var map;

var localSearch = new GlocalSearch();

var icon = new GIcon();

icon.image = "http://www.google.com/mapfiles/marker.png";

icon.shadow = "http://www.google.com/mapfiles/shadow50.png";

icon.iconSize = new GSize(20, 34);

icon.shadowSize = new GSize(37, 34);

icon.iconAnchor = new GPoint(10, 34);

function usePointFromPostcode(postcode, callbackFunction) 
{
	localSearch.setSearchCompleteCallback(null, 

		function() 
		{
			if (localSearch.results[0])
			{		
				var resultLat = localSearch.results[0].lat;

				var resultLng = localSearch.results[0].lng;

				var point = new GLatLng(resultLat,resultLng);

				callbackFunction(point);

			}else{

				alert("Postcode not found!");

			}

		});	

	localSearch.execute(postcode + ", UK");

}

function placeMarkerAndCentre(point)
{
    placeMarkerAtPoint(point);
    setCenterToPoint(point);
}

function placeMarkerAtPoint(point)
{
	var marker = new GMarker(point,icon);

	map.addOverlay(marker);
}

function setCenterToPoint(point)
{
	map.setCenter(point, 17);
}

function showPointLatLng(point)
{
	alert("Latitude: " + point.lat() + "\nLongitude: " + point.lng());
}

function mapLoad() 
{
	if (GBrowserIsCompatible()) {

        try
	    {

		map = new GMap2(document.getElementById("map"));

		map.addControl(new GLargeMapControl());

		map.addControl(new GMapTypeControl());

		map.setCenter(new GLatLng(54.622978,-2.592773), 5, G_NORMAL_MAP);
    	}
	    catch(e) {};

	}

}

function addLoadEvent(func) {

  var oldonload = window.onload;

  if (typeof window.onload != 'function') {

    window.onload = func;

  } else {

    window.onload = function() {

      oldonload();

      func();

    }

  }

}

function addUnLoadEvent(func) {

	var oldonunload = window.onunload;

	if (typeof window.onunload != 'function') {

	  window.onunload = func;

	} else {

	  window.onunload = function() {

	    oldonunload();

	    func();

	  }

	}

}

addLoadEvent(mapLoad);

addUnLoadEvent(GUnload);