title: Backbone.js change url without reloading the page
body: <p>I have a site that has a user page. On that page, there are several links that let you explore the user's profile. I'd like to make it so that, when one of those links is clicked on, the url changes, but the top third of the page containing the user's banner doesn't reload. </p>
  
  <p>I'm using Backbone.js</p>
  
  <p>I have a feeling that I'm in one of those situation where I have such a poor understanding of the problem I'm dealing with that I'm asking the wrong question, so please let me know if that appears to be the case</p>