/*
 * jQuery UI Datepicker 1.7.1
 *
 * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Datepicker
 *
 * Depends:
 *	ui.core.js
 */
(function ($) {
    $.extend($.ui, {
        datepicker: {
            version: "1.7.1"
        }
    });
    var PROP_NAME = "datepicker";

    function Datepicker() {
        this.debug = false;
        this._curInst = null;
        this._keyEvent = false;
        this._disabledInputs = [];
        this._datepickerShowing = false;
        this._inDialog = false;
        this._mainDivId = "ui-datepicker-div";
        this._inlineClass = "ui-datepicker-inline";
        this._appendClass = "ui-datepicker-append";
        this._triggerClass = "ui-datepicker-trigger";
        this._dialogClass = "ui-datepicker-dialog";
        this._disableClass = "ui-datepicker-disabled";
        this._unselectableClass = "ui-datepicker-unselectable";
        this._currentClass = "ui-datepicker-current-day";
        this._dayOverClass = "ui-datepicker-days-cell-over";
        this.regional = [];
        this.regional[""] = {
            closeText: "Kiezen",
            prevText: "Vorige",
            nextText: "Volgende",
            currentText: "Vandaag",
            monthNames: ["januari", "februari", "maart", "april", "mei", "juni", "juli", "augustus", "september", "oktober", "november", "december"],
            monthNamesShort: ["jan", "feb", "mar", "apr", "mei", "jun", "jul", "aug", "sep", "okt", "nov", "dec"],
            dayNames: ["zondag", "maandag", "dinsdag", "woensdag", "donderdag", "vrijdag", "zaterdag"],
            dayNamesShort: ["zon", "maa", "din", "woe", "don", "vri", "zat"],
            dayNamesMin: ["zo", "ma", "di", "wo", "do", "vr", "za"],
            dateFormat: "d-m-yy",
            firstDay: 0,
            isRTL: false
        };
        /*this.regional[""] = {
            closeText: "Done",
            prevText: "Prev",
            nextText: "Next",
            currentText: "Today",
            monthNames: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
            monthNamesShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
            dayNames: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
            dayNamesShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
            dayNamesMin: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"],
            dateFormat: "mm/dd/yy",
            firstDay: 0,
            isRTL: false
        };*/
        this._defaults = {
            showOn: "focus",
            showAnim: "show",
            showOptions: {},
            defaultDate: null,
            appendText: "",
            buttonText: "...",
            buttonImage: "",
            buttonImageOnly: false,
            hideIfNoPrevNext: false,
            navigationAsDateFormat: false,
            gotoCurrent: false,
            changeMonth: false,
            changeYear: false,
            showMonthAfterYear: false,
            yearRange: "-10:+2",
            showOtherMonths: false,
            calculateWeek: this.iso8601Week,
            shortYearCutoff: "+10",
            minDate: "+0",
            maxDate: "+2years",
            duration: "normal",
            beforeShowDay: null,
            beforeShow: null,
            onSelect: null,
            onChangeMonthYear: null,
            onClose: null,
            numberOfMonths: 1,
            showCurrentAtPos: 0,
            stepMonths: 1,
            stepBigMonths: 12,
            altField: "",
            altFormat: "",
            constrainInput: true,
            showButtonPanel: false
        };
        $.extend(this._defaults, this.regional[""]);
        this.dpDiv = $('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all ui-helper-hidden-accessible"></div>')
    }
    $.extend(Datepicker.prototype, {
        markerClassName: "hasDatepicker",
        log: function () {
            if (this.debug) {
                console.log.apply("", arguments)
            }
        },
        setDefaults: function (settings) {
            extendRemove(this._defaults, settings || {});
            return this
        },
        _attachDatepicker: function (target, settings) {
            var inlineSettings = null;
            for (var attrName in this._defaults) {
                var attrValue = target.getAttribute("date:" + attrName);
                if (attrValue) {
                    inlineSettings = inlineSettings || {};
                    try {
                        inlineSettings[attrName] = eval(attrValue)
                    } catch(err) {
                        inlineSettings[attrName] = attrValue
                    }
                }
            }
            var nodeName = target.nodeName.toLowerCase();
            var inline = (nodeName == "div" || nodeName == "span");
            if (!target.id) {
                target.id = "dp" + (++this.uuid)
            }
            var inst = this._newInst($(target), inline);
            inst.settings = $.extend({},
            settings || {},
            inlineSettings || {});
            if (nodeName == "input") {
                this._connectDatepicker(target, inst)
            } else {
                if (inline) {
                    this._inlineDatepicker(target, inst)
                }
            }
        },
        _newInst: function (target, inline) {
            var id = target[0].id.replace(/([:\[\]\.])/g, "\\\\$1");
            return {
                id: id,
                input: target,
                selectedDay: 0,
                selectedMonth: 0,
                selectedYear: 0,
                drawMonth: 0,
                drawYear: 0,
                inline: inline,
                dpDiv: (!inline ? this.dpDiv : $('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'))
            }
        },
        _connectDatepicker: function (target, inst) {
            var input = $(target);
            inst.trigger = $([]);
            if (input.hasClass(this.markerClassName)) {
                return
            }
            var appendText = this._get(inst, "appendText");
            var isRTL = this._get(inst, "isRTL");
            if (appendText) {
                input[isRTL ? "before" : "after"]('<span class="' + this._appendClass + '">' + appendText + "</span>")
            }
            var showOn = this._get(inst, "showOn");
            if (showOn == "focus" || showOn == "both") {
                input.focus(this._showDatepicker)
            }
            if (showOn == "button" || showOn == "both") {
                var buttonText = this._get(inst, "buttonText");
                var buttonImage = this._get(inst, "buttonImage");
                inst.trigger = $(this._get(inst, "buttonImageOnly") ? $("<img/>").addClass(this._triggerClass).attr({
                    src: buttonImage,
                    alt: buttonText,
                    title: buttonText
                }) : $('<button type="button"></button>').addClass(this._triggerClass).html(buttonImage == "" ? buttonText : $("<img/>").attr({
                    src: buttonImage,
                    alt: buttonText,
                    title: buttonText
                })));
                input[isRTL ? "before" : "after"](inst.trigger);
                inst.trigger.click(function () {
                    if ($.datepicker._datepickerShowing && $.datepicker._lastInput == target) {
                        $.datepicker._hideDatepicker()
                    } else {
                        $.datepicker._showDatepicker(target)
                    }
                    return false
                })
            }
            input.addClass(this.markerClassName).keydown(this._doKeyDown).keypress(this._doKeyPress).bind("setData.datepicker", function (event, key, value) {
                inst.settings[key] = value
            }).bind("getData.datepicker", function (event, key) {
                return this._get(inst, key)
            });
            $.data(target, PROP_NAME, inst)
        },
        _inlineDatepicker: function (target, inst) {
            var divSpan = $(target);
            if (divSpan.hasClass(this.markerClassName)) {
                return
            }
            divSpan.addClass(this.markerClassName).append(inst.dpDiv).bind("setData.datepicker", function (event, key, value) {
                inst.settings[key] = value
            }).bind("getData.datepicker", function (event, key) {
                return this._get(inst, key)
            });
            $.data(target, PROP_NAME, inst);
            this._setDate(inst, this._getDefaultDate(inst));
            this._updateDatepicker(inst);
            this._updateAlternate(inst)
        },
        _dialogDatepicker: function (input, dateText, onSelect, settings, pos) {
            var inst = this._dialogInst;
            if (!inst) {
