How to zoom map...

Question

var i,j;

var icon = "Markers/letter_m.png";

//var icon = "Markers/letter_m.png";

var bounds = new google.maps.LatLngBounds();

for (i = 0; i < v.length; i++) {

var loc = v[i];

var reg = arraylorry[i];

var spdval = spdarr[i];

var t_disval = t_dis[i];

var up_dateval = up_date[i];

var statusval = statusval1[i];

//console.log(data);

// for (var j = 0; j < v.length; j++) {

var content = "<div class='map_marker'><div style=font-weight:bold;><span>Lorry Number :</span>"+reg+ "</div><div class='lorry_name'><span>Location:</span>"+loc+ "</div><div><span>Speed:</span>"+spdval+ "</div><div><span>Today_Distance:</span>"+t_disval+ "</div><div><span>Update:</span>"+up_dateval+ "</div><div><span>Status:</span>"+statusval+ "</div>";

var infoWindow = new google.maps.InfoWindow({

content: content

});

var marker = new google.maps.Marker({

position: new google.maps.LatLng(parseFloat(js_lats[i]), parseFloat(js_longs[i])),

icon:icon,

map:map

});

/*marker.addListener('click', function() {

infowindow.open(map, marker);

});*/

google.maps.event.addListener(marker,'click', (function(marker,content,infoWindow){

return function() {

infoWindow.setContent(content);

infoWindow.open(map,marker);

};

})(marker,content,infoWindow));

}

map.fitBounds(bounds);

google.maps.event.addDomListener(window, "load");