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Totally random
<!DOCTYPE html>
<html>
<head>
<title>Something crazy</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<link rel="shortcut icon" href="http://cartodb.com/assets/favicon.ico" />
<style>
html, body, #map {
height: 100%;
padding: 0;
margin: 0;
background: #fff;
}
</style>
<link rel="stylesheet" href="http://libs.cartocdn.com/cartodb.js/v3/themes/css/cartodb.css" />
</head>
<body>
<div id="map"></div>
<!-- include cartodb.js library -->
<script src="http://libs.cartocdn.com/cartodb.js/v3/cartodb.js"></script>
<script>
function toColor(num) {
num >>>= 0;
var b = num & 0xFF,
g = (num & 0xFF00) >>> 8,
r = (num & 0xFF0000) >>> 16;
return "rgb(" + [r, g, b].join(",") + ")";
}
function main() {
// initiate our leaflet map
map = L.map('map', {
zoomControl: true,
center: [39, -98],
zoom: 5
})
cartodb.createLayer(map, 'http://team.cartodb.com/api/v2/viz/75435924-3d33-11e4-818b-0e73339ffa50/viz.json')
.addTo(map)
.on('done', function(layer) {
var time = (new Date).getTime();
var color = toColor(time);
var value = Math.floor(Math.random()*10000)
layer.getSubLayer(0).setCartoCSS("#gilt_postal_codes{ polygon-fill: #ea4c88; [pop_total > "+value+"] { polygon-fill: "+color+";} polygon-opacity: 0.7; }");
});
}
window.onload = main;
</script>
</body>
</html>
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