function vente_entree(id){
					document.getElementById(id).style.backgroundColor = '#D4EDF2';
		}
		function vente_sortie(id){
					document.getElementById(id).style.backgroundColor = '#FFFFCF';
		}
		function location_entree(id){
					document.getElementById(id).style.backgroundColor = '#FFF280';
		}
		function location_sortie(id){
					document.getElementById(id).style.backgroundColor = '#FFFFCF';
		}