How do I connect to mongodb with node.js?

I have the node-mongodb-native driver.

There's apparently 0 documentation.

Is it something like this?

```
var mongo = require('mongodb/lib/mongodb'); 
var Db= new mongo.Db( dbname, new mongo.Server( 'mongolab.com', 27017, {}), {}); 

```

Where do I put the username and the password?

Also how do I insert something?

Thanks.