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Đầu tiên, bạn đăng nhập vào blog, chọn thiết kế > Thêm tiện ích > thêm HTML/Javacript, sau đó dán toàn bộ các code này vào

<style>

.showpageArea {font-size: 16px; width:300px;background: url(http://thantoc.xm.com/hinh-anh/Pagenavbar-1.jpg) no-repeat left top; padding: 10px; color:#003366;text-align:center;

}

.showpageArea a {

color:#0F0;

text-decoration:underline;

}

.showpageNum a {

text-decoration:none;

color:#0F0; border:1px solid #FFF;

margin:0 10px;

padding:0 5px 0 8px;

}

.showpageNum a:hover {

color:#ffff00; border:1px solid #00ff00;

background-color:#FFF;

}

.showpagePoint {

color:#ffff00;

margin:0 8px 0 4px;

}

.showpage a {

text-decoration:none;

color:#FFF;

padding:0 2px 0 4px;

}

.showpage a:hover {

color:#ffff00;

text-decoration:underline;

} .showpageNum a:link,.showpage a:link {

text-decoration:none;

color:#00ff00;

}

</style>

<script type="text/javascript">

function showpageCount(json) {

var thisUrl = location.href;

var htmlMap = new Array();

var isFirstPage = thisUrl.substring(thisUrl.length-14,thisUrl.length)==".blogspot.com/";

var isLablePage = thisUrl.indexOf("/search/label/")!=-1;

var isPage = thisUrl.indexOf("/search?updated")!=-1;

var thisLable = isLablePage ? thisUrl.substr(thisUrl.indexOf("/search/label/")+14,thisUrl.length) : "";   

    thisLable = thisLable.indexOf("?")!=-1 ? thisLable.substr(0,thisLable.indexOf("?")) : thisLable;

var thisNum = 1;

var postNum=1;

var itemCount = 0;

var fFlag = 0;

var eFlag = 0;

var html= '';

var upPageHtml ='';

var downPageHtml ='';

var pageCount=5;

var displayPageNum=5;

var firstPageWord = 'Đầu';

var endPageWord = 'Cuối';

var upPageWord ='&#9668;';

var downPageWord ='&#9658;';

var labelHtml = '<span class="showpageNum"><a href="/search/label/'+thisLable+'?&max-results='+pageCount+'">';

for(var i=0, post; post = json.feed.entry[i]; i++) {

  var timestamp = post.published.$t.substr(0,10);

  var title = post.title.$t;

  if(isLablePage){

    if(title!=''){

        if(post.category){

      for(var c=0, post_category; post_category = post.category[c]; c++) {

        if(encodeURIComponent(post_category.term)==thisLable){                     

          if(itemCount==0 || (itemCount % pageCount ==(pageCount-1))){

            if(thisUrl.indexOf(timestamp)!=-1 ){

              thisNum = postNum;             

            }

            postNum++;

            htmlMap[htmlMap.length] = '/search/label/'+thisLable+'?updated-max='+timestamp+'T00%3A00%3A00%2B08%3A00&max-results='+pageCount;

          }                

        }     

      }

    }//end if(post.category){

     itemCount++;

   }

  }else{

    if(title!=''){

      if(itemCount==0 || (itemCount % pageCount ==(pageCount-1))){

        if(thisUrl.indexOf(timestamp)!=-1 ){

          thisNum = postNum;

        }

        if(title!='') postNum++;

        htmlMap[htmlMap.length] = '/search?updated-max='+timestamp+'T00%3A00%3A00%2B08%3A00&max-results='+pageCount;

      }     

    }

    itemCount++;

  }

}

for(var p =0;p< htmlMap.length;p++){

  if(p>=(thisNum-displayPageNum-1) && p<(thisNum+displayPageNum)){

    if(fFlag ==0 && p == thisNum-2){

      if(thisNum==2){

        if(isLablePage){

          upPageHtml = labelHtml + upPageWord +'</a></span>';         

        }else{

          upPageHtml = '<span class="showpage"><a href="/">'+ upPageWord +'</a></span>';

        }

      }else{

        upPageHtml = '<span class="showpage"><a href="'+htmlMap[p]+'">'+ upPageWord +'</a></span>';

      }

      fFlag++;

    }

    if(p==(thisNum-1)){

      html += '&nbsp;<span class="showpagePoint"><u>'+thisNum+'</u></span>';

    }else{

      if(p==0){

        if(isLablePage){

          html = labelHtml+'1</a></span>';

        }else{

          html += '<span class="showpageNum"><a href="/">1</a></span>';         

        }

      }else{

        html += '<span class="showpageNum"><a href="'+htmlMap[p]+'">'+ (p+1) +' </a></span>';

      }

    }

    if(eFlag ==0 && p == thisNum){

      downPageHtml = '<span class="showpage"> <a href="'+htmlMap[p]+'">'+ downPageWord +'</a></span>';

      eFlag++;

