title: Using Google Maps 3 API to get multiple routes on a Map
body: <p>I am working on a Vehicle Routing Problem. Recently I have spent a bit of time going through Google Maps API to see if I can print multiple routes on the same map.
  I would like the following: 
  route1: 
  point a, b, c, a 
  route 2 
  point a, d, e, f, a 
  route 3 
  point a, g, h, a 
  and I would like each route to have a different color polyline. 
  Can someone help me with this. </p>