# Pastebin 0OmlExlw
var page_entry=document.querySelector(".postpage .entry-content");

if (page_entry && !page_entry.querySelector(".postpromonav")) {
  var postpromonav = document.createElement("aside");
  postpromonav.classList.add("postpromonav");
  postpromonav.style.textAlign="left";
  if ("XMLHttpRequest" in window) {
    var xmlhttp=xmlhttp=new XMLHttpRequest();
    xmlhttp.open("GET","/index.atom", false);
    xmlhttp.send();
    xmlDoc=xmlhttp.responseXML;
    var entries=xmlDoc.getElementsByTagName("entry");
    entries=Array.prototype.slice.call(entries, 0).slice(0, 3);
    var list=document.createElement("ul");
    list.classList.add("feed-post-promo");
    list.style.listStyle="none";
    list.style.padding="0";
    for(entry in entries) {
      var entry=entries[entry],
          title=entry.getElementsByTagName("title")[0].childNodes[0].nodeValue,
           link=entry.getElementsByTagName("link")[0].getAttribute("href");
      link=link.replace("utm_campaign=atom_feed", "utm_campaign=sidebar");
      var item=document.createElement("li"),
       linkElm=document.createElement("a"),
      linkText=document.createTextNode(title);
      linkElm.href=link;
      linkElm.appendChild(linkText);
      item.appendChild(linkElm);
      list.appendChild(item);
    }
    postpromonav.appendChild(list);
    page_entry.parentElement.insertBefore(postpromonav, page_entry.nextSibling);
  }
}