Google AJAX API Loader troubles with GControl

[whisher]

Hi.

I've troubles using Google AJAX API Loader.
With the code below I've no trouble with the old
http://maps.google.com/maps?file=api so I don't see
my mistake.
I get an parse error with
TextualZoomControl.prototype = new GControl()
error
GControl is not defined

<script type="text/javascript" src="http://www.google.com/jsapi?
key=ABQIAAAAzr2EBOXUKnm_jVnk0YughuyMxQ-i1QfUnH94QxWIa6N4U6MouMmBA"></
script>

<script type="text/javascript">

var map = null;
var geocoder = null;
function initialize() {
    if (GBrowserIsCompatible()) {
        map = new GMap2(document.getElementById("map-dove-siamo"));
        map.addControl(new TextualZoomControl());
        geocoder = new GClientGeocoder();
        showAddress('Bracelli, Beverino SP, Italy');
    }
}
function showAddress(address) {
    if (geocoder) {
        geocoder.getLatLng(
          address,
          function(point) {
            if (!point) {
              alert(address + " not found");
            } else {
              map.setCenter(point, 13);
              var marker = new GMarker(point);
              map.addOverlay(marker);
              var tooltip = '<div class="map-tooltip"><strong>Bracelli
19020 Beverino SP</strong></div><div class="map-tooltip"><a
href="http://maps.google.it/maps?
f=q&source=s_q&hl=it&geocode=&q=Bracelli&sll=41.442726,12.392578&sspn=14.252027,28.300781&ie=UTF8&ll=44.208788,9.758606&spn=0.402608,1.40625&z=10&iwloc=addr">Come
arrivare da noi</a></div>';
              GEvent.addListener(marker, 'click', function() {
                marker.openInfoWindowHtml(tooltip);
                });
              GEvent.addListener(marker, 'infowindowclose', function()
{
          map.recenterOrPanToLatLng(center, 2);
              });
             marker.openInfoWindowHtml(tooltip);
            }
          }
        );
      }
    }
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////

 google.load("maps", "2");

///////////////////////////////////////////////////////////////////////////////////////////////////////////////
// A TextualZoomControl is a GControl that displays textual "Zoom In"
// and "Zoom Out" buttons (as opposed to the iconic buttons used in
// Google Maps).

// We define the function first
function TextualZoomControl() {
}

// To "subclass" the GControl, we set the prototype object to
// an instance of the GControl object

/////////////////////////////////////////////////////////////////////////////////////////////

TextualZoomControl.prototype = new GControl();

///////////////////////////////////////////////////////////////////////////////////////////

// Creates a one DIV for each of the buttons and places them in a
container
// DIV which is returned as our control element. We add the control to
// to the map container and return the element for the map class to
// position properly.
TextualZoomControl.prototype.initialize = function(map) {
    var container = document.createElement("div");

    var zoomOutDiv = document.createElement("div");
    this.setButtonStyle_(zoomOutDiv);
    container.appendChild(zoomOutDiv);
    zoomOutDiv.appendChild(document.createTextNode("Zoom avanti"));
    GEvent.addDomListener(zoomOutDiv, "click", function() {
        map.zoomOut();
    });

    var zoomInDiv = document.createElement("div");
    this.setButtonStyle_(zoomInDiv);
    container.appendChild(zoomInDiv);
    zoomInDiv.appendChild(document.createTextNode("Zoom indietro"));
    GEvent.addDomListener(zoomInDiv, "click", function() {
        map.zoomIn();
    });

    map.getContainer().appendChild(container);
      return container;
}

// By default, the control will appear in the top left corner of the
// map with 7 pixels of padding.
TextualZoomControl.prototype.getDefaultPosition = function() {
  return new GControlPosition(G_ANCHOR_TOP_LEFT, new GSize(7, 7));
}

// Sets the proper CSS for the given button element.
TextualZoomControl.prototype.setButtonStyle_ = function(button) {
  button.style.textDecoration = "underline";
  button.style.color = "#5C2E0D";
  button.style.backgroundColor = "#E2D0BE";
   button.style.borderLeft= "1px solid #5C2E0D";
  button.style.font = "bold Arial";
  button.style.padding = "2px";
  button.style.marginBottom = "3px";
  button.style.textAlign = "center";
  button.style.width = "6em";
  button.style.cursor = "pointer";
}
/////////////////////////////////////////////////////////////////////////////////////////////
google.setOnLoadCallback(initialize)

IMHO with google.load("maps", "2")
the maps library should be available in the
page, shouldn't it ?


Can you help me, please ?


Thanks in advance.


Bye




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