#gauche {
	width: 320px;
	position: relative;
	float: left;
	z-index: 60;
	padding-top: 5px;
	padding-bottom: 5px;
	height: auto;
}



#droite {
	float: right;
	position: relative;
	width: 500px;
	z-index: 39;
	padding-top: 5px;
	padding-bottom: 5px;
	height: auto;
}
#plan_haut {
	height: 160px;
}
#plan_bas {
	height: 115px;
	padding-top: 25px;
}