/**
 *
 * Date picker
 * Author: Stefan Petre www.eyecon.ro
 *
 */
(function ($) {
    var DatePicker = function () {
        var	ids = {},
        tpl = {
            wrapper: '<div class="datepicker"><div class="datepickerBorderT" /><div class="datepickerBorderB" /><div class="datepickerBorderL" /><div class="datepickerBorderR" /><div class="datepickerBorderTL" /><div class="datepickerBorderTR" /><div class="datepickerBorderBL" /><div class="datepickerBorderBR" /><div class="datepickerContainer"><table cellspacing="0" cellpadding="0"><tbody><tr></tr></tbody></table></div></div>',
            head: [
            '<td>',
            '<table cellspacing="0" cellpadding="0">',
            '<thead>',
            '<tr>',
            '<th class="datepickerGoPrev"><a href="#"><span><%=prev%></span></a></th>',
            '<th colspan="5" class="datepickerMonth"><a href="#"><span></span></a></th>',
            '<th class="datepickerGoNext"><a href="#"><span><%=next%></span></a></th>',
            //'<th class="datepickerGoNext"><a href="#"><span><img src="/img/arrow.JPG" border="0" alt="" style="vertical-align:middle;"/></span></a></th>',
            '</tr>',
            '<tr class="datepickerDoW">',
            //'<th><span><%=week%></span></th>',
            '<th><span><%=day1%></span></th>',
            '<th><span><%=day2%></span></th>',
            '<th><span><%=day3%></span></th>',
            '<th><span><%=day4%></span></th>',
            '<th><span><%=day5%></span></th>',
            '<th><span><%=day6%></span></th>',
            '<th><span><%=day7%></span></th>',
            '</tr>',
            '</thead>',
            '</table></td>'
            ],
            space : '<td class="datepickerSpace"><div></div></td>',
            spaceline : '</tr><tr>',
            days: [
            '<tbody class="datepickerDays">',
            '<tr>',
            //'<th class="datepickerWeek"><a href="#"><span><%=weeks[0].week%></span></a></th>',
            '<td class="<%=weeks[0].days[0].classname%>"><a href="#"><span><%=weeks[0].days[0].text%></span></a></td>',
            '<td class="<%=weeks[0].days[1].classname%>"><a href="#"><span><%=weeks[0].days[1].text%></span></a></td>',
            '<td class="<%=weeks[0].days[2].classname%>"><a href="#"><span><%=weeks[0].days[2].text%></span></a></td>',
            '<td class="<%=weeks[0].days[3].classname%>"><a href="#"><span><%=weeks[0].days[3].text%></span></a></td>',
            '<td class="<%=weeks[0].days[4].classname%>"><a href="#"><span><%=weeks[0].days[4].text%></span></a></td>',
            '<td class="<%=weeks[0].days[5].classname%>"><a href="#"><span><%=weeks[0].days[5].text%></span></a></td>',
            '<td class="<%=weeks[0].days[6].classname%>"><a href="#"><span><%=weeks[0].days[6].text%></span></a></td>',
            '</tr>',
            '<tr>',
            //'<th class="datepickerWeek"><a href="#"><span><%=weeks[1].week%></span></a></th>',
            '<td class="<%=weeks[1].days[0].classname%>"><a href="#"><span><%=weeks[1].days[0].text%></span></a></td>',
            '<td class="<%=weeks[1].days[1].classname%>"><a href="#"><span><%=weeks[1].days[1].text%></span></a></td>',
            '<td class="<%=weeks[1].days[2].classname%>"><a href="#"><span><%=weeks[1].days[2].text%></span></a></td>',
            '<td class="<%=weeks[1].days[3].classname%>"><a href="#"><span><%=weeks[1].days[3].text%></span></a></td>',
            '<td class="<%=weeks[1].days[4].classname%>"><a href="#"><span><%=weeks[1].days[4].text%></span></a></td>',
            '<td class="<%=weeks[1].days[5].classname%>"><a href="#"><span><%=weeks[1].days[5].text%></span></a></td>',
            '<td class="<%=weeks[1].days[6].classname%>"><a href="#"><span><%=weeks[1].days[6].text%></span></a></td>',
            '</tr>',
            '<tr>',
            //'<th class="datepickerWeek"><a href="#"><span><%=weeks[2].week%></span></a></th>',
            '<td class="<%=weeks[2].days[0].classname%>"><a href="#"><span><%=weeks[2].days[0].text%></span></a></td>',
            '<td class="<%=weeks[2].days[1].classname%>"><a href="#"><span><%=weeks[2].days[1].text%></span></a></td>',
            '<td class="<%=weeks[2].days[2].classname%>"><a href="#"><span><%=weeks[2].days[2].text%></span></a></td>',
            '<td class="<%=weeks[2].days[3].classname%>"><a href="#"><span><%=weeks[2].days[3].text%></span></a></td>',
            '<td class="<%=weeks[2].days[4].classname%>"><a href="#"><span><%=weeks[2].days[4].text%></span></a></td>',
            '<td class="<%=weeks[2].days[5].classname%>"><a href="#"><span><%=weeks[2].days[5].text%></span></a></td>',
            '<td class="<%=weeks[2].days[6].classname%>"><a href="#"><span><%=weeks[2].days[6].text%></span></a></td>',
            '</tr>',
            '<tr>',
            //'<th class="datepickerWeek"><a href="#"><span><%=weeks[3].week%></span></a></th>',
            '<td class="<%=weeks[3].days[0].classname%>"><a href="#"><span><%=weeks[3].days[0].text%></span></a></td>',