                var id = "dp" + (++this.uuid);
                this._dialogInput = $('<input type="text" id="' + id + '" size="1" style="position: absolute; top: -100px;"/>');
                this._dialogInput.keydown(this._doKeyDown);
                $("body").append(this._dialogInput);
                inst = this._dialogInst = this._newInst(this._dialogInput, false);
                inst.settings = {};
                $.data(this._dialogInput[0], PROP_NAME, inst)
            }
            extendRemove(inst.settings, settings || {});
            this._dialogInput.val(dateText);
            this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
            if (!this._pos) {
                var browserWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
                var browserHeight = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
                var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
                var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
                this._pos = [(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY]
            }
            this._dialogInput.css("left", this._pos[0] + "px").css("top", this._pos[1] + "px");
            inst.settings.onSelect = onSelect;
            this._inDialog = true;
            this.dpDiv.addClass(this._dialogClass);
            this._showDatepicker(this._dialogInput[0]);
            if ($.blockUI) {
                $.blockUI(this.dpDiv)
            }
            $.data(this._dialogInput[0], PROP_NAME, inst);
            return this
        },
        _destroyDatepicker: function (target) {
            var $target = $(target);
            var inst = $.data(target, PROP_NAME);
            if (!$target.hasClass(this.markerClassName)) {
                return
            }
            var nodeName = target.nodeName.toLowerCase();
            $.removeData(target, PROP_NAME);
            if (nodeName == "input") {
                inst.trigger.remove();
                $target.siblings("." + this._appendClass).remove().end().removeClass(this.markerClassName).unbind("focus", this._showDatepicker).unbind("keydown", this._doKeyDown).unbind("keypress", this._doKeyPress)
            } else {
                if (nodeName == "div" || nodeName == "span") {
                    $target.removeClass(this.markerClassName).empty()
                }
            }
        },
        _enableDatepicker: function (target) {
            var $target = $(target);
            var inst = $.data(target, PROP_NAME);
            if (!$target.hasClass(this.markerClassName)) {
                return
            }
            var nodeName = target.nodeName.toLowerCase();
            if (nodeName == "input") {
                target.disabled = false;
                inst.trigger.filter("button").each(function () {
                    this.disabled = false
                }).end().filter("img").css({
                    opacity: "1.0",
                    cursor: ""
                })
            } else {
                if (nodeName == "div" || nodeName == "span") {
                    var inline = $target.children("." + this._inlineClass);
                    inline.children().removeClass("ui-state-disabled")
                }
            }
            this._disabledInputs = $.map(this._disabledInputs, function (value) {
                return (value == target ? null : value)
            })
        },
        _disableDatepicker: function (target) {
            var $target = $(target);
            var inst = $.data(target, PROP_NAME);
            if (!$target.hasClass(this.markerClassName)) {
                return
            }
            var nodeName = target.nodeName.toLowerCase();
            if (nodeName == "input") {
                target.disabled = true;
                inst.trigger.filter("button").each(function () {
                    this.disabled = true
                }).end().filter("img").css({
                    opacity: "0.5",
                    cursor: "default"
                })
            } else {
                if (nodeName == "div" || nodeName == "span") {
                    var inline = $target.children("." + this._inlineClass);
                    inline.children().addClass("ui-state-disabled")
                }
            }
            this._disabledInputs = $.map(this._disabledInputs, function (value) {
                return (value == target ? null : value)
            });
            this._disabledInputs[this._disabledInputs.length] = target
        },
        _isDisabledDatepicker: function (target) {
            if (!target) {
                return false
            }
            for (var i = 0; i < this._disabledInputs.length; i++) {
                if (this._disabledInputs[i] == target) {
                    return true
                }
            }
            return false
        },
        _getInst: function (target) {
            try {
                return $.data(target, PROP_NAME)
            } catch(err) {
                throw "Missing instance data for this datepicker"
            }
        },
        _optionDatepicker: function (target, name, value) {
            var settings = name || {};
            if (typeof name == "string") {
                settings = {};
                settings[name] = value
            }
            var inst = this._getInst(target);
            if (inst) {
                if (this._curInst == inst) {
                    this._hideDatepicker(null)
                }
                extendRemove(inst.settings, settings);
                var date = new Date();
                extendRemove(inst, {
                    rangeStart: null,
                    endDay: null,
                    endMonth: null,
                    endYear: null,
                    selectedDay: date.getDate(),
                    selectedMonth: date.getMonth(),
                    selectedYear: date.getFullYear(),
                    currentDay: date.getDate(),
                    currentMonth: date.getMonth(),
                    currentYear: date.getFullYear(),
                    drawMonth: date.getMonth(),
                    drawYear: date.getFullYear()
                });
                this._updateDatepicker(inst)
            }
        },
        _changeDatepicker: function (target, name, value) {
            this._optionDatepicker(target, name, value)
        },
        _refreshDatepicker: function (target) {
            var inst = this._getInst(target);
            if (inst) {
                this._updateDatepicker(inst)
            }
        },
        _setDateDatepicker: function (target, date, endDate) {
            var inst = this._getInst(target);
            if (inst) {
                this._setDate(inst, date, endDate);
                this._updateDatepicker(inst);
                this._updateAlternate(inst)
            }
        },
        _getDateDatepicker: function (target) {
            var inst = this._getInst(target);
            if (inst && !inst.inline) {
                this._setDateFromField(inst)
            }
            return (inst ? this._getDate(inst) : null)
        },
        _doKeyDown: function (event) {
            var inst = $.datepicker._getInst(event.target);
            var handled = true;
            var isRTL = inst.dpDiv.is(".ui-datepicker-rtl");
            inst._keyEvent = true;
            if ($.datepicker._datepickerShowing) {
                switch (event.keyCode) {
                case 9:
                    $.datepicker._hideDatepicker(null, "");
                    break;
                case 13:
                    var sel = $("td." + $.datepicker._dayOverClass + ", td." + $.datepicker._currentClass, inst.dpDiv);
                    if (sel[0]) {
                        $.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0])
                    } else {
                        $.datepicker._hideDatepicker(null, $.datepicker._get(inst, "duration"))
                    }
                    return false;
                    break;
                case 27:
                    $.datepicker._hideDatepicker(null, $.datepicker._get(inst, "duration"));
                    break;
                case 33:
                    $.datepicker._adjustDate(event.target, (event.ctrlKey ? -$.datepicker._get(inst, "stepBigMonths") : -$.datepicker._get(inst, "stepMonths")), "M");
                    break;
                case 34:
                    $.datepicker._adjustDate(event.target, (event.ctrlKey ? +$.datepicker._get(inst, "stepBigMonths") : +$.datepicker._get(inst, "stepMonths")), "M");
                    break;
                case 35:
                    if (event.ctrlKey || event.metaKey) {
                        $.datepicker._clearDate(event.target)
                    }
                    handled = event.ctrlKey || event.metaKey;
