ÿþ// ==================================================================

// Tat ca cac JS  vtcnews 

// ==================================================================

var pageURL = 'http://vtc.vn/';

function SearchOnFocus(field) {

    if (field.value == 'Të khóa tìm ki¿m') { field.value = ''; }

}



function SearchOnBlur(field) {

    if (field.value == '') { field.value = 'Të khóa tìm ki¿m'; }

}



function keyCatch(e, url, txt) {

    if (window.event && window.event.keyCode == "13")

        goSearch(url, txt);

    else if (e.which) {

        if (e.which == 13)

            goSearch(url, txt);

    }

}

function goSearch(url, txt) {

    var textsearch = document.getElementById(txt).value;

    window.location.href = url + textsearch + '/index.htm';

}



function writeLayer(layerID, txt) {

    if (document.getElementById) {

        document.getElementById(layerID).innerHTML = txt;

    } else if (document.all) {

        document.all[layerID].innerHTML = txt;

    } else if (document.layers) {

        with (document.layers[layerID].document) {

            open();

            write(txt);

            close();

        }

    }

}



function getLayer(layerID) {

    if (document.getElementById) {

        return document.getElementById(layerID).innerHTML;

    } else if (document.all) {

        return document.all[layerID].innerHTML = txt;

    }

}



function makeBigerFont(layerID) {

    var tmpStr = "";

    tmpStr = getLayer(layerID);

    tmpStr = tmpStr.replace(/size=\"2\"/g, "size=3");

    tmpStr = tmpStr.replace(/size=2/g, "size=3");

    tmpStr = tmpStr.replace(/FONT-SIZE: 10pt/g, "FONT-SIZE: 12pt");

    tmpStr = tmpStr.replace(/font-size: 10pt/g, "font-size: 12pt");

    writeLayer(layerID, tmpStr);

    document.getElementById(layerID).style.fontSize = "12pt";

}



function setBigerFont(layerID) {

    makeBigerFont(layerID);

    createCookie("fontSize", 3, 30);

}

function makeSmallerFont(layerID) {

    var tmpStr = "";

    tmpStr = getLayer(layerID);

    tmpStr = tmpStr.replace(/size=\"3\"/g, "size=2");

    tmpStr = tmpStr.replace(/size=3/g, "size=2");

    tmpStr = tmpStr.replace(/FONT-SIZE: 12pt/g, "FONT-SIZE: 10pt");

    tmpStr = tmpStr.replace(/font-size: 12pt/g, "font-size: 10pt");

    writeLayer(layerID, tmpStr);

    document.getElementById(layerID).style.fontSize = "10pt";

}

function setSmallerFont(layerID) {

    makeSmallerFont(layerID);

    createCookie("fontSize", 2, 30);

}



function createCookie(name, value, days) {

    if (days) {

        var date = new Date();

        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));

        var expires = "; expires=" + date.toGMTString();

    }

    else var expires = "";

    document.cookie = name + "=" + value + expires + ";domain=.vtc.vn; path=/";

}



function readCookie(name) {

    var nameEQ = name + "=";

    var ca = document.cookie.split(';');

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

        var c = ca[i];

        while (c.charAt(0) == ' ') c = c.substring(1, c.length);

        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);

    }

    return null;

}



function eraseCookie(name) {

    createCookie(name, "", -1);

}



//adv

function setAdv(imgObj, linkObj, imgAdv, linkAdv) {

    document.getElementById(imgObj).src = imgAdv;

    document.getElementById(linkObj).href = linkAdv;

}



function shareAdv(imgObj, linkObj, arrayAdv, maxStep, curr) {

    if (curr == maxStep) { curr = 0; }

    curr = curr + 1;

    setAdv(imgObj, linkObj, arrayAdv[curr][1], arrayAdv[curr][0]);



    //setTimeout("shareAdv('"+imgObj+"','"+linkObj+"',arrayAdv,maxStep,curr)",3600);

}



// Load all cates for HomePage

function loadCateHomePage(cateHomeUrl) {

    $.ajax({

        url: cateHomeUrl,

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 5000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var cateName = 'cateXML';

                var cateID = $(this).find('CateID').text();

                cateName += cateID;



                var cateTitle = $(this).find('CateTile').text();

                var cateLink = $(this).find('CateLink').text();



                var contentCate;

                contentCate = '<div class="cateTitleDiv"><a href="' + cateLink + '" class="titlebai">' + cateTitle + '</a></div>'



