function load() {

// A TextualZoomControl is a GControl that displays textual "Zoom In"
// and "Zoom Out" buttons (as opposed to the iconic buttons used in
// Google Maps).
function TextualZoomControl() {
}
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 zoomInDiv = document.createElement("div");
	this.setButtonStyle_(zoomInDiv);
	container.appendChild(zoomInDiv);
	zoomInDiv.appendChild(document.createTextNode("Zoom In"));
	GEvent.addDomListener(zoomInDiv, "click", function() {
	map.zoomIn();
	});

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

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

// By default, the control will appear in the top left corner of the
// map with 0 pixels of padding.
TextualZoomControl.prototype.getDefaultPosition = function() {
	return new GControlPosition(G_ANCHOR_TOP_LEFT, new GSize(0,0));
}

// Sets the proper CSS for the given button element.
TextualZoomControl.prototype.setButtonStyle_ = function(button) {
	button.style.textDecoration = "none";
	button.style.color = "#00a";
	button.style.backgroundColor = "#f6f6f6";
	button.style.font = "13px Verdana, Arial, Helvetica, sans-serif";
	button.style.border = "1px solid #ddd";
	button.style.padding = "4px";
	button.style.marginBottom = "1px";
	button.style.textAlign = "center";
	button.style.width = "82px";
	button.style.cursor = "pointer";
}

if (GBrowserIsCompatible()) {
	var map = new GMap2(document.getElementById("map"));
	map.addControl(new TextualZoomControl());
	map.setCenter(new GLatLng(49.694342, 12.172304), 14);
	var marker = new GMarker(new GLatLng(49.694342, 12.172304));
	map.addOverlay(marker);
	}
}