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/*
 * jQuery timepicker addon
 * By: Trent Richardson [http://trentrichardson.com]
 * Version 1.2.2
 * Last Modified: 04/13/2013
 *
 * Copyright 2013 Trent Richardson
 * You may use this project under MIT or GPL licenses.
 * http://trentrichardson.com/Impromptu/GPL-LICENSE.txt
 * http://trentrichardson.com/Impromptu/MIT-LICENSE.txt
 */

/*jslint evil: true, white: false, undef: false, nomen: false */

(function ($) {

    /*
	* Lets not redefine timepicker, Prevent "Uncaught RangeError: Maximum call stack size exceeded"
	*/
    $.ui.timepicker = $.ui.timepicker || {};
    if ($.ui.timepicker.version) {
        return;
    }

    /*
	* Extend jQueryUI, get it started with our version number
	*/
    $.extend($.ui, {
        timepicker: {
            version: "1.2.2"
        }
    });

    /* 
	* Timepicker manager.
	* Use the singleton instance of this class, $.timepicker, to interact with the time picker.
	* Settings for (groups of) time pickers are maintained in an instance object,
	* allowing multiple different settings on the same page.
	*/
    var Timepicker = function () {
        this.regional = []; // Available regional settings, indexed by language code
        this.regional[''] = { // Default regional settings
            currentText: 'Now',
            closeText: 'Done',
            amNames: ['AM', 'A'],
            pmNames: ['PM', 'P'],
            timeFormat: 'HH:mm',
            timeSuffix: '',
            timeOnlyTitle: 'Choose Time',
            timeText: 'Time',
            hourText: 'Hour',
            minuteText: 'Minute',
            secondText: 'Second',
            millisecText: 'Millisecond',
            timezoneText: 'Time Zone',
            isRTL: false
        };
        this._defaults = { // Global defaults for all the datetime picker instances
            showButtonPanel: true,
            timeOnly: false,
            showHour: true,
            showMinute: true,
            showSecond: false,
            showMillisec: false,
            showTimezone: false,
            showTime: true,
            stepHour: 1,
            stepMinute: 1,
            stepSecond: 1,
            stepMillisec: 1,
            hour: 0,
            minute: 0,
            second: 0,
            millisec: 0,
            timezone: null,
            useLocalTimezone: false,
            defaultTimezone: "+0000",
            hourMin: 0,
            minuteMin: 0,
            secondMin: 0,
            millisecMin: 0,
            hourMax: 23,
            minuteMax: 59,
            secondMax: 59,
            millisecMax: 999,
            minDateTime: null,
            maxDateTime: null,
            onSelect: null,
            hourGrid: 0,
            minuteGrid: 0,
            secondGrid: 0,
            millisecGrid: 0,
            alwaysSetTime: true,
            separator: ' ',
            altFieldTimeOnly: true,
            altTimeFormat: null,
            altSeparator: null,
            altTimeSuffix: null,
            pickerTimeFormat: null,
            pickerTimeSuffix: null,
            showTimepicker: true,
            timezoneIso8601: false,
            timezoneList: null,
            addSliderAccess: false,
            sliderAccessArgs: null,
            controlType: 'slider',
            defaultValue: null,
            parse: 'strict'
        };
        $.extend(this._defaults, this.regional['']);
    };

    $.extend(Timepicker.prototype, {
        $input: null,
        $altInput: null,
        $timeObj: null,
        inst: null,
        hour_slider: null,
        minute_slider: null,
        second_slider: null,
        millisec_slider: null,
        timezone_select: null,
        hour: 0,
        minute: 0,
        second: 0,
        millisec: 0,
        timezone: null,
        defaultTimezone: "+0000",
        hourMinOriginal: null,
        minuteMinOriginal: null,
        secondMinOriginal: null,
        millisecMinOriginal: null,
        hourMaxOriginal: null,
        minuteMaxOriginal: null,
        secondMaxOriginal: null,
        millisecMaxOriginal: null,
        ampm: '',
        formattedDate: '',
        formattedTime: '',
        formattedDateTime: '',
        timezoneList: null,
        units: ['hour', 'minute', 'second', 'millisec'],
        control: null,

        /* 
		* Override the default settings for all instances of the time picker.
		* @param  settings  object - the new settings to use as defaults (anonymous object)
		* @return the manager object
		*/
        setDefaults: function (settings) {
            extendRemove(this._defaults, settings || {});
            return this;
        },

        /*
		* Create a new Timepicker instance
		*/
        _newInst: function ($input, o) {
            var tp_inst = new Timepicker(),
				inlineSettings = {},
                fns = {},
		        overrides, i;

            for (var attrName in this._defaults) {
                if (this._defaults.hasOwnProperty(attrName)) {
                    var attrValue = $input.attr('time:' + attrName);
                    if (attrValue) {
                        try {
                            inlineSettings[attrName] = eval(attrValue);
                        } catch (err) {
                            inlineSettings[attrName] = attrValue;
                        }
                    }
                }
            }
            overrides = {
                beforeShow: function (input, dp_inst) {
                    if ($.isFunction(tp_inst._defaults.evnts.beforeShow)) {
                        return tp_inst._defaults.evnts.beforeShow.call($input[0], input, dp_inst, tp_inst);
                    }
                },
                onChangeMonthYear: function (year, month, dp_inst) {
                    // Update the time as well : this prevents the time from disappearing from the $input field.
                    tp_inst._updateDateTime(dp_inst);
                    if ($.isFunction(tp_inst._defaults.evnts.onChangeMonthYear)) {
                        tp_inst._defaults.evnts.onChangeMonthYear.call($input[0], year, month, dp_inst, tp_inst);
                    }
                },
                onClose: function (dateText, dp_inst) {
                    if (tp_inst.timeDefined === true && $input.val() !== '') {
                        tp_inst._updateDateTime(dp_inst);
                    }
                    if ($.isFunction(tp_inst._defaults.evnts.onClose)) {
                        tp_inst._defaults.evnts.onClose.call($input[0], dateText, dp_inst, tp_inst);
                    }
                }
            };
            for (i in overrides) {
                if (overrides.hasOwnProperty(i)) {
                    fns[i] = o[i] || null;
                }
            }
            tp_inst._defaults = $.extend({}, this._defaults, inlineSettings, o, overrides, {
                evnts: fns,
                timepicker: tp_inst // add timepicker as a property of datepicker: $.datepicker._get(dp_inst, 'timepicker');
            });
            tp_inst.amNames = $.map(tp_inst._defaults.amNames, function (val) {
                return val.toUpperCase();
            });
            tp_inst.pmNames = $.map(tp_inst._defaults.pmNames, function (val) {
                return val.toUpperCase();
            });

            // controlType is string - key to our this._controls
            if (typeof (tp_inst._defaults.controlType) === 'string') {
                if ($.fn[tp_inst._defaults.controlType] === undefined) {
                    tp_inst._defaults.controlType = 'select';
                }
                tp_inst.control = tp_inst._controls[tp_inst._defaults.controlType];
            }
                // controlType is an object and must implement create, options, value methods
            else {
                tp_inst.control = tp_inst._defaults.controlType;
            }

            if (tp_inst._defaults.timezoneList === null) {
                var timezoneList = ['-1200', '-1100', '-1000', '-0930', '-0900', '-0800', '-0700', '-0600', '-0500', '-0430', '-0400', '-0330', '-0300', '-0200', '-0100', '+0000',
									'+0100', '+0200', '+0300', '+0330', '+0400', '+0430', '+0500', '+0530', '+0545', '+0600', '+0630', '+0700', '+0800', '+0845', '+0900', '+0930',
									'+1000', '+1030', '+1100', '+1130', '+1200', '+1245', '+1300', '+1400'];

                if (tp_inst._defaults.timezoneIso8601) {
                    timezoneList = $.map(timezoneList, function (val) {
                        return val == '+0000' ? 'Z' : (val.substring(0, 3) + ':' + val.substring(3));
                    });
                }
                tp_inst._defaults.timezoneList = timezoneList;
            }

            tp_inst.timezone = tp_inst._defaults.timezone;
            tp_inst.hour = tp_inst._defaults.hour < tp_inst._defaults.hourMin ? tp_inst._defaults.hourMin :
							tp_inst._defaults.hour > tp_inst._defaults.hourMax ? tp_inst._defaults.hourMax : tp_inst._defaults.hour;
            tp_inst.minute = tp_inst._defaults.minute < tp_inst._defaults.minuteMin ? tp_inst._defaults.minuteMin :
							tp_inst._defaults.minute > tp_inst._defaults.minuteMax ? tp_inst._defaults.minuteMax : tp_inst._defaults.minute;
            tp_inst.second = tp_inst._defaults.second < tp_inst._defaults.secondMin ? tp_inst._defaults.secondMin :
							tp_inst._defaults.second > tp_inst._defaults.secondMax ? tp_inst._defaults.secondMax : tp_inst._defaults.second;
            tp_inst.millisec = tp_inst._defaults.millisec < tp_inst._defaults.millisecMin ? tp_inst._defaults.millisecMin :
							tp_inst._defaults.millisec > tp_inst._defaults.millisecMax ? tp_inst._defaults.millisecMax : tp_inst._defaults.millisec;
            tp_inst.ampm = '';
            tp_inst.$input = $input;

            if (o.altField) {
                tp_inst.$altInput = $(o.altField).css({
                    cursor: 'pointer'
                }).focus(function () {
                    $input.trigger("focus");
                });
            }

            if (tp_inst._defaults.minDate === 0 || tp_inst._defaults.minDateTime === 0) {
                tp_inst._defaults.minDate = new Date();
            }
            if (tp_inst._defaults.maxDate === 0 || tp_inst._defaults.maxDateTime === 0) {
                tp_inst._defaults.maxDate = new Date();
            }

