tbtn01 = new Image(); tbtn01.src = "img/tbtn01.gif";
tbtn01o = new Image(); tbtn01o.src = "img/tbtn01o.gif";
tbtn02 = new Image(); tbtn02.src = "img/tbtn02.gif";
tbtn02o = new Image(); tbtn02o.src = "img/tbtn02o.gif";
tbtn03 = new Image(); tbtn03.src = "img/tbtn03.gif";
tbtn03o = new Image(); tbtn03o.src = "img/tbtn03o.gif";
tbtn04 = new Image(); tbtn04.src = "img/tbtn04.gif";
tbtn04o = new Image(); tbtn04o.src = "img/tbtn04o.gif";