Buttons are a common element to many web sites. Most of the time you will create one button and then just add an effect to make a rollover. Commonly used effects are: emboss, engrave, blur, and sharpen. Many times just the change of text color is used to create rollovers.

Create your first button with emboss:
Then engrave and “save as”

Notice the rollover effect. Improves with text color change.

Create your first button with color scheme:
Then change colors and “save as”:

Check out the rollover or “hover” action.

An effect with just text color change:

Put rollovers in a table and
use  “0” for all properties.

Buttons using “blur”:

Also works with just text: