sources:http://www.flickr.com/photos/bildpark/2348864879/ http://www.flickr.com/photos/bildpark/2349704308/ http://www.sxc.hu/photo/1138666 http://www.photoshoptextures.com/wood-textures/wood-texture.jpg http://www.flickr.com/photos/7202153@N03/2720544965/
