 original coord.y

		R=(e.pageX/W * 999>>0)/999;

		r=(e.pageY/H * 999>>0)/999;

		U=e.pageX/H * 360 >>0;

		D=9;

		g = 360 * Math.PI / 180;

		T = setInterval(f = function (e) { // start looping spectrum

			c.save();

			c.globalCompositeOperation = "source-over"; // switch to additive color application

			if(e!=1) {

				c.fillStyle = "rgba(0,0,0,0.02)";

				c.fillRect(0, 0, W, H); // resize <canvas> and draw black rect (default)

			}

			c.restore();

			i = 25; while(i --) {

				c.beginPath();

		