martes, 2 de agosto de 2011

Entradas Relacionadas con imagen en miniatura

Este truco es muy util si queremos alargar la visita de nuestros lectores ya que le mostrara otros post de tu blog que tal vez le interesen,el truco aplicado se vera asi:

Pasos
1. Buscamos en la plantilla el codigo
 
</head>
 
2. Ya ubicado este codigo pegamos arriba de este lo siguiente 
 
<!-- Articulos relacionados con miniaturas -->
<b:if cond='data:blog.pageType == &quot;item&quot;'>
<style type='text/css'>

#related-posts {
float:center;
text-transform:none;
height:100%;
min-height:100%;
padding-top:5px;
padding-left:5px;
}

#related-posts h2{
font-size: 1.6em;
font-weight: bold;
color: black;
font-family: Georgia;
margin-bottom: 0.75em;
margin-top: 0em;
padding-top: 0em;
}
#related-posts a{
color:black;
}
#related-posts a:hover{
color:black;
}

#related-posts  a:hover {
background-color:#d4eaf2;
}

</style>

<script type='text/javascript'>
//<![CDATA[

//Script by Aneesh of www.bloggerplugins.org
//Released on August 19th August 2009
var relatedTitles = new Array();
var relatedTitlesNum = 0;
var relatedUrls = new Array();
var thumburl = new Array();
function related_results_labels_thumbs(json) {
for (var i = 0; i < json.feed.entry.length; i++) {
var entry = json.feed.entry[i];
relatedTitles[relatedTitlesNum] = entry.title.$t;
try
{thumburl[relatedTitlesNum]=entry.media$thumbnail.url;}


catch (error){
s=entry.content.$t;a=s.indexOf("<img");b=s.indexOf("src=\"",a);c=s.indexOf("\"",b+5);d=s.substr(b+5,c-b-5);if((a!=-1)&&(b!=-1)&&(c!=-1)&&(d!="")){
thumburl[relatedTitlesNum]=d;} else thumburl[relatedTitlesNum]='http://lh4.ggpht.com/_NNS6r_z4aeg/SuOQIOq8y3I/AAAAAAAAN_o/hD-YGKj_QFg/sinimagen.jpg';

}

if(relatedTitles[relatedTitlesNum].length>35) relatedTitles[relatedTitlesNum]=relatedTitles[relatedTitlesNum].substring(0, 35)+"...";
for (var k = 0; k < entry.link.length; k++) {
if (entry.link[k].rel == 'alternate') {
relatedUrls[relatedTitlesNum] = entry.link[k].href;
relatedTitlesNum++;


}
}
}
}
function removeRelatedDuplicates_thumbs() {
var tmp = new Array(0);
var tmp2 = new Array(0);
var tmp3 = new Array(0);
for(var i = 0; i < relatedUrls.length; i++) {
if(!contains_thumbs(tmp, relatedUrls[i]))
{
tmp.length += 1;
tmp[tmp.length - 1] = relatedUrls[i];
tmp2.length += 1;
tmp3.length += 1;
tmp2[tmp2.length - 1] = relatedTitles[i];
tmp3[tmp3.length - 1] = thumburl[i];
}
}
relatedTitles = tmp2;
relatedUrls = tmp;
thumburl=tmp3;


}

function contains_thumbs(a, e) {
for(var j = 0; j < a.length; j++) if (a[j]==e) return true;
return false;
}
function printRelatedLabels_thumbs() {
for(var i = 0; i < relatedUrls.length; i++)
{
if((relatedUrls[i]==currentposturl)||(!(relatedTitles[i])))
{
relatedUrls.splice(i,1);
relatedTitles.splice(i,1);
thumburl.splice(i,1);

}
}


var r = Math.floor((relatedTitles.length - 1) * Math.random());
var i = 0;

if(relatedTitles.length>0) document.write('<h2>'+relatedpoststitle+'</h2>');
document.write('<div style="clear: both;"/>');
while (i < relatedTitles.length && i < 20 && i<maxresults) {


document.write('<a style="text-decoration:none;padding:5px;float:left;');
if(i!=0) document.write('border-left:solid 0.5px #d4eaf2;"');
else document.write('"');
document.write(' href="' + relatedUrls[r] + '"><img style="width:72px;height:72px;border:0px;" src="'+thumburl[r]+'"/><br/><div style="width:72px;padding-left:3px;height:65px;border: 0pt none ; margin: 3px 0pt 0pt; padding: 0pt; font-style: normal; font-variant: normal; font-weight: normal; font-size: 12px; line-height: normal; font-size-adjust: none; font-stretch: normal;">'+relatedTitles[r]+'</div></a>');


if (r < relatedTitles.length - 1) {
r++;
} else {
r = 0;
}
i++;
}
document.write('</div>');

}

//]]>
</script></b:if>
<!-- fin artículos relacionados -->
 
3.  Luego buscamos este codigo
 
<div class='post-footer-line post-footer-line-1'>
 
4. Abajo de el codigo anterior pegamos lo siguiente
 
<!-- Articulos relacionados con miniaturas -->

<b:if cond='data:blog.pageType == &quot;item&quot;'>
<div id='related-posts'>
<b:loop values='data:post.labels' var='label'>
<b:if cond='data:label.isLast != &quot;true&quot;'>
</b:if>
<b:if cond='data:blog.pageType == &quot;item&quot;'>
<script expr:src='&quot;/feeds/posts/default/-/&quot; + data:label.name + &quot;?alt=json-in-script&amp;callback=related_results_labels_thumbs&amp;max-results=6&quot;' type='text/javascript'/></b:if></b:loop>
<script type='text/javascript'>
var currentposturl=&quot;<data:post.url/>&quot;;
var maxresults=4;
var relatedpoststitle=&quot;Post relacionados&quot;;
removeRelatedDuplicates_thumbs();
printRelatedLabels_thumbs();
</script>
</div><div style='clear:both'/>
</b:if>

<!-- Articulos relacionados con miniaturas -->
 
Por defecto el script solo te mostrara 4 entradas pero si quieres cambiarle el numero de entradas entonces al codigo var maxresults=4; le cambias el 4 por el numero que quieras ponerle.  

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