function map(cent_lat, cent_lng, marker_lat, marker_lng) {
   
	var Latlng = new google.maps.LatLng(cent_lat, cent_lng);
	var MarkerLatlng = new google.maps.LatLng(marker_lat, marker_lng);	
	var MarkerIcon = new google.maps.MarkerImage(
			"/template/img/marker.png",
			new google.maps.Size(49, 65), /* dimensioni dell'img */
			new google.maps.Point(0,0),	  /* l'origine dell'img � 0,0 */
			new google.maps.Point(49, 65) /* l'ancora per l'img � 49,65 */
		);
	
	if(marker_lat == undefined && marker_lng == undefined){
		MarkerLatlng = Latlng;
	}
    
	var Options = {
		zoom:16,
		center: Latlng,
		navigationControl: true,
		mapTypeControl: false,
		mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU,position: google.maps.ControlPosition.TOP_RIGHT},
		navigationControlOptions: {style: google.maps.NavigationControlStyle.DEFAULTS,position: google.maps.ControlPosition.TOP_LEFT},
		mapTypeId: google.maps.MapTypeId.ROADMAP
    }

    var map = new google.maps.Map(document.getElementById("map_canvas"), Options);
    makeMarker(MarkerLatlng, MarkerIcon);
	
	function makeMarker(point,icona){
		var spriteMarker = new google.maps.Marker({
			map: map,
			position: point,
			icon: icona
		});
	
		var infowindow = new google.maps.InfoWindow({
			content: "<h1>Galleria Don Chisciotte</h1><br />VIA ANGELO BRUNETTI, 21 a/b - 00186, ROMA"
		});		
		google.maps.event.addListener(spriteMarker, 'click', function(){
			infowindow.open(map,spriteMarker);
			});
		infowindow.open(map,spriteMarker);
	}
}