function afficheSsMenu(num){
	for(i=1;i<=3;i++){
		document.getElementById('conteneur_sous_menu'+i).style.display='none';
	}
	document.getElementById('conteneur_sous_menu'+num).style.display='block';
}

function afficheSsMenuEnCours(cat){
	afficheSsMenu(cat.substring(3,4));
}