/*  Copyright Mihai Bazon, 2002, 2003  |  http://dynarch.com/mishoo/
 * ---------------------------------------------------------------------------
 *
 * The DHTML Calendar
 *
 * Details and latest version at:
 * http://dynarch.com/mishoo/calendar.epl
 *
 * This script is distributed under the GNU Lesser General Public License.
 * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
 *
 * 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).
 */

// $Id$

/**
 *  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
 *   cache         | if "true" (but default: "false") it will reuse the same calendar object, where possible
 *   showOthers    | if "true" (but default: "false") it will show days from other months too
 *
 *  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".
 */
/**NGOrbis ADDITION START*/
function setHidden(prefix,syear){
        var field_day = document.getElementById(prefix+"_day");
        syear=syear-1;
        var field_month = document.getElementById(prefix+"_month");
        var field_year = document.getElementById(prefix+"_year");
        var field_min = document.getElementById(prefix+"_min");
        var field_hour = document.getElementById(prefix+"_hour");

		var stext= document.getElementById(prefix);
		if( 
			field_day.selectedIndex == 0 || 
			field_month.selectedIndex == 0 || 
			field_year.selectedIndex == 0 || 
			( field_min && field_min.selectedIndex == 0 ) || 
			( field_hour && field_hour.selectedIndex == 0 ) 
		) {
			stext.value = "";
			return;
		}
		
        stext.value="";
		if(field_day.selectedIndex<10)
			stext.value+="0";
		stext.value+=field_day.selectedIndex+".";
		if(field_month.selectedIndex<10)
			stext.value+="0";
		stext.value+=field_month.selectedIndex+".";
		stext.value+=(field_year.selectedIndex+syear)+" ";
        if(field_hour){
            if(field_hour.selectedIndex==24)
                stext.value+="00";
            else if(field_hour.selectedIndex<10)
                stext.value+="0"+field_hour.selectedIndex;
            else
                stext.value+=field_hour.selectedIndex;
        }
        if(field_min){
    		if(field_min.selectedIndex==60)
	    		stext.value+=":00";
		    else if(field_min.selectedIndex<10)
			    stext.value+=":0"+field_min.selectedIndex;
		    else
			    stext.value+=":0"+field_min.selectedIndex;
        }
}
/**NGOrbis ADDITION END*/
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",      "click");
	param_default("ifFormat",       "%Y/%m/%d");
	param_default("daFormat",       "%Y/%m/%d");
	param_default("singleClick",    true);
	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",          [1900, 2999]);
	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",           2);
	param_default("position",       null);
	param_default("cache",          false);
	param_default("showOthers",     false);
	param_default("multiple",       null);

	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;
	}

	function onSelect(cal) {
		var p = cal.params;
		var update = (cal.dateClicked || p.electric);
		if (update && p.flat) {
			if (typeof p.flatCallback == "function")
				p.flatCallback(cal);
			else
				alert("No flatCallback given -- doing nothing.");
			return false;
		}
		if (update && p.inputField) {
			p.inputField.value = cal.date.print(p.ifFormat);
			if (typeof p.inputField.onchange == "function")
				p.inputField.onchange();
		}
		if (update && p.displayArea)
			p.displayArea.innerHTML = cal.date.print(p.daFormat);
		if (update && p.singleClick && cal.dateClicked)
			cal.callCloseHandler();
		if (update && typeof p.onUpdate == "function")
			p.onUpdate(cal);
	};

	if (params.flat != null) {
		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);
		cal.showsOtherMonths = params.showOthers;
		cal.showsTime = params.showsTime;
		cal.time24 = (params.timeFormat == "24");
		cal.params = params;
		cal.weekNumbers = params.weekNumbers;
		cal.setRange(params.range[0], params.range[1]);
		cal.setDateStatusHandler(params.dateStatusFunc);
		cal.getDateText = params.dateText;
		if (params.ifFormat) {
			cal.setDateFormat(params.ifFormat);
		}
		if (params.inputField && typeof params.inputField.value == "string") {
			cal.parseDate(params.inputField.value);
		}
		cal.create(params.flat);
		cal.show();
		return false;
	}

