/* JalaliJSCalendar - Setup Script
 * Copyright (c) 2008-2009 Ali Farhadi (http://farhadi.ir/)
 * 
 * Released under the terms of the GNU General Public License.
 * See the GPL for details (http://www.gnu.org/licenses/gpl.html).
 *
 * Based on The DHTML Calendar developed by Dynarch.com. (http://www.dynarch.com/projects/calendar/)
 * Copyright Mihai Bazon, 2002-2005 (www.bazon.net/mishoo)
 *
 *
 * This file defines helper functions for setting up the calendar.  They are
 * intended to help non-programmers get a working calendar on their site
 * quickly.  This script should not be seen as part of the calendar.  It just
 * shows you what one can do with the calendar, while in the same time
 * providing a quick and simple method for setting it up.  If you need
 * exhaustive customization of the calendar creation process feel free to
 * modify this code to suit your needs (this is recommended and much better
 * than modifying calendar.js itself).
 */

/**
 *  This function "patches" an input field (or other element) to use a calendar
 *  widget for date selection.
 *
 *  The "params" is a single object that can have the following properties:
 *
 *    prop. name      | description
 *  -------------------------------------------------------------------------------------------------
 *   inputField       | the ID of an input field to store the date
 *   displayArea      | the ID of a DIV or other element to show the date
 *   button           | ID of a button or other element that will trigger the calendar
 *   eventName        | event that will trigger the calendar, without the "on" prefix (default: "click")
 *   ifFormat         | date format that will be stored in the input field
 *   daFormat         | the date format that will be used to display the date in displayArea
 *   singleClick      | (true/false) wether the calendar is in single click mode or not (default: true)
 *   firstDay         | numeric: 0 to 6.  "0" means display Sunday first, "1" means display Monday first, etc.
 *   align            | alignment (default: "Br"); if you don't know what's this see the calendar documentation
 *   range            | array with 2 elements.  Default: [1900, 2999] -- the range of years available
 *   weekNumbers      | (true/false) if it's true (default) the calendar will display week numbers
 *   flat             | null or element ID; if not null the calendar will be a flat calendar having the parent with the given ID
 *   flatCallback     | function that receives a JS Date object and returns an URL to point the browser to (for flat calendar)
 *   disableFunc      | function that receives a JS Date object and should return true if that date has to be disabled in the calendar
 *   onSelect         | function that gets called when a date is selected.  You don't _have_ to supply this (the default is generally okay)
 *   onClose          | function that gets called when the calendar is closed.  [default]
 *   onUpdate         | function that gets called after the date is updated in the input field.  Receives a reference to the calendar.
 *   date             | the date that the calendar will be initially displayed to
 *   showsTime        | default: false; if true the calendar will include a time selector
 *   timeFormat       | the time format; can be "12" or "24", default is "12"
 *   electric         | if true (default) then given fields/date areas are updated for each move; otherwise they're updated only on close
 *   step             | configures the step of the years in drop-down boxes; default: 2
 *   position         | configures the calendar absolute position; default: null
 *   showOthers       | if "true" (but default: "false") it will show days from other months too
 *   dateType         | "gregorian" or "jalali" (default: "gregorian")
 *   ifDateType       | date type that will be stored in the input field (by default it is same as dateType)
 *   langNumbers      | if "true" it will use number characters specified in language file. 
 *   autoShowOnFocus  | if "true", popup calendars will also be shown when their input field gets focus
 *   autoFillAtStart  | if "true", inputField and displayArea will be filled on initialize.
 *
 *  None of them is required, they all have default values.  However, if you
 *  pass none of "inputField", "displayArea" or "button" you'll get a warning
 *  saying "nothing to setup".
 */
Calendar.setup = function(params) {
    function param_default(pname, def) { if (typeof params[pname] == "undefined") { params[pname] = def; } };

    param_default("inputField", null);
    param_default("displayArea", null);
    param_default("button", null);
    param_default("eventName", "dblclick");
    param_default("ifFormat", "%Y/%m/%d");
    param_default("daFormat", "%Y/%m/%d");
    param_default("singleClick", false);
    param_default("disableFunc", null);
    param_default("dateStatusFunc", params["disableFunc"]); // takes precedence if both are defined
    param_default("dateText", null);
    param_default("firstDay", null);
    param_default("align", "Br");
    param_default("range", [1000, 4000]);
    param_default("weekNumbers", true);
    param_default("flat", null);
    param_default("flatCallback", null);
    param_default("onSelect", null);
    param_default("onClose", null);
    param_default("onUpdate", null);
    param_default("date", null);
    param_default("showsTime", false);
    param_default("timeFormat", "24");
    param_default("electric", true);
    param_default("step", 1);
    param_default("position", null);
    param_default("showOthers", false);
    param_default("multiple", null);
    param_default("dateType", "jalali");
    param_default("ifDateType", null);
    param_default("langNumbers", false);
    param_default("autoShowOnFocus", false);
    param_default("autoFillAtStart", true);

    var tmp = ["inputField", "displayArea", "button"];
    for (var i in tmp) {
        if (typeof params[tmp[i]] == "string") {
            params[tmp[i]] = document.getElementById(params[tmp[i]]);
        }
    }
    if (!(params.flat || params.multiple || params.inputField || params.displayArea || params.button)) {
        alert("Calendar.setup:\n  Nothing to setup (no fields found).  Please check your code");
        return false;
    }

    if (params.autoFillAtStart) {
        if (params.inputField && (!params.inputField.value || params.inputField.value == "1300/00/00" || params.inputField.value == "1900/00/00"))
           // params.inputField.value = new Date(params.date).print(params.ifFormat, params.ifDateType || params.dateType, params.langNumbers);
        if (params.displayArea && !params.displayArea.innerHTML)
            params.displayArea.innerHTML = new Date(params.date).print(params.ifFormat, params.ifDateType || params.dateType, params.langNumbers);
    }

    function onSelect(cal) {
        var p = cal.params;
        var update = (cal.dateClicked || p.electric);
        if (update && p.inputField) {

