"Brother" droppable.

"Brother" droppable.


I did a little test with jquery ui draggable/droppable. I found a
little problem with "brother" element.
How to reproduce:
Go to: http://offsetzero.com/JQuery/
Drag the green square in the big gray quare 2 time. Resize them and
put one over the other. Pick a color (click on the bubble to choose
the color) and drag the paint bucket on the intersection of the 2
rectangle u dropped before. They will be colored. The problem is that
i don't want to color all of them if they are one over the other...
The top one should get colored and the other should not receive the
event.
I don't know if you can do something for that or if i need to find a
way by myself.... I tryed all tolerance but no one do what i want :D.