var MeOnTheMap = function(options){
    
    this.options = {
        address    : "",
        container  : "",
        defaultUI  : true,
        noDragging : false,
        html       : "",
        zoomLevel  : 16,
        view       : 0,
        myicon     : false
    };
    
    this.preloads = [];

    this.initialize = function(options) {

        for (var opt in options){
            this.options[opt] = options[opt];
        }

        this.preparePreloading();

        this.container = document.getElementById(this.options.container);
        if (!this.container) {
            alert("Could not locate \"" + this.options.container + "\"");
            return;
        }

        this.findLocation();
    };
    
    this.preparePreloading = function(){
        var regxp = new RegExp('(src)=("[^"]*")','g');
        var sources = this.options.html.match(regxp);

        if (!sources)
            return;

        function getHandler(obj) {
            return function(){
                var el = document.getElementById(obj.id);
                if (el){
                    el.parentNode.replaceChild(this, el);
                    obj.marker.tooltip.redraw(true);
                }
            };
        };
    
        for (var i = 0; i < sources.length; i++){
            this.options.html = this.options.html.replace(sources[i],"style=\"visibility:visible\" id=\"preloadimg" + i + "\" src=\"\"");

            var src = sources[0].split("=\"")[1];
            src = src.substring(0,src.length - 1);

            var img = new Image();

            this.preloads.push({
                element: img,
                src: src,
                id: "preloadimg" + i
            });

            img.onload = getHandler(this.preloads[this.preloads.length - 1]);
        }
    };
    
    this.startPreloading = function(marker, map){
        for (var i = 0; i < this.preloads.length; i++) {
            this.preloads[i].marker = marker;
            this.preloads[i].map    = map;
            this.preloads[i].element.src = this.preloads[i].src;
        }
    };
    
    this.findLocation = function() {
        var _this = this;
        this.geoLocator = new GClientGeocoder(); 
        this.geoLocator.getLatLng(this.options.address, function(response){
            _this.handleGetLocatorResponse(response);
        }); 
    };
    
    this.getIcon = function() {
        var icon        = new GIcon(G_DEFAULT_ICON);
        icon.image      = (this.options.icon) ? this.options.icon : "icon.png"; 
        //icon.shadow     = "shadow.png";
        icon.iconSize   = new GSize(150, 70);
        //icon.shadowSize = new GSize(52, 35);
        icon.iconAnchor = new GPoint(17, 35);
        return icon;
    };
    
    this.handleGetLocatorResponse = function(response){
        this.geoLocator = null;
        
        if(!response) {
            alert("Could not resolve this addess \"" + this.options.address + "\"");
            return;
        }

        var type = "";
        switch (this.options.view) {
            case 1  : type = G_SATELLITE_MAP; break;
            case 2  : type = G_HYBRID_MAP; break;
            default : type = G_NORMAL_MAP; break;
        }
    
        this.map = new GMap2(this.container);
        this.map.setMapType(type);
        this.map.setCenter(response, this.options.zoomLevel);
        this.map.disableScrollWheelZoom();
        
        if (this.options.noDragging)
            this.map.disableDragging();

        if (this.options.defaultUI)
            this.map.setUIToDefault();

        this.marker = new GMarker(response,{icon: this.getIcon()});
        this.map.addOverlay(this.marker);

        if (!this.options.html || this.options.html == "")
            return;

        this.marker.tooltip = new Tooltip(this.marker, this.options.html);
        this.map.addOverlay(this.marker.tooltip);
        this.marker.tooltip.show();

        if (this.newCenter) {
            var markerPos = this.map.fromLatLngToDivPixel(this.marker.getPoint());
            var pos = this.map.fromContainerPixelToLatLng({
                x: markerPos.x + this.newCenter.x,
                y: markerPos.y + this.newCenter.y
            });
            this.map.setCenter(pos);
        }
        
        this.startPreloading(this.marker, this.map);
    };

    this.adjustMapCenter = function(position){
        if (!this.geoLocator && this.map){
            var markerPos = this.map.fromLatLngToDivPixel(this.marker.getPoint());
            var pos = this.map.fromContainerPixelToLatLng({
                x: markerPos.x + position.x,
                y: markerPos.y + position.y
            });
            this.map.setCenter(pos);
        } else {
            this.newCenter = position;
        }
    };
    
    this.initialize(options);
};