/**
 * DatePickerControl.v.1.1.7
 *
 * Transform your input text control into a date-picker control.
 *
 * By Hugo Ortega_Hernandez - hugorteg _no_spam_ at gmail dot com
 *
 * Last version of this code: http://dali.mty.itesm.mx/~hugo/js/datepickercontrol/
 *
 * Features:
 *   + Automatic input control conversion with a single attribute
 *     in the 'input' tag or a special 'id' attribute format.
 *   + Multiple date formats.
 *   + Layered calendar, without pop-up window.
 *   + Mouse and keyboard navigation.
 *   + Variable first day of week.
 *   + Min and Max dates.
 *   + Easy i18n.
 *   + CSS support.
 *
 * License: LGPL http://www.gnu.org/licenses/lgpl.html
 * (i.e., use this code as you wish, just keep it free)
 * Provided as is, without any warranty.
 * Feel free to use this code, but don't remove this disclaimer please.
 *
 * If you're going to use this library, please send me an email, and
 * would be great if you include a photo of your city :)
 * (se habla español)
 *
 * Credits:
 *
 * Functions to calculate days of a year and to generate the calendar code by:
 *    Kedar R. Bhave - softricks at hotmail dot com
 *    http://www.softricks.com
 *    = Modified by Hugo Ortega_H:
 *      + CSS style
 *      + Remove non useful code (original version with pop-up window)
 *      + Clean job :-) (so hard!)
 *      + Add support for layered calendar
 *      + Many other stuff.
 *
 * Other code functions and lines to calculate objects' size & location by:
 *    Mircho Mirev - mo at momche dot net
 *
 * First day of week code by:
 *    Massimiliano Ciancio  -  massimiliano at ciancio dot net
 *
 *
 *                                     Veracruz & Monterrey, Mexico, 2005-2009.
 */


//-----------------------------------------------------------------------------
// Some parameters for style and behaviour...
// Is better to use global parameters to avoid problems with updates,
// but if you want to override default values, here are the variables :-)
// (see index.html to see how to use global parameters)

DatePickerControl.defaultFormat   = "YYYY-MM-DD";
DatePickerControl.submitFormat    = "";
DatePickerControl.offsetY         = 1;
DatePickerControl.offsetX         = 0;
DatePickerControl.todayText       = "Today";
DatePickerControl.buttonTitle     = "Open calendar...";
DatePickerControl.buttonPosition  = "in";  // or "out"
DatePickerControl.buttonOffsetX   = 0;     // See below for some considerations about
DatePickerControl.buttonOffsetY   = 0;     // that values (for IE)
DatePickerControl.closeOnTodayBtn = true;  // close if today button is pressed?
DatePickerControl.defaultTodaySel = true;  // If true and content is blank, today date will be selected
DatePickerControl.autoShow        = false; // Auto show the calendar when the input grab the focus.
DatePickerControl.firstWeekDay    = 0;     // First day of week: 0=Sunday, 1=Monday, ..., 6=Saturday
DatePickerControl.weekend         = [0,6]; // Sunday and Saturday as weekend (maybe a 3-day weekend in France :D , I love it!...)
DatePickerControl.weekNumber      = false; // Display or not the week number


DatePickerControl.Months =
//	["Enero", "Febrero", "Marzo", "Abril", "Mayo", "Junio", "Julio", "Agosto", "Septiembre", "Octubre", "Noviembre", "Diciembre"];
	["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
//	["Janvier", "Février", "Mars", "Avril", "Mai", "Juin", "Juillet", "Août", "Septembre", "Octobre", "Novembre", "Décembre"];
//	["Januar", "Februar", "März", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember"];
//	["Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio", "Giugno", "Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre"];

DatePickerControl.Days =
//	["Dom", "Lun", "Mar", "Mié", "Jue", "Vie", "Sáb"];
	["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
//	["Dim", "Lun", "Mar", "Mer", "Jeu", "Ven", "Sam"];
//	["Son", "Mon", "Die", "Mit", "Don", "Fre", "Sam"];
//	["Dom", "Lun", "Mar", "Mer", "Gio", "Ven", "Sab"];


//-----------------------------------------------------------------------------
// Specific patches

DatePickerControl.useTrickyBG = false;
// Some people ask me about IE strange behaviour... well, here's the patch
// IE returns object position with one pixel more
// <sarcasm>Patches for IE?, I can't believe!</sarcasm>
// There area a LOT of problems with IE, because if you change, for example,
// the body margin, all control's positions are wrong... agghh... I hate IE...
// this is why all my projects have a technical requirement: Mozilla family :-)
if (navigator.userAgent.indexOf("MSIE") > 1){
	DatePickerControl.useTrickyBG   = true;
	DatePickerControl.offsetY       = 0;
	DatePickerControl.offsetX       = -1;
	DatePickerControl.buttonOffsetX = -4;
	DatePickerControl.buttonOffsetY = -2;
	// but if document have xhtml dtd, things are different... :S
	if (document.getElementsByTagName("html")[0].getAttribute("xmlns") != null){
		DatePickerControl.offsetY       = 16;
		DatePickerControl.offsetX       = 10;
		DatePickerControl.buttonOffsetX = 8;
		DatePickerControl.buttonOffsetY = 14;
	}
}

//-----------------------------------------------------------------------------
// Some constants and internal stuff

DatePickerControl.editIdPrefix    = "DPC_";          // The prefix for edit's id
DatePickerControl.displayed       = false;           // Is the calendar layer displayed?
DatePickerControl.HIDE_TIMEOUT    = 200;             // Time in ms for hide the calendar layer
DatePickerControl.hideTimeout     = null;            // The timeout identifier
DatePickerControl.buttonIdPrefix  = "CALBUTTON";     // The prefix for the calendar button's id
DatePickerControl.dayIdPrefix     = "CALDAY";        // The prefix for the calendar days frames' id
DatePickerControl.currentDay      = 1;               // The current day of current month of current year :-)
DatePickerControl.originalValue   = "";              // The original value of edit control
DatePickerControl.calFrameId      = "calendarframe"; // The id for the calendar layer
DatePickerControl.submitByKey     = false;           // Is submitting by keyboard?
DatePickerControl.dayOfWeek       = 0;               // The current day of current week ...
DatePickerControl.firstFocused    = false;           // Is the first time that the current edit control is focused?
DatePickerControl.hideCauseBlur   = false;           // Was the calendar close by onblur event?
DatePickerControl.onSubmitAsigned = false;           // Is form's onSubmit event asigned?
DatePickerControl.minDate         = null;            // The minimum date for the current datepicker
DatePickerControl.maxDate         = null;            // The maximum date for the current datepicker
DatePickerControl.DOMonth         = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]; // Non-leap year month days
DatePickerControl.lDOMonth        = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]; // Leap year month days


//-----------------------------------------------------------------------------
// The fun :-)


//-----------------------------------------------------------------------------
/**
 * Constructor (or something like that).
 */
function DatePickerControl()
{
}


//-----------------------------------------------------------------------------
/**
 * Creates the calendar's div element and the button into the input-texts with
 * attibute datepicker="true" or id="DPC_foo_[format]"
 */
DatePickerControl.init = function()
{
	// try to create the DatePickerControl.container:
	if (!document.getElementById("CalendarPickerControl")){

