function CH1903toWGS84(y, x) {	var x = (x - 200000) / 1000000;	var y = (y - 600000) / 1000000;	var lambda = 2.6779094 + (4.728982 * y) + (0.791484 * y * x) + (0.1306 * y * x * x) - (0.0436 * y * y * y);	var phi = 16.9023892 + (3.238272 * x) - (0.270978 * y * y) - (0.002528 * x * x) - (0.0447 * y * y * x) - (0.0140 * x * x * x);	return {		lng : lambda * 100 / 36, 		lat : phi * 100 / 36	};}function WGS84toCH1903(lat, lng) {	var latsexa = lat * 3600;	var lngsexa = lng * 3600;	var phi = (latsexa - 169028.66) / 10000;	var lambda = (lngsexa - 26782.5) / 10000;	var yy = 600072.37 + (211455.93 * lambda) - (10938.51 * lambda * phi) - (0.36 * lambda * phi * phi) - (44.54 * lambda * lambda * lambda);	var xx = 200147.07 + (308807.95 * phi) + (3745.25 * lambda * lambda) + (76.63 * phi * phi) - (194.56 * lambda * lambda * phi) + (119.79 * phi * phi * phi);	return {		y : Math.round(yy), 		x : Math.round(xx)	};}