title: backbone Finding the current page
body: <p>Is there a built in call to find out the current page, in a bootstrap environment.. I am trying to hide some of the links depending on the page i am on. 
  we have a router as follows;</p>
  
  <pre><code>var AppRouter = Backbone.Router.extend({
      routes : {
          // Define some URL routes
          'login' : 'showLogin',
          'main' : 'showMain',
          'faq' : 'showFaq
  }
  </code></pre>