            '<td class="<%=weeks[3].days[1].classname%>"><a href="#"><span><%=weeks[3].days[1].text%></span></a></td>',
            '<td class="<%=weeks[3].days[2].classname%>"><a href="#"><span><%=weeks[3].days[2].text%></span></a></td>',
            '<td class="<%=weeks[3].days[3].classname%>"><a href="#"><span><%=weeks[3].days[3].text%></span></a></td>',
            '<td class="<%=weeks[3].days[4].classname%>"><a href="#"><span><%=weeks[3].days[4].text%></span></a></td>',
            '<td class="<%=weeks[3].days[5].classname%>"><a href="#"><span><%=weeks[3].days[5].text%></span></a></td>',
            '<td class="<%=weeks[3].days[6].classname%>"><a href="#"><span><%=weeks[3].days[6].text%></span></a></td>',
            '</tr>',
            '<tr>',
            //'<th class="datepickerWeek"><a href="#"><span><%=weeks[4].week%></span></a></th>',
            '<td class="<%=weeks[4].days[0].classname%>"><a href="#"><span><%=weeks[4].days[0].text%></span></a></td>',
            '<td class="<%=weeks[4].days[1].classname%>"><a href="#"><span><%=weeks[4].days[1].text%></span></a></td>',
            '<td class="<%=weeks[4].days[2].classname%>"><a href="#"><span><%=weeks[4].days[2].text%></span></a></td>',
            '<td class="<%=weeks[4].days[3].classname%>"><a href="#"><span><%=weeks[4].days[3].text%></span></a></td>',
            '<td class="<%=weeks[4].days[4].classname%>"><a href="#"><span><%=weeks[4].days[4].text%></span></a></td>',
            '<td class="<%=weeks[4].days[5].classname%>"><a href="#"><span><%=weeks[4].days[5].text%></span></a></td>',
            '<td class="<%=weeks[4].days[6].classname%>"><a href="#"><span><%=weeks[4].days[6].text%></span></a></td>',
            '</tr>',
            '<tr>',
            //'<th class="datepickerWeek"><a href="#"><span><%=weeks[5].week%></span></a></th>',
            '<td class="<%=weeks[5].days[0].classname%>"><a href="#"><span><%=weeks[5].days[0].text%></span></a></td>',
            '<td class="<%=weeks[5].days[1].classname%>"><a href="#"><span><%=weeks[5].days[1].text%></span></a></td>',
            '<td class="<%=weeks[5].days[2].classname%>"><a href="#"><span><%=weeks[5].days[2].text%></span></a></td>',
            '<td class="<%=weeks[5].days[3].classname%>"><a href="#"><span><%=weeks[5].days[3].text%></span></a></td>',
            '<td class="<%=weeks[5].days[4].classname%>"><a href="#"><span><%=weeks[5].days[4].text%></span></a></td>',
            '<td class="<%=weeks[5].days[5].classname%>"><a href="#"><span><%=weeks[5].days[5].text%></span></a></td>',
            '<td class="<%=weeks[5].days[6].classname%>"><a href="#"><span><%=weeks[5].days[6].text%></span></a></td>',
            '</tr>',
            '</tbody>'
            ],
            months: [
            '<tbody class="<%=className%>">',
            '<tr>',
            '<td colspan="2"><a href="#"><span><%=data[0]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[1]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[2]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[3]%></span></a></td>',
            '</tr>',
            '<tr>',
            '<td colspan="2"><a href="#"><span><%=data[4]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[5]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[6]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[7]%></span></a></td>',
            '</tr>',
            '<tr>',
            '<td colspan="2"><a href="#"><span><%=data[8]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[9]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[10]%></span></a></td>',
            '<td colspan="2"><a href="#"><span><%=data[11]%></span></a></td>',
            '</tr>',
            '</tbody>'
            ]
        },
        defaults = {
            flat: false,
            starts: 1,
            prev: '&#9664;',
            next: '&#9654;',
            lastSel: false,
            mode: 'single',
            calendars: 1,
            format: 'Y-m-d',
            position: 'bottom',
            eventName: 'click',
            onRender: function(){
                return {};
            },
            onChange: function(){
                return true;
            },
            onShow: function(){
                return true;
            },
            onBeforeShow: function(){
                return true;
            },
            onHide: function(){
                return true;
            },
            locale: {
                days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"],
                daysShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
                daysMin: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"],
                months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
                monthsShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
                weekMin: 'wk'
            }
        },
        fill = function(el) {
            $.ajax({
                type: "POST",
