preloadOff = new Image(56,13);
preloadOff.src ="index/index_06.gif";
preloadOn =new Image(56,13);
preloadOn.src ="index/index_06b.gif";

enterOff = new Image(44,13);
enterOff.src ="index/index_08.gif";
enterOn =new Image(44,13);
enterOn.src ="index/index_08b.gif";

skipOff = new Image(44,13);
skipOff.src ="index/skip.gif";
skipOn =new Image(44,13);
skipOn.src ="index/index_08b.gif";