            // datepicker needs minDate/maxDate, timepicker needs minDateTime/maxDateTime..
            if (tp_inst._defaults.minDate !== undefined && tp_inst._defaults.minDate instanceof Date) {
                tp_inst._defaults.minDateTime = new Date(tp_inst._defaults.minDate.getTime());
            }
            if (tp_inst._defaults.minDateTime !== undefined && tp_inst._defaults.minDateTime instanceof Date) {
                tp_inst._defaults.minDate = new Date(tp_inst._defaults.minDateTime.getTime());
            }
            if (tp_inst._defaults.maxDate !== undefined && tp_inst._defaults.maxDate instanceof Date) {
                tp_inst._defaults.maxDateTime = new Date(tp_inst._defaults.maxDate.getTime());
            }
            if (tp_inst._defaults.maxDateTime !== undefined && tp_inst._defaults.maxDateTime instanceof Date) {
                tp_inst._defaults.maxDate = new Date(tp_inst._defaults.maxDateTime.getTime());
            }
            tp_inst.$input.bind('focus', function () {
                tp_inst._onFocus();
            });

            return tp_inst;
        },

        /*
		* add our sliders to the calendar
		*/
        _addTimePicker: function (dp_inst) {
            var currDT = (this.$altInput && this._defaults.altFieldTimeOnly) ? this.$input.val() + ' ' + this.$altInput.val() : this.$input.val();

            this.timeDefined = this._parseTime(currDT);
            this._limitMinMaxDateTime(dp_inst, false);
            this._injectTimePicker();
        },

        /*
		* parse the time string from input value or _setTime
		*/
        _parseTime: function (timeString, withDate) {
            if (!this.inst) {
                this.inst = $.datepicker._getInst(this.$input[0]);
            }

            if (withDate || !this._defaults.timeOnly) {
                var dp_dateFormat = $.datepicker._get(this.inst, 'dateFormat');
                try {
                    var parseRes = parseDateTimeInternal(dp_dateFormat, this._defaults.timeFormat, timeString, $.datepicker._getFormatConfig(this.inst), this._defaults);
                    if (!parseRes.timeObj) {
                        return false;
                    }
                    $.extend(this, parseRes.timeObj);
                } catch (err) {
                    $.timepicker.log("Error parsing the date/time string: " + err +
									"\ndate/time string = " + timeString +
									"\ntimeFormat = " + this._defaults.timeFormat +
									"\ndateFormat = " + dp_dateFormat);
                    return false;
                }
                return true;
            } else {
                var timeObj = $.datepicker.parseTime(this._defaults.timeFormat, timeString, this._defaults);
                if (!timeObj) {
                    return false;
                }
                $.extend(this, timeObj);
                return true;
            }
        },

        /*
		* generate and inject html for timepicker into ui datepicker
		*/
        _injectTimePicker: function () {
            var $dp = this.inst.dpDiv,
				o = this.inst.settings,
				tp_inst = this,
				litem = '',
				uitem = '',
				max = {},
				gridSize = {},
				size = null,
				i = 0,
				l = 0;

            // Prevent displaying twice
            if ($dp.find("div.ui-timepicker-div").length === 0 && o.showTimepicker) {
                var noDisplay = ' style="display:none;"',
					html = '<div class="ui-timepicker-div' + (o.isRTL ? ' ui-timepicker-rtl' : '') + '"><dl>' + '<dt class="ui_tpicker_time_label"' + ((o.showTime) ? '' : noDisplay) + '>' + o.timeText + '</dt>' +
								'<dd class="ui_tpicker_time"' + ((o.showTime) ? '' : noDisplay) + '></dd>';

                // Create the markup
                for (i = 0, l = this.units.length; i < l; i++) {
                    litem = this.units[i];
                    uitem = litem.substr(0, 1).toUpperCase() + litem.substr(1);
                    // Added by Peter Medeiros:
                    // - Figure out what the hour/minute/second max should be based on the step values.
                    // - Example: if stepMinute is 15, then minMax is 45.
                    max[litem] = parseInt((o[litem + 'Max'] - ((o[litem + 'Max'] - o[litem + 'Min']) % o['step' + uitem])), 10);
                    gridSize[litem] = 0;

                    html += '<dt class="ui_tpicker_' + litem + '_label"' + ((o['show' + uitem]) ? '' : noDisplay) + '>' + o[litem + 'Text'] + '</dt>' +
								'<dd class="ui_tpicker_' + litem + '"><div class="ui_tpicker_' + litem + '_slider"' + ((o['show' + uitem]) ? '' : noDisplay) + '></div>';

                    if (o['show' + uitem] && o[litem + 'Grid'] > 0) {
                        html += '<div style="padding-left: 1px"><table class="ui-tpicker-grid-label"><tr>';

                        if (litem == 'hour') {
                            for (var h = o[litem + 'Min']; h <= max[litem]; h += parseInt(o[litem + 'Grid'], 10)) {
                                gridSize[litem]++;
                                var tmph = $.datepicker.formatTime(useAmpm(o.pickerTimeFormat || o.timeFormat) ? 'hht' : 'HH', { hour: h }, o);
                                html += '<td data-for="' + litem + '">' + tmph + '</td>';
                            }
                        }
                        else {
                            for (var m = o[litem + 'Min']; m <= max[litem]; m += parseInt(o[litem + 'Grid'], 10)) {
                                gridSize[litem]++;
                                html += '<td data-for="' + litem + '">' + ((m < 10) ? '0' : '') + m + '</td>';
                            }
                        }

                        html += '</tr></table></div>';
                    }
                    html += '</dd>';
                }

                // Timezone
                html += '<dt class="ui_tpicker_timezone_label"' + ((o.showTimezone) ? '' : noDisplay) + '>' + o.timezoneText + '</dt>';
                html += '<dd class="ui_tpicker_timezone" ' + ((o.showTimezone) ? '' : noDisplay) + '></dd>';

                // Create the elements from string
                html += '</dl></div>';
                var $tp = $(html);

                // if we only want time picker...
                if (o.timeOnly === true) {
                    $tp.prepend('<div class="ui-widget-header ui-helper-clearfix ui-corner-all">' + '<div class="ui-datepicker-title">' + o.timeOnlyTitle + '</div>' + '</div>');
                    $dp.find('.ui-datepicker-header, .ui-datepicker-calendar').hide();
                }

                // add sliders, adjust grids, add events
                for (i = 0, l = tp_inst.units.length; i < l; i++) {
                    litem = tp_inst.units[i];
                    uitem = litem.substr(0, 1).toUpperCase() + litem.substr(1);

                    // add the slider
                    tp_inst[litem + '_slider'] = tp_inst.control.create(tp_inst, $tp.find('.ui_tpicker_' + litem + '_slider'), litem, tp_inst[litem], o[litem + 'Min'], max[litem], o['step' + uitem]);

                    // adjust the grid and add click event
                    if (o['show' + uitem] && o[litem + 'Grid'] > 0) {
                        size = 100 * gridSize[litem] * o[litem + 'Grid'] / (max[litem] - o[litem + 'Min']);
                        $tp.find('.ui_tpicker_' + litem + ' table').css({
                            width: size + "%",
                            marginLeft: o.isRTL ? '0' : ((size / (-2 * gridSize[litem])) + "%"),
                            marginRight: o.isRTL ? ((size / (-2 * gridSize[litem])) + "%") : '0',
                            borderCollapse: 'collapse'
                        }).find("td").click(function (e) {
                            var $t = $(this),
                                h = $t.html(),
                                n = parseInt(h.replace(/[^0-9]/g), 10),
                                ap = h.replace(/[^apm]/ig),
                                f = $t.data('for'); // loses scope, so we use data-for

                            if (f == 'hour') {
                                if (ap.indexOf('p') !== -1 && n < 12) {
                                    n += 12;
                                }
                                else {
                                    if (ap.indexOf('a') !== -1 && n === 12) {
                                        n = 0;
                                    }
                                }
                            }

                            tp_inst.control.value(tp_inst, tp_inst[f + '_slider'], litem, n);

                            tp_inst._onTimeChange();
                            tp_inst._onSelectHandler();
                        }).css({
                            cursor: 'pointer',
                            width: (100 / gridSize[litem]) + '%',
                            textAlign: 'center',
                            overflow: 'hidden'
                        });
                    } // end if grid > 0
                } // end for loop

