var DOBday = "DOBDay";
var DOBmon = "DOBMon";
var DOByear = "DOBYear";

function TestDOBValidation(source, arguments) {
    arguments.isValid = false;
}

function cvMainDOB_ClientValidate(source, arguments) {
    var dateValid = true;
    dateValid = (checkValidDropDown('0', document.getElementById(source.controltovalidate.replace(DOByear, DOBday)))) ? dateValid : false;
    dateValid = (checkValidDropDown('0', document.getElementById(source.controltovalidate.replace(DOByear, DOBmon)))) ? dateValid : false;
    dateValid = (checkValidDropDown('0', document.getElementById(source.controltovalidate))) ? dateValid : false;

    if (dateValid == true) {
        dateValid = IsValidDate(document.getElementById(source.controltovalidate.replace(DOByear, DOBday)).value,
                                document.getElementById(source.controltovalidate.replace(DOByear, DOBmon)).value,
                                document.getElementById(source.controltovalidate).value);
    }
    arguments.IsValid = dateValid;
}

function IsValidDate(day, month, year) {

    var eStatus = true;
    //Determine if the given year is a leap year i.e. Feb=29
    var LeapYear = IsLeapYear(year);

    //if leap year then Feb can be no more than 29 days
    if (LeapYear) {
        if (month == 'Feb') {
            if (day > 29) {
                eStatus = false;
            }
        }
    }
    //if not leap year then Feb can be no more than 28 days
    if (!LeapYear) {
        if (month == 'Feb') {
            if (day > 28) {
                eStatus = false;
            }
        }
    }

    //Check for Apr,Jun,Sep,Nov are no more than 30
    if ((month == 'Apr') || (month == 'Jun') || (month == 'Sep') || (month == 'Nov')) {
        if (day > 30) {
            eStatus = false;
        }
    }
    return eStatus;
}

function IsLeapYear(Year) {
    if ((Year % 4 == 0) || (Year % 100 == 0) || (Year % 400 == 0)) {
        return true;
    }
    else {
        return false;
    }
}

function checkValidDropDown(initialValue, obj) {
    if (obj.value == initialValue) {
        return false;
    }
    else {
        return true;
    }
}

function ValidateNumberKeyPress(field, evt) {
    var charCode = (evt.which) ? evt.which : event.keyCode
    var keychar = String.fromCharCode(charCode);

    if (charCode > 31 && (charCode < 48 || charCode > 57) && keychar != "." && keychar != "-") {
        return false;
    }

    if (keychar == "." && field.value.indexOf(".") != -1) {
        return false;
    }

    if (keychar == "-") {
        if (field.value.indexOf("-") != -1 /* || field.value[0] == "-" */) {
            return false;
        }
        else {
            //save caret position
            var caretPos = getCaretPosition(field);
            if (caretPos != 0) {
                return false;
            }
        }
    }
    return true;
}

function ValidateNumberKeyUp(field) {
    //if(document.selection.type == "Text")
    //{
    //    return;
    //}

    //save caret position
    var caretPos = getCaretPosition(field);

    var fdlen = field.value.length;

    UnFormatNumber(field);

    var IsFound = /^-?\d+\.{0,1}\d*$/.test(field.value);
    if (!IsFound) {
        setSelectionRange(field, caretPos, caretPos);
        return false;
    }

    field.value = FormatNumber(field.value);

    fdlen = field.value.length - fdlen;


    setSelectionRange(field, caretPos + fdlen, caretPos + fdlen);
}

function ValidateAndFormatNumber(NumberTextBox) {
    if (NumberTextBox.value == "") return;

    UnFormatNumber(NumberTextBox);

    var IsFound = /^-?\d+\.{0,1}\d*$/.test(NumberTextBox.value);
    if (!IsFound) {
        alert("Not a number");
        NumberTextBox.focus();
        NumberTextBox.select();
        return;
    }

    if (isNaN(parseFloat(NumberTextBox.value))) {
        alert("Number exceeding float range");
        NumberTextBox.focus();
        NumberTextBox.select();
    }

    NumberTextBox.value = FormatNumber(NumberTextBox.value);
}

function FormatNumber(fnum) {
    var orgfnum = fnum;
    var flagneg = false;

    if (fnum.charAt(0) == "-") {
        flagneg = true;
        fnum = fnum.substr(1, fnum.length - 1);
    }

    psplit = fnum.split(".");

    var cnum = psplit[0],
        parr = [],
        j = cnum.length,
        m = Math.floor(j / 3),
        n = cnum.length % 3 || 3;

    // break the number into chunks of 3 digits; first chunk may be less than 3
    for (var i = 0; i < j; i += n) {
        if (i != 0) { n = 3; }
        parr[parr.length] = cnum.substr(i, n);
        m -= 1;
    }

    // put chunks back together, separated by comma
    fnum = parr.join(",");

    // add the precision back in
    //if (psplit[1]) {fnum += "." + psplit[1];}
    if (orgfnum.indexOf(".") != -1) {
        fnum += "." + psplit[1];
    }

    if (flagneg == true) {
        fnum = "-" + fnum;
    }

    return fnum;
}

function UnFormatNumber(obj) {
    if (obj.value == "") return;

    obj.value = obj.value.replace(/,/gi, "");
}

function getCaretPosition(objTextBox) {

    /* var objTextBox = window.event.srcElement; */

    var i = objTextBox.value.length;

    if (objTextBox.createTextRange) {
        objCaret = document.selection.createRange().duplicate();
        while (objCaret.parentElement() == objTextBox &&
          objCaret.move("character", 1) == 1) --i;
    }
    return i;
}

function setSelectionRange(input, selectionStart, selectionEnd) {
    if (input.setSelectionRange) {
        input.focus();
        input.setSelectionRange(selectionStart, selectionEnd);
    }
    else if (input.createTextRange) {
        var range = input.createTextRange();
        range.collapse(true);
        range.moveEnd('character', selectionEnd);
        range.moveStart('character', selectionStart);
        range.select();
    }
}