                    break;
                case 36:
                    if (event.ctrlKey || event.metaKey) {
                        $.datepicker._gotoToday(event.target)
                    }
                    handled = event.ctrlKey || event.metaKey;
                    break;
                case 37:
                    if (event.ctrlKey || event.metaKey) {
                        $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), "D")
                    }
                    handled = event.ctrlKey || event.metaKey;
                    if (event.originalEvent.altKey) {
                        $.datepicker._adjustDate(event.target, (event.ctrlKey ? -$.datepicker._get(inst, "stepBigMonths") : -$.datepicker._get(inst, "stepMonths")), "M")
                    }
                    break;
                case 38:
                    if (event.ctrlKey || event.metaKey) {
                        $.datepicker._adjustDate(event.target, -7, "D")
                    }
                    handled = event.ctrlKey || event.metaKey;
                    break;
                case 39:
                    if (event.ctrlKey || event.metaKey) {
                        $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), "D")
                    }
                    handled = event.ctrlKey || event.metaKey;
                    if (event.originalEvent.altKey) {
                        $.datepicker._adjustDate(event.target, (event.ctrlKey ? +$.datepicker._get(inst, "stepBigMonths") : +$.datepicker._get(inst, "stepMonths")), "M")
                    }
                    break;
                case 40:
                    if (event.ctrlKey || event.metaKey) {
                        $.datepicker._adjustDate(event.target, +7, "D")
                    }
                    handled = event.ctrlKey || event.metaKey;
                    break;
                default:
                    handled = false
                }
            } else {
                if (event.keyCode == 36 && event.ctrlKey) {
                    $.datepicker._showDatepicker(this)
                } else {
                    handled = false
                }
            }
            if (handled) {
                event.preventDefault();
                event.stopPropagation()
            }
        },
        _doKeyPress: function (event) {
            var inst = $.datepicker._getInst(event.target);
            if ($.datepicker._get(inst, "constrainInput")) {
                var chars = $.datepicker._possibleChars($.datepicker._get(inst, "dateFormat"));
                var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
                return event.ctrlKey || (chr < " " || !chars || chars.indexOf(chr) > -1)
            }
        },
        _showDatepicker: function (input) {
            input = input.target || input;
            if (input.nodeName.toLowerCase() != "input") {
                input = $("input", input.parentNode)[0]
            }
            if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) {
                return
            }
            var inst = $.datepicker._getInst(input);
            var beforeShow = $.datepicker._get(inst, "beforeShow");
            extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
            $.datepicker._hideDatepicker(null, "");
            $.datepicker._lastInput = input;
            $.datepicker._setDateFromField(inst);
            if ($.datepicker._inDialog) {
                input.value = ""
            }
            if (!$.datepicker._pos) {
                $.datepicker._pos = $.datepicker._findPos(input);
                $.datepicker._pos[1] += input.offsetHeight
            }
            var isFixed = false;
            $(input).parents().each(function () {
                isFixed |= $(this).css("position") == "fixed";
                return !isFixed
            });
            if (isFixed && $.browser.opera) {
                $.datepicker._pos[0] -= document.documentElement.scrollLeft;
                $.datepicker._pos[1] -= document.documentElement.scrollTop
            }
            var offset = {
                left: $.datepicker._pos[0],
                top: $.datepicker._pos[1]
            };
            $.datepicker._pos = null;
            inst.rangeStart = null;
            inst.dpDiv.css({
                position: "absolute",
                display: "block",
                top: "-1000px"
            });
            $.datepicker._updateDatepicker(inst);
            offset = $.datepicker._checkOffset(inst, offset, isFixed);
            inst.dpDiv.css({
                position: ($.datepicker._inDialog && $.blockUI ? "static" : (isFixed ? "fixed" : "absolute")),
                display: "none",
                left: offset.left + "px",
                top: offset.top + "px"
            });
            if (!inst.inline) {
                var showAnim = $.datepicker._get(inst, "showAnim") || "show";
                var duration = $.datepicker._get(inst, "duration");
                var postProcess = function () {
                    $.datepicker._datepickerShowing = true;
                    if ($.browser.msie && parseInt($.browser.version, 10) < 7) {
                        $("iframe.ui-datepicker-cover").css({
                            width: inst.dpDiv.width() + 4,
                            height: inst.dpDiv.height() + 4
                        })
                    }
                };
                if ($.effects && $.effects[showAnim]) {
                    inst.dpDiv.show(showAnim, $.datepicker._get(inst, "showOptions"), duration, postProcess)
                } else {
                    inst.dpDiv[showAnim](duration, postProcess)
                }
                if (duration == "") {
                    postProcess()
                }
                if (inst.input[0].type != "hidden") {
                    inst.input[0].focus()
                }
                $.datepicker._curInst = inst
            }
        },
        _updateDatepicker: function (inst) {
            var dims = {
                width: inst.dpDiv.width() + 4,
                height: inst.dpDiv.height() + 4
            };
            var self = this;
            inst.dpDiv.empty().append(this._generateHTML(inst)).find("iframe.ui-datepicker-cover").css({
                width: dims.width,
                height: dims.height
            }).end().find("button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a").bind("mouseout", function () {
                $(this).removeClass("ui-state-hover");
                if (this.className.indexOf("ui-datepicker-prev") != -1) {
                    $(this).removeClass("ui-datepicker-prev-hover")
                }
                if (this.className.indexOf("ui-datepicker-next") != -1) {
                    $(this).removeClass("ui-datepicker-next-hover")
                }
            }).bind("mouseover", function () {
                if (!self._isDisabledDatepicker(inst.inline ? inst.dpDiv.parent()[0] : inst.input[0])) {
                    $(this).parents(".ui-datepicker-calendar").find("a").removeClass("ui-state-hover");
                    $(this).addClass("ui-state-hover");
                    if (this.className.indexOf("ui-datepicker-prev") != -1) {
                        $(this).addClass("ui-datepicker-prev-hover")
                    }
                    if (this.className.indexOf("ui-datepicker-next") != -1) {
                        $(this).addClass("ui-datepicker-next-hover")
                    }
                }
            }).end().find("." + this._dayOverClass + " a").trigger("mouseover").end();
            var numMonths = this._getNumberOfMonths(inst);
            var cols = numMonths[1];
            var width = 17;
            if (cols > 1) {
                inst.dpDiv.addClass("ui-datepicker-multi-" + cols).css("width", (width * cols) + "em")
            } else {
                inst.dpDiv.removeClass("ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4").width("")
            }
            inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? "add" : "remove") + "Class"]("ui-datepicker-multi");
            inst.dpDiv[(this._get(inst, "isRTL") ? "add" : "remove") + "Class"]("ui-datepicker-rtl");
            if (inst.input && inst.input[0].type != "hidden" && inst == $.datepicker._curInst) {
                $(inst.input[0]).focus()
            }
        },
        _checkOffset: function (inst, offset, isFixed) {
            var dpWidth = inst.dpDiv.outerWidth();
            var dpHeight = inst.dpDiv.outerHeight();
            var inputWidth = inst.input ? inst.input.outerWidth() : 0;
            var inputHeight = inst.input ? inst.input.outerHeight() : 0;
            var viewWidth = (window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth) + $(document).scrollLeft();
