author: Ewen Elder <glomainn at yahoo dot co dot uk> <ewen at jainaewen dot com>
version: 1.0
todo: Recaluclate height if extra content is loaded into one of the elements after it has been resized possibly detect if the highest column has a fixed CSS height to being with or is set to 'auto'; if set to auto then leave as auto so that it well expend or contract naturally as it would normally.