		// but first, take a look for global parameters:
		this.setGlobalParams();

		this.calBG = null;
		if (this.useTrickyBG){
			// Creates a tricky bg to hide the select controls (IE bug).
			// We use a iframe element, because is one of the elements that can
			// stay on top of select controls.
			// I don't like this solution, but IE is a pseudo-browser for developers
			this.calBG                = document.createElement("iframe");
			this.calBG.id             = "CalendarPickerControlBG";
			this.calBG.style.zIndex   = "49999"; // below calcontainer
			this.calBG.style.position = "absolute";
			this.calBG.style.display  = "none";
			this.calBG.style.border   = "0px solid transparent";
			document.body.appendChild(this.calBG);
		}
		this.calContainer                = document.createElement("div");
		this.calContainer.id             = "CalendarPickerControl";
		this.calContainer.style.zIndex   = "50000";
		this.calContainer.style.position = "absolute";
		this.calContainer.style.display  = "none";
		document.body.appendChild(this.calContainer);

		if (this.calContainer.addEventListener){
			this.calContainer.addEventListener("click", DPC_onContainerClick, false);
			window.addEventListener("resize", DPC_onWindowResize, false);
		}
		else if (this.calContainer.attachEvent){
			this.calContainer.attachEvent("onclick", DPC_onContainerClick);
			window.attachEvent("onresize", DPC_onWindowResize);
		}
	}
	
	// looking for input controls that will be transformed into DatePickerControl's.
	var inputControls = document.getElementsByTagName("input");
	var inputsLength  = inputControls.length;
	for (i=0; i<inputsLength; i++){
		if (inputControls[i].type.toLowerCase() == "text"){
			var editctrl  = inputControls[i];
			var dpcattr   = editctrl.getAttribute("datepicker");
			var setEvents = false;
			// if datepicker pseudo-attribute:
			if (dpcattr != null && dpcattr == "true"){
				if (editctrl.id){
					if (!this.createButton(editctrl, false)) continue;
					setEvents = true;
				}
				else{
					alert("Attribute 'id' is mandatory for DatePickerControl.");
				}
			}
			// if fomated id attr:
			else if (editctrl.id && editctrl.id.indexOf(this.editIdPrefix) == 0){
				if (!this.createButton(editctrl, true)) continue;
				setEvents = true;
			}
			editctrl.setAttribute("isdatepicker", "true");
			// add the events:
			if (setEvents){
				if(editctrl.addEventListener){
					editctrl.addEventListener("keyup", DPC_onEditControlKeyUp, false);
					editctrl.addEventListener("keydown", DPC_onEditControlKeyDown, false);
					editctrl.addEventListener("keypress", DPC_onEditControlKeyPress, false);
					editctrl.addEventListener("blur", DPC_onEditControlBlur, false);
					editctrl.addEventListener("focus", DPC_onEditControlFocus, false);
					editctrl.addEventListener("change", DPC_onEditControlChange, false);
				}
				else if (editctrl.attachEvent){
					editctrl.attachEvent("onkeyup", DPC_onEditControlKeyUp);
					editctrl.attachEvent("onkeydown", DPC_onEditControlKeyDown);
					editctrl.attachEvent("onkeypress", DPC_onEditControlKeyPress);
					editctrl.attachEvent("onblur", DPC_onEditControlBlur);
					editctrl.attachEvent("onfocus", DPC_onEditControlFocus);
					editctrl.attachEvent("onchange", DPC_onEditControlChange);
				}
				var theForm = editctrl.form;
				if (!this.onSubmitAsigned && theForm){
					this.onSubmitAsigned = true;
					theForm.submitOrig = theForm.submit;
					theForm.submit = DPC_formSubmit;
					if (theForm.addEventListener){
						theForm.addEventListener('submit', DPC_onFormSubmit, false);
					}
					else if (theForm.attachEvent){
						theForm.attachEvent('onsubmit', DPC_onFormSubmit);
					}
				}
			}
		}
	}
}


//-----------------------------------------------------------------------------
/**
 * Set the global parameters.
 */
DatePickerControl.setGlobalParams = function()
{
	var obj = document.getElementById("DPC_DEFAULT_FORMAT");
	if (obj) this.defaultFormat = obj.value;

	obj = document.getElementById("DPC_SUBMIT_FORMAT");
	if (obj) this.submitFormat = obj.value;
	
	obj = document.getElementById("DPC_FIRST_WEEK_DAY");
	if (obj) this.firstWeekDay = (obj.value < 0 || obj.value > 6) ? 0 : parseInt(obj.value);
	
	obj = document.getElementById("DPC_WEEKEND_DAYS");
	if (obj) eval("this.weekend = " + obj.value);
	
	obj = document.getElementById("DPC_AUTO_SHOW");
	if (obj) this.autoShow = obj.value == "true";
	
	obj = document.getElementById("DPC_DEFAULT_TODAY");
	if (obj) this.defaultTodaySel = obj.value == "true";
	
	obj = document.getElementById("DPC_CALENDAR_OFFSET_X");
	if (obj) this.offsetX = parseInt(obj.value);
	
	obj = document.getElementById("DPC_CALENDAR_OFFSET_Y");
	if (obj) this.offsetY = parseInt(obj.value);
	
	obj = document.getElementById("DPC_TODAY_TEXT");
	if (obj) this.todayText = obj.value;
	
	obj = document.getElementById("DPC_BUTTON_TITLE");
	if (obj) this.buttonTitle = obj.value;
	
	obj = document.getElementById("DPC_BUTTON_POSITION");
	if (obj) this.buttonPosition = obj.value;
	
	obj = document.getElementById("DPC_BUTTON_OFFSET_X");
	if (obj) this.buttonOffsetX = parseInt(obj.value);
	
	obj = document.getElementById("DPC_BUTTON_OFFSET_Y");
	if (obj) this.buttonOffsetY = parseInt(obj.value);
	
	obj = document.getElementById("DPC_WEEK_NUMBER");
	if (obj) this.weekNumber = obj.value == "true";
	
	obj = document.getElementById("DPC_MONTH_NAMES");
	if (obj) eval("this.Months = " + obj.value);
	
	obj = document.getElementById("DPC_DAY_NAMES");
	if (obj) eval("this.Days = " + obj.value);
}


//-----------------------------------------------------------------------------
/**
 * Wrapper for init()
 */
function DPC_autoInit()
{
	DatePickerControl.init();
}

if (window.addEventListener){
	window.addEventListener("load", DPC_autoInit, false);
}
else if (window.attachEvent){
	window.attachEvent("onload", DPC_autoInit);
}


//-----------------------------------------------------------------------------
/**
 * Creates the calendar button for a text-input control and assign some attributes.
 * @param input The associated text-input to create the button.
 * @param useId Specify if you want to use the Id of input control to obtain the format
 * @return true is the control has been created, otherwise false
 */
DatePickerControl.createButton = function(input, useId)
{
	var newid = this.buttonIdPrefix + input.id;
	if (document.getElementById(newid)) return false; // if exists previously....
	// set the date format
	var fmt = "";
	if (useId){ // get the format from the control's id
		var arr = input.id.split("_");
		var last = arr[arr.length-1];
		// a not so beauty validation :S
		if ((last.indexOf("-")>0 || last.indexOf("/")>0 || last.indexOf(".")>0) && 
		     last.indexOf("YY") >= 0 && last.indexOf("D") >= 0 && last.indexOf("M") >= 0){ // is a format
			fmt = last;
		}
		else{
			fmt = this.defaultFormat;
		}
	}
	else{ // get the format from pseudo-attibute
		fmt = input.getAttribute("datepicker_format");
		if (!fmt){
			fmt = this.defaultFormat;
		}
	}
	input.setAttribute("datepicker_format", fmt);
	input.setAttribute("maxlength", fmt.length);
	
