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diff --git a/static/admin/js/core.js b/static/admin/js/core.js
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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]);
+
+// Cross-browser event handlers.
+function addEvent(obj, evType, fn) {
+ 'use strict';
+ if (obj.addEventListener) {
+ obj.addEventListener(evType, fn, false);
+ return true;
+ } else if (obj.attachEvent) {
+ var r = obj.attachEvent("on" + evType, fn);
+ return r;
+ } else {
+ return false;
+ }
+}
+
+function removeEvent(obj, evType, fn) {
+ 'use strict';
+ if (obj.removeEventListener) {
+ obj.removeEventListener(evType, fn, false);
+ return true;
+ } else if (obj.detachEvent) {
+ obj.detachEvent("on" + evType, fn);
+ return true;
+ } else {
+ return false;
+ }
+}
+
+function cancelEventPropagation(e) {
+ 'use strict';
+ if (!e) {
+ e = window.event;
+ }
+ e.cancelBubble = true;
+ if (e.stopPropagation) {
+ e.stopPropagation();
+ }
+}
+
+// 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 http://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() {
+ var hours = this.getHours();
+ if (hours === 0) {
+ return 12;
+ }
+ else {
+ return hours <= 12 ? hours : hours - 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.getHourMinute = function() {
+ return this.getTwoDigitHour() + ':' + this.getTwoDigitMinute();
+ };
+
+ Date.prototype.getHourMinuteSecond = function() {
+ return this.getTwoDigitHour() + ':' + this.getTwoDigitMinute() + ':' + this.getTwoDigitSecond();
+ };
+
+ 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.pad_left = function(pad_length, pad_string) {
+ var new_string = this;
+ for (var i = 0; new_string.length < pad_length; i++) {
+ new_string = pad_string + new_string;
+ }
+ return new_string;
+ };
+
+ 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));
+ };
+
+})();
+// ----------------------------------------------------------------------------
+// Get the computed style for and element
+// ----------------------------------------------------------------------------
+function getStyle(oElm, strCssRule) {
+ 'use strict';
+ var strValue = "";
+ if(document.defaultView && document.defaultView.getComputedStyle) {
+ strValue = document.defaultView.getComputedStyle(oElm, "").getPropertyValue(strCssRule);
+ }
+ else if(oElm.currentStyle) {
+ strCssRule = strCssRule.replace(/\-(\w)/g, function(strMatch, p1) {
+ return p1.toUpperCase();
+ });
+ strValue = oElm.currentStyle[strCssRule];
+ }
+ return strValue;
+}