            var viewHeight = (window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight) + $(document).scrollTop();
            offset.left -= (this._get(inst, "isRTL") ? (dpWidth - inputWidth) : 0);
            offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
            offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
            offset.left -= (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ? Math.abs(offset.left + dpWidth - viewWidth) : 0;
            offset.top -= (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ? Math.abs(offset.top + dpHeight + inputHeight * 2 - viewHeight) : 0;
            return offset
        },
        _findPos: function (obj) {
            while (obj && (obj.type == "hidden" || obj.nodeType != 1)) {
                obj = obj.nextSibling
            }
            var position = $(obj).offset();
            return [position.left, position.top]
        },
        _hideDatepicker: function (input, duration) {
            var inst = this._curInst;
            if (!inst || (input && inst != $.data(input, PROP_NAME))) {
                return
            }
            if (inst.stayOpen) {
                this._selectDate("#" + inst.id, this._formatDate(inst, inst.currentDay, inst.currentMonth, inst.currentYear))
            }
            inst.stayOpen = false;
            if (this._datepickerShowing) {
                duration = (duration != null ? duration : this._get(inst, "duration"));
                var showAnim = this._get(inst, "showAnim");
                var postProcess = function () {
                    $.datepicker._tidyDialog(inst)
                };
                if (duration != "" && $.effects && $.effects[showAnim]) {
                    inst.dpDiv.hide(showAnim, $.datepicker._get(inst, "showOptions"), duration, postProcess)
                } else {
                    inst.dpDiv[(duration == "" ? "hide" : (showAnim == "slideDown" ? "slideUp" : (showAnim == "fadeIn" ? "fadeOut" : "hide")))](duration, postProcess)
                }
                if (duration == "") {
                    this._tidyDialog(inst)
                }
                var onClose = this._get(inst, "onClose");
                if (onClose) {
                    onClose.apply((inst.input ? inst.input[0] : null), [(inst.input ? inst.input.val() : ""), inst])
                }
                this._datepickerShowing = false;
                this._lastInput = null;
                if (this._inDialog) {
                    this._dialogInput.css({
                        position: "absolute",
                        left: "0",
                        top: "-100px"
                    });
                    if ($.blockUI) {
                        $.unblockUI();
                        $("body").append(this.dpDiv)
                    }
                }
                this._inDialog = false
            }
            this._curInst = null
        },
        _tidyDialog: function (inst) {
            inst.dpDiv.removeClass(this._dialogClass).unbind(".ui-datepicker-calendar")
        },
        _checkExternalClick: function (event) {
            if (!$.datepicker._curInst) {
                return
            }
            var $target = $(event.target);
            if (($target.parents("#" + $.datepicker._mainDivId).length == 0) && !$target.hasClass($.datepicker.markerClassName) && !$target.hasClass($.datepicker._triggerClass) && $.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI)) {
                $.datepicker._hideDatepicker(null, "")
            }
        },
        _adjustDate: function (id, offset, period) {
            var target = $(id);
            var inst = this._getInst(target[0]);
            if (this._isDisabledDatepicker(target[0])) {
                return
            }
            this._adjustInstDate(inst, offset + (period == "M" ? this._get(inst, "showCurrentAtPos") : 0), period);
            this._updateDatepicker(inst)
        },
        _gotoToday: function (id) {
            var target = $(id);
            var inst = this._getInst(target[0]);
            if (this._get(inst, "gotoCurrent") && inst.currentDay) {
                inst.selectedDay = inst.currentDay;
                inst.drawMonth = inst.selectedMonth = inst.currentMonth;
                inst.drawYear = inst.selectedYear = inst.currentYear
            } else {
                var date = new Date();
                inst.selectedDay = date.getDate();
                inst.drawMonth = inst.selectedMonth = date.getMonth();
                inst.drawYear = inst.selectedYear = date.getFullYear()
            }
            this._notifyChange(inst);
            this._adjustDate(target)
        },
        _selectMonthYear: function (id, select, period) {
            var target = $(id);
            var inst = this._getInst(target[0]);
            inst._selectingMonthYear = false;
            inst["selected" + (period == "M" ? "Month" : "Year")] = inst["draw" + (period == "M" ? "Month" : "Year")] = parseInt(select.options[select.selectedIndex].value, 10);
            this._notifyChange(inst);
            this._adjustDate(target)
        },
        _clickMonthYear: function (id) {
            var target = $(id);
            var inst = this._getInst(target[0]);
            if (inst.input && inst._selectingMonthYear && !$.browser.msie) {
                inst.input[0].focus()
            }
            inst._selectingMonthYear = !inst._selectingMonthYear
        },
        _selectDay: function (id, month, year, td) {
            var target = $(id);
            if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
                return
            }
            var inst = this._getInst(target[0]);
            inst.selectedDay = inst.currentDay = $("a", td).html();
            inst.selectedMonth = inst.currentMonth = month;
            inst.selectedYear = inst.currentYear = year;
            if (inst.stayOpen) {
                inst.endDay = inst.endMonth = inst.endYear = null
            }
            this._selectDate(id, this._formatDate(inst, inst.currentDay, inst.currentMonth, inst.currentYear));
            if (inst.stayOpen) {
                inst.rangeStart = this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay));
                this._updateDatepicker(inst)
            }
        },
        _clearDate: function (id) {
            var target = $(id);
            var inst = this._getInst(target[0]);
            inst.stayOpen = false;
            inst.endDay = inst.endMonth = inst.endYear = inst.rangeStart = null;
            this._selectDate(target, "")
        },
        _selectDate: function (id, dateStr) {
            var target = $(id);
            var inst = this._getInst(target[0]);
            dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
            if (inst.input) {
                inst.input.val(dateStr)
            }
            this._updateAlternate(inst);
            var onSelect = this._get(inst, "onSelect");
            if (onSelect) {
                onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst])
            } else {
                if (inst.input) {
                    inst.input.trigger("change")
                }
            }
            if (inst.inline) {
                this._updateDatepicker(inst)
            } else {
                if (!inst.stayOpen) {
                    this._hideDatepicker(null, this._get(inst, "duration"));
                    this._lastInput = inst.input[0];
                    if (typeof(inst.input[0]) != "object") {
                        inst.input[0].focus()
                    }
                    this._lastInput = null
                }
            }
        },
        _updateAlternate: function (inst) {
            var altField = this._get(inst, "altField");
            if (altField) {
                var altFormat = this._get(inst, "altFormat") || this._get(inst, "dateFormat");
                var date = this._getDate(inst);
                dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
                $(altField).each(function () {
                    $(this).val(dateStr)
                })
            }
        },
        noWeekends: function (date) {
            var day = date.getDay();
            return [(day > 0 && day < 6), ""]
        },
        iso8601Week: function (date) {
            var checkDate = new Date(date.getFullYear(), date.getMonth(), date.getDate());
            var firstMon = new Date(checkDate.getFullYear(), 1 - 1, 4);
            var firstDay = firstMon.getDay() || 7;
            firstMon.setDate(firstMon.getDate() + 1 - firstDay);
            if (firstDay < 4 && checkDate < firstMon) {
                checkDate.setDate(checkDate.getDate() - 3);
                return $.datepicker.iso8601Week(checkDate)