                // Add timezone options
                this.timezone_select = $tp.find('.ui_tpicker_timezone').append('<select></select>').find("select");
                $.fn.append.apply(this.timezone_select,
				$.map(o.timezoneList, function (val, idx) {
				    return $("<option />").val(typeof val == "object" ? val.value : val).text(typeof val == "object" ? val.label : val);
				}));
                if (typeof (this.timezone) != "undefined" && this.timezone !== null && this.timezone !== "") {
                    var local_date = new Date(this.inst.selectedYear, this.inst.selectedMonth, this.inst.selectedDay, 12);
                    var local_timezone = $.timepicker.timeZoneOffsetString(local_date);
                    if (local_timezone == this.timezone) {
                        selectLocalTimeZone(tp_inst);
                    } else {
                        this.timezone_select.val(this.timezone);
                    }
                } else {
                    if (typeof (this.hour) != "undefined" && this.hour !== null && this.hour !== "") {
                        this.timezone_select.val(o.defaultTimezone);
                    } else {
                        selectLocalTimeZone(tp_inst);
                    }
                }
                this.timezone_select.change(function () {
                    tp_inst._defaults.useLocalTimezone = false;
                    tp_inst._onTimeChange();
                    tp_inst._onSelectHandler();
                });
                // End timezone options

                // inject timepicker into datepicker
                var $buttonPanel = $dp.find('.ui-datepicker-buttonpane');
                if ($buttonPanel.length) {
                    $buttonPanel.before($tp);
                } else {
                    $dp.append($tp);
                }

                this.$timeObj = $tp.find('.ui_tpicker_time');

                if (this.inst !== null) {
                    var timeDefined = this.timeDefined;
                    this._onTimeChange();
                    this.timeDefined = timeDefined;
                }

                // slideAccess integration: http://trentrichardson.com/2011/11/11/jquery-ui-sliders-and-touch-accessibility/
                if (this._defaults.addSliderAccess) {
                    var sliderAccessArgs = this._defaults.sliderAccessArgs,
						rtl = this._defaults.isRTL;
                    sliderAccessArgs.isRTL = rtl;

                    setTimeout(function () { // fix for inline mode
                        if ($tp.find('.ui-slider-access').length === 0) {
                            $tp.find('.ui-slider:visible').sliderAccess(sliderAccessArgs);

                            // fix any grids since sliders are shorter
                            var sliderAccessWidth = $tp.find('.ui-slider-access:eq(0)').outerWidth(true);
                            if (sliderAccessWidth) {
                                $tp.find('table:visible').each(function () {
                                    var $g = $(this),
										oldWidth = $g.outerWidth(),
										oldMarginLeft = $g.css(rtl ? 'marginRight' : 'marginLeft').toString().replace('%', ''),
										newWidth = oldWidth - sliderAccessWidth,
										newMarginLeft = ((oldMarginLeft * newWidth) / oldWidth) + '%',
										css = { width: newWidth, marginRight: 0, marginLeft: 0 };
                                    css[rtl ? 'marginRight' : 'marginLeft'] = newMarginLeft;
                                    $g.css(css);
                                });
                            }
                        }
                    }, 10);
                }
                // end slideAccess integration

            }
        },

        /*
		* This function tries to limit the ability to go outside the
		* min/max date range
		*/
        _limitMinMaxDateTime: function (dp_inst, adjustSliders) {
            var o = this._defaults,
				dp_date = new Date(dp_inst.selectedYear, dp_inst.selectedMonth, dp_inst.selectedDay);

            if (!this._defaults.showTimepicker) {
                return;
            } // No time so nothing to check here

            if ($.datepicker._get(dp_inst, 'minDateTime') !== null && $.datepicker._get(dp_inst, 'minDateTime') !== undefined && dp_date) {
                var minDateTime = $.datepicker._get(dp_inst, 'minDateTime'),
					minDateTimeDate = new Date(minDateTime.getFullYear(), minDateTime.getMonth(), minDateTime.getDate(), 0, 0, 0, 0);

                if (this.hourMinOriginal === null || this.minuteMinOriginal === null || this.secondMinOriginal === null || this.millisecMinOriginal === null) {
                    this.hourMinOriginal = o.hourMin;
                    this.minuteMinOriginal = o.minuteMin;
                    this.secondMinOriginal = o.secondMin;
                    this.millisecMinOriginal = o.millisecMin;
                }

                if (dp_inst.settings.timeOnly || minDateTimeDate.getTime() == dp_date.getTime()) {
                    this._defaults.hourMin = minDateTime.getHours();
                    if (this.hour <= this._defaults.hourMin) {
                        this.hour = this._defaults.hourMin;
                        this._defaults.minuteMin = minDateTime.getMinutes();
                        if (this.minute <= this._defaults.minuteMin) {
                            this.minute = this._defaults.minuteMin;
                            this._defaults.secondMin = minDateTime.getSeconds();
                            if (this.second <= this._defaults.secondMin) {
                                this.second = this._defaults.secondMin;
                                this._defaults.millisecMin = minDateTime.getMilliseconds();
                            } else {
                                if (this.millisec < this._defaults.millisecMin) {
                                    this.millisec = this._defaults.millisecMin;
                                }
                                this._defaults.millisecMin = this.millisecMinOriginal;
                            }
                        } else {
                            this._defaults.secondMin = this.secondMinOriginal;
                            this._defaults.millisecMin = this.millisecMinOriginal;
                        }
                    } else {
                        this._defaults.minuteMin = this.minuteMinOriginal;
                        this._defaults.secondMin = this.secondMinOriginal;
                        this._defaults.millisecMin = this.millisecMinOriginal;
                    }
                } else {
                    this._defaults.hourMin = this.hourMinOriginal;
                    this._defaults.minuteMin = this.minuteMinOriginal;
                    this._defaults.secondMin = this.secondMinOriginal;
                    this._defaults.millisecMin = this.millisecMinOriginal;
                }
            }

            if ($.datepicker._get(dp_inst, 'maxDateTime') !== null && $.datepicker._get(dp_inst, 'maxDateTime') !== undefined && dp_date) {
                var maxDateTime = $.datepicker._get(dp_inst, 'maxDateTime'),
					maxDateTimeDate = new Date(maxDateTime.getFullYear(), maxDateTime.getMonth(), maxDateTime.getDate(), 0, 0, 0, 0);

                if (this.hourMaxOriginal === null || this.minuteMaxOriginal === null || this.secondMaxOriginal === null) {
                    this.hourMaxOriginal = o.hourMax;
                    this.minuteMaxOriginal = o.minuteMax;
                    this.secondMaxOriginal = o.secondMax;
                    this.millisecMaxOriginal = o.millisecMax;
                }

                if (dp_inst.settings.timeOnly || maxDateTimeDate.getTime() == dp_date.getTime()) {
                    this._defaults.hourMax = maxDateTime.getHours();
                    if (this.hour >= this._defaults.hourMax) {
                        this.hour = this._defaults.hourMax;
                        this._defaults.minuteMax = maxDateTime.getMinutes();
                        if (this.minute >= this._defaults.minuteMax) {
                            this.minute = this._defaults.minuteMax;
                            this._defaults.secondMax = maxDateTime.getSeconds();
                            if (this.second >= this._defaults.secondMax) {
                                this.second = this._defaults.secondMax;
                                this._defaults.millisecMax = maxDateTime.getMilliseconds();
                            } else {
                                if (this.millisec > this._defaults.millisecMax) {
                                    this.millisec = this._defaults.millisecMax;
                                }
                                this._defaults.millisecMax = this.millisecMaxOriginal;
                            }
                        } else {
                            this._defaults.secondMax = this.secondMaxOriginal;
                            this._defaults.millisecMax = this.millisecMaxOriginal;
                        }
                    } else {
                        this._defaults.minuteMax = this.minuteMaxOriginal;
                        this._defaults.secondMax = this.secondMaxOriginal;
                        this._defaults.millisecMax = this.millisecMaxOriginal;
                    }
                } else {
                    this._defaults.hourMax = this.hourMaxOriginal;
                    this._defaults.minuteMax = this.minuteMaxOriginal;
                    this._defaults.secondMax = this.secondMaxOriginal;
                    this._defaults.millisecMax = this.millisecMaxOriginal;
                }
            }

            if (adjustSliders !== undefined && adjustSliders === true) {
                var hourMax = parseInt((this._defaults.hourMax - ((this._defaults.hourMax - this._defaults.hourMin) % this._defaults.stepHour)), 10),
					minMax = parseInt((this._defaults.minuteMax - ((this._defaults.minuteMax - this._defaults.minuteMin) % this._defaults.stepMinute)), 10),
					secMax = parseInt((this._defaults.secondMax - ((this._defaults.secondMax - this._defaults.secondMin) % this._defaults.stepSecond)), 10),
					millisecMax = parseInt((this._defaults.millisecMax - ((this._defaults.millisecMax - this._defaults.millisecMin) % this._defaults.stepMillisec)), 10);

                if (this.hour_slider) {
                    this.control.options(this, this.hour_slider, 'hour', { min: this._defaults.hourMin, max: hourMax });
                    this.control.value(this, this.hour_slider, 'hour', this.hour - (this.hour % this._defaults.stepHour));
                }
                if (this.minute_slider) {
                    this.control.options(this, this.minute_slider, 'minute', { min: this._defaults.minuteMin, max: minMax });
                    this.control.value(this, this.minute_slider, 'minute', this.minute - (this.minute % this._defaults.stepMinute));
                }
                if (this.second_slider) {
                    this.control.options(this, this.second_slider, 'second', { min: this._defaults.secondMin, max: secMax });
                    this.control.value(this, this.second_slider, 'second', this.second - (this.second % this._defaults.stepSecond));
                }
                if (this.millisec_slider) {
                    this.control.options(this, this.millisec_slider, 'millisec', { min: this._defaults.millisecMin, max: millisecMax });
                    this.control.value(this, this.millisec_slider, 'millisec', this.millisec - (this.millisec % this._defaults.stepMillisec));
                }
            }

