#bb_btn {
	display: block;
	width: 100px;
	height: 19px;
	background: url(../vodimg/b_bb.gif) no-repeat 0 0;
	
}

#bb_btn a {
	display: block;
	width: 100px;
	height: 19px;
	background: url(../vodimg/b_bb.gif) no-repeat 0 0;
	
}

#bb_btn a:hover {
	display: block;
	width: 100px;
	height: 19px;
	background: url(../vodimg/b_bb.gif) no-repeat 0 -19px;
	
}

#nb_btn {
	display: block;
	width: 100px;
	height: 19px;
	background: url(../vodimg/b_nb.gif) no-repeat 0 0;
	
}

#nb_btn a {
	display: block;
	width: 100px;
	height: 19px;
	background: url(../vodimg/b_nb.gif) no-repeat 0 0;
	
}

#nb_btn a:hover {
	display: block;
	width: 100px;
	height: 19px;
	background: url(../vodimg/b_nb.gif) no-repeat 0 -19px;
	
}


#ques_btn {
	display: block;
	width: 180px;
	height: 20px;
	background: url(../vodimg/b_ques.gif) no-repeat 0 0;
	
}

#ques_btn a {
	display: block;
	width: 180px;
	height: 20px;
	background: url(../vodimg/b_ques.gif) no-repeat 0 0;
	
}

#ques_btn a:hover {
	display: block;
	width: 180px;
	height: 20px;
	background: url(../vodimg/b_ques.gif) no-repeat 0 -20px;
	
}