201 lines
8.6 KiB
JavaScript
201 lines
8.6 KiB
JavaScript
/* Copyright Mihai Bazon, 2002, 2003 | http://dynarch.com/mishoo/
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* ---------------------------------------------------------------------------
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*
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* The DHTML Calendar
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*
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* Details and latest version at:
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* http://dynarch.com/mishoo/calendar.epl
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*
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* This script is distributed under the GNU Lesser General Public License.
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* Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
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*
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* This file defines helper functions for setting up the calendar. They are
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* intended to help non-programmers get a working calendar on their site
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* quickly. This script should not be seen as part of the calendar. It just
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* shows you what one can do with the calendar, while in the same time
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* providing a quick and simple method for setting it up. If you need
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* exhaustive customization of the calendar creation process feel free to
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* modify this code to suit your needs (this is recommended and much better
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* than modifying calendar.js itself).
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*/
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// $Id$
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/**
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* This function "patches" an input field (or other element) to use a calendar
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* widget for date selection.
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*
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* The "params" is a single object that can have the following properties:
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*
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* prop. name | description
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* -------------------------------------------------------------------------------------------------
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* inputField | the ID of an input field to store the date
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* displayArea | the ID of a DIV or other element to show the date
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* button | ID of a button or other element that will trigger the calendar
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* eventName | event that will trigger the calendar, without the "on" prefix (default: "click")
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* ifFormat | date format that will be stored in the input field
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* daFormat | the date format that will be used to display the date in displayArea
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* singleClick | (true/false) wether the calendar is in single click mode or not (default: true)
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* firstDay | numeric: 0 to 6. "0" means display Sunday first, "1" means display Monday first, etc.
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* align | alignment (default: "Br"); if you don't know what's this see the calendar documentation
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* range | array with 2 elements. Default: [1900, 2999] -- the range of years available
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* weekNumbers | (true/false) if it's true (default) the calendar will display week numbers
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* flat | null or element ID; if not null the calendar will be a flat calendar having the parent with the given ID
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* flatCallback | function that receives a JS Date object and returns an URL to point the browser to (for flat calendar)
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* disableFunc | function that receives a JS Date object and should return true if that date has to be disabled in the calendar
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* onSelect | function that gets called when a date is selected. You don't _have_ to supply this (the default is generally okay)
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* onClose | function that gets called when the calendar is closed. [default]
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* onUpdate | function that gets called after the date is updated in the input field. Receives a reference to the calendar.
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* date | the date that the calendar will be initially displayed to
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* showsTime | default: false; if true the calendar will include a time selector
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* timeFormat | the time format; can be "12" or "24", default is "12"
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* electric | if true (default) then given fields/date areas are updated for each move; otherwise they're updated only on close
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* step | configures the step of the years in drop-down boxes; default: 2
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* position | configures the calendar absolute position; default: null
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* cache | if "true" (but default: "false") it will reuse the same calendar object, where possible
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* showOthers | if "true" (but default: "false") it will show days from other months too
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*
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* None of them is required, they all have default values. However, if you
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* pass none of "inputField", "displayArea" or "button" you'll get a warning
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* saying "nothing to setup".