            } else {
                if (checkDate > new Date(checkDate.getFullYear(), 12 - 1, 28)) {
                    firstDay = new Date(checkDate.getFullYear() + 1, 1 - 1, 4).getDay() || 7;
                    if (firstDay > 4 && (checkDate.getDay() || 7) < firstDay - 3) {
                        return 1
                    }
                }
            }
            return Math.floor(((checkDate - firstMon) / 86400000) / 7) + 1
        },
        parseDate: function (format, value, settings) {
            if (format == null || value == null) {
                throw "Invalid arguments"
            }
            value = (typeof value == "object" ? value.toString() : value + "");
            if (value == "") {
                return null
            }
            var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
            var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
            var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
            var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
            var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
            var year = -1;
            var month = -1;
            var day = -1;
            var doy = -1;
            var literal = false;
            var lookAhead = function (match) {
                var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
                if (matches) {
                    iFormat++
                }
                return matches
            };
            var getNumber = function (match) {
                lookAhead(match);
                var origSize = (match == "@" ? 14 : (match == "y" ? 4 : (match == "o" ? 3 : 2)));
                var size = origSize;
                var num = 0;
                while (size > 0 && iValue < value.length && value.charAt(iValue) >= "0" && value.charAt(iValue) <= "9") {
                    num = num * 10 + parseInt(value.charAt(iValue++), 10);
                    size--
                }
                if (size == origSize) {
                    throw "Missing number at position " + iValue
                }
                return num
            };
            var getName = function (match, shortNames, longNames) {
                var names = (lookAhead(match) ? longNames : shortNames);
                var size = 0;
                for (var j = 0; j < names.length; j++) {
                    size = Math.max(size, names[j].length)
                }
                var name = "";
                var iInit = iValue;
                while (size > 0 && iValue < value.length) {
                    name += value.charAt(iValue++);
                    for (var i = 0; i < names.length; i++) {
                        if (name == names[i]) {
                            return i + 1
                        }
                    }
                    size--
                }
                throw "Unknown name at position " + iInit
            };
            var checkLiteral = function () {
                if (value.charAt(iValue) != format.charAt(iFormat)) {
                    throw "Unexpected literal at position " + iValue
                }
                iValue++
            };
            var iValue = 0;
            for (var iFormat = 0; iFormat < format.length; iFormat++) {
                if (literal) {
                    if (format.charAt(iFormat) == "'" && !lookAhead("'")) {
                        literal = false
                    } else {
                        checkLiteral()
                    }
                } else {
                    switch (format.charAt(iFormat)) {
                    case "d":
                        day = getNumber("d");
                        break;
                    case "D":
                        getName("D", dayNamesShort, dayNames);
                        break;
                    case "o":
                        doy = getNumber("o");
                        break;
                    case "m":
                        month = getNumber("m");
                        break;
                    case "M":
                        month = getName("M", monthNamesShort, monthNames);
                        break;
                    case "y":
                        year = getNumber("y");
                        break;
                    case "@":
                        var date = new Date(getNumber("@"));
                        year = date.getFullYear();
                        month = date.getMonth() + 1;
                        day = date.getDate();
                        break;
                    case "'":
                        if (lookAhead("'")) {
                            checkLiteral()
                        } else {
                            literal = true
                        }
                        break;
                    default:
                        checkLiteral()
                    }
                }
            }
            if (year == -1) {
                year = new Date().getFullYear()
            } else {
                if (year < 100) {
                    year += new Date().getFullYear() - new Date().getFullYear() % 100 + (year <= shortYearCutoff ? 0 : -100)
                }
            }
            if (doy > -1) {
                month = 1;
                day = doy;
                do {
                    var dim = this._getDaysInMonth(year, month - 1);
                    if (day <= dim) {
                        break
                    }
                    month++;
                    day -= dim
                } while (true)
            }
            var date = this._daylightSavingAdjust(new Date(year, month - 1, day));
            if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day) {
                throw "Invalid date"
            }
            return date
        },
        ATOM: "yy-mm-dd",
        COOKIE: "D, dd M yy",
        ISO_8601: "yy-mm-dd",
        RFC_822: "D, d M y",
        RFC_850: "DD, dd-M-y",
        RFC_1036: "D, d M y",
        RFC_1123: "D, d M yy",
        RFC_2822: "D, d M yy",
        RSS: "D, d M y",
        TIMESTAMP: "@",
        W3C: "yy-mm-dd",
        formatDate: function (format, date, settings) {
            if (!date) {
                return ""
            }
            var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
            var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
            var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
            var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
            var lookAhead = function (match) {
                var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
                if (matches) {
                    iFormat++
                }
                return matches
            };
            var formatNumber = function (match, value, len) {
                var num = "" + value;
                if (lookAhead(match)) {
                    while (num.length < len) {
                        num = "0" + num
                    }
                }
                return num
            };
            var formatName = function (match, value, shortNames, longNames) {
                return (lookAhead(match) ? longNames[value] : shortNames[value])
            };
            var output = "";
            var literal = false;
            if (date) {
                for (var iFormat = 0; iFormat < format.length; iFormat++) {
                    if (literal) {
                        if (format.charAt(iFormat) == "'" && !lookAhead("'")) {
                            literal = false
                        } else {
                            output += format.charAt(iFormat)
                        }
                    } else {
                        switch (format.charAt(iFormat)) {
                        case "d":
                            output += formatNumber("d", date.getDate(), 2);
                            break;
                        case "D":
                            output += formatName("D", date.getDay(), dayNamesShort, dayNames);
                            break;
                        case "o":
                            var doy = date.getDate();
                            for (var m = date.getMonth() - 1; m >= 0; m--) {
                                doy += this._getDaysInMonth(date.getFullYear(), m)
                            }
                            output += formatNumber("o", doy, 3);
                            break;
                        case "m":
                            output += formatNumber("m", date.getMonth() + 1, 2);
                            break;
                        case "M":
                            output += formatName("M", date.getMonth(), monthNamesShort, monthNames);
                            break;
