function categoryMap(){ var latlng = new google.maps.LatLng(44.0687592,9.9662592); var myOptions = { zoom: 8, center: latlng, // scrollwheel: false, mapTypeControlOptions: { style: google.maps.MapTypeControlStyle.DROPDOWN_MENU }, zoomControl: true, zoomControlOptions: { style: google.maps.ZoomControlStyle.LARGE }, mapTypeId: google.maps.MapTypeId.ROADMAP }; var map = new google.maps.Map(document.getElementById("categorymap"), myOptions); var infowindow = new google.maps.InfoWindow(); var markers = []; var mcOptions = { maxZoom: 15, styles: [{ url: '../images/cluster1.png', height: 22, width: 22, textColor: '#ffffff', textSize: 11 },{ url: '../images/cluster2.png', height: 26, width: 26, textColor: '#ffffff', textSize: 13 },{ url: '../images/cluster3.png', height: 30, width: 30, textColor: '#ffffff', textSize: 15 }] }; var mc = new MarkerClusterer(map, markers,mcOptions); }; window.onload = categoryMap;