//ham lay gia tri cua tham so tren url
function getPramJs(param){  
    var query = window.location.search.substring(1);  
    var parms = query.split('&');  
    for (var i=0; i<parms.length; i++)
    {  
        var pos = parms [i].indexOf('=');  
        if (pos > 0)
        {  
            var key = parms [i].substring(0,pos).toLowerCase();  
            var val = parms [i].substring(pos+1);  
            if(key == param.toLowerCase())  
            return val;  
        }  
    }  
    return null;  
}
//ham lay dia chi url hien tai
function getUrlLocal() {
    var requestURL = window.document.location.toString();
    var end = requestURL.lastIndexOf("/") + 1;
    requestURL = requestURL.substring(0, end);

    return requestURL;
}

/*String*/
function Trim(iStr) {
    while (iStr.charCodeAt(0) <= 32) {
        iStr = iStr.substr(1);
    }

    while (iStr.charCodeAt(iStr.length - 1) <= 32) {
        iStr = iStr.substr(0, iStr.length - 1);
    }

    return iStr;
}
function Left(str, n) {
    if (n <= 0)
        return "";
    else if (n > String(str).length)
        return str;
    else
        return String(str).substring(0, n);
}

function Right(str, n) {
    if (n <= 0)
        return "";
    else if (n > String(str).length)
        return str;
    else {
        var iLen = String(str).length;
        return String(str).substring(iLen, iLen - n);
    }
}
function CharReplace(iStr) {
    var r1 = /%26/g;
    var r2 = /%20/g;
    var r3 = /%22/g;
    iStr = iStr.replace(r1, '&');
    iStr = iStr.replace(r2, ' ');
    iStr = iStr.replace(r3, '"');
    return iStr;
}

///46:.
///44:,
///47:/
function onkeypressnumber(e) {
    var e = window.event || e;
    var keyCode = e.keyCode ? e.keyCode : e.which ? e.which : e.charCode;
    if ((keyCode < 48 || keyCode > 57) && (keyCode != 46)) {
        e.returnValue = false;
    }
    else {
        e.returnValue = true;
    }
}
function onkeypressDate(e) {
    var e = window.event || e;
    var keyCode = e.keyCode ? e.keyCode : e.which ? e.which : e.charCode;
    if ((keyCode < 48 || keyCode > 57) && (keyCode != 47)) {
        e.returnValue = false;
    }
    else {
        e.returnValue = true;
    }
}
// Kiem tra textbox da duoc nhap lieu hay chua
function validate_required(field, alerttxt) {
    with (field) {
        if (value == null || value == "") {
            alert(alerttxt); return false;
        }
        else {
            return true;
        }
    }
}
//Check if string is non-blank
function isNonblank(txt) {
    var isNonblank_re = /\S/;
    return String(s).search(isNonblank_re) != -1
}

