.interface-haut {
	background-image: url(images/interface/haut.jpg);
	background-repeat: repeat-y;
	background-position: center top;
}
.interface-gauche {
	background-image: url(images/interface/gauche-side.jpg);
	background-repeat: repeat-y;
	background-position: center top;
}
.interface-droite {
	background-image: url(images/interface/droite-side.jpg);
	background-repeat: repeat-y;
	background-position: left center;
}
.extreme-droite {
	background-image: url(images/interface/xtrem-droite.jpg);
	background-position: left top;
}
.extreme-gauche {
	background-image: url(images/interface/xtrem-gauche.jpg);
	background-position: right top;
}