Feeds Finder

({
  getFeedURL: function(e, doc){
    var j = e;
    var c = doc.location;
    if (e.indexOf("/") !=0 ) {
      var d = c.pathname.split("/");
      d[d.length-1] = e;
      j = d.join("/")
    }
    return c.protocol + "//" + c.hostname + j;
  },
 
  isFeedBurner: function(u) {
    return u.indexOf("http://feeds.feedburner.com/") == 0;
  },
 
  setFeedURL: function(u) {
    return this.isFeedBurner(u)
           ? u
           : "http://www.google.com/reader/view/feed/" + encodeURIComponent(u);
  },
 
  checkForFeeds: function() {
    var f = false, s = "", n = 0;
    var m = document.getElementsByTagName("link");
    for (var g = 0, a; a = m[g]; g++) {
      var h = a.getAttribute("type");
      var i = a.getAttribute("rel");
      if ((h && h.match(/[\+\/]xml$/)) && (i && (i == "alternate"))) {
        var b = a.getAttribute("href");
        var t = a.getAttribute("title");
        if (b.indexOf("http") != 0) {
          b = this.getFeedURL(b, document);
        }
        s += "<li><a href=" + this.setFeedURL(b) + ">" + (t ? t : b) + "</a></li>";
        f = true;
        n = n + 1;
      }
    }
    if (!f) {
      alert("Can\"t find any feeds.");
    } else if (n == 1) {
      window.open(this.setFeedURL(b), "_blank");
    } else {
      var w = window.open();
      w.document.open();
      w.document.write("<h1>" + "Found " + n + " feeds</h1><ol>");
      w.document.write(s + "</ol>");
      w.document.close();
    }
  }
}).checkForFeeds()