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    <p>SOLVED! Thank you Dimitar &amp; jerone.</p> <p>This maybe helps anyone in future. Final working code is like this:</p> <pre><code>var CircleOverlay = function(map, center, radius, options) { this.options = { numPoints: 50, drawOptions: { strokeColor: "#FF0000", strokeOpacity: 0.8, strokeWeight: 2, fillColor: "#FF0000", fillOpacity: 0.35 } }; // Extending with jQuery. So another ways possible this.options = $.extend(this.options, options || {}); google.maps.OverlayView.call(this); var q = 180 / 63781370 / Math.sin(90 - center.lat()) / Math.PI; this._map = map; this._point = center; this._radius = radius * q * 10; // convert meters to latlang degrees // Fit bounds of a circle that is drawn into the map var d2r = Math.PI / 180; this.circleLatLngs = new Array(); var circleLat = this._radius; var circleLng = circleLat / Math.cos(center.lat() * d2r); this.latlngbounds = new google.maps.LatLngBounds(); // 2PI = 360 degrees, +1 so that the end points meet for (var i = 0; i &lt; this.options.numPoints + 1; i++) { var theta = Math.PI * (i / (this.options.numPoints / 2)); var vertexLat = center.lat() + (circleLat * Math.sin(theta)); var vertexLng = parseFloat(center.lng()) + parseFloat((circleLng * Math.cos(theta))); var vertextLatLng = new google.maps.LatLng(vertexLat, vertexLng); this.circleLatLngs.push(vertextLatLng); this.latlngbounds.extend(vertextLatLng); } map.fitBounds(this.latlngbounds); this.setMap(map); this.onAdd = function() { var polyOptions = this.options.drawOptions; polyOptions.paths = this.circleLatLngs; this.polygon = new google.maps.Polygon(polyOptions); this.polygon.setMap(this.map); }; this.onRemove = function() { this.polygon.setMap(null); }; this.draw = function() { this.onRemove(); this.onAdd(); }; }; </code></pre> <p>Finally</p> <pre><code>CircleOverlay.prototype = google.maps.OverlayView.prototype; </code></pre>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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