// Affiche le sous-menu correspondant a la rubrique
function affiche_sous_menu(id_rub, evt, cell){
	
	if (document.getElementById && document.getElementById('td_rub_'+id_rub) != null && document.getElementById('rub_'+id_rub) != null){
		var x = document.getElementById('td_rub_'+id_rub).offsetLeft + 50;
		var y = document.getElementById('td_rub_'+id_rub).offsetTop + 19;

		document.getElementById('rub_'+id_rub).style.marginLeft=x+'px';
		document.getElementById('rub_'+id_rub).style.marginTop=y+'px';
		document.getElementById('rub_'+id_rub).style.display='block';
	}
	var laClasse = document.getElementById('td_rub_'+id_rub).className;
	if (laClasse != 'categories_survol' && laClasse != 'sous_categories_survol'){
		document.getElementById('td_rub_'+id_rub).className = document.getElementById('td_rub_'+id_rub).className+'_survol';
	}
}
//------------------------------------------------------------------------------
// Efface le sous-menu correspondant a la rubrique
function efface_sous_menu(id_rub, id_rub_parent){

	if (document.getElementById('rub_'+id_rub) != null){
		document.getElementById('rub_'+id_rub).style.display='none';
	}
	
	var laClasse = document.getElementById('td_rub_'+id_rub).className;
	if (laClasse == 'categories_survol'){
		if (document.getElementById('id_rub_par_old').value != id_rub_parent){
			document.getElementById('td_rub_'+id_rub).className = 'categories';
		}
	}
	else if (laClasse == 'sous_categories_survol'){
		document.getElementById('td_rub_'+id_rub).className = 'sous_categories';
	}
	
}