GMaps.js Places layer

You can easily add or remove a layer using GMaps.js:

map.addLayer('places', {
          location : new google.maps.LatLng(-33.8665433,151.1956316),
          radius : 500,
          types : ['store'],
          search: function (results, status) {
            //do something with the result 

Note: There are 3 types of function to use: search(), textSearch() and nearbySearch(). On the Google Places page you can see the options to use per search function.