ÿþfunction checkJS() {

    alert("sdf");

}

//this function will save value in cookie if you click the tab

function loadTab(){

	if(getCookie('Tab')=="")//this case begin load page

		changeTab(1,4);

	else

		changeTab(getCookie('Tab'),4);

}

function get_random(rank) {

    var ranNum = Math.floor(Math.random() * rank);

    return ranNum;

}





window.onload =loadTab;

function changeTab(n,t) {

		for (var i =1; i <= t; i ++) {

			if (i == n) {

				if(document.getElementById('tab'+i)!=null)//this case is orther the page

				{document.getElementById('tab'+i).className = 'current';

				document.getElementById('contentds_'+i).style.display = 'block';

				setCookie('Tab',i);

				}

			} else {

				if(document.getElementById('tab'+i)!=null)

				{

				document.getElementById('tab'+i).className = '';	

				document.getElementById('contentds_'+i).style.display = 'none';

				}

			}			

		}

		//return false;

}

function changeTab2(n, t) {

    for (var i = 1; i <= t; i++) {

        if (i == n) {

            if (document.getElementById('tab2' + i) != null)//this case is orther the page

            {

                document.getElementById('tab2' + i).className = 'current';

                document.getElementById('contentds2_' + i).style.display = 'block';

                setCookie('Tab', i);

            }

        } else {

            if (document.getElementById('tab2' + i) != null) {

                document.getElementById('tab2' + i).className = '';

                document.getElementById('contentds2_' + i).style.display = 'none';

            }

        }

    }

    //return false;		

}

function getCookie(Name){ 

var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair

if (document.cookie.match(re)) //if cookie found

return document.cookie.match(re)[0].split("=")[1] //return its value

return ""

}



function setCookie(name, value){

document.cookie = name+"="+value //cookie value is domain wide (path=/)

}	

function errorHandler(msg,url,line){

 strErr = "INTERNAL ERROR :"

 strErr += "\n" + msg

 strErr += "\n IN LINE=" + line + ".";

  alert(strErr);

return true; 

}

window.onerror = errorHandler;



var loaded = new Array();



function F_loadRollover(image,imageName) {	

   if (image && image.src &&

    (null == image.out || typeof(image.out) == typeof(void(0)))) {

      s = image.src;

      image.out = new Image();

      image.out.src = s;

      image.over = new Image();

      if (imageName.lastIndexOf('/') >= 0 || imageName.lastIndexOf('\\') >=0) {

         s = imageName;

      } else {

         i = s.lastIndexOf('/');

         if (i<0) i = s.lastIndexOf('\\');

         if (i<0) { s = imageName; }

         else     { s = s.substring(0,i+1) + imageName; }

      }

      image.over.src = s;

      loaded[image.name] = image;

   }

}



function F_roll(imageName, over) {

	var index, tmpItem;

	

	

	if (document.images) {

		if (over) { 

			imageObject = "over"; 

			

			if (imageName.indexOf('prod') != -1){

				for(index=0; index<productArray.length; index++){

					tmpItem=productArray[index];

					

					if (tmpItem.getProdID() == imageName && tmpItem.getIsOver() == 1){

						document.images["prodImg"].src = tmpItem.getOverImage();

						break;

					}

				}

			}

		}

		else { imageObject = "out"; }

   image = loaded[imageName];

   if (image) {

       ref = eval("image."+imageObject);

       if (ref) image.src = eval("image."+imageObject+".src");

   }

   if (window.event)

      window.event.cancelBubble = true;

   }

}



function checkDate(tmpDate){

	var tmp = tmpDate;

	

	where=tmp.indexOf("/")

	month = tmp.substring(0, where);

	year = tmp.substring(where + 1,tmp.length);

	

	if((where<0)||(where!=2)||(month.length>2)||(parseInt(month)>12)||(parseInt(month)<1)||(year.length!=2 && year.length!=4))

		return false;

	else

		return true;

}



function checkEmail(str){

	if (str.indexOf("@")==-1 || str.charAt(0)=="@" || str.indexOf(".")==-1 || str.charAt(0)=="." || str.charAt(str.indexOf("@")+1)=="." )

		return 0;

	else

		return 1;		

}



function emailCheck (emailStr) {

	var emailPat=/^(.+)@(.+)$/;

