How do you create an html photo background for a website that fades into a new photo every 5 seconds?

On my website I have a photo that is part of the background. I am trying to find out how I could have that photo change every 5 seconds. Do I need to use a slideshow? I have Dreamweaver and Fireworks. My website is www.7springsfarm.biz. You will see the picture I want to change at the top of the page.How do you create an html photo background for a website that fades into a new photo every 5 seconds?
Might try this tool:



ANVSOFT Flash Slide Show Maker - http://flash.dvd-photo-slideshow.com/mys



or this one:



Photo fades - http://www.clagnut.com/blog/1299/



You may like this one better:



http://www.dynamicdrive.com/dynamicindex



Ron