                // Sub cate

                var subCateContent = '<div class="sup_mnnho cateSub">';

                var lenSubCates = $(this).find('ChildCate').size();

                var index = 0;



                $(this).find('ChildCate').each(function() {

                    index++;

                    var subCateName = $(this).find('ChildCateTitle').text();

                    var subCateLink = $(this).find('ChildCateLink').text();



                    subCateContent += '<a href="' + subCateLink + '" class="sup_mnnho">' + subCateName + '</a>';

                    if (index < lenSubCates) {

                        subCateContent += '&nbsp;|&nbsp;';

                    }

                });



                subCateContent += '</div>';



                // Add subcates content

                contentCate += subCateContent;



                // Top news of Cate

                var topCateContent = '<div>';



                var imgUrl = $(this).find('ImageUrl').text();

                var articleLink = $(this).find('Link').text();

                var articleTitle = $(this).find('Title').text();

                var articleMobileContent = $(this).find('MobileContent').text();



                if ($.trim(imgUrl).length > 0) {

                    if ((cateID == 432) || (cateID == 433)) {

                        topCateContent += '<a href="' + articleLink + '"><img class="cateImgTT24h" src="' + imgUrl + '"></a>';

                    }

                    else {

                        topCateContent += '<a href="' + articleLink + '"><img class="cateImg" src="' + imgUrl + '"></a>';

                    }

                }

                topCateContent += '<p style="margin-bottom:10px;margin-top:0px;"><a href="' + articleLink + '" class="title_nho">' + articleTitle + '</a></p>';

                topCateContent += '<span class="text">' + articleMobileContent + '</span>';

                topCateContent += '</div>';



                // Add top news of Cate

                contentCate += topCateContent;



                // Other news of Cate

                var otherNewsContent = '<div style="width:100%; float:left; padding-top:5px;">';



                $(this).find('OtherNew').each(function() {

                    var otherID = $(this).find('OtherID').text();

                    var otherLink = $(this).find('OtherLink').text();

                    var otherTitle = $(this).find('OtherTitle').text();

                    var otherImgUrl = $(this).find('OtherImageUrl').text();

                    var otherLead = $(this).find('OtherLead').text();



                    otherNewsContent += '<div class="cateOthers"><a id="#cate' + otherID + '" href="' + otherLink + '" class="dadua">' + otherTitle + '</a></div>';

                    otherNewsContent += '<div id="cate' + otherID + '" style="display:none;"><img src="' + otherImgUrl + '" style="float:left;width:100px; border:1px solid #000; margin-right:5px;"/>' + otherLead + '</div>';

                });

                otherNewsContent += '</div>';



                // Add other news

                contentCate += otherNewsContent;



                // Add all of content

                $('#' + cateName).append(contentCate);

            }); //close each(

        }

    });

}



// Load all cates for HomePage

function loadGameCateHomePage(cateHomeUrl) {

    $.ajax({

        url: cateHomeUrl,

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 5000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var cateName = 'cateXML';

                var cateID = $(this).find('CateID').text();

                cateName += cateID;



                var cateTitle = $(this).find('CateTile').text();

                var cateLink = $(this).find('CateLink').text();



                var contentCate;





                contentCate = '<div style="clear: both; background-color: rgb(33, 32, 33); padding-bottom: 10px;"><div style="background:url(/images/game/bg_cate.jpg) no-repeat; width:149px;height:29px; float:left; padding-bottom:10px;"><div class="textcate textcate_pad"><a href="' + cateLink + '">' + cateTitle + '</a></div></div>'



                // Sub cate

                var subCateContent = '<div class="bgSub"></div><a href="' + cateLink + '"><img src="/images/game/xemtiep.jpg" style="float:right;"/></a>';

                //                 var lenSubCates = $(this).find('ChildCate').size();

                //                 var index = 0;

                //                 

                //                 $(this).find('ChildCate').each(function(){

                //                    index ++;

                //                    var subCateName = $(this).find('ChildCateTitle').text();

                //                    var subCateLink = $(this).find('ChildCateLink').text();

