title: Add info window to the destination marker from a route
body: <p>I want to add an info window to the final destination of a route. I searched the net but found that to add an info window I must create a new object.
  Note that I have a static starting point and the end point is dynamically taken it's latitude/longitude from database. So all I want to have is an info window with custom text appeared when the B icon, the end point is clicked.</p>
  
  <p>This example is pretty similar with my situation: <a href="http://jsfiddle.net/gHK7s/2/" rel="nofollow">http://jsfiddle.net/gHK7s/2/</a></p>
  
  <pre><code>var directionsDisplay = new google.maps.DirectionsRenderer({
      draggable: true
  });
  </code></pre>
  
  <p>Hope you guys can help me out with this.Thank you.</p>