function showOnePointOnMap(nameDiv,lat,lng){
	if (GBrowserIsCompatible()){
		var map = new GMap2(document.getElementById(nameDiv));
		var mapControl=new GLargeMapControl();
		var typeControl=new GMapTypeControl();
		var scaleControl = new GScaleControl();
		map.addControl(mapControl);
		map.addControl(typeControl);
		map.addControl(scaleControl);
		var point = new GLatLng( lat,lng);
		map.setCenter(point, 13);
		var icon = new GIcon(G_DEFAULT_ICON);
		icon.image = "http://www.numabilis.com/files/demos/google-maps/blue-dot.png"; 
		var options = { icon: icon}; 
		var marker = new GMarker(point, options); 
		map.addOverlay(marker);
		var geocoder = new GClientGeocoder();
	}
	else{
		alert("Votre navigateur n'est pas compatible pour afficher la carte convenablement.");
	}
}