var CalSMN = new Array
("JAN",
 "FEB",
 "MAR",
 "APR",
 "MAY",
 "JUN",
 "JUL",
 "AUG",
 "SEP",
 "OCT",
 "NOV",
 "DEC");

function ZDateEdit_ShowCalendar() 
{
    if (ZTextPopup_Popup != null && ZTextPopup_Popup.contentWindow != null && ZTextPopup_Popup.contentWindow.SetSelectedDate != null) 
    {
        if (ZTextPopup_TextBox != null) 
        {
            ZTextPopup_Popup.contentWindow.SetSelectedDate(ZTextPopup_TextBox.value);
        }
    }
}

function ZDateEdit_SetTime(TimeTextBoxID, Time) 
{
    var TimeTextBox = $(TimeTextBoxID);
    if (TimeTextBox != null) 
    {
        if ((Time != '' && TimeTextBox.value == '') || (Time == '' && TimeTextBox.value != '')) 
        {
            TimeTextBox.value = Time;
        }
    }
}

function ZDateEdit_CalendarHeightChanged(Height) 
{
    if (ZTextPopup_Popup != null) 
    {
        ZTextPopup_Popup.style.height = Height;
    }
}

function NormalizeAndValidateDate(controlID, format) 
{
    var control = $(controlID);
    if (control == null || control.value == '') 
    {
        return false;
    }
    if (NormalizeDate(control, format)) 
    {
        return true;
    }
    var result = ValidateDate(control.value);
    if (!result) 
    {
        alert('Please enter valid date!');
        setTimeout("$('" + controlID + "').focus()", 100);
    }
    return result;
}

function NormalizeDate(control, format) {
    var day, month, year;
    var monthNotDigital = false;
    var dateToNormalize = control.value;
    if (TryMatchDate("^\\d{1,2}$", dateToNormalize)) {
        day = dateToNormalize;
    }
    else if (TryMatchDate("^\\d{3,4}$", dateToNormalize)) {
        if (format == 'en-us' || format == 'ja') {
            day = dateToNormalize.substring(dateToNormalize.length - 2);
            month = dateToNormalize.substring(0, dateToNormalize.length - 2);
        }
        else {
            day = dateToNormalize.substring(0, dateToNormalize.length - 2);
            month = dateToNormalize.substring(dateToNormalize.length - 2);
        }
    }
    else if (TryMatchDate("^\\d{1,2}[-/.]\\d{2}$", dateToNormalize)) {
        if (format == 'en-us' || format == 'ja') {
            day = dateToNormalize.substring(dateToNormalize.length - 2);
            month = dateToNormalize.substring(0, dateToNormalize.length - 3);
        }
        else {
            day = dateToNormalize.substring(0, dateToNormalize.length - 3);
            month = dateToNormalize.substring(dateToNormalize.length - 2);
        }
    }
    else if (TryMatchDate("^\\d{5,6}$", dateToNormalize)) {
        if (format == 'en-us') {
            month = dateToNormalize.substring(0, dateToNormalize.length - 4);
            day = dateToNormalize.substring(dateToNormalize.length - 4, dateToNormalize.length - 2);
            year = dateToNormalize.substring(dateToNormalize.length - 2);
        }
        else if (format == 'ja') {
            year = dateToNormalize.substring(0, dateToNormalize.length - 4);
            month = dateToNormalize.substring(dateToNormalize.length - 4, dateToNormalize.length - 2);
            day = dateToNormalize.substring(dateToNormalize.length - 2);
        }
        else {
            day = dateToNormalize.substring(0, dateToNormalize.length - 4);
            month = dateToNormalize.substring(dateToNormalize.length - 4, dateToNormalize.length - 2);
            year = dateToNormalize.substring(dateToNormalize.length - 2);
        }
    }
    else if (TryMatchDate("^\\d{1,2}[-/.]\\d{2}[-/.]\\d{2}$", dateToNormalize)) {
        if (format == 'en-us') {
            month = dateToNormalize.substring(0, dateToNormalize.length - 6);
            day = dateToNormalize.substring(dateToNormalize.length - 5, dateToNormalize.length - 3);
            year = dateToNormalize.substring(dateToNormalize.length - 2);
        }
        else if (format == 'ja') {
            year = dateToNormalize.substring(0, dateToNormalize.length - 6);
            month = dateToNormalize.substring(dateToNormalize.length - 5, dateToNormalize.length - 3);
            day = dateToNormalize.substring(dateToNormalize.length - 2);
        }
        else {
            day = dateToNormalize.substring(0, dateToNormalize.length - 6);
            month = dateToNormalize.substring(dateToNormalize.length - 5, dateToNormalize.length - 3);
            year = dateToNormalize.substring(dateToNormalize.length - 2);
        }
    }
    else if (TryMatchDate("^\\d{1,2}\\D{3}$", dateToNormalize)) {
        monthNotDigital = true;
        day = dateToNormalize.substring(0, dateToNormalize.length - 3);
        month = dateToNormalize.substring(dateToNormalize.length - 3);
    }
    else if (TryMatchDate("^\\d{1,2}[-/.]\\D{3}$", dateToNormalize)) {
        monthNotDigital = true;
        day = dateToNormalize.substring(0, dateToNormalize.length - 4);
        month = dateToNormalize.substring(dateToNormalize.length - 3);
    }

