Door: kelbytv.com/photoshopkillertips/
Explore the Layer Styles dialog and review the editable options.
http://kelbytv.com/photoshopkillertips/2010/05/03/adjusting-layer-styles-2/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+PhotoshopKillerTips+%28Photoshop+Killer+Tips+%28Video%29%29