                url: "/properties/update_calendar",
                data: "property_id="+property_id,
                dataType: 'json',
                async:false,
                success: function(msg_data){

                    //alert( "Data Saved: " + msg_data.length);
                    var bookings=msg_data.length;

                    var options = $(el).data('datepicker');
                    var cal = $(el);
                    var currentCal = Math.floor(options.calendars/2), date, data, dow, month, cnt = 0, week, days, indic, indic2, html, tblCal;
                    cal.find('td>table tbody').remove();
                    for (var i = 0; i < options.calendars; i++) {
                        date = new Date(options.current);
                        date.addMonths(-currentCal + i);
                        tblCal = cal.find('table').eq(i+1);
                        switch (tblCal[0].className) {
                            case 'datepickerViewDays':
                                dow = formatDate(date, 'B, Y');
                                break;
                            case 'datepickerViewMonths':
                                dow = date.getFullYear();
                                break;
                            case 'datepickerViewYears':
                                dow = (date.getFullYear()-6) + ' - ' + (date.getFullYear()+5);
                                break;
                        }
                        tblCal.find('thead tr:first th:eq(1) span').text(dow);
                        dow = date.getFullYear()-6;
                        data = {
                            data: [],
                            className: 'datepickerYears'
                        }
                        for ( var j = 0; j < 12; j++) {
                            data.data.push(dow + j);
                        }
                        html = tmpl(tpl.months.join(''), data);
                        date.setDate(1);
                        data = {
                            weeks:[],
                            test: 10
                        };
                        month = date.getMonth();
                        var dow = (date.getDay() - options.starts) % 7;
                        date.addDays(-(dow + (dow < 0 ? 7 : 0)));
                        week = -1;
                        cnt = 0;
                        while (cnt < 42) {
                            indic = parseInt(cnt/7,10);
                            indic2 = cnt%7;
                            if (!data.weeks[indic]) {
                                week = date.getWeekNumber();
                                data.weeks[indic] = {
                                    week: week,
                                    days: []
                                };
                            }
                            data.weeks[indic].days[indic2] = {
                                text: date.getDate(),
                                classname: [],
                                bookingId : ""
                            };
                            if (month != date.getMonth()) {
                                data.weeks[indic].days[indic2].classname.push('datepickerNotInMonth');
                            }
                            if (date.getDay() == 0) {
                                data.weeks[indic].days[indic2].classname.push('datepickerSunday');
                            }
                            if (date.getDay() == 6) {
                                data.weeks[indic].days[indic2].classname.push('datepickerSaturday');
                            }
                            var fromUser = options.onRender(date);
                            var val = date.valueOf();
                            //custom code
                            var x=0;
                            /*var temp_start;
                            var temp_end;*/
                            var curr_date;
                            var comp1;
                            var comp2;
                            curr_date=new Date(val);
                            val=curr_date.getFullYear()+"-"+(curr_date.getMonth()+1)+"-"+curr_date.getDate();
                            while(x<bookings) {
                                //alert(msg_data[x].Booking.start_date);
                                //temp_start = (parseDate(msg_data[x].Booking.start_date, options.format).setHours(0,0,0,0)).valueOf();
                                //temp_end = (parseDate(msg_data[x].Booking.end_date, options.format).setHours(0,0,0,0)).valueOf();
                                comp1=compareDates(msg_data[x].Booking.start_date,"yyyy-MM-dd",val,"yyyy-M-d");
                                comp2=compareDates(val,"yyyy-M-d",msg_data[x].Booking.end_date,"yyyy-MM-dd");
                                //if(val>=temp_start && val<=temp_end) {
                                if(comp1==0 && comp2==0) {
                                    if(msg_data[x].Booking.status=="Booked") {
