#bj_a {background-image: url(/xiala/c_01.jpg);background-repeat: no-repeat;padding-left: 520px;height:57px;width: 1200px;margin-right: 200px;}
.xw_a {	list-style-type: none;	width: 400px;	padding-top: 7px;	height:40px;}
#bj_a .xwa_a {width: 500px;height: 57px; }
.xu_li_a {	display: block;	float: left;	width: 111px;	height: 40px;	margin-right: 5px;}
.xu_lia_a {	display: block;	float: left;	width: 111px;	height: 40px;	margin-right: 5px;}
.xu_lib_a {	display: block;	float: left;	width: 111px;	height: 40px;	margin-right: 5px;}
a.a_av{background-image: url(/xiala/a_03.jpg);display: block;	float: left;	height: 37px;	width: 111px;}
a.a_av:hover {	background-image: url(/xiala/b_03.jpg);	background-repeat: no-repeat;	height: 40px;}
a.a_bv{ background-image: url(/xiala/a_05.jpg);display: block;	float: left;	height: 37px;	width: 111px;}
a.a_bv:hover {	background-image: url(/xiala/b_05.jpg);	background-repeat: no-repeat;	height: 40px;}
a.a_cv{background-image: url(/xiala/a_07.jpg);display: block;	float: left;	height: 37px;	width: 111px;}
a.a_cv:hover {	background-image: url(/xiala/b_07.jpg);	background-repeat: no-repeat;	height: 40px;}
.nav_bottom_a{width:100%;background-image: url(/xiala/ava.jpg);position:fixed;z-index:1000;_position: absolute;
_top:expression(eval(documentElement.scrollTop + documentElement.clientHeight-this.offsetHeight));overflow:visible;bottom:0px;left:0;background-repeat: repeat;}
.nav_bottom_a .nav_bottom_box_a{width:1200px; margin:0 auto; height:57px; margin-top:1px;	}
/*µ×²¿²Ëµ¥(ÐÂ)*/
.bottom_center_a{ width:1200px; height:57px; margin-left:auto; margin-right:auto;}