            //p.inputField.value = cal.date.print(cal.dateFormat, p.ifDateType || cal.dateType, cal.langNumbers);


            /* Telerik TextBox Anatomy : 
            
            [Telerik]                  [HTML]
            ---------------     -----------------------------
            <radTexbox..../>     <Span id=".........._wrapper">
            <input id="....._text" ></input>
            <input id="....." ></input>
            <input id="....._value" ></input>
            </span>
                                    
            Note: There is not problem in IE, Changes has been made for handeling the problem in the other browsers
           
            */
            var selectedDate = cal.date.print(cal.dateFormat, p.ifDateType || cal.dateType, cal.langNumbers);
            var objID = params.inputField.id;
            var actualObjId = objID.replace("_text", "");
            var Object = $find(actualObjId);
            if (Object) {
                Object.set_value(selectedDate);
            }


            if (typeof p.inputField.onchange == "function")
                p.inputField.onchange();
        }
        if (update && p.displayArea)
            p.displayArea.innerHTML = cal.date.print(p.daFormat, cal.dateType, cal.langNumbers);
        if (update && typeof p.onUpdate == "function")
            p.onUpdate(cal);
        if (update && p.flat) {
            if (typeof p.flatCallback == "function")
                p.flatCallback(cal);
        }
        if (update && p.singleClick && cal.dateClicked)
            cal.callCloseHandler();
    };
    if (!params.flat) {
        var cal = new Calendar(params.firstDay,
									params.date,
									params.onSelect || onSelect,
									params.onClose || function(cal) { cal.hide(); });

    } else {
        if (typeof params.flat == "string")
            params.flat = document.getElementById(params.flat);
        if (!params.flat) {
            alert("Calendar.setup:\n  Flat specified but can't find parent.");
            return false;
        }
        var cal = new Calendar(params.firstDay, params.date, params.onSelect || onSelect);

        if (params.inputField && typeof params.inputField.value == "string" && params.inputField.value) {
            cal.parseDate(params.inputField.value, null, params.ifDateType || cal.dateType);
        }
    }
    cal.showsTime = params.showsTime;
    cal.time24 = (params.timeFormat == "24");
    cal.weekNumbers = params.weekNumbers;
    cal.dateType = params.dateType;
    cal.langNumbers = params.langNumbers;
    cal.showsOtherMonths = params.showOthers;
    cal.yearStep = params.step;
    cal.setRange(params.range[0], params.range[1]);
    cal.params = params;
    cal.setDateStatusHandler(params.dateStatusFunc);
    cal.getDateText = params.dateText;
    cal.setDateFormat(params.inputField ? params.ifFormat : params.daFormat);
    if (params.multiple) {
        cal.multiple = {};
        for (var i = params.multiple.length; --i >= 0; ) {
            var d = params.multiple[i];
            var ds = d.print("%Y%m%d", cal.dateType, cal.langNumbers);
            cal.multiple[ds] = d;
        }
    }

    if (!params.flat) {
        var triggerEl = params.button || params.displayArea || params.inputField;
        triggerEl["on" + params.eventName] = function() {
            if (!cal.element) cal.create();
            var dateEl = params.inputField || params.displayArea;
            var dateType = params.inputField ? params.ifDateType || cal.dateType : cal.dateType;
            if (dateEl && (dateEl.value || dateEl.innerHTML)) params.date = Date.parseDate(dateEl.value || dateEl.innerHTML, cal.dateFormat, dateType);
            cal.setDate(params.date);
            if (params.date && (params.inputField.value == "1300/00/00" || params.inputField.value == "1900/00/00")) cal.setDate(new Date);
            cal.refresh();
            if (!params.position)
                cal.showAtElement(params.button || params.displayArea || params.inputField, params.align);
            else
                cal.showAt(params.position[0], params.position[1]);
            return false;
        };

        if (params.autoShowOnFocus && params.inputField) {
            params.inputField["onfocus"] = triggerEl["on" + params.eventName];
        };
    } else {
        cal.create(params.flat);
        cal.show();
    }

    var strCulture = readCooki('Culture');

    if (strCulture == 'en')
        cal.dateType = 'gregorian';

    return cal;
};

function readCooki(name) {
    var ca = document.cookie.split('&');
    for (var i = 0; i < ca.length; i++) {
        {
            c = ca[2];
            if (c != null) {
                cb = c.split('=')
                while (cb[0] == name) {
                    resualt = cb[1];
                    break;
                }
                return resualt;
            }
            else {
                return '';
            }
        }
    }
    
    return null;
}

