#main_div {
	width:900px;
	margin:auto;
}
#top{
	width:900px;
	padding-top:3px;
	position:relative;
}
#bottom{
	width:100%;
	background-image:url(../images/bottom_bg.jpg);
	background-repeat: repeat-x;
	background-position: left top;
	position:relative;
	height:47px;
	line-height:47px;
	clear:both;
}
#bottommain{
	width: 900px;
	margin:auto;
	position:relative;
		
}