && parseFloat(navigator.appVersion);
var isIE = ((document.all) && (!isOpera)) && parseFloat(navigator.appVersion.split("MSIE ")[1].split(";")[0]);
// quickElement(tagType, parentReference [, textInChildNode, attribute, attributeValue ...]);
function quickElement() {
'use strict';
var obj = document.createElement(arguments[0]);
if (arguments[2]) {
var textNode = document.createTextNode(arguments[2]);
obj.appendChild(textNode);
}
var len = arguments.length;
for (var i = 3; i < len; i += 2) {
obj.setAttribute(arguments[i], arguments[i + 1]);
}
arguments[1].appendChild(obj);
return obj;
}
// "a" is reference to an object
function removeChildren(a) {
'use strict';
while (a.hasChildNodes()) {
a.removeChild(a.lastChild);
}
}
// ----------------------------------------------------------------------------
// Find-position functions by PPK
// See https://www.quirksmode.org/js/findpos.html
// ----------------------------------------------------------------------------
function findPosX(obj) {
'use strict';
var curleft = 0;
if (obj.offsetParent) {
while (obj.offsetParent) {
curleft += obj.offsetLeft - ((isOpera) ? 0 : obj.scrollLeft);
obj = obj.offsetParent;
}
// IE offsetParent does not include the top-level
if (isIE && obj.parentElement) {
curleft += obj.offsetLeft - obj.scrollLeft;
}
} else if (obj.x) {
curleft += obj.x;
}
return curleft;
}
function findPosY(obj) {
'use strict';
var curtop = 0;
if (obj.offsetParent) {
while (obj.offsetParent) {
curtop += obj.offsetTop - ((isOpera) ? 0 : obj.scrollTop);
obj = obj.offsetParent;
}
// IE offsetParent does not include the top-level
if (isIE && obj.parentElement) {
curtop += obj.offsetTop - obj.scrollTop;
}
} else if (obj.y) {
curtop += obj.y;
}
return curtop;
}
//-----------------------------------------------------------------------------
// Date object extensions
// ----------------------------------------------------------------------------
(function() {
'use strict';
Date.prototype.getTwelveHours = function() {
return this.getHours() % 12 || 12;
};
Date.prototype.getTwoDigitMonth = function() {
return (this.getMonth() < 9) ? '0' + (this.getMonth() + 1) : (this.getMonth() + 1);
};
Date.prototype.getTwoDigitDate = function() {
return (this.getDate() < 10) ? '0' + this.getDate() : this.getDate();
};
Date.prototype.getTwoDigitTwelveHour = function() {
return (this.getTwelveHours() < 10) ? '0' + this.getTwelveHours() : this.getTwelveHours();
};
Date.prototype.getTwoDigitHour = function() {
return (this.getHours() < 10) ? '0' + this.getHours() : this.getHours();
};
Date.prototype.getTwoDigitMinute = function() {
return (this.getMinutes() < 10) ? '0' + this.getMinutes() : this.getMinutes();
};
Date.prototype.getTwoDigitSecond = function() {
return (this.getSeconds() < 10) ? '0' + this.getSeconds() : this.getSeconds();
};
Date.prototype.getFullMonthName = function() {
return typeof window.CalendarNamespace === "undefined"
? this.getTwoDigitMonth()
: window.CalendarNamespace.monthsOfYear[this.getMonth()];
};
Date.prototype.strftime = function(format) {
var fields = {
B: this.getFullMonthName(),
c: this.toString(),
d: this.getTwoDigitDate(),
H: this.getTwoDigitHour(),
I: this.getTwoDigitTwelveHour(),
m: this.getTwoDigitMonth(),
M: this.getTwoDigitMinute(),
p: (this.getHours() >= 12) ? 'PM' : 'AM',
S: this.getTwoDigitSecond(),
w: '0' + this.getDay(),
x: this.toLocaleDateString(),
X: this.toLocaleTimeString(),
y: ('' + this.getFullYear()).substr(2, 4),
Y: '' + this.getFullYear(),
'%': '%'
};
var result = '', i = 0;
while (i < format.length) {
if (format.charAt(i) === '%') {
result = result + fields[format.charAt(i + 1)];
++i;
}
else {
result = result + format.charAt(i);
}
++i;
}
return result;
};
// ----------------------------------------------------------------------------
// String object extensions
// ----------------------------------------------------------------------------
String.prototype.strptime = function(format) {
var split_format = format.split(/[.\-/]/);
var date = this.split(/[.\-/]/);
var i = 0;
var day, month, year;
while (i < split_format.length) {
switch (split_format[i]) {
case "%d":
day = date[i];
break;
case "%m":
month = date[i] - 1;
break;
case "%Y":
year = date[i];
break;
case "%y":
year = date[i];
break;
}
++i;
}
// Create Date object from UTC since the parsed value is supposed to be
// in UTC, not local time. Also, the calendar uses UTC functions for
// date extraction.
return new Date(Date.UTC(year, month, day));
};
})();
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