/* CSS 布局 */
#masthead {
	margin-left:auto;
	margin-right:auto;
	width: 1002px;
	background-image: url('../images/top.jpg');
	height: 220px;
}

#top_nav {
	margin-left:auto;
	margin-right:auto;
				background-image: url('../images/content.jpg');
				width:  1002px;
				height: 12px;
				top: 220px;
				position: static;
}

#container {
	margin-left:auto;
	margin-right:auto;
	background-image: url('../images/content.jpg');
	position: relative;
	width:  1002px;
}

#left_col {
				width: 32px;
				position: absolute;
				left: 0px;
				top: 0px;
}

#page_content {
				margin-right: 32px;
				margin-left: 32px;
				clip: rect(0px, auto, auto, auto);
				top: 0px;
}

#right_col {
				width: 32px;
				position: absolute;
				right: 0px;
				top: 0px;
}

#footer {
	margin-left:auto;
	margin-right:auto;
				width:  1002px;
				background-image: url('../images/foot.jpg');
				height: 220px;
				bottom: 0px;
				position: relative;
				z-index: auto;
}