	var triggerEl = params.button || params.displayArea || params.inputField;
	triggerEl["on" + params.eventName] = function() {
		var dateEl = params.inputField || params.displayArea;
		var dateFmt = params.inputField ? params.ifFormat : params.daFormat;
		var mustCreate = false;
		var cal = window.calendar;
		if (!(cal && params.cache)) {
			window.calendar = cal = new Calendar(params.firstDay,
							     params.date,
							     params.onSelect || onSelect,
							     params.onClose || function(cal) { cal.hide(); });
			cal.showsTime = params.showsTime;
			cal.time24 = (params.timeFormat == "24");
			cal.weekNumbers = params.weekNumbers;
			mustCreate = true;
		} else {
			if (params.date)
				cal.setDate(params.date);
			cal.hide();
		}
		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.multiple[ds] = d;
			}
		}
		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(dateFmt);
		if (mustCreate)
			cal.create();
		if (dateEl)
			cal.parseDate(dateEl.value || dateEl.innerHTML);
		cal.refresh();
		if (params.position == null || !params.position)
			cal.showAtElement(params.button || params.displayArea || params.inputField, params.align);
		else
			cal.showAt(params.position[0], params.position[1]);
		return false;
	};

	return cal;
};

/**
 * 'str' parametresindeki string tarih verisi, Date nesnesine donusturulur.
 * str: Date nesnesine kurulacak tarih verisi
 * fmt: Bicim, null ise '%Y-%m-%d' bicimi kullanilir.
 */ 
function _co_parseDate(str, fmt) {
		var date=new Date();
		var y = 0;
		var m = -1;
		var d = 0;
		var a = str.split(/\W+/);
		if (!fmt) {
			fmt = '%Y-%m-%d';
		}
		var b = fmt.match(/%./g);
		var i = 0, j = 0;
		var hr = 0;
		var min = 0;
		for (i = 0; i < a.length; ++i) {
			if (!a[i])
				continue;
			switch (b[i]) {
			    case "%d":
			    case "%e":
				d = parseInt(a[i], 10);
				break;

			    case "%m":
				m = parseInt(a[i], 10) - 1;
				break;

			    case "%Y":
			    case "%y":
				y = parseInt(a[i], 10);
				(y < 100) && (y += (y > 29) ? 1900 : 2000);
				break;

			    case "%b":
			    case "%B":
				for (j = 0; j < 12; ++j) {
					if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
				}
				break;

			    case "%H":
			    case "%I":
			    case "%k":
			    case "%l":
				hr = parseInt(a[i], 10);
				break;

			    case "%P":
			    case "%p":
				if (/pm/i.test(a[i]) && hr < 12)
					hr += 12;
				break;

			    case "%M":
				min = parseInt(a[i], 10);
				break;
			}
		}
		if (y != 0 && m != -1 && d != 0) {
			date=new Date(y, m, d, hr, min, 0);
			return date;
		}
		y = 0; m = -1; d = 0;
		for (i = 0; i < a.length; ++i) {
			if (a[i].search(/[a-zA-Z]+/) != -1) {
				var t = -1;
				for (j = 0; j < 12; ++j) {
					if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; }
				}
				if (t != -1) {
					if (m != -1) {
						d = m+1;
					}
					m = t;
				}
			} else if (parseInt(a[i], 10) <= 12 && m == -1) {
				m = a[i]-1;
			} else if (parseInt(a[i], 10) > 31 && y == 0) {
				y = parseInt(a[i], 10);
				(y < 100) && (y += (y > 29) ? 1900 : 2000);
			} else if (d == 0) {
				d = a[i];
			}
		}
		if (y == 0) {
			var today = new Date();
			y = today.getFullYear();
		}
		if (m != -1 && d != 0) {
			date=new Date(y, m, d, hr, min, 0);
		}

		return date;
	};