How do I make a Bootstrap 3.0 modal dialog draggable?

How do I make a Bootstrap 3.0 modal dialog draggable?

How do I make a Bootstrap 3.0 modal dialog draggable?
I have tried various examples, with zero luck. I assume they are not
applicable to Bootstrap 3.0, but that may be a bad assumption.
Am I over-complicating this?
With jQuery, I figured I would just do this:
$("#idForModal").draggable();
But, it does nothing, and there are no console errors in WebKit.
EDIT: Following added.
Perhaps it is because a modal is an iFrame, and can't be dragged? Nope -
that's isn't it, because this works. http://jsfiddle.net/nj6ST/show/