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 showMap(postcode) {
	document.getElementById('map_canvas_container').style.display = "block";
	if (document.getElementById('property_large_img')) {
		document.getElementById('property_large_img').style.display = "none";
	}
	mapLoad(postcode);
}

function markerClick(marker, window_html, resultLat, resultLng) {
	clearTimeout(timer);
	marker.openInfoWindowHtml(window_html);
	var timer = setTimeout(function () {
		var newLat = parseFloat(resultLat) + 0.2;
		map.panTo(new GLatLng(newLat,resultLng));
	}, 500);
}

function addPoint(lat, lng, linkID, window_html) {
	var point = new GLatLng(lat,lng);
	var marker = new GMarker(point);
	GEvent.addListener(marker, "click", function(){markerClick(marker, window_html, lat, lng)});
	$(linkID).click(function(){markerClick(marker, window_html, lat, lng)});
	$(linkID).css({cursor:"pointer"});
	map.addOverlay(marker);
}

function usePointFromPostcode(postcode) {
	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);
				//alert(resultLat + "~" + resultLng);
				setCenterToPoint(point);
				placeMarkerAtPoint(point)
			}else{
				//alert("Postcode not found!");
			}
		}
	);	
	localSearch.execute(postcode + ", UK");
}

function placeMarkerAtPoint(point) {
	var marker = new GMarker(point,icon);
	map.addOverlay(marker);
}

function setCenterToPoint(point) {
	map.setCenter(point, 15);
}

function mapLoad(postcode) {
	if (GBrowserIsCompatible()) {
		var mapCanvas = document.getElementById("map_canvas");
		if (mapCanvas) {
			map = new GMap2(document.getElementById("map_canvas"));
			map.addControl(new GLargeMapControl());
			map.addControl(new GMapTypeControl());
			if (postcode != "") {
				usePointFromPostcode(postcode);
			} else {
				map.setCenter(new GLatLng(52.13180209119313, 1.2908935546875), 9);
			}
			//usePointFromPostcode(map, postcode, setCenterToPoint);
		}
    }
}

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();
		}
	}
}

addUnLoadEvent(GUnload);