                //                    

                //                    subCateContent += '<a href="' + subCateLink + '">' + subCateName + '</a>';

                //                    if (index < lenSubCates)

                //                    {

                //                        subCateContent += '&nbsp;|&nbsp;';

                //                    }

                //                 });



                //                 subCateContent += '</div>';



                // Add subcates content

                contentCate += subCateContent;



                // Top news of Cate

                var topCateContent = '';



                var imgUrl = $(this).find('ImageUrl').text();

                var articleLink = $(this).find('Link').text();

                var articleTitle = $(this).find('Title').text();

                var articleMobileContent = $(this).find('MobileContent').text();



                topCateContent += '<div style="padding:0px 12px; clear:both;">';

                topCateContent += '<a href="' + articleLink + '"><img src="' + imgUrl + '" class="imgtinhot" height="100px" style="float:left;"></a>';

                topCateContent += '<div class="textxanh" style="float:left; margin-left:20px; width:500px;">';

                topCateContent += '<a href="' + articleLink + '">' + articleTitle + '</a></p>';

                topCateContent += '<p class="textnd">' + articleMobileContent + '</p>';

                topCateContent += '</div></div>';



                // Add top news of Cate

                contentCate += topCateContent;



                // Other news of Cate

                var otherNewsContent = '<div style="clear:both;"><div  class="tinkhac"><ul>';



                $(this).find('OtherNew').each(function() {

                    var otherID = $(this).find('OtherID').text();

                    var otherLink = $(this).find('OtherLink').text();

                    var otherTitle = $(this).find('OtherTitle').text();

                    var otherImgUrl = $(this).find('OtherImageUrl').text();

                    var otherLead = $(this).find('OtherLead').text();



                    otherNewsContent += '<li><a href="' + otherLink + '">' + otherTitle + '</a></li>';

                });

                otherNewsContent += '</ul></div></div>';



                // Add other news

                contentCate += otherNewsContent;





                // Add all of content

                $('#' + cateName).append(contentCate);

            }); //close each(

        }

    });

}



//load Ajax

function loadTop3() {

    $.ajax({

        url: '/XMLFile/focusnews.xml',

        type: 'GET',

        dataType: 'xml',

        cache: false,

        timeout: 3000,

        success: function(xml) {

            var i = 0;

            $(xml).find('Table').each(function() {

                i++;

                // Chi hien thi 3 NewsTop dau

                if (i < 4) {

                    var link = $(this).find('Link').text();

                    var lead = $(this).find('Lead').text();

                    var title = $(this).find('Title').text();

                    var imageUrl = $(this).find('ImageUrl').text();



                    var content = '';

                    content += '<div style="float:left; width:100%; margin-bottom: 5px;" align="left"><a href="' + link + '" class="title_nho_top3">' + title + '</a></div>';

                    content += '<div style="float:left; width: 100%;">';

                    content += '<div style="float:left; width:62%;" class="text">' + lead + '</div>';

                    content += '<div style="float:right; width:34%;"><a href="' + link + '"><img src="' + imageUrl + '" class="imgTop4"></a></div>';

                    content += '</div>';



                    $('<div style="width: 100%;" align="left"></div>')

                         .html(content)

                         .appendTo('#top3');



                    $('<div style="float:left;width:100%;"></div>')

                        .html('<hr size="1" color="#cccccc"/>')

                        .appendTo('#top3');

                }

            }); //close each(

        }

    });

}



function loadTop4() {

    $.ajax({

        url: '/XMLFile/focusnews.xml',

        type: 'GET',

        dataType: 'xml',

        cache: false,

        timeout: 3000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var link = $(this).find('Link').text();

                var lead = $(this).find('Lead').text();

                var title = $(this).find('Title').text();

                var imageUrl = $(this).find('ImageUrl').text();



                var content = '';

                content += '<div style="float:left; width:100%; margin-bottom: 5px;" align="left"><a href="' + link + '" class="title_nho">' + title + '</a></div>';

                content += '<div style="float:left; width: 100%;">';

                content += '<div style="float:left; width:62%;" class="text">' + lead + '</div>';

                content += '<div style="float:right; width:34%;"><a href="' + link + '"><img src="' + imageUrl + '" class="imgTop4"></a></div>';

                content += '</div>';