	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";

	var validChars="\[^\\s" + specialChars + "\]";

	var quotedUser="(\"[^\"]*\")";

	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;

	var atom=validChars + '+';

	var word="(" + atom + "|" + quotedUser + ")";

	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");

	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");

	var matchArray=emailStr.match(emailPat);

	

	if (matchArray==null) {

		return false;

	}

	

	var user=matchArray[1];

	var domain=matchArray[2];



	if (user.match(userPat)==null) {

		return false;

	}



	var IPArray=domain.match(ipDomainPat);

	

	if (IPArray!=null) {

		for (var i=1;i<=4;i++) {

		    if (IPArray[i]>255) {

				return false;

			}

		}

		return true;

	}



	var domainArray=domain.match(domainPat);

	if (domainArray==null) {

	    return false;

	}



	var atomPat=new RegExp(atom,"g");

	var domArr=domain.match(atomPat);

	var len=domArr.length;

	if (domArr[domArr.length-1].length<2 || 

		domArr[domArr.length-1].length>3) {

		return false;

	}



	if (len<2) {

		var errStr="This address is missing a hostname!";

		return false;

	}

	

	return true;

}



function IsNumeric(ch){



	if (ch=="0"||ch=="1"||ch=="2"||ch=="3"||ch=="4"||ch=="5"||ch=="6"||ch=="7"||ch=="8"||ch=="9")

		return 1;

	else

		return 0;

}



function IsNumber(str){

	var i, ch;

	

	for (i=0; i<str.length; i++){

	

		ch = str.substring(i,i+1);

		if (!IsNumeric(ch)){

			return 0;

		}	

	}

	return 1;

}



function IsNumeric1(ch){



	if (ch=="0"||ch=="1"||ch=="2"||ch=="3"||ch=="4"||ch=="5"||ch=="6"||ch=="7"||ch=="8"||ch=="9"||ch=="."||ch==",")

		return 1;

	else

		return 0;

}



function IsFloat(str){

	var i, ch;

	

	for (i=0; i<str.length; i++){

	

		ch = str.substring(i,i+1);

		if (!IsNumeric1(ch)){

			return 0;

		}	

	}

	return 1;

}

function isInteger(S) {

    var L = S.length;

    if (S == 0) {

        alert("Vui lòng nh­p sÑ l°
ãng cho s£n ph©m!"); //bat buoc phai nhan vao 

        return false;

    }

    for (var i = 0; i < L; ++i)

        if (S.charAt(i) < '0' || S.charAt(i) > '9') {

        alert("SÑ l°
¡
ng buÙc ph£i là sÑ nguyên không âm và lÛn h¡
n không!"); //o nay bat buoc phai nhap voi mot con so nguyen

        return false;

    }

    return true;

}

function popup(url, ext_url, w, h, scrollable){

	var popup, left, top, setting;

	left=screen.width?(screen.width-w)/2:0;

	top=screen.width?(screen.height-h)/2:0;



	setting = "width=" + w + ",height=" + h + ", scrollbars=" + scrollable + ", dependent=yes, " + "top=" + top + ",left=" + left + "'";

	popup = window.open("","test",setting);

    popup.location.href=url + ext_url;

//	if (popup.opener == null) { 

//   		popup.opener = self; 

//	}

	

}

function checkValidDate(dateStr) {

    // dateStr must be of format month day year with either slashes

    // or dashes separating the parts. Some minor changes would have

    // to be made to use day month year or another format.

    // This function returns True if the date is valid.

    var slash1 = dateStr.indexOf("/");

    if (slash1 == -1) { slash1 = dateStr.indexOf("-"); }

    // if no slashes or dashes, invalid date

    if (slash1 == -1) { return false; }

    var dateMonth = dateStr.substring(0, slash1)

    var dateMonthAndYear = dateStr.substring(slash1+1, dateStr.length);

    var slash2 = dateMonthAndYear.indexOf("/");

    if (slash2 == -1) { slash2 = dateMonthAndYear.indexOf("-"); }

    // if not a second slash or dash, invalid date

    if (slash2 == -1) { return false; }

    var dateDay = dateMonthAndYear.substring(0, slash2);

    var dateYear = dateMonthAndYear.substring(slash2+1, dateMonthAndYear.length);

    if ( (dateMonth == "") || (dateDay == "") || (dateYear == "") ) { return false; }

