function initialize() {
  
  var latlng_center = new google.maps.LatLng(45.5, 10);

    var myOptions = {scrollwheel: false,zoom: 7,maxZoom: 10,mapTypeId: google.maps.MapTypeId.TERRAIN};
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

    var stylerif = [{url: '/images/trkg.png',height: 36,width: 36,anchor: [7, 0],textSize: 16}, 
		    {url: '/images/trkv.png',height: 36,width: 36,anchor: [7, 0],textSize: 16}, 
		    {url: '/images/trkr.png',height: 36,width: 36,anchor: [7, 8],textSize: 16}];

    markerClusterer = new MarkerClusterer(map, [], {gridSize: 20,styles: stylerif});
   
    var OptionsBox = {
    disableAutoPan: false,
    maxWidth: 0,
    pixelOffset: new google.maps.Size(-125, -80),
    zIndex: null,
    closeBoxMargin: "-5px -5px 0px 0px",
    closeBoxURL: "/images/close3.png",
    infoBoxClearance: new google.maps.Size(1, 1),
    isHidden: false,
    pane: "floatPane",
    enableEventPropagation: true,
    };

    var randomPoint;
    var markers = [];
    var markerBounds = new google.maps.LatLngBounds();


    	var obj_ll = new google.maps.LatLng(46.463616,11.631723);
	var image_ACT = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_ACT = new google.maps.Marker({ position: obj_ll,  icon: image_ACT, title: ""});
 boxText_ACT ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/rifugi-del-catinaccio"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoACT.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_ACT, 'click', function() {
ib.setContent(boxText_ACT);
ib.open(map,marker_ACT);
});
markers.push(marker_ACT);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.446273,12.128316);
	var image_DU1 = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_DU1 = new google.maps.Marker({ position: obj_ll,  icon: image_DU1, title: ""});
 boxText_DU1 ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/dolomiti-unesco-sistema-1"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoDU1.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_DU1, 'click', function() {
ib.setContent(boxText_DU1);
ib.open(map,marker_DU1);
});
markers.push(marker_DU1);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.429521,11.856737);
	var image_DU2 = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_DU2 = new google.maps.Marker({ position: obj_ll,  icon: image_DU2, title: ""});
 boxText_DU2 ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/dolomiti-unesco-sistema-2"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoDU2.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_DU2, 'click', function() {
ib.setContent(boxText_DU2);
ib.open(map,marker_DU2);
});
markers.push(marker_DU2);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.288211,12.011283);
	var image_DU3 = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_DU3 = new google.maps.Marker({ position: obj_ll,  icon: image_DU3, title: ""});
 boxText_DU3 ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/dolomiti-unesco-sistema-3"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoDU3.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_DU3, 'click', function() {
ib.setContent(boxText_DU3);
ib.open(map,marker_DU3);
});
markers.push(marker_DU3);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.370501,12.463564);
	var image_DU4 = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_DU4 = new google.maps.Marker({ position: obj_ll,  icon: image_DU4, title: ""});
 boxText_DU4 ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/dolomiti-unesco-sistema-4"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoDU4.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_DU4, 'click', function() {
ib.setContent(boxText_DU4);
ib.open(map,marker_DU4);
});
markers.push(marker_DU4);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(45.128664,11.825083);
	var image_DU5 = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_DU5 = new google.maps.Marker({ position: obj_ll,  icon: image_DU5, title: ""});
 boxText_DU5 ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/dolomiti-unesco-sistema5"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoDU5.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_DU5, 'click', function() {
ib.setContent(boxText_DU5);
ib.open(map,marker_DU5);
});
markers.push(marker_DU5);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.601477,11.776517);
	var image_DU6 = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_DU6 = new google.maps.Marker({ position: obj_ll,  icon: image_DU6, title: ""});
 boxText_DU6 ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/dolomiti-unesco-sistema-6"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoDU6.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_DU6, 'click', function() {
ib.setContent(boxText_DU6);
ib.open(map,marker_DU6);
});
markers.push(marker_DU6);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.459272,11.615169);
	var image_DU7 = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_DU7 = new google.maps.Marker({ position: obj_ll,  icon: image_DU7, title: ""});
 boxText_DU7 ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/dolomiti-unesco-sistema-7"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoDU7.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_DU7, 'click', function() {
ib.setContent(boxText_DU7);
ib.open(map,marker_DU7);
});
markers.push(marker_DU7);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.164755,10.877623);
	var image_DU9 = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_DU9 = new google.maps.Marker({ position: obj_ll,  icon: image_DU9, title: ""});
 boxText_DU9 ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/dolomiti-unesco-sistema-9"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoDU9.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_DU9, 'click', function() {
ib.setContent(boxText_DU9);
ib.open(map,marker_DU9);
});
markers.push(marker_DU9);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.174872,8.267917);
	var image_RVD = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_RVD = new google.maps.Marker({ position: obj_ll,  icon: image_RVD, title: ""});
 boxText_RVD ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/val-d-ossola-e-val-grande"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoRVD.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_RVD, 'click', function() {
ib.setContent(boxText_RVD);
ib.open(map,marker_RVD);
});
markers.push(marker_RVD);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.575712,12.310582);
	var image_TCT = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_TCT = new google.maps.Marker({ position: obj_ll,  icon: image_TCT, title: ""});
 boxText_TCT ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/tre-cime-dolomiti"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoTCT.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_TCT, 'click', function() {
ib.setContent(boxText_TCT);
ib.open(map,marker_TCT);
});
markers.push(marker_TCT);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(45.054795,6.918042);
	var image_VDS = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_VDS = new google.maps.Marker({ position: obj_ll,  icon: image_VDS, title: ""});
 boxText_VDS ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/rifugi-val-di-susa"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoVDS.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_VDS, 'click', function() {
ib.setContent(boxText_VDS);
ib.open(map,marker_VDS);
});
markers.push(marker_VDS);
markerBounds.extend(obj_ll);
	var obj_ll = new google.maps.LatLng(46.300304,9.859183);
	var image_VEV = new google.maps.MarkerImage('/images/ain.png', new google.maps.Size(36, 36), new google.maps.Point(0,0), new google.maps.Point(18,18));
	var marker_VEV = new google.maps.Marker({ position: obj_ll,  icon: image_VEV, title: ""});
 boxText_VEV ='<a target="_blank" href="http://www.rifuginrete.com/areainteresse/rifugi-valtellina-valmalenco"><div class="boxmap"><div class="boxmaptitle"></div><div><img class="boxmapimg" src="/images/areainteresse/fotoVEV.jpg"></div></div></a>';var ib = new InfoBox(OptionsBox);	 google.maps.event.addListener(marker_VEV, 'click', function() {
ib.setContent(boxText_VEV);
ib.open(map,marker_VEV);
});
markers.push(marker_VEV);
markerBounds.extend(obj_ll);
  
    markerClusterer.addMarkers(markers);
    map.fitBounds(markerBounds);

}