Cara menampilkan postingan blog dengan label tertentu

<script style="text/javascript">
var jumlahpostingan= 5;
var style= true;
</script>
<script type='text/javascript'>
function showrecentposts(json) {  
for (var i = 0; i < jumlahpostingan; i++) {    
var entry = json.feed.entry[i];    
var judul = entry.title.$t;    
if (i == json.feed.entry.lenvar link;gth)
break;    
for (var k = 0; k < entry.link.length; k++) {      
if (entry.link[k].rel == 'alternate') {      
link= entry.link[k].href;    break;
}}
judul = judul .link(link);  
if (style) document.write('<li>');  
document.write(judul);
}  
if (style) document.write('</li>');
}
</script>  
<ul>
<script src="/feeds/posts/default/-/nama-label-andaorderby=published&alt=json-in-script&callback=showrecentposts&max-results=500">
</script>
</ul>