1. Paste `multi-crowbar.js` into the browser developer console or use this [bookmarklet](http://bl.ocks.org/gka/raw/b2c2a92c07bba6d0d0ee579503abadcb/z.bookmarklet.html)
2. Call `multiCrowbar` function and pass a selector for the container div 

```js
multiCrowbar(".my-chart")
```

if you want to include html labels or captions you can pass another selector as second argument

```js
multiCrowbar(".my-chart", "h2.my-caption")
```