Add animation to jquery UI dialog resizing

Add animation to jquery UI dialog resizing

Hi,

I have a jquery UI dialog on my page that I would like to resize at some point.
I would like to add some animation for the resizing proccess (something like show("slow") )

Unfortunatelly when I do

$("#myDialog").data("height.dialog", 120).show("slow");

The dialog gets resized but I don't see any animation effect...
I'm new to jquery. Am I doing something wrong?
??