function initMap(div_id, settings) {
    settings = jQuery.extend({
		controlSize: 'large'
	}, settings);
    var map = new GMap2(document.getElementById(div_id));
    if (settings.controlSize == 'large') {
        map.addControl(new GLargeMapControl());
    }
    else {
        map.addControl(new GSmallMapControl());
    }
    
    map.addControl(new GMapTypeControl());
    map.setCenter(new GLatLng(30.000654,-98.102074), 11);
    return map;
}

function mapOverlay(map, kml_file)
{
    var geox = new GGeoXml(kml_file);
    GEvent.addListener(geox, "load", function(){
        geox.gotoDefaultViewport(map);
        map.setCenter(geox.getDefaultCenter());
    });
    map.addOverlay(geox);
}

function plotPoint(gps, map) {
    point = getPoint(gps);
    map.setCenter(point, 15, G_NORMAL_MAP);
    map.addOverlay(new GMarker(map.getCenter()));
}

function getPoint(coords) {
    point = new GLatLng(coords[1], coords[0]);
    return point;
}

function createMarker(point, html, icon) {
    icon = icon || G_DEFAULT_ICON;
    var marker = new GMarker(point, icon);
    GEvent.addListener(marker, "click", function() {
        marker.openInfoWindowHtml(html);
    });
    return marker;
}

function plotMap(mapPoints, map) {
	var bounds = new GLatLngBounds();
	var display = false;
	$.each( mapPoints, function(i, o){
		if (o.gps) {
			display = true;
			point = getPoint(o.gps);
			var marker = createMarker(point, o.html);
			map.addOverlay(marker);
			bounds.extend(point);
		}
	});
	if (display) {
		map.setZoom(map.getBoundsZoomLevel(bounds));
		map.setCenter(bounds.getCenter());
	} else {
		//map.f obfuscated object containing map ID
		$(map.f).hide();
	}
}

function plotLandmarks(landmarks, map) {
    $.each(landmarks, function(i, l){
        var icon = new GIcon();
        icon.image = l.icon.icon;
	var iconSize = l.icon.icon_size.split(',');
        icon.iconSize = new GSize(iconSize[0], iconSize[1]);
        icon.shadow = l.icon.shadow;
	var shadowSize = l.icon.shadow_size.split(',');
        icon.shadowSize = new GSize(shadowSize[0], shadowSize[1]);
	var iconAnchor = l.icon.anchor.split(',');
        icon.iconAnchor = new GPoint(parseInt(iconAnchor[0]), parseInt(iconAnchor[1]));
        var windowAnchor = l.icon.window_anchor.split(',');
		icon.infoWindowAnchor = new GPoint(parseInt(windowAnchor[0]), parseInt(windowAnchor[1]));
        icon.transparent = l.icon.transparent;
        icon.imageMap = l.icon.image_map.split(',');
        var point = getPoint(l.gps);
        var marker = createMarker(point, l.html, icon);
        map.addOverlay(marker);
    });
}