                                        data.weeks[indic].days[indic2].classname.push('datepickerBooked');
                                        data.weeks[indic].days[indic2].bookingId=msg_data[x].Booking.id;
                                    }
                                    if(msg_data[x].Booking.status=="Pending") {
                                        data.weeks[indic].days[indic2].classname.push('datepickerPending');
                                        data.weeks[indic].days[indic2].bookingId=msg_data[x].Booking.id;
                                    }
                                }
                                x++;
                            }
                            ////
                            /*if (fromUser.selected || options.date == val || $.inArray(val, options.date) > -1 || (options.mode == 'range' && val >= options.date[0] && val <= options.date[1])) {
                                data.weeks[indic].days[indic2].classname.push('datepickerSelected');
                            }*/
                            if (fromUser.disabled) {
                                data.weeks[indic].days[indic2].classname.push('datepickerDisabled');
                            }
                            if (fromUser.className) {
                                data.weeks[indic].days[indic2].classname.push(fromUser.className);
                            }
                            data.weeks[indic].days[indic2].classname = data.weeks[indic].days[indic2].classname.join(' ');
                            cnt++;
                            date.addDays(1);
                        }
                        html = tmpl(tpl.days.join(''), data) + html;
                        data = {
                            data: options.locale.monthsShort,
                            className: 'datepickerMonths'
                        };
                        html = tmpl(tpl.months.join(''), data) + html;
                        tblCal.append(html);
                    }
                }
            });
        },
        parseDate = function (date, format) {
            if (date.constructor == Date) {
                return new Date(date);
            }
            var parts = date.split(/\W+/);
            var against = format.split(/\W+/), d, m, y, h, min, now = new Date();
            for (var i = 0; i < parts.length; i++) {
                switch (against[i]) {
                    case 'd':
                    case 'e':
                        d = parseInt(parts[i],10);
                        break;
                    case 'm':
                        m = parseInt(parts[i], 10) - 1;
                        break;
                    case 'Y':
                    case 'y':
                        y = parseInt(parts[i], 10);
                        y += y > 100 ? 0 : (y < 29 ? 2000 : 1900);
                        break;
                    case 'H':
                    case 'I':
                    case 'k':
                    case 'l':
                        h = parseInt(parts[i], 10);
                        break;
                    case 'P':
                    case 'p':
                        if (/pm/i.test(parts[i]) && h < 12) {
                            h += 12;
                        } else if (/am/i.test(parts[i]) && h >= 12) {
                            h -= 12;
                        }
                        break;
                    case 'M':
                        min = parseInt(parts[i], 10);
                        break;
                }
            }
            return new Date(
                y||now.getFullYear(),
                m||now.getMonth(),
                d||now.getDate(),
                h||now.getHours(),
                min||now.getMinutes(),
                0
                );
        },
        formatDate = function(date, format) {
            var m = date.getMonth();
            var d = date.getDate();
            var y = date.getFullYear();
            var wn = date.getWeekNumber();
            var w = date.getDay();
            var s = {};
            var hr = date.getHours();
            var pm = (hr >= 12);
            var ir = (pm) ? (hr - 12) : hr;
            var dy = date.getDayOfYear();
            if (ir == 0) {
                ir = 12;
            }
            var min = date.getMinutes();
            var sec = date.getSeconds();
            var parts = format.split(''), part;
            for ( var i = 0; i < parts.length; i++ ) {
                part = parts[i];
                switch (parts[i]) {
                    case 'a':
                        part = date.getDayName();
                        break;
                    case 'A':
                        part = date.getDayName(true);
                        break;
                    case 'b':
                        part = date.getMonthName();
                        break;
                    case 'B':
                        part = date.getMonthName(true);