                        case "y":
                            output += (lookAhead("y") ? date.getFullYear() : (date.getYear() % 100 < 10 ? "0" : "") + date.getYear() % 100);
                            break;
                        case "@":
                            output += date.getTime();
                            break;
                        case "'":
                            if (lookAhead("'")) {
                                output += "'"
                            } else {
                                literal = true
                            }
                            break;
                        default:
                            output += format.charAt(iFormat)
                        }
                    }
                }
            }
            return output
        },
        _possibleChars: function (format) {
            var chars = "";
            var literal = false;
            for (var iFormat = 0; iFormat < format.length; iFormat++) {
                if (literal) {
                    if (format.charAt(iFormat) == "'" && !lookAhead("'")) {
                        literal = false
                    } else {
                        chars += format.charAt(iFormat)
                    }
                } else {
                    switch (format.charAt(iFormat)) {
                    case "d":
                    case "m":
                    case "y":
                    case "@":
                        chars += "0123456789";
                        break;
                    case "D":
                    case "M":
                        return null;
                    case "'":
                        if (lookAhead("'")) {
                            chars += "'"
                        } else {
                            literal = true
                        }
                        break;
                    default:
                        chars += format.charAt(iFormat)
                    }
                }
            }
            return chars
        },
        _get: function (inst, name) {
            return inst.settings[name] !== undefined ? inst.settings[name] : this._defaults[name]
        },
        _setDateFromField: function (inst) {
            var dateFormat = this._get(inst, "dateFormat");
            var dates = inst.input ? inst.input.val() : null;
            inst.endDay = inst.endMonth = inst.endYear = null;
            var date = defaultDate = this._getDefaultDate(inst);
            var settings = this._getFormatConfig(inst);
            try {
                date = this.parseDate(dateFormat, dates, settings) || defaultDate
            } catch(event) {
                this.log(event);
                date = defaultDate
            }
            inst.selectedDay = date.getDate();
            inst.drawMonth = inst.selectedMonth = date.getMonth();
            inst.drawYear = inst.selectedYear = date.getFullYear();
            inst.currentDay = (dates ? date.getDate() : 0);
            inst.currentMonth = (dates ? date.getMonth() : 0);
            inst.currentYear = (dates ? date.getFullYear() : 0);
            this._adjustInstDate(inst)
        },
        _getDefaultDate: function (inst) {
            var date = this._determineDate(this._get(inst, "defaultDate"), new Date());
            var minDate = this._getMinMaxDate(inst, "min", true);
            var maxDate = this._getMinMaxDate(inst, "max");
            date = (minDate && date < minDate ? minDate : date);
            date = (maxDate && date > maxDate ? maxDate : date);
            return date
        },
        _determineDate: function (date, defaultDate) {
            var offsetNumeric = function (offset) {
                var date = new Date();
                date.setDate(date.getDate() + offset);
                return date
            };
            var offsetString = function (offset, getDaysInMonth) {
                var date = new Date();
                var year = date.getFullYear();
                var month = date.getMonth();
                var day = date.getDate();
                var pattern = /([+-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g;
                var matches = pattern.exec(offset);
                while (matches) {
                    switch (matches[2] || "d") {
                    case "d":
                    case "D":
                        day += parseInt(matches[1], 10);
                        break;
                    case "w":
                    case "W":
                        day += parseInt(matches[1], 10) * 7;
                        break;
                    case "m":
                    case "M":
                        month += parseInt(matches[1], 10);
                        day = Math.min(day, getDaysInMonth(year, month));
                        break;
                    case "y":
                    case "Y":
                        year += parseInt(matches[1], 10);
                        day = Math.min(day, getDaysInMonth(year, month));
                        break
                    }
                    matches = pattern.exec(offset)
                }
                return new Date(year, month, day)
            };
            date = (date == null ? defaultDate : (typeof date == "string" ? offsetString(date, this._getDaysInMonth) : (typeof date == "number" ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : date)));
            date = (date && date.toString() == "Invalid Date" ? defaultDate : date);
            if (date) {
                date.setHours(0);
                date.setMinutes(0);
                date.setSeconds(0);
                date.setMilliseconds(0)
            }
            return this._daylightSavingAdjust(date)
        },
        _daylightSavingAdjust: function (date) {
            if (!date) {
                return null
            }
            date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
            return date
        },
        _setDate: function (inst, date, endDate) {
            var clear = !(date);
            var origMonth = inst.selectedMonth;
            var origYear = inst.selectedYear;
            date = this._determineDate(date, new Date());
            inst.selectedDay = inst.currentDay = date.getDate();
            inst.drawMonth = inst.selectedMonth = inst.currentMonth = date.getMonth();
            inst.drawYear = inst.selectedYear = inst.currentYear = date.getFullYear();
            if (origMonth != inst.selectedMonth || origYear != inst.selectedYear) {
                this._notifyChange(inst)
            }
            this._adjustInstDate(inst);
            if (inst.input) {
                inst.input.val(clear ? "" : this._formatDate(inst))
            }
        },
        _getDate: function (inst) {
            var startDate = (!inst.currentYear || (inst.input && inst.input.val() == "") ? null : this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
            return startDate
        },
        _generateHTML: function (inst) {
            var today = new Date();
            today = this._daylightSavingAdjust(new Date(today.getFullYear(), today.getMonth(), today.getDate()));
            var isRTL = this._get(inst, "isRTL");
            var showButtonPanel = this._get(inst, "showButtonPanel");
            var hideIfNoPrevNext = this._get(inst, "hideIfNoPrevNext");
            var navigationAsDateFormat = this._get(inst, "navigationAsDateFormat");
            var numMonths = this._getNumberOfMonths(inst);
            var showCurrentAtPos = this._get(inst, "showCurrentAtPos");
            var stepMonths = this._get(inst, "stepMonths");
            var stepBigMonths = this._get(inst, "stepBigMonths");
            var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
            var currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) : new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
            var minDate = this._getMinMaxDate(inst, "min", true);
            var maxDate = this._getMinMaxDate(inst, "max");
            var drawMonth = inst.drawMonth - showCurrentAtPos;
            var drawYear = inst.drawYear;
            if (drawMonth < 0) {
                drawMonth += 12;
                drawYear--
            }
            if (maxDate) {
                var maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(), maxDate.getMonth() - numMonths[1] + 1, maxDate.getDate()));
                maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
                while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
                    drawMonth--;
                    if (drawMonth < 0) {
                        drawMonth = 11;
                        drawYear--
                    }
                }
            }
            inst.drawMonth = drawMonth;
            inst.drawYear = drawYear;
