minhna

(function(){
  var polyline = new google.maps.Polyline();
  
  google.maps.Polyline.prototype.closestDistanceToSegment = function(center, segment)
  {
    var firstPoint, lastPoint, A, B, C, D, E, distanceAB, t, projection = this.getMap().getProjection();
    
    // The other extreme of the path
    lastPoint  = segment[0];