This software allows the user to easily create any graphics for different websites. It makes things easier. This is the best image editing software. It creates bitmap and vector images perfectly. It is also known as Macromedia fireworks. You can use this software for website designing with the integration of other Adobe products like Dreamweaver.
The result is essentially the same, however. A mask lets you choose which part of a graphic is exposed and which part is covered by the mask. Two vector shapes with masks applied to them.
Fireworks CS5 Tutorial - Rollover Button/Image