#mainlayer {
	position:absolute;
	left:200px;
	top:100px;
	width:800px;
	height:600px;
}
#sidelayer {
	position:absolute;
	left:0px;
	top:366px;
	width:21px;
	height:234px;
	background-image:url(../schueler/machbar/bg_start.gif);
}
#topmenu {
	position:absolute;
	left:0px;
	top:0px;
	width:800px;
	height:366px;
}
#contentlayer {
	position:absolute;
	left:21px;
	top:366px;
	width:779px;
	height:234px;
	padding:35px;
	overflow:auto;
	background-image:url(../schueler/machbar/bg_main.jpg);
}