Related Posts by Category in Blogger.com

Another great hack for blogger.com is to dynamically create at the end of every post a "Related Posts" section like the one on display here. The goal is to have your visitors stick around longer and take more of an interest in your blog.
It's very easy to do, but as with every modification to the template be very carefull.
Go to the Layout Tab and clic on Edit HTML. Then look for this code:

<data:post.body/>

Then immediately after that place this code:

<b:if cond='data:blog.pageType == "item"'>
<div class='similiar'>
<!-- ***http://hoctro.blogspot.com***Jan,2007**** -->
<!-- ***Related Articles by Labels - Take Two*** -->
<!--

Modified by JackBook.Com to make it easier to use.
1. Now, users don't need to change anything to use this widget. just copy and paste, and done!
2. The current article will also be listed, now it's no more.

-->
<div class='widget-content'>
<h3>Related Posts by Categories</h3>
<div id='data2007'/><br/><br/>
<div id='hoctro'>

Widget by <u><a href='http://admin-seo.blogspot.com'>Hoctro</a></u> | <u><a href='http://www.jackbook.com/' title='Related Posts on Blogger Modified by JackBook.Com. Read More?'>Jack Book</a>. Brought to you by <a href="http://admin-seo.blogspot.com%22%3eblogger/ SEO</a>.</u>

</div>
<script type='text/javascript'>
var homeUrl3 = &quot;<data:blog.homepageUrl/>&quot;;
var maxNumberOfPostsPerLabel = 4;
var maxNumberOfLabels = 10;
maxNumberOfPostsPerLabel = 100;
maxNumberOfLabels = 3;

function listEntries10(json) {
var ul = document.createElement(&#39;ul&#39;);
var maxPosts = (json.feed.entry.length &lt;= maxNumberOfPostsPerLabel) ?
json.feed.entry.length : maxNumberOfPostsPerLabel;
for (var i = 0; i &lt; maxPosts; i++) {
var entry = json.feed.entry[i];
var alturl;
for (var k = 0; k &lt; entry.link.length; k++) {
if (entry.link[k].rel == &#39;alternate&#39;) {
alturl = entry.link[k].href;
break;
}
}
var li = document.createElement(&#39;li&#39;);
var a = document.createElement(&#39;a&#39;);
a.href = alturl;
if(a.href!=location.href) {
var txt = document.createTextNode(entry.title.$t);
a.appendChild(txt);
li.appendChild(a);
ul.appendChild(li);
}
}
for (var l = 0; l &lt; json.feed.link.length; l++) {
if (json.feed.link[l].rel == &#39;alternate&#39;) {
var raw = json.feed.link[l].href;
var label = raw.substr(homeUrl3.length+13);
var k;
for (k=0; k&lt;20; k++) label = label.replace(&quot;%20&quot;, &quot; &quot;);
var txt = document.createTextNode(label);
var h = document.createElement(&#39;b&#39;);
h.appendChild(txt);
var div1 = document.createElement(&#39;div&#39;);
div1.appendChild(h);
div1.appendChild(ul);
document.getElementById(&#39;data2007&#39;).appendChild(div1);
}
}
}
function search10(query, label) {
var script = document.createElement(&#39;script&#39;);
script.setAttribute(&#39;src&#39;, query + &#39;feeds/posts/default/-/&#39;
+ label +
&#39;?alt=json-in-script&amp;callback=listEntries10&#39;);
script.setAttribute(&#39;type&#39;, &#39;text/javascript&#39;);
document.documentElement.firstChild.appendChild(script);
}
var labelArray = new Array();
var numLabel = 0;
<b:loop values='data:posts' var='post'>
<b:loop values='data:post.labels' var='label'>
textLabel = &quot;<data:label.name/>&quot;;
var test = 0;
for (var i = 0; i &lt; labelArray.length; i++)
if (labelArray[i] == textLabel) test = 1;
if (test == 0) {
labelArray.push(textLabel);
var maxLabels = (labelArray.length &lt;= maxNumberOfLabels) ?
labelArray.length : maxNumberOfLabels;
if (numLabel &lt; maxLabels) {
search10(homeUrl3, textLabel);
numLabel++;
}
}
</b:loop>
</b:loop>
</script>
</div>
</div>
</b:if>