How to drop in same position?

[contestant]

Hi
How can drop an element to same position that drag on it?
In the other words, How can get the current dragged element position to recreate it in same position.
Thanks

[contestant]

Thank's for your very quick answer.
I fixed it myself as below:

var obj = $(source).draggable('proxy');
                if(obj)
                    elm.css({ position:'absolute', left:obj.css("left").replace(/px/, "") - $("#content").offset().left, top:obj.css("top").replace(/px/, "") - $("#content").offset().top});