title: How to subscribe to "route" event using sammy.js?
body: <p>I use sammy.js for navigating and I have to handle an event which happens after changing a link. For example, a user clicks on "#/contact" link so, after successful navigation I want my event to be triggered. I've found "after" property and tried to insert this code:</p>
  
  <pre><code>this.after('#/contact', function () {
      //my code
  });
  </code></pre>
  
  <p>but it's not executing.
  What am I doing wrong?</p>
  
  <p>In fact, the problem has come from the following situation:</p>
  
  <p>I have a page with 2 tabs: Home and Contact. Contact contains google map.</p>
  
  <p>If a user, first, goes to Contact, google map is loaded properly but if a user comes to Home tab and then switch to Contact tab, google map is not loaded properly, I can see only a small piece of map in the top left corner.</p>
  
  <p>Any suggestions?</p>
  
  <p>Thank you in advance!</p>