function RaphaelCircle(options) {

    /**
     * autor: CTAPbIu_MABP
     * email: ctapbiumabp@gmail.com
     * site: http://mabp.kiev.ua/2010/08/22/google-maps-v3-and-raphael/
     * license: GPL
     * last update: 22.08.2010
     * version: 0.1
     */

	this.options = options;
	this.setMap(options.map);
}

RaphaelCircle.prototype = new google.maps.OverlayView();

RaphaelCircle.prototype.onAdd = function() {
	this.div = document.createElement('DIV');
	this.div.style.border = '0px solid';
	this.div.style.position = 'absolute';
	this.div.style.overflow = 'visible';
	
	this.getPanes().overlayImage.appendChild(this.div);
	this.canvas = Raphael(this.div);
};

RaphaelCircle.prototype.draw = function() {

	var radius = (1<<this.getMap().getZoom()) * this.options.radius,
		center = this.getProjection().fromLatLngToDivPixel(this.options.position);
	this.div.style.left = center.x - radius / 2 + 'px';
	this.div.style.top = center.y - radius / 2 + 'px';
	this.div.style.width = radius + 'px';
	this.div.style.height = radius + 'px';
	this.canvas.setSize(radius, radius);
	if (this.circle) {
		this.circle.remove();
	}
	this.circle = this.canvas.circle(radius / 2, radius / 2, radius / 2)
	this.circle.attr({stroke: '#fff', "stroke-width":2, fill: '#000', "fill-opacity": 0.3});

};

RaphaelCircle.prototype.onRemove = function() {
	this.circle.remove();
	this.div.parentNode.removeChild(this.div);
};