I am working with draggable/droppable in jquery ui. 

So if I have two divs.  The first div has child divs that are draggable.  I then have a second div which is a place where you can drop the draggable elements.  Once they are dropped I want them to no longer be children of the first div, but to become children of the div they were dropped onto. 

Is there a standard way to make this happen?