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*/
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Calendar.setup = function (params) {
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function param_default(pname, def) { if (typeof params[pname] == "undefined") { params[pname] = def; } };
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param_default("inputField", null);
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param_default("displayArea", null);
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param_default("button", null);
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param_default("eventName", "click");
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param_default("ifFormat", "%Y/%m/%d");
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param_default("daFormat", "%Y/%m/%d");
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param_default("singleClick", true);
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param_default("disableFunc", null);
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param_default("dateStatusFunc", params["disableFunc"]); // takes precedence if both are defined
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param_default("dateText", null);
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param_default("firstDay", null);
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param_default("align", "Br");
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param_default("range", [1900, 2999]);
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param_default("weekNumbers", true);
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param_default("flat", null);
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param_default("flatCallback", null);
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param_default("onSelect", null);
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param_default("onClose", null);
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param_default("onUpdate", null);
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param_default("date", null);
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param_default("showsTime", false);
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param_default("timeFormat", "24");
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param_default("electric", true);
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param_default("step", 2);
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param_default("position", null);
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param_default("cache", false);
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param_default("showOthers", false);
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param_default("multiple", null);
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var tmp = ["inputField", "displayArea", "button"];
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for (var i in tmp) {
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if (typeof params[tmp[i]] == "string") {
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params[tmp[i]] = document.getElementById(params[tmp[i]]);
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}
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}
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if (!(params.flat || params.multiple || params.inputField || params.displayArea || params.button)) {
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alert("Calendar.setup:\n Nothing to setup (no fields found). Please check your code");
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return false;
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}
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function onSelect(cal) {
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var p = cal.params;
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var update = (cal.dateClicked || p.electric);
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if (update && p.inputField) {
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p.inputField.value = cal.date.print(p.ifFormat);
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if (typeof p.inputField.onchange == "function")
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p.inputField.onchange();
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}
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if (update && p.displayArea)
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p.displayArea.innerHTML = cal.date.print(p.daFormat);
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if (update && typeof p.onUpdate == "function")
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p.onUpdate(cal);
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if (update && p.flat) {
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if (typeof p.flatCallback == "function")
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p.flatCallback(cal);
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}
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if (update && p.singleClick && cal.dateClicked)
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cal.callCloseHandler();
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};
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if (params.flat != null) {
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if (typeof params.flat == "string")
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params.flat = document.getElementById(params.flat);
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if (!params.flat) {
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alert("Calendar.setup:\n Flat specified but can't find parent.");
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return false;
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}
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var cal = new Calendar(params.firstDay, params.date, params.onSelect || onSelect);
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cal.showsOtherMonths = params.showOthers;
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cal.showsTime = params.showsTime;
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cal.time24 = (params.timeFormat == "24");
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cal.params = params;
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cal.weekNumbers = params.weekNumbers;
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cal.setRange(params.range[0], params.range[1]);
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cal.setDateStatusHandler(params.dateStatusFunc);
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cal.getDateText = params.dateText;
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if (params.ifFormat) {
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cal.setDateFormat(params.ifFormat);
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}
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if (params.inputField && typeof params.inputField.value == "string") {
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cal.parseDate(params.inputField.value);
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}
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cal.create(params.flat);
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cal.show();
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return false;
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}
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var triggerEl = params.button || params.displayArea || params.inputField;
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triggerEl["on" + params.eventName] = function() {
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var dateEl = params.inputField || params.displayArea;
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var dateFmt = params.inputField ? params.ifFormat : params.daFormat;
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var mustCreate = false;
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var cal = window.calendar;
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if (dateEl)
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params.date = Date.parseDate(dateEl.value || dateEl.innerHTML, dateFmt);
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if (!(cal && params.cache)) {
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window.calendar = cal = new Calendar(params.firstDay,
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params.date,
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params.onSelect || onSelect,
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params.onClose || function(cal) { cal.hide(); });
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cal.showsTime = params.showsTime;
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cal.time24 = (params.timeFormat == "24");
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cal.weekNumbers = params.weekNumbers;
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mustCreate = true;
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} else {
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if (params.date)
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cal.setDate(params.date);
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cal.hide();
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}
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if (params.multiple) {
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cal.multiple = {};
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for (var i = params.multiple.length; --i >= 0;) {
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var d = params.multiple[i];
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var ds = d.print("%Y%m%d");
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cal.multiple[ds] = d;
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}
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}
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cal.showsOtherMonths = params.showOthers;
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cal.yearStep = params.step;
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cal.setRange(params.range[0], params.range[1]);
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cal.params = params;
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cal.setDateStatusHandler(params.dateStatusFunc);
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cal.getDateText = params.dateText;
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cal.setDateFormat(dateFmt);
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if (mustCreate)
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cal.create();
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cal.refresh();
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if (!params.position)
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cal.showAtElement(params.button || params.displayArea || params.inputField, params.align);
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else
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cal.showAt(params.position[0], params.position[1]);
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return false;
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};
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return cal;
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};
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