weatherAPI codes in html coursework2

<body  onload="init()">
<div id="basicMap"></div>
</body>

<script src="http://openlayers.org/api/OpenLayers.js"></script>
<script src="http://openweathermap.org/js/OWM.OpenLayers.1.3.4.js" ></script>

<script type="text/javascript">
var map;
function init() {

	//Center  ( mercator coordinates )
	var lat = 7486473;
	var lon = 4193332;

// if  you use WGS 1984 coordinate you should  convert to mercator
//	lonlat.transform(
//		new OpenLayers.Projection("EPSG:4326"), // transform from WGS 1984
//		new OpenLayers.Projection("EPSG:900913") // to Spherical Mercator Projection
//	);

	var lonlat = new OpenLayers.LonLat(lon, lat);

        map = new OpenLayers.Map("basicMap");

	// Create overlays
	// map layer OSM
        var mapnik = new OpenLayers.Layer.OSM();
	// Create station layer
	var stations = new OpenLayers.Layer.Vector.OWMStations("Stations");
	// Create weather layer
	var city = new OpenLayers.Layer.Vector.OWMWeather("Weather");

	//connect layers to map
	map.addLayers([mapnik, stations, city]);

	// Add Layer switcher
	map.addControl(new OpenLayers.Control.LayerSwitcher());

	map.setCenter( lonlat, 10 );
}
</script>
var StyleMap = new OpenLayers.Style({
			fontColor: "black",
			fontSize: "12px",
			fontFamily: "Arial, Courier New",
			labelAlign: "lt",
			labelXOffset: "-15",
			labelYOffset: "-17",
			labelOutlineColor: "white",
			labelOutlineWidth: 3,
			externalGraphic: "${icon}",
			graphicWidth: 60,
                	label : "${myCustomLabel}"
			},
			{
			context:
			{
				icon:  function(feature) {
					return "http://openweathermap.org"+GetWeatherIcon(feature.attributes.station);
				},
			        myCustomLabel:  function(feature) {
				        return  Math.round(feature.attributes.station.main.temp-273.15) + 'c';
			        }
			}
			}

		));

	var stations = new OpenLayers.Layer.Vector.OWMWeather("Weather", { styleMap: StyleMap });