D3.js on Mapbox/Leaflet Map

<!--D3 -->

<script src='https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js'></script>

<!--Leaflet / Mapbox -->

<script src='https://api.tiles.mapbox.com/mapbox.js/v2.1.9/mapbox.js'></script>

<link href='https://api.tiles.mapbox.com/mapbox.js/v2.1.9/mapbox.css' rel='stylesheet' />

​

<!--Div to hold the map. Inline styling is horrible I know, it's just for demo purpose... -->

<div id="map" style="position: absolute; height: 100%; width: 100%;"></div>