.div_body{
    margin-top:0px;
	width:900px;
	height:500px;
	background:#ffffff 
	
}

.div_header{
	width:100%;
	height:105px;	
	background:#ffffff
}

.div_headmenu{
	clear:both;
	float:center;
	width:900px;
	height:20px;
	background:#ffffff	
}

.div_menu{
	float:left;
	width:160px;
	height:100%;	
}

.div_content{
	float:left;
	width:540px;
	height:100%;
	
}


.div_ad{
	float:right;
	width:150px;
	height:780px;	
}


.div_footer{
	clear:both;
	float:left;
	width:100%;
	height:100px;
	background:#ffffff	
}


ul.aheader
{
list-style-type:none;
margin:0;
margin-left: 100px
padding:0;
overflow:hidden;
}
li.aheader
{
display:inline;
float:left;
}
a.aheader:link,a.aheader:visited
{
display:block;
width:100px;
float:center;
font-weight:bold;
color:#FFFFFF;
background-color:#ff0000;
text-align:center;
padding:0px;
text-decoration:none;

}
a.aheaderd:link,a.aheaderd:visited
{
display:block;
width:200px;
float:center;
font-weight:bold;
color:#FFFFFF;
background-color:#ff0000;
text-align:center;
padding:0px;
text-decoration:none;

}
a.aheader:hover,a.aheader:active
{
background-color:#900000;
}

a.aheaderd:hover,a.aheaderd:active
{
background-color:#900000;
}