//disable dates
document.getElementById('arrivalDate').disabled = true;
document.getElementById('departureDate').disabled = true;

var calendar = new Object;
calendar = new Object();
tr = new Object();
tr.nextMonth = "Next month";
tr.prevMonth = "Previous month";
tr.closeCalendar = "Close calendar";
tr.icons = "/files/calendar/booking";
var months=['January','February','March','April','May','June','July','August','September','October','November','December',];
var days=['Mo','Tu','We','Th','Fr','Sa','Su'];
var days3=['Mon','Tue','Wed','Thu','Fri','Sat','Sun'];

var months = [];
var monthsShort = [];
var dayArray = [];
var weekString = '';
var todayString = '';

function cal_setLang(lng) {
    switch(lng){
        case "sk":	/* Slovak */
            tr.nextMonth = "Ďalší mesiac";
            tr.prevMonth = "Predchádzajúci mesiac";
            tr.closeCalendar = "Zavrieť kalendár";
            tr.icons = "/files/calendar/booking";
            months=['Január','Február','Marec','Apríl','Máj','Jún','Júl','August','September','Október','November','December'];
            days=['Po','Ut','St','Št','Pi','So','Ne'];
            days3=['Pon','Uto','Str','Štv','Pia','Sob','Ned'];
            break;
        case "ge":	/* German */
        case "de":	/* German */
            tr.nextMonth = "Next month";
            tr.prevMonth = "Previous month";
            tr.closeCalendar = "Close calendar";
            tr.icons = "/files/calendar/booking";
            months=['Januar','Februar','März','April','Mai','Juni','Juli','August','September','Oktober','November','Dezember'];
            days=['Mo','Di','Mi','Do','Fr','Sa','So'];
            days3=['Mon','Die','Mit','Don','Fre','Sam','Son'];
            break;
        case "en":	/* English */
        default :
            tr.nextMonth = "Next month";
            tr.prevMonth = "Previous month";
            tr.closeCalendar = "Close calendar";
            tr.icons = "/files/calendar/booking";
            months=['January','February','March','April','May','June','July','August','September','October','November','December'];
            days=['Mo','Tu','We','Th','Fr','Sa','Su'];
            days3=['Mon','Tue','Wed','Thu','Fri','Sat','Sun'];
            break;
    }
}

function cal_loadScript(src) {
    var headTag = document.getElementsByTagName('head')[0];
    var scriptTag = document.createElement('script');
    scriptTag.type = 'text/javascript';
    scriptTag.src = src;
    headTag.appendChild(scriptTag);
}
function cal_loadCss(src) {
    var headTag = document.getElementsByTagName('head')[0];
    var linkTag = document.createElement('link');
    linkTag.rel = 'stylesheet';
    linkTag.type = 'text/css';
    linkTag.href = src;
    headTag.appendChild(linkTag);
}

addEvent(window,'load',cal_Load);

function cal_Load() {
    
    cal_loadScript('/files/calendar/booking/date.js');
    cal_loadCss('/files/calendar/booking/calendar.css');
    
    cal_afterLoad();
}

function cal_afterLoad() {
    if (window.showCalendar) {
        //objekt kalendar
        var calEl = document.createElement('div');
        calEl.id = 'calendar';
        calEl.style.position = 'absolute';
        document.body.appendChild(calEl);
        
        //nastavenie jazyka
        cal_setLang('en');
        //zobrazenie selectov - prichod
        var arrival = document.getElementById('arrivalDate');
        var currentDate = new Date();
        if (arrival.value) {
            currentDate.setDate(arrival.value.substring(0,2));
            currentDate.setMonth(arrival.value.substring(3,5) - 1);
            currentDate.setFullYear(arrival.value.substring(6,10));
        }
        arrival.style.display = 'none';
        var monthDaySelect_a = document.createElement("select");
        monthDaySelect_a.name = 'arrivalDate_monthday';
        monthDaySelect_a.id = 'arrivalDate_monthday';
        monthDaySelect_a.style.fontSize = '1em';
        for (var d = 1 ; d <= 31 ; d++) {
            opt = new Option(d,d);
            monthDaySelect_a.options[monthDaySelect_a.options.length] = opt;
            if (d == currentDate.getDate()) {
                opt.selected = true;
            }
        }

        var monthYearSelect_a = document.createElement("select");
        monthYearSelect_a.name = 'arrivalDate_year_month';
        monthYearSelect_a.id = 'arrivalDate_year_month';
        monthYearSelect_a.style.fontSize = '1em';
        for (var y = currentDate.getFullYear() ; y <= currentDate.getFullYear()+2 ; y++) {
            if (y == currentDate.getFullYear()) {
                for (var m = currentDate.getMonth()+1 ; m <= 12 ; m++) {
                    opt = new Option(months[m-1]+' '+y,y+'-'+m);
                    monthYearSelect_a.options[monthYearSelect_a.options.length] = opt;
                    if (m == currentDate.getMonth() && y == currentDate.getFullYear()) {
                        opt.selected = true;
                    }
                }
            } else {
                for (var m = 1 ; m <= 12 ; m++) {
                    opt = new Option(months[m-1]+' '+y,y+'-'+m);
                    monthYearSelect_a.options[monthYearSelect_a.options.length] = opt;
                    if (m == currentDate.getMonth() && y == currentDate.getFullYear()) {
                        opt.selected = true;
                    }
                }
            }
        }
        arrival.parentNode.appendChild(monthYearSelect_a);
        arrival.parentNode.appendChild(document.createTextNode(' '));

        arrival.parentNode.appendChild(monthDaySelect_a);
        updateDaySelect(monthDaySelect_a);
        //medzera
        