        },

        /*
		* when a slider moves, set the internal time...
		* on time change is also called when the time is updated in the text field
		*/
        _onTimeChange: function () {
            var hour = (this.hour_slider) ? this.control.value(this, this.hour_slider, 'hour') : false,
				minute = (this.minute_slider) ? this.control.value(this, this.minute_slider, 'minute') : false,
				second = (this.second_slider) ? this.control.value(this, this.second_slider, 'second') : false,
				millisec = (this.millisec_slider) ? this.control.value(this, this.millisec_slider, 'millisec') : false,
				timezone = (this.timezone_select) ? this.timezone_select.val() : false,
				o = this._defaults,
				pickerTimeFormat = o.pickerTimeFormat || o.timeFormat,
				pickerTimeSuffix = o.pickerTimeSuffix || o.timeSuffix;

            if (typeof (hour) == 'object') {
                hour = false;
            }
            if (typeof (minute) == 'object') {
                minute = false;
            }
            if (typeof (second) == 'object') {
                second = false;
            }
            if (typeof (millisec) == 'object') {
                millisec = false;
            }
            if (typeof (timezone) == 'object') {
                timezone = false;
            }

            if (hour !== false) {
                hour = parseInt(hour, 10);
            }
            if (minute !== false) {
                minute = parseInt(minute, 10);
            }
            if (second !== false) {
                second = parseInt(second, 10);
            }
            if (millisec !== false) {
                millisec = parseInt(millisec, 10);
            }

            var ampm = o[hour < 12 ? 'amNames' : 'pmNames'][0];

            // If the update was done in the input field, the input field should not be updated.
            // If the update was done using the sliders, update the input field.
            var hasChanged = (hour != this.hour || minute != this.minute || second != this.second || millisec != this.millisec
								|| (this.ampm.length > 0 && (hour < 12) != ($.inArray(this.ampm.toUpperCase(), this.amNames) !== -1))
								|| ((this.timezone === null && timezone != this.defaultTimezone) || (this.timezone !== null && timezone != this.timezone)));

            if (hasChanged) {

                if (hour !== false) {
                    this.hour = hour;
                }
                if (minute !== false) {
                    this.minute = minute;
                }
                if (second !== false) {
                    this.second = second;
                }
                if (millisec !== false) {
                    this.millisec = millisec;
                }
                if (timezone !== false) {
                    this.timezone = timezone;
                }

                if (!this.inst) {
                    this.inst = $.datepicker._getInst(this.$input[0]);
                }

                this._limitMinMaxDateTime(this.inst, true);
            }
            if (useAmpm(o.timeFormat)) {
                this.ampm = ampm;
            }

            // Updates the time within the timepicker
            this.formattedTime = $.datepicker.formatTime(o.timeFormat, this, o);
            if (this.$timeObj) {
                if (pickerTimeFormat === o.timeFormat) {
                    this.$timeObj.text(this.formattedTime + pickerTimeSuffix);
                }
                else {
                    this.$timeObj.text($.datepicker.formatTime(pickerTimeFormat, this, o) + pickerTimeSuffix);
                }
            }

            this.timeDefined = true;
            if (hasChanged) {
                this._updateDateTime();
            }
        },

        /*
		* call custom onSelect.
		* bind to sliders slidestop, and grid click.
		*/
        _onSelectHandler: function () {
            var onSelect = this._defaults.onSelect || this.inst.settings.onSelect;
            var inputEl = this.$input ? this.$input[0] : null;
            if (onSelect && inputEl) {
                onSelect.apply(inputEl, [this.formattedDateTime, this]);
            }
        },

        /*
		* update our input with the new date time..
		*/
        _updateDateTime: function (dp_inst) {
            dp_inst = this.inst || dp_inst;
            var dt = $.datepicker._daylightSavingAdjust(new Date(dp_inst.selectedYear, dp_inst.selectedMonth, dp_inst.selectedDay)),
				dateFmt = $.datepicker._get(dp_inst, 'dateFormat'),
				formatCfg = $.datepicker._getFormatConfig(dp_inst),
				timeAvailable = dt !== null && this.timeDefined;
            this.formattedDate = $.datepicker.formatDate(dateFmt, (dt === null ? new Date() : dt), formatCfg);
            var formattedDateTime = this.formattedDate;

            // if a slider was changed but datepicker doesn't have a value yet, set it
            if (dp_inst.lastVal === "") {
                dp_inst.currentYear = dp_inst.selectedYear;
                dp_inst.currentMonth = dp_inst.selectedMonth;
                dp_inst.currentDay = dp_inst.selectedDay;
            }

            /*
			* remove following lines to force every changes in date picker to change the input value
			* Bug descriptions: when an input field has a default value, and click on the field to pop up the date picker. 
			* If the user manually empty the value in the input field, the date picker will never change selected value.
			*/
            //if (dp_inst.lastVal !== undefined && (dp_inst.lastVal.length > 0 && this.$input.val().length === 0)) {
            //	return;
            //}

            if (this._defaults.timeOnly === true) {
                formattedDateTime = this.formattedTime;
            } else if (this._defaults.timeOnly !== true && (this._defaults.alwaysSetTime || timeAvailable)) {
                formattedDateTime += this._defaults.separator + this.formattedTime + this._defaults.timeSuffix;
            }

            this.formattedDateTime = formattedDateTime;

            if (!this._defaults.showTimepicker) {
                this.$input.val(this.formattedDate);
            } else if (this.$altInput && this._defaults.altFieldTimeOnly === true) {
                this.$altInput.val(this.formattedTime);
                this.$input.val(this.formattedDate);
            } else if (this.$altInput) {
                this.$input.val(formattedDateTime);
                var altFormattedDateTime = '',
					altSeparator = this._defaults.altSeparator ? this._defaults.altSeparator : this._defaults.separator,
					altTimeSuffix = this._defaults.altTimeSuffix ? this._defaults.altTimeSuffix : this._defaults.timeSuffix;

                if (this._defaults.altFormat) {
                    altFormattedDateTime = $.datepicker.formatDate(this._defaults.altFormat, (dt === null ? new Date() : dt), formatCfg);
                }
                else {
                    altFormattedDateTime = this.formattedDate;
                }

                if (altFormattedDateTime) {
                    altFormattedDateTime += altSeparator;
                }

                if (this._defaults.altTimeFormat) {
                    altFormattedDateTime += $.datepicker.formatTime(this._defaults.altTimeFormat, this, this._defaults) + altTimeSuffix;
                }
                else {
                    altFormattedDateTime += this.formattedTime + altTimeSuffix;
                }
                this.$altInput.val(altFormattedDateTime);
            } else {
                this.$input.val(formattedDateTime);
            }

            this.$input.trigger("change");
        },

        _onFocus: function () {
            if (!this.$input.val() && this._defaults.defaultValue) {
                this.$input.val(this._defaults.defaultValue);
                var inst = $.datepicker._getInst(this.$input.get(0)),
					tp_inst = $.datepicker._get(inst, 'timepicker');
                if (tp_inst) {
                    if (tp_inst._defaults.timeOnly && (inst.input.val() != inst.lastVal)) {
                        try {
                            $.datepicker._updateDatepicker(inst);
                        } catch (err) {
                            $.timepicker.log(err);
                        }
                    }
                }
            }
        },

