Hello if I may ask you to review my javascript project. The full context and all details are available from [my app][1] or [my repository][2]:


    var geocoder;
    var map;
    var infowindow = new google.maps.InfoWindow();
    var marker;
    
    function initialize() {
        document.upload.lat.value = geoip_latitude();
        document.upload.lng.value = geoip_longitude();
        geocoder = new google.maps.Geocoder();
        var latlng = new google.maps.LatLng(geoip_latitude(), geoip_longitude());
        var myOptions = {
                zoom: 8,
                center: latlng,
                mapTypeId: 'roadmap'
            }
            map = new google.maps.Map(document.getElementById("gmap"), myOptions);
        //var ctaLayer = new google.maps.KmlLayer('http://www.koolbusiness.com/list.kml');
        //ctaLayer.setMap(map);
        google.maps.event.addListener(map, "click", gAdd);
    
        geocoder.geocode({
            'latLng': latlng
        }, function (results, status) {
            if (status == google.maps.GeocoderStatus.OK) {
                document.getElementById("message").innerHTML = results[5].formatted_address;
                document.upload.place.value = results[5].formatted_address;
            } else {
    
            }
        });
    
        if (navigator.geolocation) {
    
            browserSupportFlag = true;
            navigator.geolocation.getCurrentPosition(function (position) {
                initialLocation = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
    
                var latlng = initialLocation
                    geocoder.geocode({
                        'latLng': latlng
                    }, function (results, status) {
                        if (status == google.maps.GeocoderStatus.OK) {
                            if (results[1]) {
                                marker = new google.maps.Marker({
                                    position: latlng,
                                    map: map
                                });
                                infowindow.setContent('<a href="/li?lat=' + latlng.lat() + '&lon=' + latlng.lng() + '">' + results[1].formatted_address + '</a>');
                                infowindow.open(map, marker);
                                document.upload.lat.value = latlng.lat();
                                document.upload.lng.value = latlng.lng();
                                document.upload.place.value = results[5].formatted_address
    
                            } else {
                                alert("No results found");
                            }
                        } else {
                            alert("Geocoder failed due to: " + status);
                        }
                    });
    
            }, function () {
                handleNoGeolocation(browserSupportFlag);
            });
        } else if (google.gears) {
            // Try Google Gears Geolocation
            browserSupportFlag = true;
            var geo = google.gears.factory.create('beta.geolocation');
            geo.getCurrentPosition(function (position) {
                initialLocation = new google.maps.LatLng(position.latitude, position.longitude);
                var latlng = initialLocation
                    geocoder.geocode({
                        'latLng': latlng
                    }, function (results, status) {
                        if (status == google.maps.GeocoderStatus.OK) {
                            if (results[1]) {
                                marker = new google.maps.Marker({
                                    position: latlng,
                                    map: map
                                });
                                infowindow.setContent('<a href="/li?lat=' + latlng.lat() + '&lon=' + latlng.lng() + '">' + results[1].formatted_address + '</a>');
                                infowindow.open(map, marker);
                                document.upload.lat.value = latlng.lat();
                                document.upload.lng.value = latlng.lng();;
                                document.upload.place.value = results[5].formatted_address;
    
                            } else {
                                alert("No results found");
                            }
                        } else {
                            alert("Geocoder failed due to: " + status);
                        }
                    });
    
            }, function () {
                handleNoGeolocation(browserSupportFlag);
            });
        } else {
            // Browser doesn't support Geolocation
            browserSupportFlag = false;
            handleNoGeolocation(browserSupportFlag);
        }
    
    }
    
    function gAdd(ev) {
        marker.setMap(null)
        var latlng = new google.maps.LatLng(ev.latLng.lat(), ev.latLng.lng());
    
        geocoder.geocode({
            'latLng': latlng
        }, function (results, status) {
    
            if (status == google.maps.GeocoderStatus.OK) {
                document.getElementById("message").innerHTML = results[1].formatted_address;
                document.upload.place.value = results[5].formatted_address
                document.upload.lat.value = latlng.lat();
                document.upload.lng.value = latlng.lng();
                marker = new google.maps.Marker({
                    position: latlng,
                    draggable: true,
                    animation: google.maps.Animation.DROP,
                    map: map
                });
                google.maps.event.addListener(marker, 'click', toggleBounce);
                infowindow.setContent('<a href="/li?lat=' + latlng.lat() + '&lon=' + latlng.lng() + '">' + results[1].formatted_address + '</a>');
                infowindow.open(map, marker);
    
            } else {
    
            }
        });
    
    }
    
    function toggleBounce() {
        if (marker.getAnimation() != null) {
            alert("test");
            marker.setAnimation(null);
    
        } else {
            marker.setAnimation(google.maps.Animation.BOUNCE);
    
        }
    }
![enter image description here][3]


  [1]: http://www.koolbusiness.com/ai
  [2]: http://montao.googlecode.com
  [3]: https://i.sstatic.net/6RrLQ.png