            var prevText = this._get(inst, "prevText");
            prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText, this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)), this._getFormatConfig(inst)));
            var prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ? '<a class="ui-datepicker-prev ui-corner-all" onclick="DP_jQuery.datepicker._adjustDate(\'#' + inst.id + "', -" + stepMonths + ", 'M');\" title=\"" + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + (isRTL ? "e" : "w") + '">' + prevText + "</span></a>" : (hideIfNoPrevNext ? "" : '<a class="ui-datepicker-prev ui-corner-all ui-state-disabled" title="' + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + (isRTL ? "e" : "w") + '">' + prevText + "</span></a>"));
            var nextText = this._get(inst, "nextText");
            nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText, this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)), this._getFormatConfig(inst)));
            var next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ? '<a class="ui-datepicker-next ui-corner-all" onclick="DP_jQuery.datepicker._adjustDate(\'#' + inst.id + "', +" + stepMonths + ", 'M');\" title=\"" + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + (isRTL ? "w" : "e") + '">' + nextText + "</span></a>" : (hideIfNoPrevNext ? "" : '<a class="ui-datepicker-next ui-corner-all ui-state-disabled" title="' + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + (isRTL ? "w" : "e") + '">' + nextText + "</span></a>"));
            var currentText = this._get(inst, "currentText");
            var gotoDate = (this._get(inst, "gotoCurrent") && inst.currentDay ? currentDate : today);
            currentText = (!navigationAsDateFormat ? currentText : this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));
            var controls = (!inst.inline ? '<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" onclick="DP_jQuery.datepicker._hideDatepicker();">' + this._get(inst, "closeText") + "</button>" : "");
            var buttonPanel = (showButtonPanel) ? '<div class="ui-datepicker-buttonpane ui-widget-content">' + (isRTL ? controls : "") + (this._isInRange(inst, gotoDate) ? '<button type="button" class="ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all" onclick="DP_jQuery.datepicker._gotoToday(\'#' + inst.id + "');\">" + currentText + "</button>" : "") + (isRTL ? "" : controls) + "</div>" : "";
            var firstDay = parseInt(this._get(inst, "firstDay"), 10);
            firstDay = (isNaN(firstDay) ? 0 : firstDay);
            var dayNames = this._get(inst, "dayNames");
            var dayNamesShort = this._get(inst, "dayNamesShort");
            var dayNamesMin = this._get(inst, "dayNamesMin");
            var monthNames = this._get(inst, "monthNames");
            var monthNamesShort = this._get(inst, "monthNamesShort");
            var beforeShowDay = this._get(inst, "beforeShowDay");
            var showOtherMonths = this._get(inst, "showOtherMonths");
            var calculateWeek = this._get(inst, "calculateWeek") || this.iso8601Week;
            var endDate = inst.endDay ? this._daylightSavingAdjust(new Date(inst.endYear, inst.endMonth, inst.endDay)) : currentDate;
            var defaultDate = this._getDefaultDate(inst);
            var html = "";
            for (var row = 0; row < numMonths[0]; row++) {
                var group = "";
                for (var col = 0; col < numMonths[1]; col++) {
                    var selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
                    var cornerClass = " ui-corner-all";
                    var calender = "";
                    if (isMultiMonth) {
                        calender += '<div class="ui-datepicker-group ui-datepicker-group-';
                        switch (col) {
                        case 0:
                            calender += "first";
                            cornerClass = " ui-corner-" + (isRTL ? "right" : "left");
                            break;
                        case numMonths[1] - 1:
                            calender += "last";
                            cornerClass = " ui-corner-" + (isRTL ? "left" : "right");
                            break;
                        default:
                            calender += "middle";
                            cornerClass = "";
                            break
                        }
                        calender += '">'
                    }
                    calender += '<div class="ui-datepicker-header ui-widget-header ui-helper-clearfix' + cornerClass + '">' + (/all|left/.test(cornerClass) && row == 0 ? (isRTL ? next : prev) : "") + (/all|right/.test(cornerClass) && row == 0 ? (isRTL ? prev : next) : "") + this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate, selectedDate, row > 0 || col > 0, monthNames, monthNamesShort) + '</div><table class="ui-datepicker-calendar"><thead><tr>';
                    var thead = "";
                    for (var dow = 0; dow < 7; dow++) {
                        var day = (dow + firstDay) % 7;
                        thead += "<th" + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end"' : "") + '><span title="' + dayNames[day] + '">' + dayNamesMin[day] + "</span></th>"
                    }
                    calender += thead + "</tr></thead><tbody>";
                    var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
                    if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth) {
                        inst.selectedDay = Math.min(inst.selectedDay, daysInMonth)
                    }
                    var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
                    var numRows = (isMultiMonth ? 6 : Math.ceil((leadDays + daysInMonth) / 7));
                    var printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
                    for (var dRow = 0; dRow < numRows; dRow++) {
                        calender += "<tr>";
                        var tbody = "";
                        for (var dow = 0; dow < 7; dow++) {
                            var daySettings = (beforeShowDay ? beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, ""]);
                            var otherMonth = (printDate.getMonth() != drawMonth);
                            var unselectable = otherMonth || !daySettings[0] || (minDate && printDate < minDate) || (maxDate && printDate > maxDate);
                            tbody += '<td class="' + ((dow + firstDay + 6) % 7 >= 5 ? " ui-datepicker-week-end" : "") + (otherMonth ? " ui-datepicker-other-month" : "") + ((printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth && inst._keyEvent) || (defaultDate.getTime() == printDate.getTime() && defaultDate.getTime() == selectedDate.getTime()) ? " " + this._dayOverClass : "") + (unselectable ? " " + this._unselectableClass + " ui-state-disabled" : "") + (otherMonth && !showOtherMonths ? "" : " " + daySettings[1] + (printDate.getTime() >= currentDate.getTime() && printDate.getTime() <= endDate.getTime() ? " " + this._currentClass : "") + (printDate.getTime() == today.getTime() ? " ui-datepicker-today" : "")) + '"' + ((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : "") + (unselectable ? "" : " onclick=\"DP_jQuery.datepicker._selectDay('#" + inst.id + "'," + drawMonth + "," + drawYear + ', this);return false;"') + ">" + (otherMonth ? (showOtherMonths ? printDate.getDate() : "&#xa0;") : (unselectable ? '<span class="ui-state-default">' + printDate.getDate() + "</span>" : '<a class="ui-state-default' + /*(printDate.getTime() == today.getTime() ? " ui-state-highlight" : "") +*/ (printDate.getTime() >= currentDate.getTime() && printDate.getTime() <= endDate.getTime() ? " ui-state-active" : "") + '" href="#">' + printDate.getDate() + "</a>")) + "</td>";
                            printDate.setDate(printDate.getDate() + 1);
                            printDate = this._daylightSavingAdjust(printDate)
                        }
                        calender += tbody + "</tr>"
                    }
                    drawMonth++;
                    if (drawMonth > 11) {
                        drawMonth = 0;
                        drawYear++
                    }
                    calender += "</tbody></table>" + (isMultiMonth ? "</div>" + ((numMonths[0] > 0 && col == numMonths[1] - 1) ? '<div class="ui-datepicker-row-break"></div>' : "") : "");
                    group += calender
                }
                html += group
            }
            html += buttonPanel + ($.browser.msie && parseInt($.browser.version, 10) < 7 && !inst.inline ? '<iframe src="javascript:false;" class="ui-datepicker-cover" frameborder="0"></iframe>' : "");
            inst._keyEvent = false;
            return html
        },