	// some new methods for datepickers
	input.setMinDate = function(d){this.setAttribute("datepicker_min", d);}
	input.setMaxDate = function(d){this.setAttribute("datepicker_max", d);}
	
	// Creates the button
	/*
	var calButton = document.createElement("div");
	calButton.id = newid;
	calButton.title = this.buttonTitle;
	// Set some attributes to remember the text-input associated
	// with this button and its format:
	calButton.setAttribute("datepicker_inputid", input.id);
	calButton.setAttribute("datepicker_format", fmt);
	// Add the event listeners:
	if(calButton.addEventListener){
		calButton.addEventListener("click", DPC_onButtonClick, false);
	}
	else if (calButton.attachEvent){
		calButton.attachEvent("onclick", DPC_onButtonClick);
	}
	// add first to have access to the size properties
	// if is possible, add to the input's parent node
	// just in case we need to hide the button automatically
	if (input.parentNode){
		input.parentNode.appendChild(calButton);
	}
	else{
		document.body.appendChild(calButton);
	}
	// Set the style and position:
	var nTop               = getObject.getSize("offsetTop", input);
	var nLeft              = getObject.getSize("offsetLeft", input);
	calButton.className    = "calendarbutton";
	calButton.style.zIndex = 10000;
	calButton.style.cursor = "pointer";
	calButton.style.top    = (nTop + Math.floor((input.offsetHeight-calButton.offsetHeight)/2) + this.buttonOffsetY) + "px";
	var btnOffX            = Math.floor((input.offsetHeight - calButton.offsetHeight) / 2);
	if (this.buttonPosition == "in"){
		calButton.style.left = (nLeft + input.offsetWidth - calButton.offsetWidth - btnOffX + this.buttonOffsetX) + "px";
	}
	else{ // "out"
		calButton.style.left = (nLeft + input.offsetWidth + btnOffX + this.buttonOffsetX) + "px";
	}
	*/
	var calButton = document.createElement('img');
	calButton.id = newid;
	calButton.title = this.buttonTitle;
	// Set some attributes to remember the text-input associated
	// with this button and its format:
	calButton.setAttribute("datepicker_inputid", input.id);
	calButton.setAttribute("datepicker_format", fmt);
	// Add the event listeners:
	if (calButton.addEventListener){
		calButton.addEventListener("click", DPC_onButtonClick, false);
	}
	else if (calButton.attachEvent){
		calButton.attachEvent("onclick", DPC_onButtonClick);
	}
	// Set the style and position:
	calButton.className = "calendarbutton";
	calButton.style.position = "relative";
	calButton.style.cursor = "pointer";
	calButton.style.verticalAlign = "bottom";
	calButton.style.height = input.offsetHeight;
	calButton.src = "images/calendar_icon.png";
	if (this.buttonPosition == "in"){
 		// calButton.style.left = "-" + calButton.offsetWidth;
	}

	var theParent = input.parentNode;
	var noBreak   = document.createElement('nobr');
	var spacer    = document.createElement('span');
	spacer.innerHTML = "&nbsp;";
	
	var sibling = null;
	if (input.nextSibling){
		sibling = input.nextSibling;
	}
	theParent.removeChild(input);
	noBreak.appendChild(input);
	noBreak.appendChild(spacer);
	noBreak.appendChild(calButton);
	noBreak.appendChild(spacer.cloneNode(true));
	
	if (sibling){
		theParent.insertBefore(noBreak, sibling);
	}
	else{
		theParent.appendChild(noBreak);
	}
	
	// everything is ok
	return true;
}


//-----------------------------------------------------------------------------
/**
 * Show the calendar
 */
DatePickerControl.show = function()
{
	if (!this.displayed){
		var input = this.inputControl;
		if (input == null) return;
		if (input.disabled) return; // just in case ;)
		var top  = getObject.getSize("offsetTop", input);
		var left = getObject.getSize("offsetLeft", input);
		var calframe = document.getElementById(this.calFrameId);

		this.calContainer.style.top        = top + input.offsetHeight + this.offsetY + "px";
		this.calContainer.style.left       = left + this.offsetX + "px";
		this.calContainer.style.display    = "none";
		this.calContainer.style.visibility = "visible";
		this.calContainer.style.display    = "block";
		this.calContainer.style.height     = calframe.offsetHeight;
		if (this.calBG){ // the ugly patch for IE
			this.calBG.style.top        = this.calContainer.style.top;
			this.calBG.style.left       = this.calContainer.style.left;
			this.calBG.style.display    = "none";
			this.calBG.style.visibility = "visible";
			this.calBG.style.display    = "block";
			this.calBG.style.width      = this.calContainer.offsetWidth;
			if (calframe){
				this.calBG.style.height = calframe.offsetHeight;
			}
		}
		this.displayed = true;
		input.focus();
	}
}


//-----------------------------------------------------------------------------
/**
 * Hide the calendar
 */
DatePickerControl.hide = function()
{
	if (this.displayed){
		this.calContainer.style.visibility = "hidden";
		this.calContainer.style.left = -1000; // some problems with overlaped controls
		this.calContainer.style.top = -1000;
		if (this.calBG){ // the ugly patch for IE
			this.calBG.style.visibility = "hidden";
			this.calBG.style.left = -1000;
			this.calBG.style.top = -1000;
		}
		this.inputControl.value = this.originalValue;
		this.displayed = false;
	}
}


//-----------------------------------------------------------------------------
/**
 * Gets the name of a numbered month
 */
DatePickerControl.getMonthName = function(monthNumber)
{
	return this.Months[monthNumber];
}


//-----------------------------------------------------------------------------
/**
 * Obtains the days of a given month and year
 */
DatePickerControl.getDaysOfMonth = function(monthNo, p_year)
{
	if (this.isLeapYear(p_year)){
		return this.lDOMonth[monthNo];
	}
	else{
		return this.DOMonth[monthNo];
	}
}


//-----------------------------------------------------------------------------
/**
 * Will return an 1-D array with 1st element being the calculated month
 * and second being the calculated year after applying the month increment/decrement 
 * as specified by 'incr' parameter. 'incr' will normally have 1/-1 to navigate thru 
 * the months.
 */
DatePickerControl.calcMonthYear = function(p_Month, p_Year, incr)
{
	var ret_arr = new Array();

	if (incr == -1) {
		if (p_Month == 0) {
			ret_arr[0] = 11;
			ret_arr[1] = parseInt(p_Year) - 1;
		}
		else {
			ret_arr[0] = parseInt(p_Month) - 1;
			ret_arr[1] = parseInt(p_Year);
		}
	} 
	else if (incr == 1) {
		if (p_Month == 11) {
			ret_arr[0] = 0;
			ret_arr[1] = parseInt(p_Year) + 1;
		}
		else {
			ret_arr[0] = parseInt(p_Month) + 1;
			ret_arr[1] = parseInt(p_Year);
		}
	}

	return ret_arr;
}


//-----------------------------------------------------------------------------
/**
 * Gets the DatePickerControl HTML code
 */
DatePickerControl.getAllCode = function()
{
	var vCode = "";
	vCode += "<table class='calframe' id='" + this.calFrameId + "'>";
	vCode += this.getHeaderCode();
	vCode += this.getDaysHeaderCode();
	vCode += this.getDaysCode();
	vCode += "</table>";
	return vCode;
}