    // if any non-digits in the month, invalid date

    for (var x=0; x < dateMonth.length; x++) {

        var digit = dateMonth.substring(x, x+1);

        if ((digit < "0") || (digit > "9")) { return false; }

    }

    // convert the text month to a number

    var numMonth = 0;

    for (var x=0; x < dateMonth.length; x++) {

        digit = dateMonth.substring(x, x+1);

        numMonth *= 10;

        numMonth += parseInt(digit);

    }

    if ((numMonth <= 0) || (numMonth > 12)) { return false; }

    // if any non-digits in the day, invalid date

    for (var x=0; x < dateDay.length; x++) {

        digit = dateDay.substring(x, x+1);

        if ((digit < "0") || (digit > "9")) { return false; }

    }

    // convert the text day to a number

    var numDay = 0;

    for (var x=0; x < dateDay.length; x++) {

        digit = dateDay.substring(x, x+1);

        numDay *= 10;

        numDay += parseInt(digit);

    }

    if ((numDay <= 0) || (numDay > 31)) { return false; }

    // February can't be greater than 29 (leap year calculation comes later)

    if ((numMonth == 2) && (numDay > 29)) { return false; }

    // check for months with only 30 days

    if ((numMonth == 4) || (numMonth == 6) || (numMonth == 9) || (numMonth == 11)) { 

        if (numDay > 30) { return false; } 

    }

    // if any non-digits in the year, invalid date

    for (var x=0; x < dateYear.length; x++) {

        digit = dateYear.substring(x, x+1);

        if ((digit < "0") || (digit > "9")) { return false; }

    }

    // convert the text year to a number

    var numYear = 0;

    for (var x=0; x < dateYear.length; x++) {

        digit = dateYear.substring(x, x+1);

        numYear *= 10;

        numYear += parseInt(digit);

    }

    // Year must be a 2-digit year or a 4-digit year

    if ( (dateYear.length != 2) && (dateYear.length != 4) ) { return false; }

    // if 2-digit year, use 50 as a pivot date

    if ( (numYear < 50) && (dateYear.length == 2) ) { numYear += 2000; }

    if ( (numYear < 100) && (dateYear.length == 2) ) { numYear += 1900; }

    if ((numYear <= 0) || (numYear > 9999)) { return false; }

    // check for leap year if the month and day is Feb 29

    if ((numMonth == 2) && (numDay == 29)) {

        var div4 = numYear % 4;

        var div100 = numYear % 100;

        var div400 = numYear % 400;

        // if not divisible by 4, then not a leap year so Feb 29 is invalid

        if (div4 != 0) { return false; }

        // at this point, year is divisible by 4. So if year is divisible by

        // 100 and not 400, then it's not a leap year so Feb 29 is invalid

        if ((div100 == 0) && (div400 != 0)) { return false; }

    }

    // date is valid

    return true;

}

function GetDay(strDate)

{

    var slash=strDate.indexOf("/");

    var dateDay=strDate.substring(0,slash);

    // convert the text day to a number

    var numDay = 0;

    for (var x=0; x < dateDay.length; x++) {

        var digit = dateDay.substring(x, x+1);

        numDay *= 10;

        numDay += parseInt(digit);

    }

    return numDay;

}

function GetMonth(strDate)

{

    var slash=strDate.indexOf("/");

    var dateMonthAndYear = strDate.substring(slash+1, strDate.length);

    var slash2 = dateMonthAndYear.indexOf("/");

    var dateMonth = dateMonthAndYear.substring(0, slash2);

    var numMonth = 0;

    for (var x=0; x < dateMonth.length; x++) {

        var digit = dateMonth.substring(x, x+1);

        numMonth *= 10;

        numMonth += parseInt(digit);

    }

    return numMonth;

}

function GetYear(strDate)

{

    var slash=strDate.indexOf("/");

    var dateMonthAndYear = strDate.substring(slash+1, strDate.length);

    var slash2 = dateMonthAndYear.indexOf("/");

    var dateYear = dateMonthAndYear.substring(slash2+1, dateMonthAndYear.length);

    var numYear = 0;

    for (var x=0; x < dateYear.length; x++) {

        digit = dateYear.substring(x, x+1);

        numYear *= 10;

        numYear += parseInt(digit);

    }

    return numYear;

