javascript google maps remove icon

I am attempting to remove the custom icons from the google map and reset the map to the default zoom and lat lng.

here is my function:

function clearLocations() {
 infoWindow.close();
 for (var i = 0; i < markers.length; i++) {
   markers[i].setMap(null);
 }
 markers.length = 0; 
 sidebar.innerHTML = "";
 map.setCenter(new google.maps.LatLng(36.1611, -116.4775), 6);
}

the map will reset to the default latlng, zoom level stays the same, and the sidebar htmk us removed. however the icons stay on the map开发者_运维技巧. not undestanding why this is ocurring. many thanks, --matt

EDIT -- my apologies for not including the markers

function createMarker(latlng, name, address, city, state, zipcode, telephone, images, url) { 
  var html = "<div>stuff here</div>";
  var marker = new google.maps.Marker({
    icon: icon, 
    map: map, 
    position: latlng 
  });

  google.maps.event.addListener(marker, 'click', function() {
    infoWindow.setContent(html);
    infoWindow.open(map, marker);
  });
  return marker;
}

You need to put your makers in the markers array which is later cleared by the loop in clearLocations(). markers array should be global

     //global variable
        var markers = [];
        function createMarker(latlng, name, address, city, state, zipcode, telephone, images, url) { 
          var html = "<div>stuff here</div>";
          var marker = new google.maps.Marker({
            icon: icon, 
            map: map, 
            position: latlng 
          });
//add current marker to markers array
        markers.push(marker);

          google.maps.event.addListener(marker, 'click', function() {
            infoWindow.setContent(html);
            infoWindow.open(map, marker);
          });
          return marker;
        }