    }

  }//end  if(p>=(thisNum-displayPageNum-1) && p<(thisNum+displayPageNum)){

}//end for(var p =0;p< htmlMap.length;p++){

if(thisNum>1){

  if(!isLablePage){

      html = '<span class="showpage"><a href="/">'+ firstPageWord +' </a></span>'+upPageHtml+' '+html +' ';

  }else{

      html = ''+labelHtml + firstPageWord +' </a></span>'+upPageHtml+' '+html +' ';

  }

}

  html = '<div class="showpageArea"><span >Trang '+thisNum+' / '+(postNum-1)+': </span>'+html;

if(thisNum<(postNum-1)){

  html += downPageHtml;

  html += '<span class="showpage"><a href="'+htmlMap[htmlMap.length-1]+'"> '+endPageWord+'</a></span>';

}

if(postNum==1) postNum++;

  html += '</div>';

  if(isPage || isFirstPage || isLablePage){

    var pageArea = document.getElementsByName("pageArea");

    var blogPager = document.getElementById("blog-pager");

    if(postNum <= 2){

        html ='';

    }

    for(var p =0;p< pageArea.length;p++){

      pageArea[p].innerHTML = html;

    }

    if(pageArea&&pageArea.length>0){

      html ='';

    }

    if(blogPager){

      blogPager.innerHTML = html;

    }

  }

}

</script>

<script src="/feeds/posts/summary?alt=json-in-script&callback=showpageCount&max-results=99999" type="text/javascript"></script>

<style type=”text/css”>

.showpageArea {padding: 10px; color:#003366;text-align:left;width:530px;

}

.showpageArea a {

float:left;

text-align:center;

display:block;

margin:0 5px;

color:#333;

}

.showpageArea a:hover {

color:#333;

margin:0 5px;

}

.showpageNum a { background: url(‘http://i410.photobucket.com/albums/pp181/JohnSmithamazon/Blogger-Templates-Free-Designs-XML-Tutorial/page_num.gif’) no-repeat 0 0;

width:37px;

height:42px;

display:block;

text-align:center;

float:left;

margin:0 5px;

padding-top:6px;

text-decoration:none;

color:#333;

}

.showpageNum a:hover { background:url(‘http://i410.photobucket.com/albums/pp181/JohnSmithamazon/Blogger-Templates-Free-Designs-XML-Tutorial/page_num.gif‘) no-repeat 0 100%;

color:#FFF;

}

.showpagePoint {background:url(‘http://i410.photobucket.com/albums/pp181/JohnSmithamazon/Blogger-Templates-Free-Designs-XML-Tutorial/page_num.gif‘) no-repeat 0 100%;

width:37px;

height:42px;

display:block;

float:left;

text-align:center;

margin:0 5px;

padding-top:6px;

font-weight:bold;

color:#FFF;

}

.showpageNum a:link, .showpage a:link {

text-decoration:none;

color:#cc0000;

}

.showpageupPageWord a { float:left;

background:url(‘http://i410.photobucket.com/albums/pp181/JohnSmithamazon/Blogger-Templates-Free-Designs-XML-Tutorial/nextbutton.gif‘) no-repeat 0 0;

width:127px;

height:42px;

text-align:center;

font: bold 1.0em Arial,Helvetica,sans-serif;

display:block;

margin:0 5px;

padding-top:6px;

color:#333;

}

.showpageupPageWord a:hover { float:left;

background:url(‘http://i410.photobucket.com/albums/pp181/JohnSmithamazon/Blogger-Templates-Free-Designs-XML-Tutorial/provup.png‘) no-repeat 0 0;

width:127px;

height:42px;

text-align:center;

font: bold 1.0em Arial,Helvetica,sans-serif;

display:block;

margin:0 5px;

padding-top:6px;

color:#FFF;

}

.showpagedownPageWord a { float:left;

background:url(‘http://i410.photobucket.com/albums/pp181/JohnSmithamazon/Blogger-Templates-Free-Designs-XML-Tutorial/backbutton.gif‘) no-repeat 0 0;

width:127px;

height:42px;

text-align:center;

font: bold 1.0em Arial,Helvetica,sans-serif;

display:block;

margin:0 5px;

padding-top:6px;

color:#333;

}

.showpagedownPageWord a:hover { float:left;

background:url(‘http://i410.photobucket.com/albums/pp181/JohnSmithamazon/Blogger-Templates-Free-Designs-XML-Tutorial/nextup.png‘) no-repeat 0 0;

width:127px;

height:42px;

text-align:center;

font: bold 1.0em Arial,Helvetica,sans-serif;

display:block;

margin:0 5px;

padding-top:6px;

color:#FFF;

}

.pagenextprov {

text-align: center;