}

// if((GetDay(strFromDate)+GetMonth(strFromDate)+GetYear(strFromDate)) > (GetDay(strToDate) + GetMonth(strToDate) + GetYear(strToDate)))

function closeAll(){

    var lstStatistic=document.getElementById("lstStatistic");

    var strong = lstStatistic.getElementsByTagName("STRONG");

    var ul = lstStatistic.getElementsByTagName("UL");        

    for(var i =0; i<ul.length;i++) 

        ul[i].style.display="none";

     for(var i =0; i<strong.length;i++) 

        strong[i].style.display="none";            

}

function viewAll(obj){

    var viewall = obj.parentNode;

    viewall.style.display="none";

    var more = viewall.parentNode.getElementsByTagName("UL")[1];

    more.style.display="block";

    

}

function getCookie(c_name)

{

    if (document.cookie.length>0)

      {

      c_start=document.cookie.indexOf(c_name + "=");

      if (c_start!=-1)

        { 

        c_start=c_start + c_name.length+1; 

        c_end=document.cookie.indexOf(";",c_start);

        if (c_end==-1) c_end=document.cookie.length;

        return unescape(document.cookie.substring(c_start,c_end));

        } 

      }

    return "";

}

function setCookie(c_name,value,expiredays)

{

    var exdate=new Date();exdate.setDate(exdate.getDate()+expiredays);

    document.cookie=c_name+ "=" +escape(value)+

    ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());

}



function loadPage(){

//    if(getCookie('curItem')!=null)

//        viewItems(getCookie('curItem'));



//    var sessionField = document.getElementById("sessionField");

//    var sessionValue = sessionField.value;

//    if (sessionValue == "") {

//     alert("Storing new session value");

//     sessionField.value = "Hello World";

//      alert(sessionField.value);

//    }

//    else {

//     alert("Old session value: " + sessionValue);

//    } 

   

   }

function checkImageFile(imageName){

	subsrc = imageName.substring(imageName.lastIndexOf(".") + 1, imageName.length);

	subsrc = subsrc.toLowerCase();

						

	if ((subsrc != "") && (subsrc != "gif") && (subsrc != "jpg") && (subsrc != "jpeg"))

		return false;			

	else

		return true;

}

function openWindow(file, width, height) {

    javascript: window.showModalDialog(file, '', 'dialogHeight:' + height + 'px;dialogWidth:' + width + 'px;center:Yes;help:No;scroll:No;resizable:No;status:No;close:No')

    return false;

}







function showup(id_of_link, id_of_tab, id_of_link_timeout, id_of_tab_timeout) {

    document.getElementById('secondlevel_one').style.display = 'none';

    document.getElementById('secondlevel_two').style.display = 'none';

    document.getElementById('secondlevel_three').style.display = 'none';









    document.getElementById(id_of_link).style.display = 'block';

    document.getElementById('mainlvl_one').className = 'empty';

    document.getElementById('mainlvl_two').className = 'empty';

    document.getElementById('mainlvl_three').className = 'empty';







    document.getElementById(id_of_tab).className = 'selected';



}







//Kiem tra du lieu ngay

function CheckDate(field) {

    var checkstr = "0123456789";

    var DateField = field;

    var Datevalue = "";

    var DateTemp = "";

    var seperator = "/";

    var day;

    var month;

    var year;

    var leap = 0;

    var err = 0;

    var i;

    err = 0;

    DateValue = DateField.value;

    /* Delete all chars except 0..9 */

    for (i = 0; i < DateValue.length; i++) {

        if (checkstr.indexOf(DateValue.substr(i, 1)) >= 0) {

            DateTemp = DateTemp + DateValue.substr(i, 1);

        }

    }

    DateValue = DateTemp;

    /* Always change date to 8 digits - string*/

    /* if year is entered as 2-digit / always assume 20xx 

    HungDD edit : if year is entered as 2-digit / if 2 digits of year =< 70 assume 20xx / else assume 19xx

    */

    if (DateValue.length == 6) {

        var str = DateValue.substr(4, 2);

        //alert("str : " + str);

        var y = 0;

        if (str == "08") y = 8;

        else if (str == "09") y = 9;

        else

            y = parseInt(str);

        //alert("y : " + y);



        var strYear = y < 10 ? "0" + y : "" + y;



        //alert("strYear : " + strYear);

        if (y > 70)