                        break;
                    case 'C':
                        part = 1 + Math.floor(y / 100);
                        break;
                    case 'd':
                        part = (d < 10) ? ("0" + d) : d;
                        break;
                    case 'e':
                        part = d;
                        break;
                    case 'H':
                        part = (hr < 10) ? ("0" + hr) : hr;
                        break;
                    case 'I':
                        part = (ir < 10) ? ("0" + ir) : ir;
                        break;
                    case 'j':
                        part = (dy < 100) ? ((dy < 10) ? ("00" + dy) : ("0" + dy)) : dy;
                        break;
                    case 'k':
                        part = hr;
                        break;
                    case 'l':
                        part = ir;
                        break;
                    case 'm':
                        part = (m < 9) ? ("0" + (1+m)) : (1+m);
                        break;
                    case 'M':
                        part = (min < 10) ? ("0" + min) : min;
                        break;
                    case 'p':
                    case 'P':
                        part = pm ? "PM" : "AM";
                        break;
                    case 's':
                        part = Math.floor(date.getTime() / 1000);
                        break;
                    case 'S':
                        part = (sec < 10) ? ("0" + sec) : sec;
                        break;
                    case 'u':
                        part = w + 1;
                        break;
                    case 'w':
                        part = w;
                        break;
                    case 'y':
                        part = ('' + y).substr(2, 2);
                        break;
                    case 'Y':
                        part = y;
                        break;
                }
                parts[i] = part;
            }
            return parts.join('');
        },
        extendDate = function(options) {
            if (Date.prototype.tempDate) {
                return;
            }
            Date.prototype.tempDate = null;
            Date.prototype.months = options.months;
            Date.prototype.monthsShort = options.monthsShort;
            Date.prototype.days = options.days;
            Date.prototype.daysShort = options.daysShort;
            Date.prototype.getMonthName = function(fullName) {
                return this[fullName ? 'months' : 'monthsShort'][this.getMonth()];
            };
            Date.prototype.getDayName = function(fullName) {
                return this[fullName ? 'days' : 'daysShort'][this.getDay()];
            };
            Date.prototype.addDays = function (n) {
                this.setDate(this.getDate() + n);
                this.tempDate = this.getDate();
            };
            Date.prototype.addMonths = function (n) {
                if (this.tempDate == null) {
                    this.tempDate = this.getDate();
                }
                this.setDate(1);
                this.setMonth(this.getMonth() + n);
                this.setDate(Math.min(this.tempDate, this.getMaxDays()));
            };
            Date.prototype.addYears = function (n) {
                if (this.tempDate == null) {
                    this.tempDate = this.getDate();
                }
                this.setDate(1);
                this.setFullYear(this.getFullYear() + n);
                this.setDate(Math.min(this.tempDate, this.getMaxDays()));
            };
            Date.prototype.getMaxDays = function() {
                var tmpDate = new Date(Date.parse(this)),
                d = 28, m;
                m = tmpDate.getMonth();
                d = 28;
                while (tmpDate.getMonth() == m) {
                    d ++;
                    tmpDate.setDate(d);
                }
                return d - 1;
            };
            Date.prototype.getFirstDay = function() {
                var tmpDate = new Date(Date.parse(this));
                tmpDate.setDate(1);
                return tmpDate.getDay();
            };
            Date.prototype.getWeekNumber = function() {
                var tempDate = new Date(this);
                tempDate.setDate(tempDate.getDate() - (tempDate.getDay() + 6) % 7 + 3);
                var dms = tempDate.valueOf();
                tempDate.setMonth(0);
                tempDate.setDate(4);
                return Math.round((dms - tempDate.valueOf()) / (604800000)) + 1;
            };
            Date.prototype.getDayOfYear = function() {
                var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
                var then = new Date(this.getFullYear(), 0, 0, 0, 0, 0);
                var time = now - then;
                return Math.floor(time / 24*60*60*1000);
            };
        },
        layout = function (el) {