}

</style>

<div class='pagenextprov'>

<script type="text/javascript">

function showpageCount(json) {

var thisUrl = location.href;

var htmlMap = new Array();

var isFirstPage = thisUrl.substring(thisUrl.length-14,thisUrl.length)==".blogspot.com/";

var isLablePage = thisUrl.indexOf("/search/label/")!=-1;

var isPage = thisUrl.indexOf("/search?updated")!=-1;

var thisLable = isLablePage ? thisUrl.substr(thisUrl.indexOf("/search/label/")+14,thisUrl.length) : "";

thisLable = thisLable.indexOf("?")!=-1 ? thisLable.substr(0,thisLable.indexOf("?")) : thisLable;

var thisNum = 1;

var postNum=1;

var itemCount = 0;

var fFlag = 0;

var eFlag = 0;

var html= '';

var upPageHtml ='';

var downPageHtml ='';

var pageCount=5;

var displayPageNum=2;

var firstPageWord = 'First';

var endPageWord = 'last';

var upPageWord ='Back';

var downPageWord ='Next';

var labelHtml = '<span class="showpageNum"><a href="/search/label/'+thisLable+'?&amp;max-results='+pageCount+'">';

for(var i=0, post; post = json.feed.entry[i]; i++) {

var timestamp = post.published.$t.substr(0,10);

var title = post.title.$t;

if(isLablePage){

if(title!=''){

if(post.category){

for(var c=0, post_category; post_category = post.category[c]; c++) {

if(encodeURIComponent(post_category.term)==thisLable){

if(itemCount==0 || (itemCount % pageCount ==(pageCount-1))){

if(thisUrl.indexOf(timestamp)!=-1 ){

thisNum = postNum;

}

postNum++;

htmlMap[htmlMap.length] = '/search/label/'+thisLable+'?updated-max='+timestamp+'T00%3A00%3A00%2B08%3A00&amp;max-results='+pageCount;

}

}

}

}//end if(post.category){

itemCount++;

}

}else{

if(title!=''){

if(itemCount==0 || (itemCount % pageCount ==(pageCount-1))){

if(thisUrl.indexOf(timestamp)!=-1 ){

thisNum = postNum;

}

if(title!='') postNum++;

htmlMap[htmlMap.length] = '/search?updated-max='+timestamp+'T00%3A00%3A00%2B08%3A00&amp;max-results='+pageCount;

}

}

itemCount++;

}

}

for(var p =0;p< htmlMap.length;p++){

if(p>=(thisNum-displayPageNum-1) &amp;&amp; p<(thisNum+displayPageNum)){

if(fFlag ==0 &amp;&amp; p == thisNum-2){

if(thisNum==2){

if(isLablePage){

upPageHtml = labelHtml + upPageWord +'</a></span>';

}else{

upPageHtml = '<span class="showpageupPageWord"><a href="/">'+ upPageWord +'</a></span>';

}

}else{

upPageHtml = '<span class="showpageupPageWord"><a href="'+htmlMap[p]+'">'+ upPageWord +'</a></span>';

}

fFlag++;

}

if(p==(thisNum-1)){

html += ' <span class="showpagePoint"><u>'+thisNum+'</u></span>';

}else{

if(p==0){

if(isLablePage){

html = labelHtml+'1</a></span>';

}else{

html += '<span class="showpageNum"><a href="/">1</a></span>';

}

}else{

html += '<span class="showpageNum"><a href="'+htmlMap[p]+'">'+ (p+1) +' </a></span>';

}

}

if(eFlag ==0 &amp;&amp; p == thisNum){

downPageHtml = '<span class="showpagedownPageWord"> <a href="'+htmlMap[p]+'">'+ downPageWord +'</a></span>';

eFlag++;

}

}//end  if(p>=(thisNum-displayPageNum-1) &amp;&amp; p<(thisNum+displayPageNum)){

}//end for(var p =0;p< htmlMap.length;p++){

if(thisNum>1){

if(!isLablePage){

html = '<span class="showpage"></span>'+upPageHtml+' '+html +' ';

}

}

html = '<div class="showpageArea"><span  class="showpage"> Total '+(postNum-1)+': </span>'+html;

if(thisNum<(postNum-1)){

html += downPageHtml;

}

if(postNum==1) postNum++;

html += '</div>';

if(isPage || isFirstPage || isLablePage){

var pageArea = document.getElementsByName("pageArea");

var blogPager = document.getElementById("blog-pager");

if(postNum <= 2){

html ='';

}

for(var p =0;p< pageArea.length;p++){

pageArea[p].innerHTML = html;

}

if(pageArea&amp;&amp;pageArea.length>0){

html ='';

}

if(blogPager){

blogPager.innerHTML = html;

}

}

}

</script>

<script src="/feeds/posts/summary?alt=json-in-script&amp;callback=showpageCount&amp;max-results=99999" type="text/javascript"></script>

</div>

 Sau khi dán xong bạn lưu lại vào kéo tiện ích này nằm phía dưới bài đăng thì mới có hiệu lực.
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