title: How to remove a layer in leaflet
body: <p>I am working on circleMarker on leaflet. A method which has latLng will be refreshed for each 5 seconds and new latLng will be returned. So when a method is loaded I need to remove previous layer and should show new points(layer) on a map.</p>
  
  <p>Here is sample code: <a href="http://jsfiddle.net/GZHJX/121/" rel="nofollow noreferrer">http://jsfiddle.net/GZHJX/121/</a></p>
  
  <p>I used <code>.removeLayer()</code>, but it's not working. How can I do it?</p>