function createMarker(point,description,letter,title,ancre) {
    opts = { 
      "icon": getIcon("googleMaps/images/bubble.png",61,46),
      "clickable": true,
      "title": title,
      "labelText": letter,
      "labelOffset": new GSize(-8, -33),
      "draggable" : false
    };

	var marker = new LabeledMarker(point, opts);
     /* Afficher le marqueur */
    map.addOverlay(marker);
    
    /* Associer une info-bulle au marqueur */
    GEvent.addListener(marker, "click", function() {
    	if(ancre) {
    		window.location.href= ancre;
    	}
    	if (description) this.openInfoWindowHtml(description);
    });
    return marker;
}


function getIcon(url, width, height) {
	icon = new GIcon(G_DEFAULT_ICON);
	icon.image = url;
	icon.iconSize = new GSize(width,height);
	icon.iconAnchor = new GPoint(width/2,height-8);
	var arrayMap = [0,0, 60, 0, 60,30, 0,30];
	icon.imageMap = arrayMap;
	icon.shadowSize =  new GSize(0,0);
	return icon;
}