            var options = $(el).data('datepicker');
            var cal = $('#' + options.id);
            if (!options.extraHeight) {
                var divs = $(el).find('div');
                options.extraHeight = divs.get(0).offsetHeight + divs.get(1).offsetHeight;
                options.extraWidth = divs.get(2).offsetWidth + divs.get(3).offsetWidth;
            }
            var tbl = cal.find('table:first').get(0);
            var width = tbl.offsetWidth;
            var height = tbl.offsetHeight;
            cal.css({
                width: width + options.extraWidth + 'px',
                height: height + options.extraHeight + 'px'
            }).find('div.datepickerContainer').css({
                width: width + 'px',
                height: height + 'px'
            });
        },
        click = function(ev) {

            if ($(ev.target).is('span')) {

                ev.target = ev.target.parentNode;
            }
            var el = $(ev.target);
            if (el.is('a')) {
                var e2 = ($(ev.target)).parent();
                var bookingValue=e2.attr('id');
                ev.target.blur();
                if (el.hasClass('datepickerDisabled')) {
                    return false;
                }
                var options = $(this).data('datepicker');

                var parentEl = el.parent();
                var tblEl = parentEl.parent().parent().parent();
                var tblIndex = $('table', this).index(tblEl.get(0)) - 1;

                if (parentEl.parent().parent().is('thead')) {
                    switch (tblEl.get(0).className) {
                        case 'datepickerViewDays':
                            options.current.addMonths(parentEl.hasClass('datepickerGoPrev') ? -1 : 1);
                            break;
                        case 'datepickerViewMonths':
                            options.current.addYears(parentEl.hasClass('datepickerGoPrev') ? -1 : 1);
                            break;
                        case 'datepickerViewYears':
                            options.current.addYears(parentEl.hasClass('datepickerGoPrev') ? -12 : 12);
                            break;
                    }
                    fill(this);
                }
            }            
            return false;
        },
        prepareDate = function (options) {
            var tmp;
            if (options.mode == 'single') {
                tmp = new Date(options.date);
                return [formatDate(tmp, options.format), tmp];
            } else {
                tmp = [[],[]];
                $.each(options.date, function(nr, val){
                    var date = new Date(val);
                    tmp[0].push(formatDate(date, options.format));
                    tmp[1].push(date);
                });
                return tmp;
            }
        },
        getViewport = function () {
            var m = document.compatMode == 'CSS1Compat';
            return {
                l : window.pageXOffset || (m ? document.documentElement.scrollLeft : document.body.scrollLeft),
                t : window.pageYOffset || (m ? document.documentElement.scrollTop : document.body.scrollTop),
                w : window.innerWidth || (m ? document.documentElement.clientWidth : document.body.clientWidth),
                h : window.innerHeight || (m ? document.documentElement.clientHeight : document.body.clientHeight)
            };
        },
        isChildOf = function(parentEl, el, container) {
            if (parentEl == el) {
                return true;
            }
            if (parentEl.contains) {
                return parentEl.contains(el);
            }
            if ( parentEl.compareDocumentPosition ) {
                return !!(parentEl.compareDocumentPosition(el) & 16);
            }
            var prEl = el.parentNode;
            while(prEl && prEl != container) {
                if (prEl == parentEl)
                    return true;
                prEl = prEl.parentNode;
            }
            return false;
        },
        show = function (ev) {
            var cal = $('#' + $(this).data('datepickerId'));
            if (!cal.is(':visible')) {
                var calEl = cal.get(0);
                var options = cal.data('datepicker');
                options.onBeforeShow.apply(this, [cal.get(0)]);
                var pos = $(this).offset();
                var viewPort = getViewport();
                var top = pos.top;
                var left = pos.left;
                var oldDisplay = $.curCSS(calEl, 'display');
                cal.css({
                    visibility: 'hidden',
                    display: 'block'
                });
                layout(calEl);
                switch (options.position){
                    case 'top':
                        top -= calEl.offsetHeight;
                        break;
                    case 'left':
                        left -= calEl.offsetWidth;
                        break;
