title: How to find location along a route with Google Maps?
body: <p>I've been able to use the DirectionServices portion of the Google Maps API to find a route between two addresses. Given the starting address and a distance (e.g. 5 miles), I'd like to plot the resulting point (e.g. 5 miles along the route) on the map.</p>
  
  <p>Does anybody know how to accomplish this?</p>