Firefox_Javascript under Flash

I have a quick question. If you use firefox and you go onto my homepage http://www.topbutton.com/ there is a rotating banner of Estee Lauder that has the option of viewing testimonials for the product being adverstised. The banner expands and shows a video. My question is that when this particular banner expands in firefox, it goes below my flash video player that is right next to it which isn’t good at all. I need it to expand and go over my flash video player. Can someone please show me how I would go about fixing this problem? The Estee Lauder banner is javascript and the video player is flash.

thank you all for you answers.
O.G.