var CircleOverlay = function(latLng, radius, strokeColor, strokeWidth, strokeOpacity, fillColor, fillOpacity) {
	this.latLng = latLng;
	this.radius = radius;
	this.strokeColor = strokeColor;
	this.strokeWidth = strokeWidth;
	this.strokeOpacity = strokeOpacity;
	this.fillColor = fillColor;
	this.fillOpacity = fillOpacity;
}


CircleOverlay.prototype = GOverlay;

CircleOverlay.prototype.initialize = function(map) {
	this.map = map;
}

CircleOverlay.prototype.clear = function() {
	if(this.polygon != null && this.map != null) {
		this.map.removeOverlay(this.polygon);
	}
}


CircleOverlay.prototype.redraw = function(force) {
	var d2r = Math.PI / 180;
	circleLatLngs = new Array();
	var circleLat = this.radius * 0.014483;
	var circleLng = circleLat / Math.cos(this.latLng.lat() * d2r);
	var numPoints = 40;


	for (var i = 0; i < numPoints + 1; i++) {
		var theta = Math.PI * (i / (numPoints / 2));
		var vertexLat = this.latLng.lat() + (circleLat * Math.sin(theta));
		var vertexLng = this.latLng.lng() + (circleLng * Math.cos(theta));
		var vertextLatLng = new GLatLng(vertexLat, vertexLng);
		circleLatLngs.push(vertextLatLng);
	}

	this.clear();
	this.polygon = new GPolygon(circleLatLngs, this.strokeColor, this.strokeWidth, this.strokeOpacity, this.fillColor, this.fillOpacity);
	this.map.addOverlay(this.polygon);
}

CircleOverlay.prototype.remove = function() {
	this.clear();
}

CircleOverlay.prototype.containsLatLng = function(latLng) {

	if(this.polygon.containsLatLng) {
		return this.polygon.containsLatLng(latLng);
	}
}

CircleOverlay.prototype.setRadius = function(radius) {
	this.radius = radius;
}

CircleOverlay.prototype.setLatLng = function(latLng) {
	this.latLng = latLng;
}