        _generateMonthYearHeader: function (inst, drawMonth, drawYear, minDate, maxDate, selectedDate, secondary, monthNames, monthNamesShort) {
            minDate = (inst.rangeStart && minDate && selectedDate < minDate ? selectedDate : minDate);
            var changeMonth = this._get(inst, "changeMonth");
            var changeYear = this._get(inst, "changeYear");
            var showMonthAfterYear = this._get(inst, "showMonthAfterYear");
            var html = '<div class="ui-datepicker-title">';
            var monthHtml = "";
            if (secondary || !changeMonth) {
                monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + "</span> "
            } else {
                var inMinYear = (minDate && minDate.getFullYear() == drawYear);
                var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
                monthHtml += '<select class="ui-datepicker-month" onchange="DP_jQuery.datepicker._selectMonthYear(\'#' + inst.id + "', this, 'M');\" onclick=\"DP_jQuery.datepicker._clickMonthYear('#" + inst.id + "');\">";
                for (var month = 0; month < 12; month++) {
                    if ((!inMinYear || month >= minDate.getMonth()) && (!inMaxYear || month <= maxDate.getMonth())) {
                        monthHtml += '<option value="' + month + '"' + (month == drawMonth ? ' selected="selected"' : "") + ">" + monthNamesShort[month] + "</option>"
                    }
                }
                monthHtml += "</select>"
            }
            if (!showMonthAfterYear) {
                html += monthHtml + ((secondary || changeMonth || changeYear) && (!(changeMonth && changeYear)) ? "&#xa0;" : "")
            }
            if (secondary || !changeYear) {
                html += '<span class="ui-datepicker-year">' + drawYear + "</span>"
            } else {
                var years = this._get(inst, "yearRange").split(":");
                var year = 0;
                var endYear = 0;
                if (years.length != 2) {
                    year = drawYear - 10;
                    endYear = drawYear + 10
                } else {
                    if (years[0].charAt(0) == "+" || years[0].charAt(0) == "-") {
                        year = drawYear + parseInt(years[0], 10);
                        endYear = drawYear + parseInt(years[1], 10)
                    } else {
                        year = parseInt(years[0], 10);
                        endYear = parseInt(years[1], 10)
                    }
                }
                year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
                endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
                html += '<select class="ui-datepicker-year" onchange="DP_jQuery.datepicker._selectMonthYear(\'#' + inst.id + "', this, 'Y');\" onclick=\"DP_jQuery.datepicker._clickMonthYear('#" + inst.id + "');\">";
                for (; year <= endYear; year++) {
                    html += '<option value="' + year + '"' + (year == drawYear ? ' selected="selected"' : "") + ">" + year + "</option>"
                }
                html += "</select>"
            }
            if (showMonthAfterYear) {
                html += (secondary || changeMonth || changeYear ? "&#xa0;" : "") + monthHtml
            }
            html += "</div>";
            return html
        },
        _adjustInstDate: function (inst, offset, period) {
            var year = inst.drawYear + (period == "Y" ? offset : 0);
            var month = inst.drawMonth + (period == "M" ? offset : 0);
            var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) + (period == "D" ? offset : 0);
            var date = this._daylightSavingAdjust(new Date(year, month, day));
            var minDate = this._getMinMaxDate(inst, "min", true);
            var maxDate = this._getMinMaxDate(inst, "max");
            date = (minDate && date < minDate ? minDate : date);
            date = (maxDate && date > maxDate ? maxDate : date);
            inst.selectedDay = date.getDate();
            inst.drawMonth = inst.selectedMonth = date.getMonth();
            inst.drawYear = inst.selectedYear = date.getFullYear();
            if (period == "M" || period == "Y") {
                this._notifyChange(inst)
            }
        },
        _notifyChange: function (inst) {
            var onChange = this._get(inst, "onChangeMonthYear");
            if (onChange) {
                onChange.apply((inst.input ? inst.input[0] : null), [inst.selectedYear, inst.selectedMonth + 1, inst])
            }
        },
        _getNumberOfMonths: function (inst) {
            var numMonths = this._get(inst, "numberOfMonths");
            return (numMonths == null ? [1, 1] : (typeof numMonths == "number" ? [1, numMonths] : numMonths))
        },
        _getMinMaxDate: function (inst, minMax, checkRange) {
            var date = this._determineDate(this._get(inst, minMax + "Date"), null);
            return (!checkRange || !inst.rangeStart ? date : (!date || inst.rangeStart > date ? inst.rangeStart : date))
        },
        _getDaysInMonth: function (year, month) {
            return 32 - new Date(year, month, 32).getDate()
        },
        _getFirstDayOfMonth: function (year, month) {
            return new Date(year, month, 1).getDay()
        },
        _canAdjustMonth: function (inst, offset, curYear, curMonth) {
            var numMonths = this._getNumberOfMonths(inst);
            var date = this._daylightSavingAdjust(new Date(curYear, curMonth + (offset < 0 ? offset : numMonths[1]), 1));
            if (offset < 0) {
                date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()))
            }
            return this._isInRange(inst, date)
        },
        _isInRange: function (inst, date) {
            var newMinDate = (!inst.rangeStart ? null : this._daylightSavingAdjust(new Date(inst.selectedYear, inst.selectedMonth, inst.selectedDay)));
            newMinDate = (newMinDate && inst.rangeStart < newMinDate ? inst.rangeStart : newMinDate);
            var minDate = newMinDate || this._getMinMaxDate(inst, "min");
            var maxDate = this._getMinMaxDate(inst, "max");
            return ((!minDate || date >= minDate) && (!maxDate || date <= maxDate))
        },
        _getFormatConfig: function (inst) {
            var shortYearCutoff = this._get(inst, "shortYearCutoff");
            shortYearCutoff = (typeof shortYearCutoff != "string" ? shortYearCutoff : new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
            return {
                shortYearCutoff: shortYearCutoff,
                dayNamesShort: this._get(inst, "dayNamesShort"),
                dayNames: this._get(inst, "dayNames"),
                monthNamesShort: this._get(inst, "monthNamesShort"),
                monthNames: this._get(inst, "monthNames")
            }
        },
        _formatDate: function (inst, day, month, year) {
            if (!day) {
                inst.currentDay = inst.selectedDay;
                inst.currentMonth = inst.selectedMonth;
                inst.currentYear = inst.selectedYear
            }
            var date = (day ? (typeof day == "object" ? day : this._daylightSavingAdjust(new Date(year, month, day))) : this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
            return this.formatDate(this._get(inst, "dateFormat"), date, this._getFormatConfig(inst))
        }
    });

    function extendRemove(target, props) {
        $.extend(target, props);
        for (var name in props) {
            if (props[name] == null || props[name] == undefined) {
                target[name] = props[name]
            }
        }
        return target
    }
    function isArray(a) {
        return (a && (($.browser.safari && typeof a == "object" && a.length) || (a.constructor && a.constructor.toString().match(/\Array\(\)/))))
    }
    $.fn.datepicker = function (options) {
        if (!$.datepicker.initialized) {
            $(document).mousedown($.datepicker._checkExternalClick).find("body").append($.datepicker.dpDiv);
            $.datepicker.initialized = true
        }
        var otherArgs = Array.prototype.slice.call(arguments, 1);
        if (typeof options == "string" && (options == "isDisabled" || options == "getDate")) {
            return $.datepicker["_" + options + "Datepicker"].apply($.datepicker, [this[0]].concat(otherArgs))
        }
        return this.each(function () {
            typeof options == "string" ? $.datepicker["_" + options + "Datepicker"].apply($.datepicker, [this].concat(otherArgs)) : $.datepicker._attachDatepicker(this, options)
        })
    };
    $.datepicker = new Datepicker();
    $.datepicker.initialized = false;
    $.datepicker.uuid = new Date().getTime();
    $.datepicker.version = "1.7.1";
    window.DP_jQuery = $
})(jQuery);;