// ==UserScript==
// @name            RSS Link for Nicovideo
// @description     Add link to RSS to search result on Nicovideo.
// @include         http://www.nicovideo.jp/search/*
// @include         http://www.nicovideo.jp/tag/*
// ==/UserScript==

(function() {
  // Indicate feed path
  var tmp = location.href;
  
  if (tmp.search("http://www.nicovideo.jp/search/") == 0){
    var p = tmp.replace("http://www.nicovideo.jp/search/", "Search.ashx?p=");
  } else{
    var p = tmp.replace("http://www.nicovideo.jp/tag/", "Tag.ashx?p=");
  }
  
  var feed_path= 'http://zio3.net/nicoRss/' + p;
  
  // Make meta link in <head>
  var mkLink = document.createElement('link');
  mkLink.rel = "alternate";
  mkLink.type = "application/rss+xml";
  mkLink.href = feed_path;
  document.getElementsByTagName('head')[0].appendChild(mkLink);
})();

