a.js

var d=document;
var el=d.getElementsByTagName('link');
var g=false;
var j=false;
for(i=0;i<el.length;i++){
  if(el[i].getAttribute('rel').indexOf('alternate')!=-1){
    ty=el[i].getAttribute('type');
    if(ty.indexOf('application/rss+xml')!=-1||ty.indexOf('text/xml')!=-1){
      g=true;
      h=el[i].getAttribute('href');
      var k=h.substring(0,1);
      if(k=='/'){
        h='http://'+location.host+h;
      }break;
    }
  }
}
if(g){
  window.open('http://cloud.feedly.com/v3/feeds/feed'+encodeURIComponent('/' h));
  return;
}
if(!g){
  for(i=0;i<el.length;i++){
    if(el[i].getAttribute('rel').indexOf('alternate')!=-1){
      ty=el[i].getAttribute('type');
      if(ty.indexOf('application/atom+xml')!=-1){
        j=true;
        h=el[i].getAttribute('href');
        var l=h.substring(0,1);
        if(l=='/'){
          h='http://'+location.host+h;
        }
        break;
      }
    }
  }
  if(j){
    window.open('http://cloud.feedly.com/v3/feeds/feed'+encodeURIComponent('/' h));
    return;
  }
  if(!j){
    window.alert('Could not find the RSS/Atom Feed');
  }
}