Google Api Nearby Places on change of type, layer removed, but advertising stays, how can I remove the complete layer without reloading the page - google-maps

Question

I have custom code to create a nearby search of places on google map.
Each search type creates a new layer, removed when selecting a different search type, my problem is, even thought he layer is removed, here in Thailand we have "Google partners advertising" show dependant on the search type and this "Layer" doesnt get removed, but added to when creating a new search layer.
This is the code I use to create the search (in part):
Creating a layer (Google):
<div id="map_layers_google">
<input type="checkbox" name="map_google" id="map_google_restaurant" class="box" onclick="Propertywise.Maps.getDataWithinBounds('google_restaurant');" value="google_restaurant">
</div>
getDataWithinBounds: function(layer_name, except_this_area) {
if (!Propertywise.Design.is_ie8_or_less) {
this.layers_on_map[layer_name] = true;
this.getEntitiesWithinBounds(layer_name);
}
getEntitiesWithinBounds: function(entity_name) {
var $this = this;
if (!this.getBounds()) {
setTimeout(function() {
$this.getEntitiesWithinBounds(entity_name);
}, 20);
} else {
var layer_name, category;
var $this_input_el = jQuery("#map_" + entity_name);
jQuery("#map_updating").fadeIn('fast');
if (entity_name.indexOf('google') != -1) {
layer_name = "google";
category = entity_name.replace("google_", "");
} else if (entity_name.indexOf('school') != -1) {
layer_name = "schools";
category = entity_name.replace("schools_", "");
} else if (entity_name.indexOf('events') != -1) {
layer_name = "events";
category = entity_name.replace("events_", "");
} else {
layer_name = "transport";
this.toggleTransitLayer();
}
jQuery("#map_layers_" + layer_name + " input").each(function(index, value) {
var el_id = jQuery(this).attr("id");
var el_entity_name = el_id.replace("map_", "");
Propertywise.Maps.layers_on_map[el_entity_name] = false;
if (jQuery(this).is(":checked") && el_entity_name != entity_name) {
jQuery(this).attr("checked", false);
}
if (jQuery(this).is(":checked") && el_entity_name == entity_name) {
Propertywise.Maps.layers_on_map[entity_name] = true;
}
});
if (jQuery("#map_" + entity_name).is(':checked') || Propertywise.this_page == "school") {
if (layer_name == "google") {
infoWindow = new google.maps.InfoWindow();
Propertywise.Maps.removeMarkers(layer_name);
var request = {
bounds: Propertywise.Maps.map.getBounds(),
types: [category]
};
service = new google.maps.places.PlacesService(Propertywise.Maps.map);
service.radarSearch(request, function(results, status) {
jQuery("#map_updating").fadeOut('fast');
if (status != google.maps.places.PlacesServiceStatus.OK) {
return;
}
for (var i = 0, result; result = results[i]; i++) {
Propertywise.Maps.createMarker(result.geometry.location.lat(), result.geometry.location.lng(), {
place: result,
type: category
});
}
});
}
} else {
this.removeMarkers(layer_name);
jQuery("#map_updating").fadeOut('fast');
}
}
}
And this is the setup and remove each layer:
setUpLayers: function() {
var $this = this;
jQuery.each(this.layers, function(layer_name, value) {
Propertywise.Ajax.requests[layer_name] = [];
$this.layers[layer_name] = [];
});
},
removeMarkers: function(layer_name) {
if (Propertywise.Maps.map) {
var layer = this.layers[layer_name];
for (var i = 0; i < layer.length; i++) {
layer[i].setMap(null);
}
layer = [];
}
}
Here is link to screen shot of the problem.
screenshot
Question is, can anyone help with either changing the above to remove the complete layer(not just marker layer) or advise how to remove the advertising.. I understand this is part of terms of Google to display, but its unprofessional and looks terrible.
Best
Malisa