            DateValue = DateValue.substr(0, 4) + '19' + strYear;

        else

            DateValue = DateValue.substr(0, 4) + '20' + strYear;

    }



    if (DateValue.length != 8) {

        //hungdd edit 05/05/2009

        /*replace '/' & '-' & '.' to '/' */

        var strDate = DateField.value;

        var currentDate = new Date();

        var reg = /\d/;

        var pattern = /\/{1,}/g;

        if (strDate.indexOf(".") > -1 || strDate.indexOf("-") > -1) {

            strDate = strDate.replace(/\./g, "/");

            strDate = strDate.replace(/-/g, "/");

            strDate = strDate.replace(pattern, "/");

            var sDate = strDate.substring(0, strDate.indexOf("/"));

            strDate = strDate.replace(sDate + "/", "");

            var sMonth = strDate.substring(0, strDate.indexOf("/"));

            strDate = strDate.replace(sMonth + "/", "");

            var sYear = strDate.substring(strDate.length - 2, strDate);

            if (sMonth == null || sMonth == "") {

                sMonth = sYear;

                sYear = currentDate.getFullYear();

            }

            //alert(sDate + ";" + sMonth + ";" + sYear);

            if (reg.test(sDate) == true && reg.test(sMonth) == true && reg.test(sYear) == true) {

                /*Compile to DateTime string*/

                sDate = sDate.length == 1 ? "0" + sDate : sDate;

                sMonth = sMonth.length == 1 ? "0" + sMonth : sMonth;

                var intYear = parseInt(sYear);

                switch (sYear.length) {

                    case 1:

                        sYear = "200" + sYear;

                        break;

                    case 2:

                        sYear = intYear <= 70 ? "20" + sYear : "19" + sYear;

                        break;

                }

                //alert(date + ";" + month + ";" + year);

                DateValue = sDate + sMonth + sYear;

            }

            else

                err = 19;

        }

        //end : hungdd edit 05/05/2009

        else {

            if (reg.test(strDate) == true) {

                var intDate = parseInt(strDate);

                var myDate = new Date();

                myDate.setFullYear(currentDate.getFullYear(), currentDate.getMonth() + 1, 1);

                myDate.setDate(myDate.getDate() - 1);

                if (intDate > myDate.getDate() || intDate <= 0)

                    err = 25;

                else {

                    DateValue = intDate < 10 ? "0" + strDate : strDate;

                    var month_ = currentDate.getMonth() + 1;

                    DateValue += month_ < 10 ? "0" + month_ : "" + month_;

                    DateValue += currentDate.getFullYear();

                }

            }

            else

                err = 19;

        }

    }

    //end HungDD edit 

    /* year is wrong if year = 0000 */

    year = DateValue.substr(4, 4);

    if (year == 0) {

        err = 20;

    }

    /* Validation of month*/

    month = DateValue.substr(2, 2);

    if ((month < 1) || (month > 12)) {

        err = 21;

    }

    /* Validation of day*/

    day = DateValue.substr(0, 2);



    if (year <= 1900) {

        err = 18;

    }

    if (day < 1) {

        err = 22;

    }

    /* Validation leap-year / february / day */

    if ((year % 4 == 0) || (year % 100 == 0) || (year % 400 == 0)) {

        leap = 1;

    }

    if ((month == 2) && (leap == 1) && (day > 29)) {

        err = 23;

    }

    if ((month == 2) && (leap != 1) && (day > 28)) {

        err = 24;

    }

    /* Validation of other months */

    if ((day > 31) && ((month == "01") || (month == "03") || (month == "05") || (month == "07") || (month == "08") || (month == "10") || (month == "12"))) {

        err = 25;

    }

    if ((day > 30) && ((month == "04") || (month == "06") || (month == "09") || (month == "11"))) {

        err = 26;

    }

    /* if 00 ist entered, no error, deleting the entry */

    if ((day == 0) && (month == 0) && (year == 00)) {

        err = 0; day = ""; month = ""; year = ""; seperator = "";

    }

    /* if no error, write the completed date to Input-Field (e.g. 13.12.2001) */

    if (err == 0) {

        DateField.value = day + seperator + month + seperator + year;

        return true;

    }

    else if (err = 18)/* Error-message if err != 0 */

    {

        DateField.value = "";

        DateField.focus();

        //GetAlertError(iTotal, DSAlert, "0030");

        alert("Ngày nh­p không 
úng");

        return false;

