Many Web designers don't like to write JavaScript,
Dreamweaver CS3
but if you use Dreamweaver you can create rollover images wherever you like with just a few steps. Dreamweaver installs the JavaScript for you, all you need to do is supply the two images. This tutorial works for versions of Dreamweaver back to Dreamweaver MX, and it may work for versions prior to that.
Dreamweaver CS3
Its true create rollover images in Dreamweaver its so easy but I prefer flash anyway