Add a google reader item to favorite when star it.

my_favorite_item.user.js

// ==UserScript==
// @name        favorite item
// @namespace   http://gmscrobber.whosemind.net
// @include     https://www.google.com/reader/view/*
// @version     0.0.1
// ==/UserScript==

document.body.addEventListener('click', function(e) {
  var target = e.target
    , container
    , title, url
    ;
  if(hasClass(target, 'star') && !hasClass(target, 'item-star')){//click the star
    container = target.parentNode.parentNode.lastChild;
    title = container.lastChild.firstChild.innerHTML;
    url = container.firstChild.href
    if(sidebar){//firefox
      sidebar.addPanel(title, url, '')
    }
  }
});

var rclass = /[\t\r\n]/g;
function hasClass(element, className) {
  return (' ' + element.className.replace(rclass, ' ') + ' ').indexOf(' ' + className + ' ') >= 0;
}