function prepare_images(){couch1 = new Image;couch2 = new Image;
woods1 = new Image;woods2 = new Image;
livingroom21 = new Image;
livingroom22 = new Image;
stairs1 = new Image;
stairs2 = new Image;
couch1.src = 'http://ywwg.com/images/cc/melshole/couch_treated-s.jpg';
couch2.src = 'http://ywwg.com/images/cc/melshole/couch_orig-s.jpg';
woods1.src = 'http://ywwg.com/images/cc/melshole/woods_treated-s.jpg';
woods2.src = 'http://ywwg.com/images/cc/melshole/woods_orig-s.jpg';
livingroom21.src = 'http://ywwg.com/images/cc/melshole/livingroom2_treated-s.jpg';
livingroom22.src = 'http://ywwg.com/images/cc/melshole/livingroom2_orig-s.jpg';
stairs1.src = 'http://ywwg.com/images/cc/melshole/stairs_treated-s.jpg';
stairs2.src = 'http://ywwg.com/images/cc/melshole/stairs_orig-s.jpg';
}