        /*
		* Small abstraction to control types
		* We can add more, just be sure to follow the pattern: create, options, value
		*/
        _controls: {
            // slider methods
            slider: {
                create: function (tp_inst, obj, unit, val, min, max, step) {
                    var rtl = tp_inst._defaults.isRTL; // if rtl go -60->0 instead of 0->60
                    return obj.prop('slide', null).slider({
                        orientation: "horizontal",
                        value: rtl ? val * -1 : val,
                        min: rtl ? max * -1 : min,
                        max: rtl ? min * -1 : max,
                        step: step,
                        slide: function (event, ui) {
                            tp_inst.control.value(tp_inst, $(this), unit, rtl ? ui.value * -1 : ui.value);
                            tp_inst._onTimeChange();
                        },
                        stop: function (event, ui) {
                            tp_inst._onSelectHandler();
                        }
                    });
                },
                options: function (tp_inst, obj, unit, opts, val) {
                    if (tp_inst._defaults.isRTL) {
                        if (typeof (opts) == 'string') {
                            if (opts == 'min' || opts == 'max') {
                                if (val !== undefined) {
                                    return obj.slider(opts, val * -1);
                                }
                                return Math.abs(obj.slider(opts));
                            }
                            return obj.slider(opts);
                        }
                        var min = opts.min,
							max = opts.max;
                        opts.min = opts.max = null;
                        if (min !== undefined) {
                            opts.max = min * -1;
                        }
                        if (max !== undefined) {
                            opts.min = max * -1;
                        }
                        return obj.slider(opts);
                    }
                    if (typeof (opts) == 'string' && val !== undefined) {
                        return obj.slider(opts, val);
                    }
                    return obj.slider(opts);
                },
                value: function (tp_inst, obj, unit, val) {
                    if (tp_inst._defaults.isRTL) {
                        if (val !== undefined) {
                            return obj.slider('value', val * -1);
                        }
                        return Math.abs(obj.slider('value'));
                    }
                    if (val !== undefined) {
                        return obj.slider('value', val);
                    }
                    return obj.slider('value');
                }
            },
            // select methods
            select: {
                create: function (tp_inst, obj, unit, val, min, max, step) {
                    var sel = '<select class="ui-timepicker-select" data-unit="' + unit + '" data-min="' + min + '" data-max="' + max + '" data-step="' + step + '">',
						format = tp_inst._defaults.pickerTimeFormat || tp_inst._defaults.timeFormat;

                    for (var i = min; i <= max; i += step) {
                        sel += '<option value="' + i + '"' + (i == val ? ' selected' : '') + '>';
                        if (unit == 'hour') {
                            sel += $.datepicker.formatTime($.trim(format.replace(/[^ht ]/ig, '')), { hour: i }, tp_inst._defaults);
                        }
                        else if (unit == 'millisec' || i >= 10) { sel += i; }
                        else { sel += '0' + i.toString(); }
                        sel += '</option>';
                    }
                    sel += '</select>';

                    obj.children('select').remove();

                    $(sel).appendTo(obj).change(function (e) {
                        tp_inst._onTimeChange();
                        tp_inst._onSelectHandler();
                    });

                    return obj;
                },
                options: function (tp_inst, obj, unit, opts, val) {
                    var o = {},
						$t = obj.children('select');
                    if (typeof (opts) == 'string') {
                        if (val === undefined) {
                            return $t.data(opts);
                        }
                        o[opts] = val;
                    }
                    else { o = opts; }
                    return tp_inst.control.create(tp_inst, obj, $t.data('unit'), $t.val(), o.min || $t.data('min'), o.max || $t.data('max'), o.step || $t.data('step'));
                },
                value: function (tp_inst, obj, unit, val) {
                    var $t = obj.children('select');
                    if (val !== undefined) {
                        return $t.val(val);
                    }
                    return $t.val();
                }
            }
        } // end _controls

    });

    $.fn.extend({
        /*
		* shorthand just to use timepicker..
		*/
        timepicker: function (o) {
            o = o || {};
            var tmp_args = Array.prototype.slice.call(arguments);

            if (typeof o == 'object') {
                tmp_args[0] = $.extend(o, {
                    timeOnly: true
                });
            }

            return $(this).each(function () {
                $.fn.datetimepicker.apply($(this), tmp_args);
            });
        },

        /*
		* extend timepicker to datepicker
		*/
        datetimepicker: function (o) {
            o = o || {};
            var tmp_args = arguments;

            if (typeof (o) == 'string') {
                if (o == 'getDate') {
                    return $.fn.datepicker.apply($(this[0]), tmp_args);
                } else {
                    return this.each(function () {
                        var $t = $(this);
                        $t.datepicker.apply($t, tmp_args);
                    });
                }
            } else {
                return this.each(function () {
                    var $t = $(this);
                    $t.datepicker($.timepicker._newInst($t, o)._defaults);
                });
            }
        }
    });

    /*
	* Public Utility to parse date and time
	*/
    $.datepicker.parseDateTime = function (dateFormat, timeFormat, dateTimeString, dateSettings, timeSettings) {
        var parseRes = parseDateTimeInternal(dateFormat, timeFormat, dateTimeString, dateSettings, timeSettings);
        if (parseRes.timeObj) {
            var t = parseRes.timeObj;
            parseRes.date.setHours(t.hour, t.minute, t.second, t.millisec);
        }

        return parseRes.date;
    };

    /*
	* Public utility to parse time
	*/
    $.datepicker.parseTime = function (timeFormat, timeString, options) {
        var o = extendRemove(extendRemove({}, $.timepicker._defaults), options || {});

        // Strict parse requires the timeString to match the timeFormat exactly
        var strictParse = function (f, s, o) {

            // pattern for standard and localized AM/PM markers
            var getPatternAmpm = function (amNames, pmNames) {
                var markers = [];
                if (amNames) {
                    $.merge(markers, amNames);
                }
                if (pmNames) {
                    $.merge(markers, pmNames);
                }
                markers = $.map(markers, function (val) {
                    return val.replace(/[.*+?|()\[\]{}\\]/g, '\\$&');
                });
                return '(' + markers.join('|') + ')?';
            };

            // figure out position of time elements.. cause js cant do named captures
            var getFormatPositions = function (timeFormat) {
                var finds = timeFormat.toLowerCase().match(/(h{1,2}|m{1,2}|s{1,2}|l{1}|t{1,2}|z|'.*?')/g),
					orders = {
					    h: -1,
					    m: -1,
					    s: -1,
					    l: -1,
					    t: -1,
					    z: -1
					};

                if (finds) {
                    for (var i = 0; i < finds.length; i++) {
                        if (orders[finds[i].toString().charAt(0)] == -1) {
                            orders[finds[i].toString().charAt(0)] = i + 1;
                        }
                    }
                }
                return orders;
            };

            var regstr = '^' + f.toString()
					.replace(/([hH]{1,2}|mm?|ss?|[tT]{1,2}|[lz]|'.*?')/g, function (match) {
					    var ml = match.length;
					    switch (match.charAt(0).toLowerCase()) {
					        case 'h': return ml === 1 ? '(\\d?\\d)' : '(\\d{' + ml + '})';
					        case 'm': return ml === 1 ? '(\\d?\\d)' : '(\\d{' + ml + '})';
					        case 's': return ml === 1 ? '(\\d?\\d)' : '(\\d{' + ml + '})';
					        case 'l': return '(\\d?\\d?\\d)';
					        case 'z': return '(z|[-+]\\d\\d:?\\d\\d|\\S+)?';
					        case 't': return getPatternAmpm(o.amNames, o.pmNames);
					        default:    // literal escaped in quotes
					            return '(' + match.replace(/\'/g, "").replace(/(\.|\$|\^|\\|\/|\(|\)|\[|\]|\?|\+|\*)/g, function (m) { return "\\" + m; }) + ')?';
					    }
					})
					.replace(/\s/g, '\\s?') +
					o.timeSuffix + '$',
				order = getFormatPositions(f),
				ampm = '',
				treg;

            treg = s.match(new RegExp(regstr, 'i'));

            var resTime = {
                hour: 0,
                minute: 0,
                second: 0,
                millisec: 0
            };

            if (treg) {
                if (order.t !== -1) {
                    if (treg[order.t] === undefined || treg[order.t].length === 0) {
                        ampm = '';
                        resTime.ampm = '';
                    } else {
                        ampm = $.inArray(treg[order.t].toUpperCase(), o.amNames) !== -1 ? 'AM' : 'PM';
                        resTime.ampm = o[ampm == 'AM' ? 'amNames' : 'pmNames'][0];
                    }
                }

                if (order.h !== -1) {
                    if (ampm == 'AM' && treg[order.h] == '12') {
                        resTime.hour = 0; // 12am = 0 hour
                    } else {
                        if (ampm == 'PM' && treg[order.h] != '12') {
                            resTime.hour = parseInt(treg[order.h], 10) + 12; // 12pm = 12 hour, any other pm = hour + 12
                        } else {
                            resTime.hour = Number(treg[order.h]);
                        }
                    }
                }

                if (order.m !== -1) {
                    resTime.minute = Number(treg[order.m]);
                }
                if (order.s !== -1) {
                    resTime.second = Number(treg[order.s]);
                }
                if (order.l !== -1) {
                    resTime.millisec = Number(treg[order.l]);
                }
                if (order.z !== -1 && treg[order.z] !== undefined) {
                    var tz = treg[order.z].toUpperCase();
                    switch (tz.length) {
                        case 1:
                            // Z
                            tz = o.timezoneIso8601 ? 'Z' : '+0000';
                            break;
                        case 5:
                            // +hhmm
                            if (o.timezoneIso8601) {
                                tz = tz.substring(1) == '0000' ? 'Z' : tz.substring(0, 3) + ':' + tz.substring(3);
                            }
                            break;
                        case 6:
                            // +hh:mm
                            if (!o.timezoneIso8601) {
                                tz = tz == 'Z' || tz.substring(1) == '00:00' ? '+0000' : tz.replace(/:/, '');
                            } else {
                                if (tz.substring(1) == '00:00') {
                                    tz = 'Z';
                                }
                            }
                            break;
                    }
                    resTime.timezone = tz;
                }


                return resTime;
            }
            return false;
        };// end strictParse