                $('<div style="width: 100%;" align="left"></div>')

                     .html(content)

                     .appendTo('#top4');



                $('<div style="float:left;width:100%;"></div>')

                    .html('<hr size="1" color="#cccccc"/>')

                    .appendTo('#top4');



            }); //close each(

        }

    });

}



function loadHotNews() {

    $.ajax({

        url: '/XMLFile/hotnews.xml',

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 3000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var link = $(this).find('Link').text();

                var lead = $(this).find('Lead').text();

                var title = $(this).find('Title').text();



                $('<li></li>')

                     .html('<a href="' + link + '" title="' + lead + '" class="tinnong">' + title + '</a>')

                     .appendTo('.listHotNew ul');

            }); //close each(

        }

    });

}



function loadLeftAdv() {

    $.ajax({

        url: '/XMLFile/advleft.xml',

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 3000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var advUrl = $(this).find('AdvUrl').text();

                var logoFileName = $(this).find('LogoFileName').text();



                $('<li></li>')

                     .html('<a href="' + advUrl + '" target="_blank"><img src="' + logoFileName + '" width="139" class="leftAdvImg"></a>')

                     .appendTo('#AdvLeft div ul');

            }); //close each(

        }

    });

}



function loadRightAdv() {

    $.ajax({

        url: '/XMLFile/advright.xml',

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 3000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var advUrl = $(this).find('AdvUrl').text();

                var logoFileName = $(this).find('LogoFileName').text();



                $('<li></li>')

                     .html('<a href="' + advUrl + '" target="_blank"><img src="' + logoFileName + '" width="247" class="rightAdvImg"></a>')

                     .appendTo('#AdvRight div ul');

            }); //close each(

        }

    });

}





function loadRightAdvTop() {

    $.ajax({

        url: '/XMLFile/advrighttop.xml',

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 3000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var advUrl = $(this).find('AdvUrl').text();

                var logoFileName = $(this).find('LogoFileName').text();



                $('<div style="padding-bottom:4px" valign="top"></div>')

                     .html('<a href="' + advUrl + '" target="_blank"><img src="' + logoFileName + '" width="247" class="rightAdvImg"></a>')

                     .appendTo('#AdvRightTop');

            }); //close each(

        }

    });

}



function loadSideAdv(loader, xmlUrl, imgWidth) {

    $.ajax({

        url: xmlUrl,

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 3000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var advUrl = $(this).find('AdvUrl').text();

                var logoFileName = $(this).find('LogoFileName').text();



                $('<li></li>')

                     .html('<a href="' + advUrl + '" target="_blank"><img src="' + logoFileName + '" width="' + imgWidth + '" class="rightAdvImg"></a>')

                     .appendTo(loader);

            }); //close each(

        }

    });

}



function loadMainAdv(xmlUrl, divContent) {



    $.ajax({

        url: xmlUrl,

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 3000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var advUrl = $(this).find('AdvUrl').text();

                var logoFileName = $(this).find('LogoFileName').text();

                var advType = $(this).find('advType').text();

                if (advType == 'image') {

                    $('<div></div>')

                     .html('<a href="' + advUrl + '" target="_blank"><img src="' + logoFileName + '" width="710" height="75" class="rightAdvImg"></a>')

                     .appendTo(divContent);

                }

                else {

                    var fWidth = $(this).find('advWidth').text();

                    var fHeight = $(this).find('advHeight').text();

                    $('<div></div>')

                     .html('<a href="' + advUrl + '" target="_blank"><embed src="' + advUrl + '" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="' + fWidth + '" height="' + fHeight + '" quality="High" wmode="transparent" /></a>')

                     .appendTo(divContent);

                }

            }); //close each(

        }

    });

}



function loadTopMainAdv(xmlUrl, divContent) {

    $.ajax({

        url: xmlUrl,

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 3000,

        success: function(xml) {

            var index = 0;

            var divTopContentIndex;



            $(xml).find('Table').each(function() {

                index += 1;

                divTopContentIndex = divContent + index.toString();



                var advUrl = $(this).find('AdvUrl').text();

                var logoFileName = $(this).find('LogoFileName').text();



                $('<div></div>')

