/*定义主body样式和通配样式*/
body
{
margin:0px 0px 0px;
background-image:url('../images/back_wallpaper.gif');
height:100%;

}
ul,li {
	padding:0px;
	margin:0px;
}
.imgnull {
	border:0px;
}
.imgbox {
	border:1px #CFCFCF solid;
	padding-top:2px;
	padding-bottom:2px;
	padding-left:2px;
	padding-right:2px;
}
/*定义头文件样式*/
#header {
	margin:0px auto;
	width:970px;
	height:113px;
	background-image:url('../images/header_background.jpg');
}
#headerline {
	margin:0px auto;
	width:970px;
}
/*定义主导航样式*/
#mainnav {
	width:660px;
	height:32px;
	padding-top:82px;
	margin-left:310px;
}
#mainnav div {
	float:left;
	width:110px;
	height:32px;
	line-height:32px;
	text-align:center;
	font-size:14px;
	font-weight:bold;
	color:#ffffff;
}
#mainnav div a{
	font-size:14px;
	font-weight:bold;
	color:#ffffff;
	text-decoration:none;
}
.mainnav_but {
    background-image:url('../images/mainnav_butback.gif');
}
.mainnav_font {
	font-size:14px;
	font-weight:bold;
	color:#000000;

}