        // First try JS Date, if that fails, use strictParse
        var looseParse = function (f, s, o) {
            try {
                var d = new Date('2012-01-01 ' + s);
                if (isNaN(d.getTime())) {
                    d = new Date('2012-01-01T' + s);
                    if (isNaN(d.getTime())) {
                        d = new Date('01/01/2012 ' + s);
                        if (isNaN(d.getTime())) {
                            throw "Unable to parse time with native Date: " + s;
                        }
                    }
                }

                return {
                    hour: d.getHours(),
                    minute: d.getMinutes(),
                    second: d.getSeconds(),
                    millisec: d.getMilliseconds(),
                    timezone: $.timepicker.timeZoneOffsetString(d)
                };
            }
            catch (err) {
                try {
                    return strictParse(f, s, o);
                }
                catch (err2) {
                    $.timepicker.log("Unable to parse \ntimeString: " + s + "\ntimeFormat: " + f);
                }
            }
            return false;
        }; // end looseParse

        if (typeof o.parse === "function") {
            return o.parse(timeFormat, timeString, o);
        }
        if (o.parse === 'loose') {
            return looseParse(timeFormat, timeString, o);
        }
        return strictParse(timeFormat, timeString, o);
    };

    /*
	* Public utility to format the time
	* format = string format of the time
	* time = a {}, not a Date() for timezones
	* options = essentially the regional[].. amNames, pmNames, ampm
	*/
    $.datepicker.formatTime = function (format, time, options) {
        options = options || {};
        options = $.extend({}, $.timepicker._defaults, options);
        time = $.extend({
            hour: 0,
            minute: 0,
            second: 0,
            millisec: 0,
            timezone: '+0000'
        }, time);

        var tmptime = format,
			ampmName = options.amNames[0],
			hour = parseInt(time.hour, 10);

        if (hour > 11) {
            ampmName = options.pmNames[0];
        }

        tmptime = tmptime.replace(/(?:HH?|hh?|mm?|ss?|[tT]{1,2}|[lz]|('.*?'|".*?"))/g, function (match) {
            switch (match) {
                case 'HH':
                    return ('0' + hour).slice(-2);
                case 'H':
                    return hour;
                case 'hh':
                    return ('0' + convert24to12(hour)).slice(-2);
                case 'h':
                    return convert24to12(hour);
                case 'mm':
                    return ('0' + time.minute).slice(-2);
                case 'm':
                    return time.minute;
                case 'ss':
                    return ('0' + time.second).slice(-2);
                case 's':
                    return time.second;
                case 'l':
                    return ('00' + time.millisec).slice(-3);
                case 'z':
                    return time.timezone === null ? options.defaultTimezone : time.timezone;
                case 'T':
                    return ampmName.charAt(0).toUpperCase();
                case 'TT':
                    return ampmName.toUpperCase();
                case 't':
                    return ampmName.charAt(0).toLowerCase();
                case 'tt':
                    return ampmName.toLowerCase();
                default:
                    return match.replace(/\'/g, "") || "'";
            }
        });

        tmptime = $.trim(tmptime);
        return tmptime;
    };

    /*
	* the bad hack :/ override datepicker so it doesnt close on select
	// inspired: http://stackoverflow.com/questions/1252512/jquery-datepicker-prevent-closing-picker-when-clicking-a-date/1762378#1762378
	*/
    $.datepicker._base_selectDate = $.datepicker._selectDate;
    $.datepicker._selectDate = function (id, dateStr) {
        var inst = this._getInst($(id)[0]),
			tp_inst = this._get(inst, 'timepicker');

        if (tp_inst) {
            tp_inst._limitMinMaxDateTime(inst, true);
            inst.inline = inst.stay_open = true;
            //This way the onSelect handler called from calendarpicker get the full dateTime
            this._base_selectDate(id, dateStr);
            inst.inline = inst.stay_open = false;
            this._notifyChange(inst);
            this._updateDatepicker(inst);
        } else {
            this._base_selectDate(id, dateStr);
        }
    };

    /*
	* second bad hack :/ override datepicker so it triggers an event when changing the input field
	* and does not redraw the datepicker on every selectDate event
	*/
    $.datepicker._base_updateDatepicker = $.datepicker._updateDatepicker;
    $.datepicker._updateDatepicker = function (inst) {

        // don't popup the datepicker if there is another instance already opened
        var input = inst.input[0];
        if ($.datepicker._curInst && $.datepicker._curInst != inst && $.datepicker._datepickerShowing && $.datepicker._lastInput != input) {
            return;
        }

        if (typeof (inst.stay_open) !== 'boolean' || inst.stay_open === false) {

            this._base_updateDatepicker(inst);

            // Reload the time control when changing something in the input text field.
            var tp_inst = this._get(inst, 'timepicker');
            if (tp_inst) {
                tp_inst._addTimePicker(inst);

                //				if (tp_inst._defaults.useLocalTimezone) { //checks daylight saving with the new date.
                //					var date = new Date(inst.selectedYear, inst.selectedMonth, inst.selectedDay, 12);
                //					selectLocalTimeZone(tp_inst, date);
                //					tp_inst._onTimeChange();
                //				}
            }
        }
    };

    /*
	* third bad hack :/ override datepicker so it allows spaces and colon in the input field
	*/
    $.datepicker._base_doKeyPress = $.datepicker._doKeyPress;
    $.datepicker._doKeyPress = function (event) {
        var inst = $.datepicker._getInst(event.target),
			tp_inst = $.datepicker._get(inst, 'timepicker');

        if (tp_inst) {
            if ($.datepicker._get(inst, 'constrainInput')) {
                var ampm = useAmpm(tp_inst._defaults.timeFormat),
					dateChars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat')),
					datetimeChars = tp_inst._defaults.timeFormat.toString()
											.replace(/[hms]/g, '')
											.replace(/TT/g, ampm ? 'APM' : '')
											.replace(/Tt/g, ampm ? 'AaPpMm' : '')
											.replace(/tT/g, ampm ? 'AaPpMm' : '')
											.replace(/T/g, ampm ? 'AP' : '')
											.replace(/tt/g, ampm ? 'apm' : '')
											.replace(/t/g, ampm ? 'ap' : '') +
											" " + tp_inst._defaults.separator +
											tp_inst._defaults.timeSuffix +
											(tp_inst._defaults.showTimezone ? tp_inst._defaults.timezoneList.join('') : '') +
											(tp_inst._defaults.amNames.join('')) + (tp_inst._defaults.pmNames.join('')) +
											dateChars,
					chr = String.fromCharCode(event.charCode === undefined ? event.keyCode : event.charCode);
                return event.ctrlKey || (chr < ' ' || !dateChars || datetimeChars.indexOf(chr) > -1);
            }
        }

        return $.datepicker._base_doKeyPress(event);
    };

    /*
	* Fourth bad hack :/ override _updateAlternate function used in inline mode to init altField
	*/
    $.datepicker._base_updateAlternate = $.datepicker._updateAlternate;
    /* Update any alternate field to synchronise with the main field. */
    $.datepicker._updateAlternate = function (inst) {
        var tp_inst = this._get(inst, 'timepicker');
        if (tp_inst) {
            var altField = tp_inst._defaults.altField;
            if (altField) { // update alternate field too
                var altFormat = tp_inst._defaults.altFormat || tp_inst._defaults.dateFormat,
					date = this._getDate(inst),
					formatCfg = $.datepicker._getFormatConfig(inst),
					altFormattedDateTime = '',
					altSeparator = tp_inst._defaults.altSeparator ? tp_inst._defaults.altSeparator : tp_inst._defaults.separator,
					altTimeSuffix = tp_inst._defaults.altTimeSuffix ? tp_inst._defaults.altTimeSuffix : tp_inst._defaults.timeSuffix,
					altTimeFormat = tp_inst._defaults.altTimeFormat !== null ? tp_inst._defaults.altTimeFormat : tp_inst._defaults.timeFormat;

                altFormattedDateTime += $.datepicker.formatTime(altTimeFormat, tp_inst, tp_inst._defaults) + altTimeSuffix;
                if (!tp_inst._defaults.timeOnly && !tp_inst._defaults.altFieldTimeOnly && date !== null) {
                    if (tp_inst._defaults.altFormat) {
                        altFormattedDateTime = $.datepicker.formatDate(tp_inst._defaults.altFormat, date, formatCfg) + altSeparator + altFormattedDateTime;
                    }
                    else {
                        altFormattedDateTime = tp_inst.formattedDate + altSeparator + altFormattedDateTime;
                    }
                }
                $(altField).val(altFormattedDateTime);
            }
        }
        else {
            $.datepicker._base_updateAlternate(inst);
        }
    };

    /*
	* Override key up event to sync manual input changes.
	*/
    $.datepicker._base_doKeyUp = $.datepicker._doKeyUp;
    $.datepicker._doKeyUp = function (event) {
        var inst = $.datepicker._getInst(event.target),
			tp_inst = $.datepicker._get(inst, 'timepicker');

        if (tp_inst) {
            if (tp_inst._defaults.timeOnly && (inst.input.val() != inst.lastVal)) {
                try {
                    $.datepicker._updateDatepicker(inst);
                } catch (err) {
                    $.timepicker.log(err);
                }
            }
        }

        return $.datepicker._base_doKeyUp(event);
    };

