為 Blogger 加上 "上一頁" 的元素

Blogger.com 的服務內建沒有沒有分頁功能，即是 "上一頁" 、 "下一頁" 和共有多少頁的功能，雖然如此，仍然可以自行將這個簡單功能加上去，而且做法十分簡單，只要在 Blogger 後台的 "版面配置" 中加入一個 HTML/JavaScript 小工具和一段代碼即可，完成後就可像下圖般:

 做法先到後台的版面配置中加入一個 HTML/JavaScript 小工具，建議小工具不要加入 "標題" 欄位，並將下列代碼貼上到小工具的內容中:

 

<style>

.showpageArea {padding: 0 2px;margin-top:10px;margin-bottom:10px;
}
.showpageArea a {border: 1px solid #505050;
color: #000000;font-weight:normal;
padding: 3px 6px !important;
padding: 1px 4px ;margin:0px 4px;
text-decoration: none;
}
.showpageArea a:hover {
font-size:11px;
border: 1px solid #333;
color: #000000;
background-color: #FFFFFF;
}

.showpageNum a {border: 1px solid #505050;
color: #000000;font-weight:normal;
padding: 3px 6px !important;
padding: 1px 4px ;margin:0px 4px;
text-decoration: none;

}
.showpageNum a:hover {
font-size:11px;
border: 1px solid #333;
color: #000000;
background-color: #FFFFFF;

}
.showpagePoint {font-size:11px;
padding: 2px 4px 2px 4px;
margin: 2px;
font-weight: bold;
border: 1px solid #333;
color: #fff;
background-color: #000000;


}

.showpage a:hover {font-size:11px;
border: 1px solid #333;
color: #000000;
background-color: #FFFFFF;

}
.showpageNum a:link,.showpage a:link {
font-size:11px;
padding: 2px 4px 2px 4px;
margin: 2px;
text-decoration: none;
border: 1px solid #0066cc;
color: #0066cc;
background-color: #FFFFFF;}

.showpageNum a:hover {font-size:11px;
border: 1px solid #333;
color: #000000;
background-color: #FFFFFF;
}
</style>
</div>



<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=3;
var firstPageWord = '最前';
var endPageWord = '最後';
var upPageWord ='前一頁';
var downPageWord ='後一頁';



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="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 &amp;&amp; p == thisNum){
downPageHtml = '<span class="showpage"> <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"><a href="/">'+ firstPageWord +' </a></span>'+upPageHtml+' '+html +' ';
}else{
html = ''+labelHtml + firstPageWord +' </a></span>'+upPageHtml+' '+html +' ';
}
}

html = '<div class="showpageArea">





<span style="padding: 2px 4px 2px 4px;margin: 2px 2px 2px 2px;border: 1px solid #333; background-" class="showpage">共'+(postNum-1)+'頁: </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&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 style="display: none; font-size: 10px; margin-top: 15px; text-align: right;">
</div>

之後再將這個小工具拖到 "網誌文章" 的下方:

就這樣子已經完成了這個分頁功能了，最後記得 "儲存" 版面吧。