//	Kiem tra email nhap vao co hop le khong
function KiemTraEmail(txtEmail) {
    var email = txtEmail.value;
    if (email == null || email == "") {
        return true;
    }
    if (checkMail(email) == false) {
        alert("E-mail Nhập vào không hợp lệ");
        txtEmail.focus();
        return false;
    }
}
/*Check email*/
function checkMail(email) {
    var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
    if (filter.test(email)) {
        return true;
    }
    return false;
}
function CheckEmailAddress(Email) 
{
    Email = Trim(Email);
    while (Email != '') {
        c = Email.charAt(0);
        if (c == ' ' || c == '<' || c == 39 || c == ':' || c == '.') {
            Email = Email.substr(1);
        }
        else {
            break;
        }
    }
    i = Email.indexOf('>');
    if (i == -1) {
        while (Email != '') {
            c = Email.charAt(Email.length - 1);
            if (c == ' ' || c == 39 || c == '.') {
                Email = Email.substr(0, Email.length - 1);
            }
            else {
                break;
            }
        }
    }
    else {
        Email = Email.substr(0, i);
    }
    if (Email.length > 96)
        return '';
    i = Email.lastIndexOf('@');
    j = Email.lastIndexOf('.');
    if (i < j)
        i = j;
    switch (Email.length - i - 1) {
        case 2:
            break;
        case 3:
            switch (Email.substr(i)) {
                case '.com':
                case '.net':
                case '.org':
                case '.edu':
                case '.mil':
                case '.gov':
                case '.biz':
                case '.pro':
                case '.int':
                    break;
                default:
                    return '';
            }
            break;
        default:
            switch (Email.substr(i)) {
                case '.name':
                case '.info':
                    break;
                default:
                    return '';
            }
            break;
    }
    Email = Email.toLowerCase();
    if (Email == '')
        return '';
    if (Email.indexOf(' ') != -1)
        return '';
    if (Email.indexOf('..') != -1)
        return '';
    if (Email.indexOf('.@') != -1)
        return '';
    if (Email.indexOf('@.') != -1)
        return '';
    if (Email.indexOf(':') != -1)
        return '';
    for (i = 0; i < Email.length; i++) {
        c = Email.charAt(i);
        if (c >= '0' && c <= '9')
            continue;
        if (c >= 'a' && c <= 'z')
            continue;
        if ('`~!#$%^&*-_+=?/\\|@.'.indexOf(c) != -1)
            continue;
        return '';
    }
    if ((i = Email.indexOf('@')) == -1)
        return '';
    if (Email.substr(i + 1).indexOf('@') != -1)
        return '';
    if (Email.charAt(0) == '.' || Email.charAt(Email.length - 1) == '.')
        return '';
    return Email;
}

// Check if string is a whole number(digits only).
function isWhole(s) {
    var isWhole_re = /^\s*\d+\s*$/;
    return String(s).search(isWhole_re) != -1
}

//// checks that an input string is an integer, with an optional +/- sign character.
function isInteger(s) {
    var isInteger_re = /^\s*(\+|-)?\d+\s*$/;
    return String(s).search(isInteger_re) != -1
}

// Checks that an input string is a decimal number, with an optional +/- sign character.
function isDecimal(s) {
    var isDecimal_re = /^\s*(\+|-)?((\d+(\.\d+)?)|(\.\d+))\s*$/;
    return String(s).search(isDecimal_re) != -1
}
// Check if string is currency
function isCurrency(s) {
    var isCurrency_re = /^\s*(\+|-)?((\d+(\.\d\d)?)|(\.\d\d))\s*$/;
    return String(s).search(isCurrency_re) != -1
}
// This function removes non-numeric characters
function stripNonNumeric(str) {
    str += '';
    var rgx = /^\d|\.|-$/;
    var out = '';
    for (var i = 0; i < str.length; i++) {
        if (rgx.test(str.charAt(i))) {
            if (!((str.charAt(i) == '.' && out.indexOf('.') != -1) ||
             (str.charAt(i) == '-' && out.length != 0))) {
                out += str.charAt(i);
            }
        }
    }
    return out;
}
// Check for valid credit card type/number
function isValidCC(cctype, ccnumber) {
    var creditCardList = [
    //type      prefix   length
     ["amex", "34", 15],
     ["amex", "37", 15],
     ["disc", "6011", 16],
     ["mc", "51", 16],
     ["mc", "52", 16],
     ["mc", "53", 16],
     ["mc", "54", 16],
     ["mc", "55", 16],
     ["visa", "4", 13],
     ["visa", "4", 16]];