    /*
	* override "Today" button to also grab the time.
	*/
    $.datepicker._base_gotoToday = $.datepicker._gotoToday;
    $.datepicker._gotoToday = function (id) {
        var inst = this._getInst($(id)[0]),
			$dp = inst.dpDiv;
        this._base_gotoToday(id);
        var tp_inst = this._get(inst, 'timepicker');
        selectLocalTimeZone(tp_inst);
        var now = new Date();
        this._setTime(inst, now);
        $('.ui-datepicker-today', $dp).click();
    };

    /*
	* Disable & enable the Time in the datetimepicker
	*/
    $.datepicker._disableTimepickerDatepicker = function (target) {
        var inst = this._getInst(target);
        if (!inst) {
            return;
        }

        var tp_inst = this._get(inst, 'timepicker');
        $(target).datepicker('getDate'); // Init selected[Year|Month|Day]
        if (tp_inst) {
            tp_inst._defaults.showTimepicker = false;
            tp_inst._updateDateTime(inst);
        }
    };

    $.datepicker._enableTimepickerDatepicker = function (target) {
        var inst = this._getInst(target);
        if (!inst) {
            return;
        }

        var tp_inst = this._get(inst, 'timepicker');
        $(target).datepicker('getDate'); // Init selected[Year|Month|Day]
        if (tp_inst) {
            tp_inst._defaults.showTimepicker = true;
            tp_inst._addTimePicker(inst); // Could be disabled on page load
            tp_inst._updateDateTime(inst);
        }
    };

    /*
	* Create our own set time function
	*/
    $.datepicker._setTime = function (inst, date) {
        var tp_inst = this._get(inst, 'timepicker');
        if (tp_inst) {
            var defaults = tp_inst._defaults;

            // calling _setTime with no date sets time to defaults
            tp_inst.hour = date ? date.getHours() : defaults.hour;
            tp_inst.minute = date ? date.getMinutes() : defaults.minute;
            tp_inst.second = date ? date.getSeconds() : defaults.second;
            tp_inst.millisec = date ? date.getMilliseconds() : defaults.millisec;

            //check if within min/max times.. 
            tp_inst._limitMinMaxDateTime(inst, true);

            tp_inst._onTimeChange();
            tp_inst._updateDateTime(inst);
        }
    };

    /*
	* Create new public method to set only time, callable as $().datepicker('setTime', date)
	*/
    $.datepicker._setTimeDatepicker = function (target, date, withDate) {
        var inst = this._getInst(target);
        if (!inst) {
            return;
        }

        var tp_inst = this._get(inst, 'timepicker');

        if (tp_inst) {
            this._setDateFromField(inst);
            var tp_date;
            if (date) {
                if (typeof date == "string") {
                    tp_inst._parseTime(date, withDate);
                    tp_date = new Date();
                    tp_date.setHours(tp_inst.hour, tp_inst.minute, tp_inst.second, tp_inst.millisec);
                } else {
                    tp_date = new Date(date.getTime());
                }
                if (tp_date.toString() == 'Invalid Date') {
                    tp_date = undefined;
                }
                this._setTime(inst, tp_date);
            }
        }

    };

    /*
	* override setDate() to allow setting time too within Date object
	*/
    $.datepicker._base_setDateDatepicker = $.datepicker._setDateDatepicker;
    $.datepicker._setDateDatepicker = function (target, date) {
        var inst = this._getInst(target);
        if (!inst) {
            return;
        }

        var tp_date = (date instanceof Date) ? new Date(date.getTime()) : date;

        this._updateDatepicker(inst);
        this._base_setDateDatepicker.apply(this, arguments);
        this._setTimeDatepicker(target, tp_date, true);
    };

    /*
	* override getDate() to allow getting time too within Date object
	*/
    $.datepicker._base_getDateDatepicker = $.datepicker._getDateDatepicker;
    $.datepicker._getDateDatepicker = function (target, noDefault) {
        var inst = this._getInst(target);
        if (!inst) {
            return;
        }

        var tp_inst = this._get(inst, 'timepicker');

        if (tp_inst) {
            // if it hasn't yet been defined, grab from field
            if (inst.lastVal === undefined) {
                this._setDateFromField(inst, noDefault);
            }

            var date = this._getDate(inst);
            if (date && tp_inst._parseTime($(target).val(), tp_inst.timeOnly)) {
                date.setHours(tp_inst.hour, tp_inst.minute, tp_inst.second, tp_inst.millisec);
            }
            return date;
        }
        return this._base_getDateDatepicker(target, noDefault);
    };

    /*
	* override parseDate() because UI 1.8.14 throws an error about "Extra characters"
	* An option in datapicker to ignore extra format characters would be nicer.
	*/
    $.datepicker._base_parseDate = $.datepicker.parseDate;
    $.datepicker.parseDate = function (format, value, settings) {
        var date;
        try {
            date = this._base_parseDate(format, value, settings);
        } catch (err) {
            // Hack!  The error message ends with a colon, a space, and
            // the "extra" characters.  We rely on that instead of
            // attempting to perfectly reproduce the parsing algorithm.
            if (err.indexOf(":") >= 0) {
                date = this._base_parseDate(format, value.substring(0, value.length - (err.length - err.indexOf(':') - 2)), settings);
                $.timepicker.log("Error parsing the date string: " + err + "\ndate string = " + value + "\ndate format = " + format);
            } else {
                throw err;
            }
        }
        return date;
    };

    /*
	* override formatDate to set date with time to the input
	*/
    $.datepicker._base_formatDate = $.datepicker._formatDate;
    $.datepicker._formatDate = function (inst, day, month, year) {
        var tp_inst = this._get(inst, 'timepicker');
        if (tp_inst) {
            tp_inst._updateDateTime(inst);
            return tp_inst.$input.val();
        }
        return this._base_formatDate(inst);
    };

    /*
	* override options setter to add time to maxDate(Time) and minDate(Time). MaxDate
	*/
    $.datepicker._base_optionDatepicker = $.datepicker._optionDatepicker;
    $.datepicker._optionDatepicker = function (target, name, value) {
        var inst = this._getInst(target),
	        name_clone;
        if (!inst) {
            return null;
        }

        var tp_inst = this._get(inst, 'timepicker');
        if (tp_inst) {
            var min = null,
				max = null,
				onselect = null,
				overrides = tp_inst._defaults.evnts,
				fns = {},
				prop;
            if (typeof name == 'string') { // if min/max was set with the string
                if (name === 'minDate' || name === 'minDateTime') {
                    min = value;
                } else if (name === 'maxDate' || name === 'maxDateTime') {
                    max = value;
                } else if (name === 'onSelect') {
                    onselect = value;
                } else if (overrides.hasOwnProperty(name)) {
                    if (typeof (value) === 'undefined') {
                        return overrides[name];
                    }
                    fns[name] = value;
                    name_clone = {}; //empty results in exiting function after overrides updated
                }
            } else if (typeof name == 'object') { //if min/max was set with the JSON
                if (name.minDate) {
                    min = name.minDate;
                } else if (name.minDateTime) {
                    min = name.minDateTime;
                } else if (name.maxDate) {
                    max = name.maxDate;
                } else if (name.maxDateTime) {
                    max = name.maxDateTime;
                }
                for (prop in overrides) {
                    if (overrides.hasOwnProperty(prop) && name[prop]) {
                        fns[prop] = name[prop];
                    }
                }
            }
            for (prop in fns) {
                if (fns.hasOwnProperty(prop)) {
                    overrides[prop] = fns[prop];
                    if (!name_clone) { name_clone = $.extend({}, name); }
                    delete name_clone[prop];
                }
            }
            if (name_clone && isEmptyObject(name_clone)) { return; }
            if (min) { //if min was set
                if (min === 0) {
                    min = new Date();
                } else {
                    min = new Date(min);
                }
                tp_inst._defaults.minDate = min;
                tp_inst._defaults.minDateTime = min;
            } else if (max) { //if max was set
                if (max === 0) {
                    max = new Date();
                } else {
                    max = new Date(max);
                }
                tp_inst._defaults.maxDate = max;
                tp_inst._defaults.maxDateTime = max;
            } else if (onselect) {
                tp_inst._defaults.onSelect = onselect;
            }
        }
        if (value === undefined) {
            return this._base_optionDatepicker.call($.datepicker, target, name);
        }
        return this._base_optionDatepicker.call($.datepicker, target, name_clone || name, value);
    };

    /*
	* jQuery isEmptyObject does not check hasOwnProperty - if someone has added to the object prototype,
	* it will return false for all objects
	*/
    var isEmptyObject = function (obj) {
        var prop;
        for (prop in obj) {
            if (obj.hasOwnProperty(obj)) {
                return false;
            }
        }
        return true;
    };

    /*
	* jQuery extend now ignores nulls!
	*/
    var extendRemove = function (target, props) {
        $.extend(target, props);
        for (var name in props) {
            if (props[name] === null || props[name] === undefined) {
                target[name] = props[name];
            }
        }
        return target;
    };

    /*
	* Determine by the time format if should use ampm
	* Returns true if should use ampm, false if not
	*/
    var useAmpm = function (timeFormat) {
        return ((timeFormat.indexOf('t') !== -1 || timeFormat.indexOf('T') !== -1) && timeFormat.indexOf('h') !== -1);
    };