                     .html('<a href="' + advUrl + '" target="_blank"><img src="' + logoFileName + '" width="230" height="60" class="rightAdvImg"></a>')

                     .appendTo(divTopContentIndex);

            }); //close each(

        }

    });

}



function loadAdv(xmlUrl, divContent, imgWidth, imgHeight) {

    $.ajax({

        url: xmlUrl,

        type: 'GET',

        cache: false,

        dataType: 'xml',

        timeout: 3000,

        success: function(xml) {

            $(xml).find('Table').each(function() {

                var advUrl = $(this).find('AdvUrl').text();

                var logoFileName = $(this).find('LogoFileName').text();



                $('<div></div>')

                     .html('<a href="' + advUrl + '" target="_blank"><img src="' + logoFileName + '" width="' + imgWidth + '" height="' + imgHeight + '"></a>')

                     .appendTo(divContent);

            }); //close each(

        }

    });

}



function moveDivMain(mover, num, moverHeigh, moveTimer) {

    $(mover).animate({

        top: '+=' + moverHeigh

    }, moveTimer);

    if ($(mover).position().top == -moverHeigh * (num - 1)) {

        $(mover).animate({

            top: '+=' + moverHeigh

        }, moveTimer);

        $(mover).css("top", -moverHeigh * (2 * num - 1) + "px");

        $(mover).stop();

    }

}



function animateDivMain(mover, xmlUrl, moverHeight, moveTime, totalDelay) {

    var num = $(mover + " div").length;

    if (num > 1) {

        loadMainAdv(xmlUrl, mover);

        $(mover).css("top", -moverHeight * (2 * num - 1) + "px");

        setInterval("moveDivMain('" + mover + "'," + num + "," + moverHeight + "," + moveTime + ")", totalDelay);

    }

}



function animateDiv(mover, xmlUrl, moverHeight, moverWidth, moveTime, totalDelay) {

    var num = $(mover + " div").length;

    if (num > 1) {

        loadAdv(xmlUrl, mover, moverWidth, moverHeight);

        $(mover).css("top", -moverHeight * (2 * num - 1) + "px");

        setInterval("moveDivMain('" + mover + "'," + num + "," + moverHeight + "," + moveTime + ")", totalDelay);

    }

}



function slideShowPopup(catname, articleid, currPage) {



    var popW = 800, popH = 800;



    var leftPos = (window.screen.width - popW) / 2, topPos = (window.screen.height - popH) / 2;

    window.open(catname + '/slide-show/' + articleid + '/' + currPage + '/index.htm', 'slideshowpopup', 'width=' + popW + ',height=' + popH + ',top=' + topPos + ',left=' + leftPos + ',toolbar=no');

}



function showDialog(vLink, vWidth, vHeight) {

    return showWindow(vLink, false, true, true, false, false, false, false, true, true, vWidth, vHeight, 0, 0);

}

function showModalDialog(vLink, vWidth, vHeight) {

    return showWindow(vLink, false, false, false, false, false, false, false, true, true, vWidth, vHeight, 0, 0);

}



function showWindow(vLink, vStatus, vResizeable, vScrollbars, vMenubar, vToolbar, vLocation, vFullscreen, vTitlebar, vCentered, vWidth, vHeight, vTop, vLeft) {

    var sLink = (typeof (vLink.href) == 'undefined') ? vLink : vLink.href;



    winDef = '';

    winDef = winDef.concat('status=').concat((vStatus) ? 'yes' : 'no').concat(',');

    winDef = winDef.concat('resizable=').concat((vResizeable) ? 'yes' : 'no').concat(',');

    winDef = winDef.concat('menubar=').concat((vMenubar) ? 'yes' : 'no').concat(',');

    winDef = winDef.concat('scrollbars=').concat((vScrollbars) ? 'yes' : 'no').concat(',');

    winDef = winDef.concat('toolbar=').concat((vToolbar) ? 'yes' : 'no').concat(',');

    winDef = winDef.concat('location=').concat((vLocation) ? 'yes' : 'no').concat(',');

    winDef = winDef.concat('fullscreen=').concat((vFullscreen) ? 'yes' : 'no').concat(',');

    winDef = winDef.concat('titlebar=').concat((vTitlebar) ? 'yes' : 'no').concat(',');

    winDef = winDef.concat('height=').concat(vHeight).concat(',');

    winDef = winDef.concat('width=').concat(vWidth).concat(',');



    if (vCentered) {

        winDef = winDef.concat('top=').concat((screen.height - vHeight) / 2).concat(',');

        winDef = winDef.concat('left=').concat((screen.width - vWidth) / 2);

