et from a parametric function with a fractal look

		function sumf(f, t, m) {
			var res = 0;
			for (var i = 1; i < m; ++i) {
				res += f(i * i * t) / (i * i);
			}
			return res;
		}

		var d1 = [];
		for (var t = 0; t <= 2 * Math.PI; t += 0.01) {
			d1.push([sumf(Math.cos, t, 10), sumf(Math.sin, t, 10)]);
		}

		var data = [ d1 ],
			placeholder = $("#placeholder");

		var plot = $.plot(placeholder, data, {
			series: {
				lines: {
					show: true
				},
				shadowSize: 0
			},
			xaxis: {
				zoomRang