Geolocation

// CLASS
var Geolocation = Class.extend({
	init : function(options){
		var on = {
			success : options.success||function(){},
			error : options.error||function(){},
			set : options.set||{}
		};
 
		navigator.geolocation.watchPosition(on.success, on.error, on.set);
	}
});
 
 
// USE
var geolocation = new Geolocation({
	set : {
		enableHighAccuracy : true,
		maximumAge : 8000 // 8 sec.
	},
 
	success : function(geo){
		var coords = geo.coords;
		var nd = "brak informacji";
 
		get("geo_latitude", coords.latitude||nd);
		get("geo_longitude", coords.longitude||nd);
		get("geo_speed", coords.speed||nd);
		get("geo_altitude", coords.altitudeAccuracy||nd);
		get("geo_timestamp", geo.timestamp||nd);
	},
 
	error : function(error){
		switch(error.code){
			case error.PERMISSION_DENIED:
				alert("user did not share geolocation data");
				break;
 
			case error.POSITION_UNAVAILABLE:
				alert("could not detect current position");
				break;
 
			case error.TIMEOUT:
				alert("retrieving position timedout");
				break;
 
			default:
				alert("unknown error");
		}
	}
});