//-----------------------------------------------------------------------------
/**
 * The title and nav buttons
 */
DatePickerControl.getHeaderCode = function()
{
	var prevMMYYYY = this.calcMonthYear(this.month, this.year, -1);
	var prevMM = prevMMYYYY[0];
	var prevYYYY = prevMMYYYY[1];

	var nextMMYYYY = this.calcMonthYear(this.month, this.year, 1);
	var nextMM = nextMMYYYY[0];
	var nextYYYY = nextMMYYYY[1];

	var gNow = new Date();
	var vCode = "";
	
	var numberCols = this.weekNumber ? 8 : 7;

	vCode += "<tr><td colspan='" + numberCols + "' class='monthname'>";
	vCode += this.monthName + "&nbsp;&nbsp;";

	vCode += "<span title='" + this.Months[this.month] + " " + (parseInt(this.year)-1) + "' class='yearbutton' ";
	vCode += "onclick='DatePickerControl.build(" + this.month + ", " + (parseInt(this.year)-1)+");return false;'>&laquo;</span>";
	vCode += "&nbsp;" + this.year + "&nbsp;";

	vCode += "<span title='" + this.Months[this.month] + " " + (parseInt(this.year)+1) + "' class='yearbutton' ";
	vCode += "onclick='DatePickerControl.build(" + this.month + ", " + (parseInt(this.year)+1) + ");return false;'>&raquo;</span>";
	vCode += "</td></tr>";

	vCode += "<tr><td style='border-width:0px' colspan='" + numberCols + "'>";
	vCode += "<table class='navigation' width='100%'><tr>";

	vCode += "<td class='navbutton' title='" + this.Months[prevMM] + " " + prevYYYY + "' ";
	vCode += "onclick='DatePickerControl.build(" + prevMM + ", " + prevYYYY + ");return false;'>&lt;&lt;</td>";

	vCode += "<td class='navbutton' title='" + gNow.getDate() + " " + this.Months[gNow.getMonth()] + " " + gNow.getFullYear() + "' ";
	vCode += "onclick='DatePickerControl.build(" + gNow.getMonth() + ", " + gNow.getFullYear() + ");DatePickerControl.selectToday();return false;'>";
	vCode += this.todayText + "</td>";

	vCode += "<td class='navbutton' title='" + this.Months[nextMM] + " " + nextYYYY + "' ";
	vCode += "onclick='DatePickerControl.build(" + nextMM + ", " + nextYYYY +	");return false;'>&gt;&gt;</td>";

	vCode += "</tr></table>";
	vCode += "</td></tr>";

	return vCode;
}


//-----------------------------------------------------------------------------
/**
 * The days' name headers
 */
DatePickerControl.getDaysHeaderCode = function()
{
	var vCode = "";

	vCode = vCode + "<tr>";
	if (this.weekNumber){
		vCode += "<td class='weeknumber'>&nbsp;</td>"
	}
	for (i=this.firstWeekDay; i<this.firstWeekDay+7; i++){
		vCode += "<td class='dayname' width='14%'>" + this.Days[i % 7] + "</td>";
	}
	vCode = vCode + "</tr>";

	return vCode;
}


//-----------------------------------------------------------------------------
/**
 * The days numbers code
 */
DatePickerControl.getDaysCode = function()
{
	var vDate = new Date();
	vDate.setDate(1);
	vDate.setMonth(this.month);
	vDate.setFullYear(this.year);

	var vFirstDay = vDate.getDay();
	var vDay = 1;
	var vLastDay = this.getDaysOfMonth(this.month, this.year);
	var vOnLastDay = 0;
	var vCode = "";
	this.dayOfWeek = vFirstDay;

	var prevm = this.month == 0 ? 11 : this.month-1;
	var prevy = this.prevm == 11 ? this.year - 1 : this.year;
	prevmontdays = this.getDaysOfMonth(prevm, prevy);
	vFirstDay = (vFirstDay == 0 && this.firstWeekDay) ? 7 : vFirstDay;
	
	if (this.weekNumber){
		var week = this.getWeekNumber(this.year, this.month, 1);
	}
	vCode += "<tr>";
	if (this.weekNumber){
		vCode += "<td class='weeknumber'>" + week + "</td>";
	}
	
	// Write the last days of previous month
	for (i=this.firstWeekDay; i<vFirstDay; i++) {
		vCode = vCode + "<td class='dayothermonth'>" + (prevmontdays-vFirstDay+i+1) + "</td>";
	}

	// Write rest of the 1st week
	for (j=vFirstDay-this.firstWeekDay; j<7; j++) {
		if (this.isInRange(vDay)){
			classname = this.getDayClass(vDay, j);
			vCode += "<td class='" + classname + "' class_orig='" + classname + "' " +
				"onClick='DatePickerControl.writeDate(" + vDay + ")' id='" + this.dayIdPrefix + vDay + "'>" + vDay + "</td>";
		}
		else{
			vCode += "<td class='dayothermonth'>" + vDay + "</td>";
		}
		vDay++;
	}
	vCode = vCode + "</tr>";

	// Write the rest of the weeks
	for (k=2; k<7; k++){
		vCode = vCode + "<tr>";
		if (this.weekNumber){
			week++;
			if (week >= 53) week = 1;
			vCode += "<td class='weeknumber'>" + week + "</td>";
		}
		for (j=0; j<7; j++){
			if (this.isInRange(vDay)){
				classname = this.getDayClass(vDay, j);
				vCode += "<td class='" + classname  + "' class_orig='" +  classname + "' " +
					"onClick='DatePickerControl.writeDate(" + vDay + ")' id='" + this.dayIdPrefix + vDay + "'>" + vDay + "</td>";
			}
			else{
				vCode += "<td class='dayothermonth'>" + vDay + "</td>";
			}
			vDay++;
			if (vDay > vLastDay){
				vOnLastDay = 1;
				break;
			}
		}

		if (j == 6)
			vCode += "</tr>";
		if (vOnLastDay == 1)
			break;
	}

	// Fill up the rest of last week
	for (m=1; m<(7-j); m++){
		vCode += "<td class='dayothermonth'>" + m + "</td>";
	}

	return vCode;
}


//-----------------------------------------------------------------------------
/**
 * Get the class according if is 'today', the 'current' date at the control,
 * a 'weekend' day, or a 'normal' day.
 * @param vday The number of the day in the current month and year
 * @param dayofweek The number of the day within the week (0..6)
 */
DatePickerControl.getDayClass = function(vday, dayofweek)
{
	var gNow      = new Date();
	var vNowDay   = gNow.getDate();
	var vNowMonth = gNow.getMonth();
	var vNowYear  = gNow.getFullYear();

	if (vday == vNowDay && this.month == vNowMonth && this.year == vNowYear){
		return "today";
	}
	else{
		// transform the day acording the specified firts day of week
		var realdayofweek = (7 + dayofweek + this.firstWeekDay) % 7;
		for (i=0; i<this.weekend.length; i++){
			if (realdayofweek == this.weekend[i]){
				return "weekend";
			}
		}
		return "day";
	}
}