                    case 'right':
                        left += this.offsetWidth;
                        break;
                    case 'bottom':
                        top += this.offsetHeight;
                        break;
                }
                if (top + calEl.offsetHeight > viewPort.t + viewPort.h) {
                    top = pos.top  - calEl.offsetHeight;
                }
                if (top < viewPort.t) {
                    top = pos.top + this.offsetHeight + calEl.offsetHeight;
                }
                if (left + calEl.offsetWidth > viewPort.l + viewPort.w) {
                    left = pos.left - calEl.offsetWidth;
                }
                if (left < viewPort.l) {
                    left = pos.left + this.offsetWidth
                }
                cal.css({
                    visibility: 'visible',
                    display: 'block',
                    top: top + 'px',
                    left: left + 'px'
                });
                if (options.onShow.apply(this, [cal.get(0)]) != false) {
                    cal.show();
                }
                $(document).bind('mousedown', {
                    cal: cal,
                    trigger: this
                }, hide);
            }
            return false;
        },
        hide = function (ev) {
            if (ev.target != ev.data.trigger && !isChildOf(ev.data.cal.get(0), ev.target, ev.data.cal.get(0))) {
                if (ev.data.cal.data('datepicker').onHide.apply(this, [ev.data.cal.get(0)]) != false) {
                    ev.data.cal.hide();
                }
                $(document).unbind('mousedown', hide);
            }
        };
        return {
            init: function(options){
                options = $.extend({}, defaults, options||{});
                extendDate(options.locale);
                options.calendars = Math.max(1, parseInt(options.calendars,10)||1);
                options.mode = /single|multiple|range/.test(options.mode) ? options.mode : 'single';
                return this.each(function(){
                    if (!$(this).data('datepicker')) {
                        if (options.date.constructor == String) {
                            options.date = parseDate(options.date, options.format);
                            options.date.setHours(0,0,0,0);
                        }
                        if (options.mode != 'single') {
                            if (options.date.constructor != Array) {
                                options.date = [options.date.valueOf()];
                                if (options.mode == 'range') {
                                    options.date.push(((new Date(options.date[0])).setHours(23,59,59,0)).valueOf());
                                }
                            } else {
                                for (var i = 0; i < options.date.length; i++) {
                                    options.date[i] = (parseDate(options.date[i], options.format).setHours(0,0,0,0)).valueOf();
                                }
                                if (options.mode == 'range') {
                                    options.date[1] = ((new Date(options.date[1])).setHours(23,59,59,0)).valueOf();
                                }
                            }
                        } else {
                            options.date = options.date.valueOf();
                        }
                        if (!options.current) {
                            options.current = new Date();
                        } else {
                            options.current = parseDate(options.current, options.format);
                        }
                        options.current.setDate(1);
                        options.current.setHours(0,0,0,0);
                        var id = 'datepicker_' + parseInt(Math.random() * 1000), cnt;
                        options.id = id;
                        $(this).data('datepickerId', options.id);
                        var cal = $(tpl.wrapper).attr('id', id).bind('click', click).data('datepicker', options);
                        if (options.className) {
                            cal.addClass(options.className);
                        }
                        for (var i = 0; i < options.calendars; i++) {
                            cnt = options.starts;
                            cal.find('tr:first').append('',
                                //(i > 0 ?  tpl.space: ''),
                                (i > 0 ?  tpl.space : '')+tmpl(tpl.head.join(''), {
                                    week: options.locale.weekMin,
                                    prev: options.prev,
                                    next: options.next,
                                    day1: options.locale.daysMin[(cnt++)%7],
                                    day2: options.locale.daysMin[(cnt++)%7],
                                    day3: options.locale.daysMin[(cnt++)%7],
