This question is in regards to the following site, which many of you may be familiar with -

Does anyone know how they have dynamically resized the flash piece in this site?. When you click on one of the buttons (for example click on the blue 'What documents do I need' over on the right hand side) the flash piece extends left and right to both edges of the browser (which I can do) but it also extends downwards towards the bottom of the screen and then down past the bottom of the screen bringing the scrollbar into play (unless you're on a giant monitor).

How have they done this?, Can anyone help with this or give me a push in the right direction.