How to move a div (keeping all instantiated js) to a new child div from the same div?

lets say I have this:

```
<div id="container">
 /*lots of content draggables, scrolls, ..*/
</div>

```

I want to get this:

```
<div id="container">
  <div class="innerzone">
    /*lots of content draggables, scrolls, ..*/
  </div>
</div>

```