    if (day != null) {
        var now = new Date();
        if (month == null) {
            month = now.getMonth() + 1; //(it returns 0 to 11)
        }
        
        return TryNormalizeDate(control, year != null ? GetFullYear(year) : now.getFullYear(), monthNotDigital ? GetMonth(month) : month, day);
    }
    
    return false;
}

function TryMatchDate(pattern, dateToMatch) 
{
    var re = new RegExp(pattern);
    return re.exec(dateToMatch) != null;
}

function TryNormalizeDate(control, year, month, day) 
{
    var yearInt = parseInt(year, 10);
    var monthInt = parseInt(month, 10);
    var dayInt = parseInt(day, 10);
    if (monthInt > 0 && monthInt <= 12 && dayInt <= 31) 
    {
        control.value = ConstructDateString(yearInt, monthInt, dayInt);
        return true;
    }
    return false;
}

function ConstructDateString(yearInt, monthInt, dayInt) 
{
    var result = ((dayInt < 10) ? '0' : '') + dayInt;
    for (var i = 1; i <= 12; i++) 
    {
        if (i == monthInt) 
        {
            result = result + '-' + CalSMN[i - 1] + '-';
            break;
        }
    }
    yearInt = yearInt % 100;
    result = result + ((yearInt < 10) ? '0' : '') + yearInt;
    return result;
}

function GetFullYear(year) 
{
    var yearInt = parseInt(year, 10);
    return ((yearInt < 59) ? 2000 : 1900) + yearInt;
}

function GetMonth(month) 
{
    var monthUppercase = month.toUpperCase();
    var monthInt = -1;
    var i = 0;
    for (i = 1; i <= 12; i++) 
    {
        if (CalSMN[i - 1] == monthUppercase) 
        {
            monthInt = i;
            break;
        }
    }
    return monthInt;
}

function ValidateDate(dateToValidate) 
{
    var re = new RegExp("^\\d{1,2}\\-[a-zA-Z]{3}\\-\\d{2}$");
    var m = re.exec(dateToValidate);
    if (m != null) 
    {
        var date_array = dateToValidate.split('-');

        var day = date_array[0];

        var month = date_array[1];
        var monthInt = GetMonth(month);

        var year = date_array[2];
        var yearInt = GetFullYear(year);

        source_date = new Date(yearInt, monthInt-1, day);

        var fullYear = source_date.getFullYear();
        var fullYearStr = fullYear.toString(10);

        if (year == fullYearStr.substr(2) && (monthInt-1) == source_date.getMonth() && day == source_date.getDate()) 
        {
            return true;
        }
    }
    return false;
}

if (typeof(Sys) != "undefined"){
    Sys.Application.notifyScriptLoaded();
}