Setting UL min-height depending on parent height

[Raceb0y]

Basically we have a shop category navigation which goes into 3 levels. What we need to do it get it so that the height of the UL extends to be at least the height of its child.So say for example #nav ul was 600px, #nav ul ul would automatically become at least 600px itself. However if #nav ul ul ul was 750px then it would need to be able to be that tall, rather than being restricted to 600px.We can get it so that if the parent is 600px all children are set to .height of 600px, but how do you do this as min-height?See link for example:As you can see the 2nd level adjusts to the height of the parent but then the 3rd level is restricted to that length as the js sets the height, rather than min-heightThanks,Mike