var defaultIconSize = 24;
var displayedMarkers = [];
var mapTextElements = [];

var ge;
var kmlProgress = null;
function getEarthInstanceCB(object)
{
ge = object;
return true;
}

function googleMarker(imgPath, color, point, label)
{
if (color == 'null')
	return point;

var icon = new GIcon();
icon.image = '/' + imgPath + '/maps/point_' + color + '.png';
icon.shadow = '/' + imgPath + '/maps/shadow.png';
icon.iconSize = new GSize(12, 20);
icon.shadowSize = new GSize(22, 20);
icon.iconAnchor = new GPoint(6, 20);
icon.infoWindowAnchor = new GPoint(5, 1);
var marker = new GMarker(point, icon);
if (label != null)
	GEvent.addListener(marker, 'click', function() { marker.openInfoWindowHtml(label); });
	
return marker;
}

function googleIconMarker(palCode, iconCode, point, label)
{
var imgBase = null; var icon = new GIcon();
if (palCode > 0)
	imgBase = 'http://maps.google.com/mapfiles/kml/pal' + palCode + '/icon' + iconCode;
else
	imgBase = '/' + document.imgPath + '/maps/pal' + palCode + '/icon' + iconCode;

icon.image = imgBase + '.png';
icon.shadow = imgBase + 's.png';
icon.iconSize = new GSize(defaultIconSize, defaultIconSize);
icon.shadowSize = new GSize(defaultIconSize * (59 / 32), defaultIconSize);
icon.iconAnchor = new GPoint(defaultIconSize / 2, defaultIconSize / 2);
icon.infoWindowAnchor = new GPoint(defaultIconSize * 0.75, defaultIconSize * 0.25);
var marker = new GMarker(point, icon);
if (label != null)
	GEvent.addListener(marker, 'click', function() { marker.openInfoWindowHtml(label); });

return marker;
}

function addMarkers(map, arrayName)
{
// Get the map data
var markers = eval(arrayName);
if (!markers) return false;

// Add the map data, either an array or a single element
if (isNaN(markers.length))
	map.addOverlay(markers);
else if (markers.length > 0) {
	for (var x = 0; x < markers.length; x++)
		map.addOverlay(markers[x]);
}

displayedMarkers[arrayName] = true;
return true;
}

function removeMarkers(map, arrayName)
{
// Get the map data
var markers = eval(arrayName);
if (!markers) return false;

// Remove the map data, either an array or a single element
if (isNaN(markers.length))
	map.removeOverlay(markers);
else if (markers.length > 0) {
	for (x = 0; x < markers.length; x++)
		map.removeOverlay(markers[x]);
}
	
displayedMarkers[arrayName] = false;
return true;
}

function getDefaultZoom(distance)
{
if (distance > 6100)
	return 2;
else if (distance > 2900)
	return 3;
else if (distance > 1600)
	return 4;
else if (distance > 780)
	return 5;
else if (distance > 390)
	return 6;
else if (distance > 195)
	return 7;
else if (distance > 90)
	return 8;
else if (distance > 50)
	return 9;

return 10;
}

function toggleMarkers(map, arrayName, check)
{
// Figure out if we add or remove the markers
var isToggled = !check.checked;
if (isToggled)
	removeMarkers(map, arrayName);
else
	addMarkers(map, arrayName);

return true;
}

function updateMapText()
{
var newColor = this.getCurrentMapType().getTextColor();
for (var x = 0; x < mapTextElements.length; x++) {
	var el = mapTextElements[x];
	el.style.color = newColor;
}

return true;
}

function circle(ctr, radius)
{
if (radius == 0) return null;
var p = map.getCurrentMapType().getProjection();
var l2 = new GLatLng(ctr.getLatLng().lat() + (radius / 69.16), ctr.getLatLng().lng());
var centerPt = p.fromLatLngToPixel(ctr.getLatLng(), map.getZoom()); 
var radiusPt = p.fromLatLngToPixel(l2, map.getZoom());

//Build the circle
var pts = [];
var radius = Math.floor(Math.sqrt(Math.pow((centerPt.x-radiusPt.x),2) + Math.pow((centerPt.y-radiusPt.y),2))); 
for (var a = 0 ; a < 361 ; a+=5) {
    var aRad = (Math.PI / 180) * a;
    var y = centerPt.y + radius * Math.sin(aRad);
    var x = centerPt.x + radius * Math.cos(aRad);
    pts.push(p.fromPixelToLatLng(new GPoint(x,y), map.getZoom()));
} 

return pts;
}