//-----------------------------------------------------------------------------
/**
 * Gets the date string according to calendar's format
 * @param p_day The number of the day in the current month and year
 */
DatePickerControl.formatData = function(p_day)
{
	var vData;
	var vMonth = 1 + this.month;
	vMonth = (vMonth.toString().length < 2) ? "0" + vMonth : vMonth;
	var vMon = this.getMonthName(this.month).substr(0,3).toUpperCase();
	var vFMon = this.getMonthName(this.month).toUpperCase();
	var vY4 = new String(this.year);
	var vY2 = new String(this.year).substr(2,2);
	var vDD = (p_day.toString().length < 2) ? "0" + p_day : p_day;

	switch (this.format) {

		case "MM/DD/YYYY" :
			vData = vMonth + "/" + vDD + "/" + vY4;
			break;
		case "MM/DD/YY" :
			vData = vMonth + "/" + vDD + "/" + vY2;
			break;
		case "MM-DD-YYYY" :
			vData = vMonth + "-" + vDD + "-" + vY4;
			break;
		case "MM-DD-YY" :
			vData = vMonth + "-" + vDD + "-" + vY2;
			break;
		case "YYYY-MM-DD":
			vData = vY4 + "-" + vMonth + "-" + vDD;
			break;
		case "YYYY/MM/DD":
			vData = vY4 + "/" + vMonth + "/" + vDD;
			break;

		case "DD/MON/YYYY" :
			vData = vDD + "/" + vMon + "/" + vY4;
			break;
		case "DD/MON/YY" :
			vData = vDD + "/" + vMon + "/" + vY2;
			break;
		case "DD-MON-YYYY" :
			vData = vDD + "-" + vMon + "-" + vY4;
			break;
		case "DD-MON-YY" :
			vData = vDD + "-" + vMon + "-" + vY2;
			break;

		case "DD/MONTH/YYYY" :
			vData = vDD + "/" + vFMon + "/" + vY4;
			break;
		case "DD/MONTH/YY" :
			vData = vDD + "/" + vFMon + "/" + vY2;
			break;
		case "DD-MONTH-YYYY" :
			vData = vDD + "-" + vFMon + "-" + vY4;
			break;
		case "DD-MONTH-YY" :
			vData = vDD + "-" + vFMon + "-" + vY2;
			break;

		case "DD/MM/YYYY" :
			vData = vDD + "/" + vMonth + "/" + vY4;
			break;
		case "DD/MM/YY" :
			vData = vDD + "/" + vMonth + "/" + vY2;
			break;
		case "DD-MM-YYYY" :
			vData = vDD + "-" + vMonth + "-" + vY4;
			break;
		case "DD-MM-YY" :
			vData = vDD + "-" + vMonth + "-" + vY2;
			break;
		
		case "DD.MM.YYYY" :
			vData = vDD + "." + vMonth + "." + vY4;
			break;
		case "DD.MM.YY" :
			vData = vDD + "." + vMonth + "." + vY2;
			break;

		default :
			vData = vMonth + "/" + vDD + "/" + vY4;
	}

	return vData;
}


//-----------------------------------------------------------------------------
/**
 * Try to get the date from the control according to the format:
 * This function doesn't work with named months
 * @return An object of class Date with the current date in the control (if succesfull) or
 *  today if fails.
 */
DatePickerControl.getDateFromControl = function(ctrl)
{
	if (ctrl == null) ctrl = this.inputControl;
	var value = ctrl.value;
	var format = ctrl.getAttribute("datepicker_format");
	return this.getDateFromString(value, format.toString());
}


//-----------------------------------------------------------------------------
/**
 * Gets a Date objects from a string given a format.
 * @param strdate The string with the date.
 * @param format The date's format.
 * @return A Date object with the date of string according to the format, or
 * today if string is empty or non-valid.
 */
DatePickerControl.getDateFromString = function(strdate, format) 
{
	var aDate = new Date();
	var day, month, year;
	
	if (strdate == "" || format == "") return aDate;
	strdate = strdate.replace("/", "@").replace("/", "@");
	strdate = strdate.replace("-", "@").replace("-", "@");
	strdate = strdate.replace(".", "@").replace(".", "@");
	// check again
	if (strdate.indexOf("/")>=0 || strdate.indexOf("-")>=0 || strdate.indexOf(".")>=0) return aDate;
	// validate all other stuff
	var data = strdate.split("@");
	if (data.length != 3) return aDate;
	for (i=0; i<3; i++){
		data[i] = parseFloat(data[i]);
		if (isNaN(data[i])) return aDate;
	}
	aDate.setDate(1);
	if (format.substring(0,1).toUpperCase() == "D"){
		aDate.setFullYear(this.yearTwo2Four(data[2]));
		aDate.setMonth(data[1]-1);
		aDate.setDate(data[0]);
	}
	else if (format.substring(0,1).toUpperCase() == "Y"){
		aDate.setFullYear(this.yearTwo2Four(data[0]));
		aDate.setMonth(data[1]-1);
		aDate.setDate(data[2]);
	}
	else if (format.substring(0,1).toUpperCase() == "M"){
		aDate.setFullYear(this.yearTwo2Four(data[2]));
		aDate.setMonth(data[0]-1);
		aDate.setDate(data[1]);
	}
	return aDate;
}


//-----------------------------------------------------------------------------
/**
 * Transform a two digits year into a four digits year.
 * All year from 30 to 99 are trated as 19XX, year before
 * 30 are trated as 20XX
 */
DatePickerControl.yearTwo2Four = function(year)
{
	if (year < 99){
		if (year >= 30){
			year += 1900;
		}
		else{
			year += 2000;
		}
	}
	return year;
}
 

//-----------------------------------------------------------------------------
/**
 * Writes the specified date in the control and close the calendar.
 */
DatePickerControl.writeDate = function(day)
{
	var d = this.formatData(day);
	this.inputControl.value = d;
	this.originalValue = d;
	this.hide();
	if (DatePickerControl.onSelect) DatePickerControl.onSelect(this.inputControl.id);
	this.firstFocused = true;
	this.inputControl.focus();
}


//-----------------------------------------------------------------------------
/**
 * Writes the current date in the control
 */
DatePickerControl.writeCurrentDate = function()
{
	var d = this.formatData(this.currentDay);
	this.inputControl.value = d;
}


//-----------------------------------------------------------------------------
/**
 * Creates and write the calendar's code
 * @param m The month to build
 * @param y The year to build
 */
DatePickerControl.build = function(m, y)
{
	var bkm = this.month;
	var bky = this.year;
	var calframe = document.getElementById(this.calFrameId);
	if (m==null){
		var now = new Date();
		this.month = now.getMonth();
		this.year  = now.getFullYear();
	}
	else{
		this.month = m;
		this.year  = y;
	}
	// validate range
	if (!this.isInRange(null)){
		this.month = bkm;
		this.year  = bky;
	}
	if (!this.isInRange(this.currentDay)){
		if (this.minDate && this.currentDay < this.minDate.getDate()) this.currentDay = this.minDate.getDate();
		if (this.maxDate && this.currentDay > this.maxDate.getDate()) this.currentDay = this.maxDate.getDate();
	}
	this.monthName = this.Months[this.month];
	var code = this.getAllCode();
	writeLayer(this.calContainer.id, null, code);
	if (this.calContainer && calframe) this.calContainer.style.height = calframe.offsetHeight;
	this.firstFocused = true;
	this.inputControl.focus();
	this.selectDay(this.currentDay);
}


//-----------------------------------------------------------------------------
/**
 * Build the prev month calendar
 */
DatePickerControl.buildPrev = function()
{
	if (!this.displayed) return;
	var prevMMYYYY = this.calcMonthYear(this.month, this.year, -1);
	var prevMM = prevMMYYYY[0];
	var prevYYYY = prevMMYYYY[1];
	this.build(prevMM, prevYYYY);
}


//-----------------------------------------------------------------------------
/**
 * Build the next month calendar
 */
DatePickerControl.buildNext = function()
{
	if (!this.displayed) return;
	var nextMMYYYY = this.calcMonthYear(this.month, this.year, 1);
	var nextMM = nextMMYYYY[0];
	var nextYYYY = nextMMYYYY[1];
	this.build(nextMM, nextYYYY);
}


