div#ad90{
	position:relative;
	height:90px;
	width:728px;
}
img#slug1{
	position:absolute;
	top:0px;
	left:0px;
	z-index:100;
}

div#ad160{
	position:relative;
	height:600px;
	width:160px;

}
img#slug2{
	position:absolute;
	top:0px;
	left:0px;
	z-index:100;
}
div#ad300{
	position:relative;
	width:300px;
	height:250px;
}
img#slug3{
	position:absolute;
	top:0px;
	left:0px;
	z-index:100;
}