.bt_bg {
	background-image: url(img/text_small.gif);
	background-repeat: no-repeat;
}
.bt_bg2 {
	background-image: url(img/text_default.gif);
	background-repeat: no-repeat;
}
.bt_bg3 {
	background-image: url(img/text_large.gif);
	background-repeat: no-repeat;
}