//-----------------------------------------------------------------------------
/**
 * Today button action
 */
DatePickerControl.selectToday = function()
{
	var now = new Date();
	var today = now.getDate();
	if (!this.isInRange(today)) return;
	if (this.closeOnTodayBtn){
		this.currentDay = today;
		this.writeDate(this.currentDay);
	}
	else{
		this.selectDay(today);
	}
}


//-----------------------------------------------------------------------------
/**
 * Select a specific day
 */
DatePickerControl.selectDay = function(day)
{
	if (!this.displayed) return;
	if (!this.isInRange(day)){
		return;
	}
	var n = this.currentDay;
	var max = this.getDaysOfMonth(this.month, this.year);
	if (day > max) return;
	var newDayObject = document.getElementById(this.dayIdPrefix+day);
	var currentDayObject = document.getElementById(this.dayIdPrefix+this.currentDay);
	if (currentDayObject){
		currentDayObject.className = currentDayObject.getAttribute("class_orig");
	}
	if (newDayObject){
		newDayObject.className = "current";
		this.currentDay = day;
		this.writeCurrentDate();
	}
}


//-----------------------------------------------------------------------------
/**
 * Select the prev week day
 * @param decr Use 1 for yesterday or 7 for prev week
 */
DatePickerControl.selectPrevDay = function(decr)
{
	if (!this.displayed) return;
	var n = this.currentDay;
	var max = this.getDaysOfMonth(this.month, this.year);
	var prev = n - decr;
	if ( prev <= 0 ){
		if (decr == 7){
			n = (n + this.dayOfWeek) + 28 - this.dayOfWeek;
			n--;
			prev = n > max ? n-7 : n;
		}
		else{
			prev = max;
		}
	}
	this.selectDay(prev);
}


//-----------------------------------------------------------------------------
/**
 * Select the next week day
 * @param decr Use 1 for tomorrow or 7 for next week
 */
DatePickerControl.selectNextDay = function(incr)
{
	if (!this.displayed) return;
	var n = this.currentDay;
	var max = this.getDaysOfMonth(this.month, this.year);
	var next = n + incr;
	if ( next > max ){
		if (incr == 7){
			n = ((n + this.dayOfWeek) % 7) - this.dayOfWeek;
			next = n < 0 ? n+7 : n;
			next++;
		}
		else{
			next = 1;
		}
	}
	this.selectDay(next);
}


//-----------------------------------------------------------------------------
/**
 * Show the calendar for an edit control
 */
DatePickerControl.showForEdit = function(edit)
{
	if (this.displayed) return;
	if (edit == null) return;
	if (edit.disabled) return;
	this.inputControl  = edit;
	this.originalValue = edit.value;
	this.setupRange();
	// the format
	var format = this.inputControl.getAttribute("datepicker_format");
	if (format == null) format = this.defaultFormat;
	this.format = format;
	// build with the current date in the control?
	if (this.validate(edit.value, format)){
		var date = this.getDateFromControl();
		this.currentDate = date;
		this.build(date.getMonth(), date.getFullYear());
		this.currentDay  = date.getDate();
	}
	else{
		edit.value = "";
		this.originalValue = "";
		this.currentDate = null;
		if (this.defaultTodaySel){
			this.currentDay = new Date().getDate();
		}
		else{
			this.currentDay = 1;
		}
		this.build(null, null);
	}
	var currentDayObject = document.getElementById(this.dayIdPrefix+this.currentDay);
	if (currentDayObject) currentDayObject.className = "current";
	this.writeCurrentDate();
	// and finally
	this.show();
}


//-----------------------------------------------------------------------------
/** 
 * Determine if a given day (with current month and year) is in range
 * according to the min and max limit.
 * @param day The number of the day; if null then the current month is validated.
 */
DatePickerControl.isInRange = function(day)
{
	if (!this.minDate && !this.maxDate) return true;
	if (day){
		var aDate = new Date();
		aDate.setFullYear(this.year);
		aDate.setMonth(this.month);
		aDate.setDate(day);
		if (this.minDate){
			if (this.compareDates(aDate, this.minDate) < 0) return false;
		}
		if (this.maxDate){
			if (this.compareDates(aDate, this.maxDate) > 0) return false;
		}
	}
	else{ // validate only the month.
		var currentym = parseInt(this.year.toString() + (this.month < 10 ? "0"+this.month.toString() : this.month.toString()));
		var m;
		if (this.minDate){
			m = this.minDate.getMonth();
			var minym = parseInt(this.minDate.getFullYear().toString() + (m < 10 ? "0"+m.toString() : m.toString()));
			if (currentym < minym) return false;
		}
		if (this.maxDate){
			m = this.maxDate.getMonth();
			var maxym = parseInt(this.maxDate.getFullYear().toString() + (m < 10 ? "0"+m.toString() : m.toString()));
			if (currentym > maxym) return false;
		}
	}
	return true;
}


//-----------------------------------------------------------------------------
/**
 *
 */
DatePickerControl.setupRange = function()
{
	// get the date range
	var edit = this.inputControl;
	var format = edit.getAttribute("datepicker_format");
	var min = edit.getAttribute("datepicker_min");
	this.minDate = min ? this.getDateFromString(min, format) : null;
	var max = edit.getAttribute("datepicker_max");
	this.maxDate = max ? this.getDateFromString(max, format) : null;
	if (this.maxDate && this.minDate){
		if (this.maxDate.getTime() < this.minDate.getTime()){
			var tmp = this.maxDate;
			this.maxDate = this.minDate;
			this.minDate = tmp;
		}
	}
}


//-----------------------------------------------------------------------------
/**
 * Compare two dates. We cannot use Date getTime() mehtod  in some specific cases,
 * so we use a trick with the string year+month+day transformed in a number.
 * @return '<0' if d1 < d2     '0' if d1 = d2     '>0' if d1 > d2
 */
DatePickerControl.compareDates = function(d1, d2)
{
	var m = d1.getMonth();
	var d = d1.getDate();
	var s1 = d1.getFullYear().toString() + (m<10 ? "0"+m.toString() : m.toString()) + (d<10 ? "0"+d.toString() : d.toString());
	m = d2.getMonth();
	d = d2.getDate();
	var s2 = d2.getFullYear().toString() + (m<10 ? "0"+m.toString() : m.toString()) + (d<10 ? "0"+d.toString() : d.toString());
	var n1 = parseInt(s1);
	var n2 = parseInt(s2);
	return n1-n2;
}


//-----------------------------------------------------------------------------
/**
 * Validate a string according to a date format.
 * Portions of code from: http://www.rgagnon.com/jsdetails/js-0063.html
 * @param strdate The string with the date.
 * @param format The format to validate.
 * @return true if succesfull or false otherwise
 */
DatePickerControl.validate = function(strdate, format)
{
	var dateRegExp;
	var separator;
	var d, m, y;
	var od = this.currentDay, om = this.month, oy = this.year;
	
	if (strdate == "") return false;
	
	// use the correct regular expresion...
	if (format.substring(0,1).toUpperCase() == "D"){
		dateRegExp = /^\d{1,2}(\-|\/|\.)\d{1,2}\1\d{2,4}$/
	}
	else if (format.substring(0,1).toUpperCase() == "Y"){
		dateRegExp = /^\d{2,4}(\-|\/|\.)\d{1,2}\1\d{1,2}$/
	}
	else if (format.substring(0,1).toUpperCase() == "M"){
		dateRegExp = /^\d{1,2}(\-|\/|\.)\d{1,2}\1\d{2,4}$/
	}

	// is ok at least with the format?
	if (!dateRegExp.test(strdate)){
		return false;
	}
	