    }

    else {

        winDef = winDef.concat('top=').concat(vTop).concat(',');

        winDef = winDef.concat('left=').concat(vLeft);

    }



    open(sLink, '_blank', winDef);



    if (typeof (vLink.href) != 'undefined') {

        return false;

    }

}

function share_govn() { u = location.href; window.open("http://my.goonline.vn/share.aspx?url=" + encodeURIComponent(u)); }

function share_twitter() { u = location.href; t = document.title; window.open("http://twitter.com/home?status=" + encodeURIComponent(u)); }

function share_facebook() { u = location.href; t = document.title; window.open("http://www.facebook.com/share.php?u=" + encodeURIComponent(u) + "&t=" + encodeURIComponent(t)); }

function share_google() { u = location.href; t = document.title; window.open("http://www.google.com/bookmarks/mark?op=edit&bkmk=" + encodeURIComponent(u) + "&title=" + t + "&annotation=" + t); }

function share_buzz() { u = location.href; t = document.title; window.open("http://buzz.yahoo.com/buzz?publisherurn=DanTri&targetUrl=" + encodeURIComponent(u)); }



function InputFocus(textdefault, control) {

    text = control.value;

    if (text == textdefault) control.value = "";

}

function InputBlur(textdefault, control) {

    text = control.value;

    if (text == "") control.value = textdefault;

}



function showhideComment() {

    $('#boxComment').toggle();

}



function clearit() {

    document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtTitle').value = "Tiêu 
Á";

    document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtName').value = "HÍ tên";

    document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtEmail').value = "Email";

    document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtAddress').value = "
Ëa chÉ";

    document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtPhone').value = "
iÇn tho¡i";

    document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtContent').value = "NÙi dung";

}



function validate() {

    var txt = document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtTitle');

    var i = 0;



    if (txt.value == '' || txt.value == 'Tiêu 
Á') {

        alert("B¡n ch°
a nh­p tiêu 
Á");

        return false;

    }



    txt = document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtName');

    if (txt.value == '' || txt.value == 'HÍ tên') {

        alert("B¡n ch°
a nh­p hÍ tên");

        return false;

    }



    txt = document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtEmail');

    if (txt.value != '' && txt.value != 'Email') {

        if (!echeck(txt.value)) {

            alert("Email b¡n nh­p ch°
a chính xác");

            return false;

        }

    }



    txt = document.getElementById('ctl00_ctl00_ContentPlaceHolder1_ContentPlaceHolder1_txtContent');

    if (txt.value == '' || txt.value == 'NÙi dung') {

        alert("B¡n ch°
a nh­p nÙi dung");

        return false;

    }

    return true;



}

function echeck(str) {



    var at = "@"

    var dot = "."

    var lat = str.indexOf(at)

    var lstr = str.length

    var ldot = str.indexOf(dot)

    if (str.indexOf(at) == -1) {

        //		   alert("Invalid E-mail ID")

        return false

    }



    if (str.indexOf(at) == -1 || str.indexOf(at) == 0 || str.indexOf(at) == lstr) {

        //		   alert("Invalid E-mail ID")

        return false

    }



    if (str.indexOf(dot) == -1 || str.indexOf(dot) == 0 || str.indexOf(dot) == lstr) {

        //		    alert("Invalid E-mail ID")

        return false

    }



    if (str.indexOf(at, (lat + 1)) != -1) {

        //		    alert("Invalid E-mail ID")

        return false

    }



    if (str.substring(lat - 1, lat) == dot || str.substring(lat + 1, lat + 2) == dot) {

        //		    alert("Invalid E-mail ID")

        return false

    }



    if (str.indexOf(dot, (lat + 2)) == -1) {

        //		    alert("Invalid E-mail ID")

        return false

    }



    if (str.indexOf(" ") != -1) {

        //		    alert("Invalid E-mail ID")

        return false

    }



    return true

}