        //zobrazenie selectov - odchod
        var departure = document.getElementById('departureDate');
        departure.style.display = 'none';
        var monthDaySelect_d = document.createElement("select");
        monthDaySelect_d.name = 'departureDate_monthday';
        monthDaySelect_d.id = 'departureDate_monthday';
        monthDaySelect_d.style.fontSize = '1em';
        //den o 1 viac
        var currentDate1 = new Date;
        if (departure.value) {
            currentDate1.setDate(departure.value.substring(0,2));
            currentDate1.setMonth(departure.value.substring(3,5) - 1);
            currentDate1.setFullYear(departure.value.substring(6,10));
        } else {
            currentDate1.setDate(currentDate.getDate() + 1);
        }
        for (var d = 1 ; d <= 31 ; d++) {
            opt = new Option(d,d);
            monthDaySelect_d.options[monthDaySelect_d.options.length] = opt;
            if (d == currentDate1.getDate()) {
                opt.selected = true;
            }
        }

        var monthYearSelect_d = document.createElement("select");
        monthYearSelect_d.name = 'departureDate_year_month';
        monthYearSelect_d.id = 'departureDate_year_month';
        monthYearSelect_d.style.fontSize = '1em';
        for (var y = currentDate1.getFullYear() ; y <= currentDate1.getFullYear()+2 ; y++) {
            if (y == currentDate1.getFullYear()) {
                for (var m = currentDate1.getMonth()+1 ; m <= 12 ; m++) {
                    opt = new Option(months[m-1]+' '+y,y+'-'+m);
                    monthYearSelect_d.options[monthYearSelect_d.options.length] = opt;
                    if (m == currentDate1.getMonth() && y == currentDate1.getFullYear()) {
                        opt.selected = true;
                    }
                }
            }
            else {
                for (var m = 1 ; m <= 12 ; m++) {
                    opt = new Option(months[m-1]+' '+y,y+'-'+m);
                    monthYearSelect_d.options[monthYearSelect_d.options.length] = opt;
                    if (m == currentDate1.getMonth() && y == currentDate1.getFullYear()) {
                        opt.selected = true;
                    }
                }
            }
        }
        departure.parentNode.appendChild(monthYearSelect_d);
        //medzera
        departure.parentNode.appendChild(document.createTextNode(' '));
        
        departure.parentNode.appendChild(monthDaySelect_d);

        //buttony
        // arrival
        var btn1 = document.createElement('A');
            btn1.href = '#';
            btn1.title = 'Calendar';
            btn1.appendChild(document.createTextNode(' '));
        var btn1_img = document.createElement('IMG');
            btn1_img.src = '/files/images/ico-calendar3.gif';
            btn1_img.alt = 'calendar';
            btn1.appendChild(btn1_img);
        arrival.parentNode.appendChild(btn1);
        // departure
        var btn2 = document.createElement('A');
            btn2.href = '#';
            btn2.title = 'Calendar';
            btn2.appendChild(document.createTextNode(' '));
        var btn2_img = document.createElement('IMG');
            btn2_img.src = '/files/images/ico-calendar3.gif';
            btn2_img.alt = 'calendar';
            btn2.appendChild(btn2_img);
        departure.parentNode.appendChild(btn2);
        
        //udalosti
        btn1.onclick = function () {
            showCalendar(this,'calendar','arrivalDate');
        }
        btn2.onclick = function () {
            showCalendar(this,'calendar','departureDate');
        }
        monthDaySelect_a.onchange = function () {
            checkDateOrder(this, 'arrivalDate_monthday', 'arrivalDate_year_month', 'departureDate_monthday', 'departureDate_year_month');
            updateDaySelect(this);
        };
        monthYearSelect_a.onchange = function () {
            checkDateOrder(this, 'arrivalDate_monthday', 'arrivalDate_year_month', 'departureDate_monthday', 'departureDate_year_month');
            updateDaySelect(this);
        };
        monthDaySelect_d.onchange = function () {
            checkDateOrder(this, 'arrivalDate_monthday', 'arrivalDate_year_month', 'departureDate_monthday', 'departureDate_year_month');
            updateDaySelect(this);
        };
        monthYearSelect_d.onchange = function () {
            checkDateOrder(this, 'arrivalDate_monthday', 'arrivalDate_year_month', 'departureDate_monthday', 'departureDate_year_month');
            updateDaySelect(this);
        };
        
        initDaySelect();
    }
    else {
        window.setTimeout(cal_afterLoad,200);
    }
}