	// chek for a valid day month day combination
	separator = (strdate.indexOf("/") > 1) ? "/" : ((strdate.indexOf("-") > 1) ? "-" : ".");
	var datearray = strdate.split(separator);
	
	// get the number of date elements
	if (format.substring(0,1).toUpperCase() == "D"){
		d = parseFloat(datearray[0]);
		m = parseFloat(datearray[1]);
		y = parseFloat(datearray[2]);
	}
	else if (format.substring(0,1).toUpperCase() == "Y"){
		d = parseFloat(datearray[2]);
		m = parseFloat(datearray[1]);
		y = parseFloat(datearray[0]);
	}
	else if (format.substring(0,1).toUpperCase() == "M"){
		d = parseFloat(datearray[1]);
		m = parseFloat(datearray[0]);
		y = parseFloat(datearray[2]);
	}	
	// is a valid month?
	if (m<1 || m>12) return false;
	//check if month value and day value agree
	if (d > this.getDaysOfMonth(m-1, y)) return false;
	
	// ok, date is valid... but is it in range?
	this.month = m;
	this.year  = y;
	var res = this.isInRange(d);
	this.month = om;
	this.year  = oy;
	return res;
}


//-----------------------------------------------------------------------------
/**
 * Check if a year is leap:
 * 1.Years evenly divisible by four are normally leap years, except for...
 * 2.Years also evenly divisible by 100 are not leap years, except for...
 * 3.Years also evenly divisible by 400 are leap years.
 * @return true if the year is leap or false otherwise.
 */
DatePickerControl.isLeapYear = function(year)
{
	if ((year % 4) == 0){
		if ((year % 100) == 0 && (year % 400) != 0){
			return false;
		}
		return true;
	}
	return false;
}


//-----------------------------------------------------------------------------
/**
 * Click event for calendar button
 */
function DPC_onButtonClick(event){DatePickerControl.onButtonClick(event);}
DatePickerControl.onButtonClick = function(event)
{
	if (!this.displayed){
		// get the button
		if (event == null) event = window.event;
		var button = (event.srcElement) ? event.srcElement : event.originalTarget;
		// gets the associated input:
		var input = document.getElementById(button.getAttribute("datepicker_inputid"));
		this.showForEdit(input);
	}
	else{
		this.hide();
	}
}


//-----------------------------------------------------------------------------
/**
 * Click event for calendar layer.
 */
function DPC_onContainerClick(event){DatePickerControl.onContainerClick(event);}
DatePickerControl.onContainerClick = function(event)
{
	if (event == null) event = window.event;
	if (this.hideTimeout){
		clearTimeout(this.hideTimeout);
		this.hideTimeout = null;
	}
	this.inputControl.focus();
	return false;
}


//-----------------------------------------------------------------------------
/**
 * Key-up event for edit controls as date-pickers
 */
function DPC_onEditControlKeyUp(event){DatePickerControl.onEditControlKeyUp(event);}
DatePickerControl.onEditControlKeyUp = function(event)
{
	if (event == null) event = window.event;
	var edit = event.srcElement ? event.srcElement : event.originalTarget;
	var kc   = event.charCode ? event.charCode : event.which ? event.which : event.keyCode;
	//alert(event.keyCode);
	switch (kc){
		case 37: // left arrow key
			this.selectPrevDay(1);
			break;

		case 38: // up arrow key
			this.selectPrevDay(7);
			break;

		case 39: // right arrow key
			this.selectNextDay(1);
			break;

		case 40: // down arrow key
			if (!this.displayed){
				this.showForEdit(edit);
			}
			else{
				this.selectNextDay(7);
				break;
			}
			break;

		case 27: // escape key
			this.hide();
			break;

		case 33: // repag key
			if ((event.modifiers & Event.SHIFT_MASK) || (event.shiftKey)){
				this.build(this.month, parseInt(this.year)-1);
			}
			else{
				this.buildPrev();
			}
			break;

		case 34: // avpag key
			if ((event.modifiers & Event.SHIFT_MASK) || (event.shiftKey)){
				this.build(this.month, parseInt(this.year)+1);
			}
			else{
				this.buildNext();
			}
			break;

		case 13: // enter-key (forms without submit buttons)
			if (this.displayed && this.currentDay > 0 && this.submitByKey){
				this.writeDate(this.currentDay);
			}
			break;
	}
	return false;
}


//-----------------------------------------------------------------------------
/**
 * Key-down event for edit controls as date-pickers
 */
function DPC_onEditControlKeyDown(event){DatePickerControl.onEditControlKeyDown(event);}
DatePickerControl.onEditControlKeyDown = function(event)
{
	if (event == null) event = window.event;
	var edit = event.srcElement ? event.srcElement : event.originalTarget;
	var kc   = event.charCode ? event.charCode : event.which ? event.which : event.keyCode;
	//alert(event.keyCode);
	if ( kc >= 65 && kc <= 90 ){ // letters
		if (event.stopPropagation) event.stopPropagation();
		if (event.preventDefault)  event.preventDefault();
		event.returnValue  = false;
		event.cancelBubble = true;
		return false;
	}	
	switch (kc){
		case 13: // enter key
			this.submitByKey = true;
			break;
		case 9:  // tab key
		case 32: // space-bar key
			if (this.displayed && this.currentDay > 0){
				this.writeDate(this.currentDay);
			}
			break;
	}
}


//-----------------------------------------------------------------------------
/**
 * Key-press event for edit controls as date-pickers
 */
function DPC_onEditControlKeyPress(event){DatePickerControl.onEditControlKeyPress(event);}
DatePickerControl.onEditControlKeyPress = function(event)
{
	if (event == null) event = window.event;
	var edit = event.srcElement ? event.srcElement : event.originalTarget;
	var kc   = event.charCode ? event.charCode : event.which ? event.which : event.keyCode;
	if (!((kc < 32) || (kc > 44 && kc < 58))){
		if (event.stopPropagation) event.stopPropagation();
		if (event.preventDefault)  event.preventDefault();
		event.returnValue  = false;
		event.cancelBubble = true;
		return false;
	}	
}


//-----------------------------------------------------------------------------
/**
 * Blur event for edit controls as date-pickers
 */
function DPC_onEditControlBlur(event){DatePickerControl.onEditControlBlur(event);}
DatePickerControl.onEditControlBlur = function(event)
{
	if (event == null) event = window.event;
	if (!this.hideTimeout){
		this.hideTimeout = setTimeout("DatePickerControl.hide()", this.HIDE_TIMEOUT);
	}
	this.firstFocused  = false;
	this.hideCauseBlur = true;
}


//-----------------------------------------------------------------------------
/**
 * Change event for edit controls as date-pickers
 */
function DPC_onEditControlChange(event){DatePickerControl.onEditControlChange(event);}
DatePickerControl.onEditControlChange = function(event)
{
	if (event == null) event = window.event;
	var edit = (event.srcElement) ? event.srcElement : event.originalTarget;
	if (edit.value == "") return;
	var format = edit.getAttribute("datepicker_format");
	if (!this.validate(edit.value, format)){
		setTimeout("e = document.getElementById('"+edit.id+"'); e.value=''; e.focus()", 10);
	}
}


