#maincontent img.bg {
//	z-index:				-1;
//	opacity:				0.5;
//	filter:					alpha(opacity=50);
}

#maincontent div.content {
	margin:					10px;
	z-index:				0;
}

#maincontent div.bg {
	position:				relative;
	display:				block;
	
//	z-index:				99;
}

#maincontent div.bg img {
	position:				fixed;
	height:					500px;
	margin:					0 auto;
	z-index:				99;
	opacity:				0.3;
}