    }

    else {

        DateField.value = "";

        DateField.focus();

        //GetAlertError(iTotal, DSAlert, "0031");

        alert("Ngày nh­p không 
úng");

        return false;

    }

}

//loai bo khoang trang

function trim(txt) {

    txt = txt.replace(/^(\s)+/, '');

    txt = txt.replace(/(\s)+$/, '');

    return txt;

}

//kiem tra du lieu phai la so

function checkNumeric(field) {

    var re;

    re = /,/g;

    var value = field.value.replace(re, '');

   

    if (trim(field.value) == "") {

        field.value = "";

        return false;

    }

    if (isNaN(value)) {

        //GetAlertError(iTotal, DSAlert, "0013");

        alert("Dï liÇu ph£i là sÑ");

        field.value = "";

        field.focus();

        return false;

   }

    if (value < 0) {

        //alert("Must not a negative numeric or zero!");

        //GetAlertError(iTotal, DSAlert, "0012");

        alert("Dï liÇu buÙc ph£i là sÑ và không 
°
ãc là sÑ 0");

        field.value = "";

        field.focus();

        return false;

    }

    FormatNumericWithSeparate(field);

}

//dinh so thang chuoi co dau , VD 200000 - > 200,000 

function FormatNumericWithSeparate(field) {

    var DecimalNumber = 2;

    var DecimalChar = ".";

    var SeperateChar = ",";

    var ValueString = field.value;

    var ValueStringAfterDecimal = "";

    var ValueStringNew = "";

    if (field.value < 0)

        ValueString = ValueString.substring(1, ValueString.length); //Bo dau tru

    if (ValueString.indexOf(DecimalChar) != -1) {

        ValueStringAfterDecimal = ValueString.substring(ValueString.indexOf(DecimalChar), ValueString.indexOf(DecimalChar) + 1 + DecimalNumber) // Tinh luon dau cham

        ValueString = ValueString.substring(0, ValueString.indexOf(DecimalChar))

    }



    if (ValueStringAfterDecimal.indexOf(SeperateChar) != -1) {

        alert("Không ph£i là dï liÇu sÑ!");

        field.value = "";

        field.focus();

        return;

    }

    ValueString = ValueString.replace(/,/g, '');

    ValueStringNew = "";

    while (ValueString.length > 3) {

        ValueStringNew = SeperateChar + ValueString.substring(ValueString.length - 3, ValueString.length) + ValueStringNew;

        ValueString = ValueString.substring(0, ValueString.length - 3);

    }

    if (DecimalNumber != 0)

        ValueStringNew = ValueString + ValueStringNew + ValueStringAfterDecimal;

    else

        ValueStringNew = ValueString + ValueStringNew;



    if (field.value < 0)

        ValueStringNew = "- " + ValueStringNew;



    field.value = ValueStringNew;

}

function checkInteger(field) {

    var value = field.value;

    if (isNaN(value)) {



        alert("SÑ không hãp lÇ!");

        field.focus();

        field.value = "";

        return false;

    }

    else {

        if (value < 0) {

            alert("SÑ không 
°
ãc là sÑ âm!");

            field.focus();

            field.value = "";

            return false;

        }

        else {

            field.value = Math.round(field.value);

            return true;

        }

    }

}

//rang buoc phai nhap trong khoang tu bao nhieu den bao nhieu

function checkInputInMonth(field, from, to) {

    if (checkInteger(field)) {

        var value = field.value;

        if (parseInt(value) < from || parseInt(value) > to){

            alert("Dï liÇu sÑ ph£i n±m trong kho£ng " + from + " 
¿n " + to);

            field.focus();

            field.value = "";

            return false;

        }

   }

   //return true;


}



//chon dau check tat ca

function CheckAll(Ctl, GridName, BeginIndex, EndIndexExt, GridCtl) {

    var value = document.getElementById(Ctl).checked;

    var i;

    count = document.getElementById(GridName).rows.length;

    if (count > 1) {

        for (i = BeginIndex; i < document.getElementById(GridName).rows.length + EndIndexExt; i++) {

            if (i <= 9) {

                document.getElementById(GridName + "_ctl0" + i + "_" + GridCtl).checked = value;

            }

            else {

                document.getElementById(GridName + "_ctl" + i + "_" + GridCtl).checked = value;

            }

        }

    }

}