Aligning nested objects

Hi,

I've been looking around the docs but could not find a way to do this. Say I have a nested javascript object, such as this:

```
var collection = {
title: "Star Wars",
author: "George Lucas & others",
episodes: {
"IV": "A New Hope",
"V": "The Empire Strikes Back",
"VI": "Revenge of the Sith"
}
}
```

What is the fastest way to align the colons taking into account the nesting, so it becomes like this?

```
var collection = {
title : "Star Wars",
author : "George Lucas & others",
episodes: {
"IV": "A New Hope",
"V" : "The Empire Strikes Back",
"VI": "Revenge of the Sith"
}
}
```
The only way I've found so far is manually selecting every sub-object, but that's a bit painful with lots of nesting / lots of individual objects.