title: how can i rotate a map marker if there is more than one marker on a lat/long
body: <p>I have a set of 4 marker points all with the exact same lat/long. (different offices within the same street address).</p>
  
  <p>I am using google maps api v3, and there are several instances when I have to plot multiple markers at the same lat/long (IE: different businesses, but in different suites within the same building).</p>
  
  <p>How can i go about rotating a custom marker icon for each of these in a N/S/E/W orientation. (North being the default for all markers when they are zoomed in beyond x zoom level.</p>
  
  <p>If needed i can post up the js for the map plotting.</p>