Very nice plugin, been looking around for this kind of thing.
I have one question, and be aware that i am no expert on javascript:
Would lowering the number on the speed on line 52 (100) affect performance?
I tried tinkering with it by setting it to 10 to reduce the visual delay of the changing columns height when resizing the browser.
Now i know it is there for a good reason, and i can only guess it is there to prevent the resize event to fire to often?
But, i still had to ask :)
Thanks in advance.