shutterstock/rickshaw — pull request #23 by bfolkens (2012-02-10 20:08:09+00:00)
Title: Added xFormatter/yFormatter for HoverDetail (with similar defaults)

Format y-axis HoverDetail with:

Single series, or default for all:

```javascript
var hoverDetail = new Rickshaw.Graph.HoverDetail( {
graph: graph,
yFormatter: function(y) { return('$' + y.toFixed(2)); }
} );
```

Multiple series:

```javascript
var hoverDetail = new Rickshaw.Graph.HoverDetail( {
graph: graph,
yFormatter: [
function(y) { return(y.toFixed(0)); },
function(y) { return('$' + y.toFixed(2)); }
]
} );
```

x-axis formatter also added as an option...