Map chart with leaflet

by TheSneak

HTML

<script src="http://leaflet.cloudmade.com/examples/us-states.js"></script>
<script src="http://leaflet.cloudmade.com/dist/leaflet.js"></script>
<link rel="stylesheet" href="http://leaflet.cloudmade.com/dist/leaflet.css">
<div id="map"></div>

CSS

#map {
            width: 800px;
            height: 500px;
        }
.info {
            padding: 6px 8px;
            font: 14px/16px Arial, Helvetica, sans-serif;
            background: white;
            background: rgba(255,255,255,0.8);
            box-shadow: 0 0 15px rgba(0,0,0,0.2);
            border-radius: 5px;
        }
        .info h4 {
            margin: 0 0 5px;
            color: #777;
        }

        .legend {
            text-align: left;
            line-height: 18px;
            color: #555;
        }
        .legend i {
            width: 18px;
            height: 18px;
            float: left;
            margin-right: 8px;
            opacity: 0.7;
        }

JavaScript

var map = L.map('map').setView([37.8, -96], 4);

var cloudmade = L.tileLayer('http://{s}.tile.cloudmade.com/{key}/{styleId}/256/{z}/{x}/{y}.png', {
    attribution: 'Map data &copy; 2011 OpenStreetMap contributors, Imagery &copy; 2011 CloudMade',
    key: 'BC9A493B41014CAABB98F0471D759707',
    styleId: 22677
}).addTo(map);


// control that shows state info on hover
var info = L.control();

// get color depending on population density value

function getColor(d) {
    return d > 1000 ? '#800026' : d > 500 ? '#BD0026' : d > 200 ? '#E31A1C' : d > 100 ? '#FC4E2A' : d > 50 ? '#FD8D3C' : d > 20 ? '#FEB24C' : d > 10 ? '#FED976' : '#FFEDA0';
}

function style(feature) {
    return {
        weight: 1,
        opacity: 0.5,
        color: 'navy',
        dashArray: '2',
        fillOpacity: 0.7,
        fillColor: getColor(feature.properties.density)
    };
}

function highlightFeature(e) {
    var layer = e.target;

    layer.setStyle({
        weight: 5,
        color: '#666',
        dashArray: '',
        fillOpacity: 0.7
    });

    if (!L.Browser.ie && !L.Browser.opera) {
        layer.bringToFront();
    }

    info.update(layer.feature.properties);
}

var geojson;

geojson = L.geoJson(statesData, {
    style: style
    
}).addTo(map);