//-----------------------------------------------------------------------------
/**
 * Focus event for edit controls as date-pickers
 */
function DPC_onEditControlFocus(event){DatePickerControl.onEditControlFocus(event);}
DatePickerControl.onEditControlFocus = function(event)
{
	if (event == null) event = window.event;
	var edit = (event.srcElement) ? event.srcElement : event.originalTarget;
	
	this.inputControl  = edit;
	this.originalValue = edit.value;
	this.setupRange();
	
	if ((!this.displayed || this.hideCauseBlur) && this.autoShow && !this.firstFocused){
		clearTimeout(this.hideTimeout);
		this.hideTimeout   = null;
		this.firstFocused  = true;
		if (this.hideCauseBlur){
			this.hideCauseBlur = false;
			this.hide();
		}
		this.showForEdit(edit);
	}
	else if (this.inputControl && this.inputControl.id != edit.id){
		this.hide();
	}
	else if (this.hideTimeout){
		clearTimeout(this.hideTimeout);
		this.hideTimeout = null;
	}
}


//-----------------------------------------------------------------------------
/**
 * Form's submit event
 */
function DPC_onFormSubmit(event){DatePickerControl.onFormSubmit(event);}
DatePickerControl.onFormSubmit = function(event)
{
	if (this.submitByKey){
		this.submitByKey = false;
		if (this.displayed && this.currentDay > 0){
			this.writeDate(this.currentDay);
			if (event == null) event = window.event;
			var theForm = (event.srcElement) ? event.srcElement : event.originalTarget;
			if (event.stopPropagation) event.stopPropagation();
			if (event.preventDefault)  event.preventDefault();
			event.returnValue  = false;
			event.cancelBubble = true;
			return false;
		}
	}
	this.reformatOnSubmit();
}


//-----------------------------------------------------------------------------
/** 
 * Reformat all dates to the current onSubmit date format
 */
DatePickerControl.reformatOnSubmit = function()
{
	if (this.submitFormat == "") return true;
	var inputControls = document.getElementsByTagName("input"); 
	var inputsLength  = inputControls.length;
	var i;
	for (i=0; i<inputsLength; i++){
		if (inputControls[i].type.toLowerCase() == "text"){
			var editctrl  = inputControls[i];
			if (editctrl.value == "") continue;
			var isdpc = editctrl.getAttribute("isdatepicker");
			if (isdpc && isdpc == "true"){
				var thedate = this.getDateFromControl(editctrl);
				var res = this.submitFormat.replace("DD", thedate.getDate());
				var mo  = thedate.getMonth() + 1;
				res = res.replace("MM", mo.toString());
				if (this.submitFormat.indexOf("YYYY") >= 0){
					res = res.replace("YYYY", thedate.getFullYear());
				}
				else{
					res = res.replace("YY", thedate.getFullYear());
				}
				editctrl.value = res;
			}
		}
	}
	return true;
}


//-----------------------------------------------------------------------------
/**
 * Replacement for submit method of the form.
 */
function DPC_formSubmit()
{
	var res = DatePickerControl.reformatOnSubmit();
	if (this.submitOrig){
		res = this.submitOrig();
	}
	return res;
}


//-----------------------------------------------------------------------------
/**
 * Window resize event.
 */
function DPC_onWindowResize(event){DatePickerControl.onWindowResize(event);}
DatePickerControl.onWindowResize = function(event)
{
	this.relocate();
	//this.relocateButtons();
}


//-----------------------------------------------------------------------------
/**
 * Relocate buttons
 */
DatePickerControl.relocateButtons = function()
{
	return;
	var divElements = document.getElementsByTagName("div");
	for (key in divElements){
		if (divElements[key].id && divElements[key].id.indexOf(this.buttonIdPrefix) == 0){
			var calButton = divElements[key];
			if (calButton.style.display == 'none') continue;
			var input = document.getElementById(calButton.getAttribute("datepicker_inputid"));
			if (input.style.display == 'none' || input.offsetTop == 0) continue;
			var nTop = getObject.getSize("offsetTop", input);
			var nLeft = getObject.getSize("offsetLeft", input);
			calButton.style.top = (nTop + Math.floor((input.offsetHeight-calButton.offsetHeight)/2) + this.buttonOffsetY) + "px";
			var btnOffX         = Math.floor((input.offsetHeight - calButton.offsetHeight) / 2);
			if (this.buttonPosition == "in"){
				calButton.style.left = (nLeft + input.offsetWidth - calButton.offsetWidth - btnOffX + this.buttonOffsetX) + "px";
			}
			else{ // "out"
				calButton.style.left = (nLeft + input.offsetWidth + btnOffX + this.buttonOffsetX) + "px";
			}
		}
	}
}


//-----------------------------------------------------------------------------
/**
 * Relocate the calendar's frame
 */
DatePickerControl.relocate = function()
{
	if (this.displayed){
		var input = this.inputControl;
		if (input == null) return;
		var top  = getObject.getSize("offsetTop", input);
		var left = getObject.getSize("offsetLeft", input);
		this.calContainer.style.top  = top + input.offsetHeight + this.offsetY + "px";
		this.calContainer.style.left = left + this.offsetX + "px";
		if (this.calBG){ // the ugly patch for IE
			this.calBG.style.top  = this.calContainer.style.top;
			this.calBG.style.left = this.calContainer.style.left;
		}
	}
}


//-----------------------------------------------------------------------------
/**
 * Gets the number of the week on the year for the given year, month, day.
 */
DatePickerControl.getWeekNumber = function(year, month, day) 
{
	var when = new Date(year,month,day);
	var newYear = new Date(year,0,1);
	var offset = 7 + 1 - newYear.getDay();
	if (offset == 8) offset = 1;
	var daynum = ((Date.UTC(y2k(year),when.getMonth(),when.getDate(),0,0,0) - Date.UTC(y2k(year),0,1,0,0,0)) /1000/60/60/24) + 1;
	var weeknum = Math.floor((daynum-offset+7)/7);
	if (weeknum == 0) {
		year--;
		var prevNewYear = new Date(year,0,1);
		var prevOffset = 7 + 1 - prevNewYear.getDay();
		if (prevOffset == 2 || prevOffset == 8) weeknum = 53; else weeknum = 52;
	}
	return weeknum;
}

function y2k(number) { return (number < 1000) ? number + 1900 : number; }


//-----------------------------------------------------------------------------
// Following 2 functions by: Mircho Mirev

function getObject(sId)
{
	if (bw.dom){
		this.hElement = document.getElementById(sId);
		this.hStyle = this.hElement.style;
	}
	else if (bw.ns4){
		this.hElement = document.layers[sId];
		this.hStyle = this.hElement;
	}
	else if (bw.ie){
		this.hElement = document.all[sId];
		this.hStyle = this.hElement.style;
	}
}

getObject.getSize = function(sParam, hLayer)
{
	nPos = 0;
	while ((hLayer.tagName) && !( /(body|html)/i.test(hLayer.tagName))){
		nPos += eval('hLayer.' + sParam);
		if (sParam == 'offsetTop'){
			if (hLayer.clientTop){
				nPos += hLayer.clientTop;
			}
		}
		if (sParam == 'offsetLeft'){
			if (hLayer.clientLeft){
				nPos += hLayer.clientLeft;
			}
		}
		hLayer = hLayer.offsetParent;
	}
	return nPos;
}


//-----------------------------------------------------------------------------
/**
 * Based on code by: Peter Todorov
 */
function writeLayer(ID, parentID, sText)
{
	if (document.layers){
		var oLayer;
		if(parentID){
			oLayer = eval('document.' + parentID + '.document.' + ID + '.document');
		}
		else{
			oLayer = document.layers[ID].document;
		}
		oLayer.open();
		oLayer.write(sText);
		oLayer.close();
	}
	else if(document.all){
		document.all[ID].innerHTML = sText;
	}
	else{
		document.getElementById(ID).innerHTML = sText;
	}
}

//
// Compartir es la única manera de perdurar
// EOF