                                    day4: options.locale.daysMin[(cnt++)%7],
                                    day5: options.locale.daysMin[(cnt++)%7],
                                    day6: options.locale.daysMin[(cnt++)%7],
                                    day7: options.locale.daysMin[(cnt++)%7]
                                })
                                );
                        }
                        cal.find('tr:first table').addClass('datepickerViewDays');
                        fill(cal.get(0));
                        if (options.flat) {
                            cal.appendTo(this).show().css('position', 'relative');
                            layout(cal.get(0));
                        } else {
                            cal.appendTo(document.body);
                            $(this).bind(options.eventName, show);
                        }
                    }
                });
            },
            showPicker: function() {
                return this.each( function () {
                    if ($(this).data('datepickerId')) {
                        show.apply(this);
                    }
                });
            },
            hidePicker: function() {
                return this.each( function () {
                    if ($(this).data('datepickerId')) {
                        $('#' + $(this).data('datepickerId')).hide();
                    }
                });
            },
            setDate: function(date, shiftTo){
                return this.each(function(){
                    if ($(this).data('datepickerId')) {
                        var cal = $('#' + $(this).data('datepickerId'));
                        var options = cal.data('datepicker');
                        options.date = date;
                        if (options.date.constructor == String) {
                            options.date = parseDate(options.date, options.format);
                            options.date.setHours(0,0,0,0);
                        }
                        if (options.mode != 'single') {
                            if (options.date.constructor != Array) {
                                options.date = [options.date.valueOf()];
                                if (options.mode == 'range') {
                                    options.date.push(((new Date(options.date[0])).setHours(23,59,59,0)).valueOf());
                                }
                            } else {
                                for (var i = 0; i < options.date.length; i++) {
                                    options.date[i] = (parseDate(options.date[i], options.format).setHours(0,0,0,0)).valueOf();
                                }
                                if (options.mode == 'range') {
                                    options.date[1] = ((new Date(options.date[1])).setHours(23,59,59,0)).valueOf();
                                }
                            }
                        } else {
                            options.date = options.date.valueOf();
                        }
                        if (shiftTo) {
                            options.current = new Date (options.mode != 'single' ? options.date[0] : options.date);
                        }
                        fill(cal.get(0));
                    }
                });
            },
            getDate: function(formated) {
                if (this.size() > 0) {
                    return prepareDate($('#' + $(this).data('datepickerId')).data('datepicker'))[formated ? 0 : 1];
                }
            }
        };
    }();
    $.fn.extend({
        DatePicker: DatePicker.init,
        DatePickerHide: DatePicker.hide,
        DatePickerShow: DatePicker.show,
        DatePickerSetDate: DatePicker.setDate,
        DatePickerGetDate: DatePicker.getDate
    });
})(jQuery);

(function(){
    var cache = {};

    this.tmpl = function tmpl(str, data){
        // Figure out if we're getting a template, or if we need to
        // load the template - and be sure to cache the result.
        var fn = !/\W/.test(str) ?
        cache[str] = cache[str] ||
        tmpl(document.getElementById(str).innerHTML) :

        // Generate a reusable function that will serve as a template
        // generator (and which will be cached).
        new Function("obj",
            "var p=[],print=function(){p.push.apply(p,arguments);};" +

            // Introduce the data as local variables using with(){}
            "with(obj){p.push('" +

            // Convert the template into pure JavaScript
            str
            .replace(/[\r\t\n]/g, " ")
            .split("<%").join("\t")
            .replace(/((^|%>)[^\t]*)'/g, "$1\r")
            .replace(/\t=(.*?)%>/g, "',$1,'")
            .split("\t").join("');")
            .split("%>").join("p.push('")
            .split("\r").join("\\'")
            + "');}return p.join('');");

        // Provide some basic currying to the user
        return data ? fn( data ) : fn;
    };
})();