    /*
	* Converts 24 hour format into 12 hour
	* Returns 12 hour without leading 0
	*/
    var convert24to12 = function (hour) {
        if (hour > 12) {
            hour = hour - 12;
        }

        if (hour === 0) {
            hour = 12;
        }

        return String(hour);
    };

    /*
	* Splits datetime string into date ans time substrings.
	* Throws exception when date can't be parsed
	* Returns [dateString, timeString]
	*/
    var splitDateTime = function (dateFormat, dateTimeString, dateSettings, timeSettings) {
        try {
            // The idea is to get the number separator occurances in datetime and the time format requested (since time has 
            // fewer unknowns, mostly numbers and am/pm). We will use the time pattern to split.
            var separator = timeSettings && timeSettings.separator ? timeSettings.separator : $.timepicker._defaults.separator,
				format = timeSettings && timeSettings.timeFormat ? timeSettings.timeFormat : $.timepicker._defaults.timeFormat,
				timeParts = format.split(separator), // how many occurances of separator may be in our format?
				timePartsLen = timeParts.length,
				allParts = dateTimeString.split(separator),
				allPartsLen = allParts.length;

            if (allPartsLen > 1) {
                return [
						allParts.splice(0, allPartsLen - timePartsLen).join(separator),
						allParts.splice(0, timePartsLen).join(separator)
                ];
            }

        } catch (err) {
            $.timepicker.log('Could not split the date from the time. Please check the following datetimepicker options' +
					"\nthrown error: " + err +
					"\ndateTimeString" + dateTimeString +
					"\ndateFormat = " + dateFormat +
					"\nseparator = " + timeSettings.separator +
					"\ntimeFormat = " + timeSettings.timeFormat);

            if (err.indexOf(":") >= 0) {
                // Hack!  The error message ends with a colon, a space, and
                // the "extra" characters.  We rely on that instead of
                // attempting to perfectly reproduce the parsing algorithm.
                var dateStringLength = dateTimeString.length - (err.length - err.indexOf(':') - 2),
					timeString = dateTimeString.substring(dateStringLength);

                return [$.trim(dateTimeString.substring(0, dateStringLength)), $.trim(dateTimeString.substring(dateStringLength))];

            } else {
                throw err;
            }
        }
        return [dateTimeString, ''];
    };

    /*
	* Internal function to parse datetime interval
	* Returns: {date: Date, timeObj: Object}, where
	*   date - parsed date without time (type Date)
	*   timeObj = {hour: , minute: , second: , millisec: } - parsed time. Optional
	*/
    var parseDateTimeInternal = function (dateFormat, timeFormat, dateTimeString, dateSettings, timeSettings) {
        var date;
        var splitRes = splitDateTime(dateFormat, dateTimeString, dateSettings, timeSettings);
        date = $.datepicker._base_parseDate(dateFormat, splitRes[0], dateSettings);
        if (splitRes[1] !== '') {
            var timeString = splitRes[1],
				parsedTime = $.datepicker.parseTime(timeFormat, timeString, timeSettings);

            if (parsedTime === null) {
                throw 'Wrong time format';
            }
            return {
                date: date,
                timeObj: parsedTime
            };
        } else {
            return {
                date: date
            };
        }
    };

    /*
	* Internal function to set timezone_select to the local timezone
	*/
    var selectLocalTimeZone = function (tp_inst, date) {
        if (tp_inst && tp_inst.timezone_select) {
            tp_inst._defaults.useLocalTimezone = true;
            var now = typeof date !== 'undefined' ? date : new Date();
            var tzoffset = $.timepicker.timeZoneOffsetString(now);
            if (tp_inst._defaults.timezoneIso8601) {
                tzoffset = tzoffset.substring(0, 3) + ':' + tzoffset.substring(3);
            }
            tp_inst.timezone_select.val(tzoffset);
        }
    };

    /*
	* Create a Singleton Insance
	*/
    $.timepicker = new Timepicker();

    /**
	 * Get the timezone offset as string from a date object (eg '+0530' for UTC+5.5)
	 * @param  date
	 * @return string
	 */
    $.timepicker.timeZoneOffsetString = function (date) {
        var off = date.getTimezoneOffset() * -1,
			minutes = off % 60,
			hours = (off - minutes) / 60;
        return (off >= 0 ? '+' : '-') + ('0' + (hours * 101).toString()).slice(-2) + ('0' + (minutes * 101).toString()).slice(-2);
    };

    /**
	 * Calls `timepicker()` on the `startTime` and `endTime` elements, and configures them to
	 * enforce date range limits.
	 * n.b. The input value must be correctly formatted (reformatting is not supported)
	 * @param  Element startTime
	 * @param  Element endTime
	 * @param  obj options Options for the timepicker() call
	 * @return jQuery
	 */
    $.timepicker.timeRange = function (startTime, endTime, options) {
        return $.timepicker.handleRange('timepicker', startTime, endTime, options);
    };

    /**
	 * Calls `datetimepicker` on the `startTime` and `endTime` elements, and configures them to
	 * enforce date range limits.
	 * @param  Element startTime
	 * @param  Element endTime
	 * @param  obj options Options for the `timepicker()` call. Also supports `reformat`,
	 *   a boolean value that can be used to reformat the input values to the `dateFormat`.
	 * @param  string method Can be used to specify the type of picker to be added
	 * @return jQuery
	 */
    $.timepicker.dateTimeRange = function (startTime, endTime, options) {
        $.timepicker.dateRange(startTime, endTime, options, 'datetimepicker');
    };

    /**
	 * Calls `method` on the `startTime` and `endTime` elements, and configures them to
	 * enforce date range limits.
	 * @param  Element startTime
	 * @param  Element endTime
	 * @param  obj options Options for the `timepicker()` call. Also supports `reformat`,
	 *   a boolean value that can be used to reformat the input values to the `dateFormat`.
	 * @param  string method Can be used to specify the type of picker to be added
	 * @return jQuery
	 */
    $.timepicker.dateRange = function (startTime, endTime, options, method) {
        method = method || 'datepicker';
        $.timepicker.handleRange(method, startTime, endTime, options);
    };

    /**
	 * Calls `method` on the `startTime` and `endTime` elements, and configures them to
	 * enforce date range limits.
	 * @param  string method Can be used to specify the type of picker to be added
	 * @param  Element startTime
	 * @param  Element endTime
	 * @param  obj options Options for the `timepicker()` call. Also supports `reformat`,
	 *   a boolean value that can be used to reformat the input values to the `dateFormat`.
	 * @return jQuery
	 */
    $.timepicker.handleRange = function (method, startTime, endTime, options) {
        $.fn[method].call(startTime, $.extend({
            onClose: function (dateText, inst) {
                checkDates(this, endTime, dateText);
            },
            onSelect: function (selectedDateTime) {
                selected(this, endTime, 'minDate');
            }
        }, options, options.start));
        $.fn[method].call(endTime, $.extend({
            onClose: function (dateText, inst) {
                checkDates(this, startTime, dateText);
            },
            onSelect: function (selectedDateTime) {
                selected(this, startTime, 'maxDate');
            }
        }, options, options.end));
        // timepicker doesn't provide access to its 'timeFormat' option, 
        // nor could I get datepicker.formatTime() to behave with times, so I
        // have disabled reformatting for timepicker
        if (method != 'timepicker' && options.reformat) {
            $([startTime, endTime]).each(function () {
                var format = $(this)[method].call($(this), 'option', 'dateFormat'),
					date = new Date($(this).val());
                if ($(this).val() && date) {
                    $(this).val($.datepicker.formatDate(format, date));
                }
            });
        }
        checkDates(startTime, endTime, startTime.val());

        function checkDates(changed, other, dateText) {
            if (other.val() && (new Date(startTime.val()) > new Date(endTime.val()))) {
                other.val(dateText);
            }
        }
        selected(startTime, endTime, 'minDate');
        selected(endTime, startTime, 'maxDate');

        function selected(changed, other, option) {
            if (!$(changed).val()) {
                return;
            }
            var date = $(changed)[method].call($(changed), 'getDate');
            // timepicker doesn't implement 'getDate' and returns a jQuery
            if (date.getTime) {
                $(other)[method].call($(other), 'option', option, date);
            }
        }
        return $([startTime.get(0), endTime.get(0)]);
    };

    /**
	 * Log error or data to the console during error or debugging
	 * @param  Object err pass any type object to log to the console during error or debugging
	 * @return void
	 */
    $.timepicker.log = function (err) {
        if (window.console) {
            console.log(err);
        }
    };

    /*
	* Keep up with the version
	*/
    $.timepicker.version = "1.2.2";

})(jQuery);

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Written By
Software Developer (Senior)
New Zealand New Zealand
I'm a software developer based in the beautiful city of Wellington, New Zealand. I love experimenting with new .Net technologies as they arrive, and these days there seems to be a lot of choice as there are so many new features in the framework! My current interests are Azure, ASP.Net MVC, SignalR, Knockout, AngularJS, and responsive design (inc. using Bootstrap, Foundation, Skeleton). These change fairly often as I tinker with various new technologies...

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