For that I am searching for a script then random post with thumbnail, and finally found a fairly simple and easy to understand. Then I modif bit to get only the thumbnailnya alone. Actually, random post is somewhat different to the popular post that can display posts Randam post more than 10 pieces, but in the picture above I accidentally just penampilkan post 9 pieces so it looks the same as the popular post yesterday.
With Random post like this, at least, can beautify your blog especially blog-type gallery
For those of you who like only displays thumbnail images or just at random post please follow the steps below.
1. First Step
Please copy the CSS code below and save it in the above code ]]></b:skin> or </style> The HTML edit page
#random-posts{width:100%;background:none;}
#random-posts ul {margin: 0 !important; padding: 0 !important; }
#random-posts ul li {background:none ;list-style-type: none;margin:0;padding:0 !important}
#random-posts li{float:left;list-style:none;}
#random-posts img{float:left;margin-right:5px;margin-bottom:5px;border:none;width:90px;height:90px;transition:all 400ms ease-in-out;}
#random-posts img:hover {opacity:.7}2. Step Two
Please login to layout and add gadget HTML / JavaScript then input the script below.
<div id="random-posts">
<ul>
<script type='text/javaScript'>
var rdp_numposts=9;
var rdp_snippet_length=0;
var rdp_info='no';
var rdp_comment='Comment';
var rdp_disable='';
var rdp_current=[];var rdp_total_posts=0;var rdp_current=new Array(rdp_numposts);function totalposts(json){rdp_total_posts=json.feed.openSearch$totalResults.$t}document.write('<script type=\"text/javascript\" src=\"/feeds/posts/default?alt=json-in-script&max-results=0&callback=totalposts\"><\/script>');function getvalue(){for(var i=0;i<rdp_numposts;i++){var found=false;var rndValue=get_random();for(var j=0;j<rdp_current.length;j++){if(rdp_current[j]==rndValue){found=true;break}};if(found){i--}else{rdp_current[i]=rndValue}}};function get_random(){var ranNum=1+Math.round(Math.random()*(rdp_total_posts-1));return ranNum};
</script>
<script type='text/javaScript'>
function random_posts(json){a=location.href;y=a.indexOf('?m=0');for(var i=0;i<rdp_numposts;i++){var entry=json.feed.entry[i];var rdp_posttitle=entry.title.$t;if('content'in entry){var rdp_get_snippet=entry.content.$t}else{if('summary'in entry){var rdp_get_snippet=entry.summary.$t}else{var rdp_get_snippet="";}};rdp_get_snippet=rdp_get_snippet.replace(/<[^>]*>/g,"");if(rdp_get_snippet.length<rdp_snippet_length){var rdp_snippet=rdp_get_snippet}else{rdp_get_snippet=rdp_get_snippet.substring(0,rdp_snippet_length);var space=rdp_get_snippet.lastIndexOf(" ");rdp_snippet=rdp_get_snippet.substring(0,space)+"…";};for(var j=0;j<entry.link.length;j++){if('thr$total'in entry){var rdp_commentsNum=entry.thr$total.$t+' '+rdp_comment}else{rdp_commentsNum=rdp_disable};if(entry.link[j].rel=='alternate'){var rdp_posturl=entry.link[j].href;if(y!=-1){rdp_posturl=rdp_posturl+'?m=0'}var rdp_postdate=entry.published.$t;if('media$thumbnail'in entry){var rdp_thumb=entry.media$thumbnail.url}else{rdp_thumb="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhr29D_fyvSBZU-NO5BvjEI5KM8QAM85s2ptxz-kSXMYocNFm3c0sVnXQ3hMeELd6TEQKurj7h8IEqu8BigRDR7-sDhsgNWwKQGl7qiSz5-bAC_MkiwnWqJEMgOb-ts_e98CygSfB3RzahX/"}}};document.write('<li>');document.write('<a href="'+rdp_posturl+'" rel="nofollow" title="'+rdp_posttitle+'"><img alt="'+rdp_posttitle+'" src="'+rdp_thumb+'" title="'+rdp_posttitle+'" height="90" width="90"/></a>');if(rdp_info=='yes'){document.write('<span>'+rdp_postdate.substring(8,10)+'/'+rdp_postdate.substring(5,7)+'/'+rdp_postdate.substring(0,4)+' - '+rdp_commentsNum)+'</span>'}document.write('<div style="clear:both"></div></li>')}};getvalue();for(var i=0;i<rdp_numposts;i++){document.write('<script type=\"text/javascript\" src=\"/feeds/posts/default?alt=json-in-script&start-index='+rdp_current[i]+'&max-results=1&callback=random_posts\"><\/script>')};
</script>
</ul>
</div>To set the number of posts displayed var rdp_numposts=9; please set the code and to adjust the picture size please adjust the number 90 in red on the same CSS code javascriptnya code. And after I check this widget HTML5 and CSS3 valid also does not reduce the SEO score Chkme and image dimention in GTMetrix.
Good luck and see the results