    var cc = getdigits(ccnumber);
    if (luhn(cc)) {
        for (var i in creditCardList) {
            if (creditCardList[i][0] == (cctype.toLowerCase())) {
                if (cc.indexOf(creditCardList[i][1]) == 0) {
                    if (creditCardList[i][2] == cc.length) {
                        return true;
                    }
                }
            }
        }
    }
    return false;
}
/*Format date*/
function dFormat(strDate) {
    var rStr = '';
    if (strDate == '') {
        sDate = rStr;
    }
    else {
        var tDates = strDate.split(" ");
        var tDay = tDates[0].split("/");
        var tTime = tDates[1].split(":");
        var oDay = new Date();
        oDay.setFullYear(tDay[2], tDay[0] - 1, tDay[1]);
        switch (oDay.getDay()) {
            case 0:
                rStr = 'Ch&#7911; nh&#7853;t'; break;
            case 1:
                rStr = 'Th&#7913; hai'; break;
            case 2:
                rStr = 'Th&#7913; ba'; break;
            case 3:
                rStr = 'Th&#7913; t&#432;'; break;
            case 4:
                rStr = 'Th&#7913; n&#259;m'; break;
            case 5:
                rStr = 'Th&#7913; s&#225;u'; break;
            case 6:
                rStr = 'Th&#7913; b&#7843;y'; break;
            default:
                rStr = ''; break;
        }
        rStr = rStr.concat(', ').concat(tDay[1]).concat('/').concat(tDay[0]).concat('/').concat(tDay[2]).concat(' | ');
        if (tDates[2] == 'AM') {
            if (tTime[0] < 10) {
                rStr = rStr.concat('0').concat(tTime[0]).concat(':');
            }
            else {
                rStr = rStr.concat(tTime[0]).concat(':');
            }
        }
        else {
            tTime[0] = 12 + parseInt(tTime[0]);
            rStr = rStr.concat(tTime[0]).concat(':');
        }

        if (tTime[1] < 10) {
            rStr = rStr.concat('0').concat(tTime[1]);
        }
        else {
            rStr = rStr.concat(tTime[1]);
        }

        rStr = rStr.concat(' GMT+7&nbsp;');
        sDate = rStr;
    }
}
function dmy(strDate) {
    var temp = new Array();
    temp = strDate.split('/');
    return temp[1].concat('/').concat(temp[0]).concat('/').concat(temp[2]);
}

/*number Format*/
function numberFormat(num, decimalNum, bolLeadingZero, bolParens, bolCommas) {
    if (isNaN(parseInt(num))) return "0";

    var tmpNum = num;
    var iSign = num < 0 ? -1 : 1;

    tmpNum *= Math.pow(10, decimalNum);
    tmpNum = Math.round(Math.abs(tmpNum))
    tmpNum /= Math.pow(10, decimalNum);
    tmpNum *= iSign;

    var tmpNumStr = new String(tmpNum);

    if (!bolLeadingZero && num < 1 && num > -1 && num != 0)
        if (num > 0)
        tmpNumStr = tmpNumStr.substring(1, tmpNumStr.length);
    else
        tmpNumStr = "-" + tmpNumStr.substring(2, tmpNumStr.length);

    if (bolCommas && (num >= 1000 || num <= -1000)) {
        var iStart = tmpNumStr.indexOf(".");
        if (iStart < 0)
            iStart = tmpNumStr.length;

        iStart -= 3;
        while (iStart >= 1) {
            tmpNumStr = tmpNumStr.substring(0, iStart) + "," + tmpNumStr.substring(iStart, tmpNumStr.length)
            iStart -= 3;
        }
    }
    if (bolParens && num < 0)
        tmpNumStr = "(" + tmpNumStr.substring(1, tmpNumStr.length) + ")";
    return tmpNumStr;
}
/*format number in textbox*/
/*thanh.lu - 09/11/2009*/
function RemoveFormat(str)
{
    var strReturn = str;
    while(strReturn.indexOf(',') != -1)
    {
        strReturn = strReturn.replace(',','');
    }
    return strReturn;
}
function numberFormat(nStr, idtxt) {

    nStr += '';
    x = nStr.split('.');
    x1 = x[0];
    var temp = RemoveFormat(x1);
    x1 = temp;
    x2 = x.length > 1 ? '.' + x[1] : '';
    var rgx = /(\d+)(\d{3})/;
    while (rgx.test(x1)) {
        x1 = x1.replace(rgx, '$1' + ',' + '$2');
    }
    document.getElementById(idtxt).value = x1 + x2;
}